out.js
(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
/*global document */
'use strict';
var d3 = require('d3');
var msg2svg = require('./index.js').bind(null, document);
var redraw = function(seed) {
d3.select('svg')
.remove();
var svg = msg2svg(seed, {
width: 1000,
height: 400
});
d3.select('body')
.node().appendChild(svg.node());
};
redraw(Math.random());
document.getElementById('redraw').addEventListener('click', function() {
redraw(document.getElementById('seed').value);
});
},{"./index.js":5,"d3":6}],2:[function(require,module,exports){
'use strict';
var getColor = require('../helpers/colors');
module.exports = function(svg, getRandom) {
var width = svg.attr('width');
var height = svg.attr('height');
// Find out how many circles.
var numCirlces = getRandom(Math.floor(width / 48)) + 1;
var added = 0;
while (added < numCirlces) {
// Add a circle then.
var fill = getColor(getRandom);
var x1 = getRandom(width);
var y1 = getRandom(height);
// Don't make it too big.
var radiusMax = Math.floor(height / 4);
// Adding fill is 50/50.
var addStroke = getRandom(2) + 1;
var strokeColor = 'none';
var strokeWidth = 0;
if (addStroke === 1) {
strokeColor = getColor(getRandom);
strokeWidth = getRandom(Math.floor(height / 10)) + 1;
}
svg.append('ellipse')
.attr('cx', x1)
.attr('cy', y1)
.attr('rx', getRandom(radiusMax) + 2)
.attr('ry', getRandom(radiusMax) + 2)
.attr('fill', fill)
.attr('stroke', strokeColor)
.attr('stroke-width', strokeWidth);
added += 1;
}
};
},{"../helpers/colors":4}],3:[function(require,module,exports){
'use strict';
var getColor = require('../helpers/colors');
var d3 = require('d3');
module.exports = function(svgContainer, getRandom) {
var width = svgContainer.attr('width');
var height = svgContainer.attr('height');
var lineFunction = d3.line()
.x(function(d) { return d.x; })
.y(function(d) { return d.y; })
var numLines = getRandom(Math.floor(width / 20)) + 1;
// Make some lines.
var linesAdded = 0;
while (linesAdded < numLines) {
var lines = [];
lines.push({
x: getRandom(width),
y: getRandom(height)
});
lines.push({
x: getRandom(width),
y: getRandom(height)
});
// Adding fill is 50/50.
var addFill = getRandom(2) + 1;
var fill = 'none';
if (addFill === 1) {
fill = getColor(getRandom);
}
svgContainer.append('path')
.attr('d', lineFunction(lines))
.attr('stroke', getColor(getRandom))
.attr('stroke-width', getRandom(Math.floor(height / 4)))
.attr('fill', fill);
linesAdded += 1;
}
};
},{"../helpers/colors":4,"d3":6}],4:[function(require,module,exports){
'use strict';
module.exports = function(getRandom) {
var colors = [
'blue',
'yellow',
'green',
'purple',
'red',
'orange',
'white',
'black',
'grey',
'violet',
'skyblue',
'olive',
'navy'
];
return colors[Math.floor(getRandom(colors.length))];
};
},{}],5:[function(require,module,exports){
'use strict';
var d3 = require('d3');
var seed = require('seed-random');
var addLines = require('./drawers/lines');
var addCircles = require('./drawers/circles');
module.exports = generateSvg;
function generateSvg(document, randomseed, opts) {
if (!opts) {
opts = {};
}
opts.width = opts.width || 120;
opts.height = opts.height || 40;
var random = seed(randomseed);
var getRandom = function(max) {
return Math.floor(random() * max);
};
var svg = document.createElementNS(d3.namespaces.svg, 'svg');
var svgContainer = d3.select(svg);
svgContainer
.attr('width', opts.width)
.attr('height', opts.height);
addLines(svgContainer, getRandom);
addCircles(svgContainer, getRandom);
var svgGraph = svgContainer
.attr('xmlns', 'http://www.w3.org/2000/svg');
return svgGraph;
}
},{"./drawers/circles":2,"./drawers/lines":3,"d3":6,"seed-random":7}],6:[function(require,module,exports){
// https://d3js.org Version 4.1.1. Copyright 2016 Mike Bostock.
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
typeof define === 'function' && define.amd ? define(['exports'], factory) :
(factory((global.d3 = global.d3 || {})));
}(this, function (exports) { 'use strict';
var version = "4.1.1";
function ascending(a, b) {
return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;
}
function bisector(compare) {
if (compare.length === 1) compare = ascendingComparator(compare);
return {
left: function(a, x, lo, hi) {
if (lo == null) lo = 0;
if (hi == null) hi = a.length;
while (lo < hi) {
var mid = lo + hi >>> 1;
if (compare(a[mid], x) < 0) lo = mid + 1;
else hi = mid;
}
return lo;
},
right: function(a, x, lo, hi) {
if (lo == null) lo = 0;
if (hi == null) hi = a.length;
while (lo < hi) {
var mid = lo + hi >>> 1;
if (compare(a[mid], x) > 0) hi = mid;
else lo = mid + 1;
}
return lo;
}
};
}
function ascendingComparator(f) {
return function(d, x) {
return ascending(f(d), x);
};
}
var ascendingBisect = bisector(ascending);
var bisectRight = ascendingBisect.right;
var bisectLeft = ascendingBisect.left;
function descending(a, b) {
return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN;
}
function number(x) {
return x === null ? NaN : +x;
}
function variance(array, f) {
var n = array.length,
m = 0,
a,
d,
s = 0,
i = -1,
j = 0;
if (f == null) {
while (++i < n) {
if (!isNaN(a = number(array[i]))) {
d = a - m;
m += d / ++j;
s += d * (a - m);
}
}
}
else {
while (++i < n) {
if (!isNaN(a = number(f(array[i], i, array)))) {
d = a - m;
m += d / ++j;
s += d * (a - m);
}
}
}
if (j > 1) return s / (j - 1);
}
function deviation(array, f) {
var v = variance(array, f);
return v ? Math.sqrt(v) : v;
}
function extent(array, f) {
var i = -1,
n = array.length,
a,
b,
c;
if (f == null) {
while (++i < n) if ((b = array[i]) != null && b >= b) { a = c = b; break; }
while (++i < n) if ((b = array[i]) != null) {
if (a > b) a = b;
if (c < b) c = b;
}
}
else {
while (++i < n) if ((b = f(array[i], i, array)) != null && b >= b) { a = c = b; break; }
while (++i < n) if ((b = f(array[i], i, array)) != null) {
if (a > b) a = b;
if (c < b) c = b;
}
}
return [a, c];
}
var array = Array.prototype;
var slice = array.slice;
var map = array.map;
function constant(x) {
return function() {
return x;
};
}
function identity(x) {
return x;
}
function range(start, stop, step) {
start = +start, stop = +stop, step = (n = arguments.length) < 2 ? (stop = start, start = 0, 1) : n < 3 ? 1 : +step;
var i = -1,
n = Math.max(0, Math.ceil((stop - start) / step)) | 0,
range = new Array(n);
while (++i < n) {
range[i] = start + i * step;
}
return range;
}
var e10 = Math.sqrt(50);
var e5 = Math.sqrt(10);
var e2 = Math.sqrt(2);
function ticks(start, stop, count) {
var step = tickStep(start, stop, count);
return range(
Math.ceil(start / step) * step,
Math.floor(stop / step) * step + step / 2, // inclusive
step
);
}
function tickStep(start, stop, count) {
var step0 = Math.abs(stop - start) / Math.max(0, count),
step1 = Math.pow(10, Math.floor(Math.log(step0) / Math.LN10)),
error = step0 / step1;
if (error >= e10) step1 *= 10;
else if (error >= e5) step1 *= 5;
else if (error >= e2) step1 *= 2;
return stop < start ? -step1 : step1;
}
function sturges(values) {
return Math.ceil(Math.log(values.length) / Math.LN2) + 1;
}
function histogram() {
var value = identity,
domain = extent,
threshold = sturges;
function histogram(data) {
var i,
n = data.length,
x,
values = new Array(n);
for (i = 0; i < n; ++i) {
values[i] = value(data[i], i, data);
}
var xz = domain(values),
x0 = xz[0],
x1 = xz[1],
tz = threshold(values, x0, x1);
// Convert number of thresholds into uniform thresholds.
if (!Array.isArray(tz)) tz = ticks(x0, x1, tz);
// Remove any thresholds outside the domain.
var m = tz.length;
while (tz[0] <= x0) tz.shift(), --m;
while (tz[m - 1] >= x1) tz.pop(), --m;
var bins = new Array(m + 1),
bin;
// Initialize bins.
for (i = 0; i <= m; ++i) {
bin = bins[i] = [];
bin.x0 = i > 0 ? tz[i - 1] : x0;
bin.x1 = i < m ? tz[i] : x1;
}
// Assign data to bins by value, ignoring any outside the domain.
for (i = 0; i < n; ++i) {
x = values[i];
if (x0 <= x && x <= x1) {
bins[bisectRight(tz, x, 0, m)].push(data[i]);
}
}
return bins;
}
histogram.value = function(_) {
return arguments.length ? (value = typeof _ === "function" ? _ : constant(_), histogram) : value;
};
histogram.domain = function(_) {
return arguments.length ? (domain = typeof _ === "function" ? _ : constant([_[0], _[1]]), histogram) : domain;
};
histogram.thresholds = function(_) {
return arguments.length ? (threshold = typeof _ === "function" ? _ : Array.isArray(_) ? constant(slice.call(_)) : constant(_), histogram) : threshold;
};
return histogram;
}
function threshold(array, p, f) {
if (f == null) f = number;
if (!(n = array.length)) return;
if ((p = +p) <= 0 || n < 2) return +f(array[0], 0, array);
if (p >= 1) return +f(array[n - 1], n - 1, array);
var n,
h = (n - 1) * p,
i = Math.floor(h),
a = +f(array[i], i, array),
b = +f(array[i + 1], i + 1, array);
return a + (b - a) * (h - i);
}
function freedmanDiaconis(values, min, max) {
values = map.call(values, number).sort(ascending);
return Math.ceil((max - min) / (2 * (threshold(values, 0.75) - threshold(values, 0.25)) * Math.pow(values.length, -1 / 3)));
}
function scott(values, min, max) {
return Math.ceil((max - min) / (3.5 * deviation(values) * Math.pow(values.length, -1 / 3)));
}
function max(array, f) {
var i = -1,
n = array.length,
a,
b;
if (f == null) {
while (++i < n) if ((b = array[i]) != null && b >= b) { a = b; break; }
while (++i < n) if ((b = array[i]) != null && b > a) a = b;
}
else {
while (++i < n) if ((b = f(array[i], i, array)) != null && b >= b) { a = b; break; }
while (++i < n) if ((b = f(array[i], i, array)) != null && b > a) a = b;
}
return a;
}
function mean(array, f) {
var s = 0,
n = array.length,
a,
i = -1,
j = n;
if (f == null) {
while (++i < n) if (!isNaN(a = number(array[i]))) s += a; else --j;
}
else {
while (++i < n) if (!isNaN(a = number(f(array[i], i, array)))) s += a; else --j;
}
if (j) return s / j;
}
function median(array, f) {
var numbers = [],
n = array.length,
a,
i = -1;
if (f == null) {
while (++i < n) if (!isNaN(a = number(array[i]))) numbers.push(a);
}
else {
while (++i < n) if (!isNaN(a = number(f(array[i], i, array)))) numbers.push(a);
}
return threshold(numbers.sort(ascending), 0.5);
}
function merge(arrays) {
var n = arrays.length,
m,
i = -1,
j = 0,
merged,
array;
while (++i < n) j += arrays[i].length;
merged = new Array(j);
while (--n >= 0) {
array = arrays[n];
m = array.length;
while (--m >= 0) {
merged[--j] = array[m];
}
}
return merged;
}
function min(array, f) {
var i = -1,
n = array.length,
a,
b;
if (f == null) {
while (++i < n) if ((b = array[i]) != null && b >= b) { a = b; break; }
while (++i < n) if ((b = array[i]) != null && a > b) a = b;
}
else {
while (++i < n) if ((b = f(array[i], i, array)) != null && b >= b) { a = b; break; }
while (++i < n) if ((b = f(array[i], i, array)) != null && a > b) a = b;
}
return a;
}
function pairs(array) {
var i = 0, n = array.length - 1, p = array[0], pairs = new Array(n < 0 ? 0 : n);
while (i < n) pairs[i] = [p, p = array[++i]];
return pairs;
}
function permute(array, indexes) {
var i = indexes.length, permutes = new Array(i);
while (i--) permutes[i] = array[indexes[i]];
return permutes;
}
function scan(array, compare) {
if (!(n = array.length)) return;
var i = 0,
n,
j = 0,
xi,
xj = array[j];
if (!compare) compare = ascending;
while (++i < n) if (compare(xi = array[i], xj) < 0 || compare(xj, xj) !== 0) xj = xi, j = i;
if (compare(xj, xj) === 0) return j;
}
function shuffle(array, i0, i1) {
var m = (i1 == null ? array.length : i1) - (i0 = i0 == null ? 0 : +i0),
t,
i;
while (m) {
i = Math.random() * m-- | 0;
t = array[m + i0];
array[m + i0] = array[i + i0];
array[i + i0] = t;
}
return array;
}
function sum(array, f) {
var s = 0,
n = array.length,
a,
i = -1;
if (f == null) {
while (++i < n) if (a = +array[i]) s += a; // Note: zero and null are equivalent.
}
else {
while (++i < n) if (a = +f(array[i], i, array)) s += a;
}
return s;
}
function transpose(matrix) {
if (!(n = matrix.length)) return [];
for (var i = -1, m = min(matrix, length), transpose = new Array(m); ++i < m;) {
for (var j = -1, n, row = transpose[i] = new Array(n); ++j < n;) {
row[j] = matrix[j][i];
}
}
return transpose;
}
function length(d) {
return d.length;
}
function zip() {
return transpose(arguments);
}
var prefix = "$";
function Map() {}
Map.prototype = map$1.prototype = {
constructor: Map,
has: function(key) {
return (prefix + key) in this;
},
get: function(key) {
return this[prefix + key];
},
set: function(key, value) {
this[prefix + key] = value;
return this;
},
remove: function(key) {
var property = prefix + key;
return property in this && delete this[property];
},
clear: function() {
for (var property in this) if (property[0] === prefix) delete this[property];
},
keys: function() {
var keys = [];
for (var property in this) if (property[0] === prefix) keys.push(property.slice(1));
return keys;
},
values: function() {
var values = [];
for (var property in this) if (property[0] === prefix) values.push(this[property]);
return values;
},
entries: function() {
var entries = [];
for (var property in this) if (property[0] === prefix) entries.push({key: property.slice(1), value: this[property]});
return entries;
},
size: function() {
var size = 0;
for (var property in this) if (property[0] === prefix) ++size;
return size;
},
empty: function() {
for (var property in this) if (property[0] === prefix) return false;
return true;
},
each: function(f) {
for (var property in this) if (property[0] === prefix) f(this[property], property.slice(1), this);
}
};
function map$1(object, f) {
var map = new Map;
// Copy constructor.
if (object instanceof Map) object.each(function(value, key) { map.set(key, value); });
// Index array by numeric index or specified key function.
else if (Array.isArray(object)) {
var i = -1,
n = object.length,
o;
if (f == null) while (++i < n) map.set(i, object[i]);
else while (++i < n) map.set(f(o = object[i], i, object), o);
}
// Convert object to map.
else if (object) for (var key in object) map.set(key, object[key]);
return map;
}
function nest() {
var keys = [],
sortKeys = [],
sortValues,
rollup,
nest;
function apply(array, depth, createResult, setResult) {
if (depth >= keys.length) return rollup != null
? rollup(array) : (sortValues != null
? array.sort(sortValues)
: array);
var i = -1,
n = array.length,
key = keys[depth++],
keyValue,
value,
valuesByKey = map$1(),
values,
result = createResult();
while (++i < n) {
if (values = valuesByKey.get(keyValue = key(value = array[i]) + "")) {
values.push(value);
} else {
valuesByKey.set(keyValue, [value]);
}
}
valuesByKey.each(function(values, key) {
setResult(result, key, apply(values, depth, createResult, setResult));
});
return result;
}
function entries(map, depth) {
if (++depth > keys.length) return map;
var array, sortKey = sortKeys[depth - 1];
if (rollup != null && depth >= keys.length) array = map.entries();
else array = [], map.each(function(v, k) { array.push({key: k, values: entries(v, depth)}); });
return sortKey != null ? array.sort(function(a, b) { return sortKey(a.key, b.key); }) : array;
}
return nest = {
object: function(array) { return apply(array, 0, createObject, setObject); },
map: function(array) { return apply(array, 0, createMap, setMap); },
entries: function(array) { return entries(apply(array, 0, createMap, setMap), 0); },
key: function(d) { keys.push(d); return nest; },
sortKeys: function(order) { sortKeys[keys.length - 1] = order; return nest; },
sortValues: function(order) { sortValues = order; return nest; },
rollup: function(f) { rollup = f; return nest; }
};
}
function createObject() {
return {};
}
function setObject(object, key, value) {
object[key] = value;
}
function createMap() {
return map$1();
}
function setMap(map, key, value) {
map.set(key, value);
}
function Set() {}
var proto = map$1.prototype;
Set.prototype = set.prototype = {
constructor: Set,
has: proto.has,
add: function(value) {
value += "";
this[prefix + value] = value;
return this;
},
remove: proto.remove,
clear: proto.clear,
values: proto.keys,
size: proto.size,
empty: proto.empty,
each: proto.each
};
function set(object, f) {
var set = new Set;
// Copy constructor.
if (object instanceof Set) object.each(function(value) { set.add(value); });
// Otherwise, assume it’s an array.
else if (object) {
var i = -1, n = object.length;
if (f == null) while (++i < n) set.add(object[i]);
else while (++i < n) set.add(f(object[i], i, object));
}
return set;
}
function keys(map) {
var keys = [];
for (var key in map) keys.push(key);
return keys;
}
function values(map) {
var values = [];
for (var key in map) values.push(map[key]);
return values;
}
function entries(map) {
var entries = [];
for (var key in map) entries.push({key: key, value: map[key]});
return entries;
}
function uniform(min, max) {
min = min == null ? 0 : +min;
max = max == null ? 1 : +max;
if (arguments.length === 1) max = min, min = 0;
else max -= min;
return function() {
return Math.random() * max + min;
};
}
function normal(mu, sigma) {
var x, r;
mu = mu == null ? 0 : +mu;
sigma = sigma == null ? 1 : +sigma;
return function() {
var y;
// If available, use the second previously-generated uniform random.
if (x != null) y = x, x = null;
// Otherwise, generate a new x and y.
else do {
x = Math.random() * 2 - 1;
y = Math.random() * 2 - 1;
r = x * x + y * y;
} while (!r || r > 1);
return mu + sigma * y * Math.sqrt(-2 * Math.log(r) / r);
};
}
function logNormal() {
var randomNormal = normal.apply(this, arguments);
return function() {
return Math.exp(randomNormal());
};
}
function irwinHall(n) {
return function() {
for (var sum = 0, i = 0; i < n; ++i) sum += Math.random();
return sum;
};
}
function bates(n) {
var randomIrwinHall = irwinHall(n);
return function() {
return randomIrwinHall() / n;
};
}
function exponential(lambda) {
return function() {
return -Math.log(1 - Math.random()) / lambda;
};
}
function linear(t) {
return +t;
}
function quadIn(t) {
return t * t;
}
function quadOut(t) {
return t * (2 - t);
}
function quadInOut(t) {
return ((t *= 2) <= 1 ? t * t : --t * (2 - t) + 1) / 2;
}
function cubicIn(t) {
return t * t * t;
}
function cubicOut(t) {
return --t * t * t + 1;
}
function easeCubicInOut(t) {
return ((t *= 2) <= 1 ? t * t * t : (t -= 2) * t * t + 2) / 2;
}
var exponent = 3;
var polyIn = (function custom(e) {
e = +e;
function polyIn(t) {
return Math.pow(t, e);
}
polyIn.exponent = custom;
return polyIn;
})(exponent);
var polyOut = (function custom(e) {
e = +e;
function polyOut(t) {
return 1 - Math.pow(1 - t, e);
}
polyOut.exponent = custom;
return polyOut;
})(exponent);
var polyInOut = (function custom(e) {
e = +e;
function polyInOut(t) {
return ((t *= 2) <= 1 ? Math.pow(t, e) : 2 - Math.pow(2 - t, e)) / 2;
}
polyInOut.exponent = custom;
return polyInOut;
})(exponent);
var pi = Math.PI;
var halfPi = pi / 2;
function sinIn(t) {
return 1 - Math.cos(t * halfPi);
}
function sinOut(t) {
return Math.sin(t * halfPi);
}
function sinInOut(t) {
return (1 - Math.cos(pi * t)) / 2;
}
function expIn(t) {
return Math.pow(2, 10 * t - 10);
}
function expOut(t) {
return 1 - Math.pow(2, -10 * t);
}
function expInOut(t) {
return ((t *= 2) <= 1 ? Math.pow(2, 10 * t - 10) : 2 - Math.pow(2, 10 - 10 * t)) / 2;
}
function circleIn(t) {
return 1 - Math.sqrt(1 - t * t);
}
function circleOut(t) {
return Math.sqrt(1 - --t * t);
}
function circleInOut(t) {
return ((t *= 2) <= 1 ? 1 - Math.sqrt(1 - t * t) : Math.sqrt(1 - (t -= 2) * t) + 1) / 2;
}
var b1 = 4 / 11;
var b2 = 6 / 11;
var b3 = 8 / 11;
var b4 = 3 / 4;
var b5 = 9 / 11;
var b6 = 10 / 11;
var b7 = 15 / 16;
var b8 = 21 / 22;
var b9 = 63 / 64;
var b0 = 1 / b1 / b1;
function bounceIn(t) {
return 1 - bounceOut(1 - t);
}
function bounceOut(t) {
return (t = +t) < b1 ? b0 * t * t : t < b3 ? b0 * (t -= b2) * t + b4 : t < b6 ? b0 * (t -= b5) * t + b7 : b0 * (t -= b8) * t + b9;
}
function bounceInOut(t) {
return ((t *= 2) <= 1 ? 1 - bounceOut(1 - t) : bounceOut(t - 1) + 1) / 2;
}
var overshoot = 1.70158;
var backIn = (function custom(s) {
s = +s;
function backIn(t) {
return t * t * ((s + 1) * t - s);
}
backIn.overshoot = custom;
return backIn;
})(overshoot);
var backOut = (function custom(s) {
s = +s;
function backOut(t) {
return --t * t * ((s + 1) * t + s) + 1;
}
backOut.overshoot = custom;
return backOut;
})(overshoot);
var backInOut = (function custom(s) {
s = +s;
function backInOut(t) {
return ((t *= 2) < 1 ? t * t * ((s + 1) * t - s) : (t -= 2) * t * ((s + 1) * t + s) + 2) / 2;
}
backInOut.overshoot = custom;
return backInOut;
})(overshoot);
var tau = 2 * Math.PI;
var amplitude = 1;
var period = 0.3;
var elasticIn = (function custom(a, p) {
var s = Math.asin(1 / (a = Math.max(1, a))) * (p /= tau);
function elasticIn(t) {
return a * Math.pow(2, 10 * --t) * Math.sin((s - t) / p);
}
elasticIn.amplitude = function(a) { return custom(a, p * tau); };
elasticIn.period = function(p) { return custom(a, p); };
return elasticIn;
})(amplitude, period);
var elasticOut = (function custom(a, p) {
var s = Math.asin(1 / (a = Math.max(1, a))) * (p /= tau);
function elasticOut(t) {
return 1 - a * Math.pow(2, -10 * (t = +t)) * Math.sin((t + s) / p);
}
elasticOut.amplitude = function(a) { return custom(a, p * tau); };
elasticOut.period = function(p) { return custom(a, p); };
return elasticOut;
})(amplitude, period);
var elasticInOut = (function custom(a, p) {
var s = Math.asin(1 / (a = Math.max(1, a))) * (p /= tau);
function elasticInOut(t) {
return ((t = t * 2 - 1) < 0
? a * Math.pow(2, 10 * t) * Math.sin((s - t) / p)
: 2 - a * Math.pow(2, -10 * t) * Math.sin((s + t) / p)) / 2;
}
elasticInOut.amplitude = function(a) { return custom(a, p * tau); };
elasticInOut.period = function(p) { return custom(a, p); };
return elasticInOut;
})(amplitude, period);
function area(polygon) {
var i = -1,
n = polygon.length,
a,
b = polygon[n - 1],
area = 0;
while (++i < n) {
a = b;
b = polygon[i];
area += a[1] * b[0] - a[0] * b[1];
}
return area / 2;
}
function centroid(polygon) {
var i = -1,
n = polygon.length,
x = 0,
y = 0,
a,
b = polygon[n - 1],
c,
k = 0;
while (++i < n) {
a = b;
b = polygon[i];
k += c = a[0] * b[1] - b[0] * a[1];
x += (a[0] + b[0]) * c;
y += (a[1] + b[1]) * c;
}
return k *= 3, [x / k, y / k];
}
// Returns the 2D cross product of AB and AC vectors, i.e., the z-component of
// the 3D cross product in a quadrant I Cartesian coordinate system (+x is
// right, +y is up). Returns a positive value if ABC is counter-clockwise,
// negative if clockwise, and zero if the points are collinear.
function cross(a, b, c) {
return (b[0] - a[0]) * (c[1] - a[1]) - (b[1] - a[1]) * (c[0] - a[0]);
}
function lexicographicOrder(a, b) {
return a[0] - b[0] || a[1] - b[1];
}
// Computes the upper convex hull per the monotone chain algorithm.
// Assumes points.length >= 3, is sorted by x, unique in y.
// Returns an array of indices into points in left-to-right order.
function computeUpperHullIndexes(points) {
var n = points.length,
indexes = [0, 1],
size = 2;
for (var i = 2; i < n; ++i) {
while (size > 1 && cross(points[indexes[size - 2]], points[indexes[size - 1]], points[i]) <= 0) --size;
indexes[size++] = i;
}
return indexes.slice(0, size); // remove popped points
}
function hull(points) {
if ((n = points.length) < 3) return null;
var i,
n,
sortedPoints = new Array(n),
flippedPoints = new Array(n);
for (i = 0; i < n; ++i) sortedPoints[i] = [+points[i][0], +points[i][1], i];
sortedPoints.sort(lexicographicOrder);
for (i = 0; i < n; ++i) flippedPoints[i] = [sortedPoints[i][0], -sortedPoints[i][1]];
var upperIndexes = computeUpperHullIndexes(sortedPoints),
lowerIndexes = computeUpperHullIndexes(flippedPoints);
// Construct the hull polygon, removing possible duplicate endpoints.
var skipLeft = lowerIndexes[0] === upperIndexes[0],
skipRight = lowerIndexes[lowerIndexes.length - 1] === upperIndexes[upperIndexes.length - 1],
hull = [];
// Add upper hull in right-to-l order.
// Then add lower hull in left-to-right order.
for (i = upperIndexes.length - 1; i >= 0; --i) hull.push(points[sortedPoints[upperIndexes[i]][2]]);
for (i = +skipLeft; i < lowerIndexes.length - skipRight; ++i) hull.push(points[sortedPoints[lowerIndexes[i]][2]]);
return hull;
}
function contains(polygon, point) {
var n = polygon.length,
p = polygon[n - 1],
x = point[0], y = point[1],
x0 = p[0], y0 = p[1],
x1, y1,
inside = false;
for (var i = 0; i < n; ++i) {
p = polygon[i], x1 = p[0], y1 = p[1];
if (((y1 > y) !== (y0 > y)) && (x < (x0 - x1) * (y - y1) / (y0 - y1) + x1)) inside = !inside;
x0 = x1, y0 = y1;
}
return inside;
}
function length$1(polygon) {
var i = -1,
n = polygon.length,
b = polygon[n - 1],
xa,
ya,
xb = b[0],
yb = b[1],
perimeter = 0;
while (++i < n) {
xa = xb;
ya = yb;
b = polygon[i];
xb = b[0];
yb = b[1];
xa -= xb;
ya -= yb;
perimeter += Math.sqrt(xa * xa + ya * ya);
}
return perimeter;
}
var pi$1 = Math.PI;
var tau$1 = 2 * pi$1;
var epsilon = 1e-6;
var tauEpsilon = tau$1 - epsilon;
function Path() {
this._x0 = this._y0 = // start of current subpath
this._x1 = this._y1 = null; // end of current subpath
this._ = [];
}
function path() {
return new Path;
}
Path.prototype = path.prototype = {
constructor: Path,
moveTo: function(x, y) {
this._.push("M", this._x0 = this._x1 = +x, ",", this._y0 = this._y1 = +y);
},
closePath: function() {
if (this._x1 !== null) {
this._x1 = this._x0, this._y1 = this._y0;
this._.push("Z");
}
},
lineTo: function(x, y) {
this._.push("L", this._x1 = +x, ",", this._y1 = +y);
},
quadraticCurveTo: function(x1, y1, x, y) {
this._.push("Q", +x1, ",", +y1, ",", this._x1 = +x, ",", this._y1 = +y);
},
bezierCurveTo: function(x1, y1, x2, y2, x, y) {
this._.push("C", +x1, ",", +y1, ",", +x2, ",", +y2, ",", this._x1 = +x, ",", this._y1 = +y);
},
arcTo: function(x1, y1, x2, y2, r) {
x1 = +x1, y1 = +y1, x2 = +x2, y2 = +y2, r = +r;
var x0 = this._x1,
y0 = this._y1,
x21 = x2 - x1,
y21 = y2 - y1,
x01 = x0 - x1,
y01 = y0 - y1,
l01_2 = x01 * x01 + y01 * y01;
// Is the radius negative? Error.
if (r < 0) throw new Error("negative radius: " + r);
// Is this path empty? Move to (x1,y1).
if (this._x1 === null) {
this._.push(
"M", this._x1 = x1, ",", this._y1 = y1
);
}
// Or, is (x1,y1) coincident with (x0,y0)? Do nothing.
else if (!(l01_2 > epsilon));
// Or, are (x0,y0), (x1,y1) and (x2,y2) collinear?
// Equivalently, is (x1,y1) coincident with (x2,y2)?
// Or, is the radius zero? Line to (x1,y1).
else if (!(Math.abs(y01 * x21 - y21 * x01) > epsilon) || !r) {
this._.push(
"L", this._x1 = x1, ",", this._y1 = y1
);
}
// Otherwise, draw an arc!
else {
var x20 = x2 - x0,
y20 = y2 - y0,
l21_2 = x21 * x21 + y21 * y21,
l20_2 = x20 * x20 + y20 * y20,
l21 = Math.sqrt(l21_2),
l01 = Math.sqrt(l01_2),
l = r * Math.tan((pi$1 - Math.acos((l21_2 + l01_2 - l20_2) / (2 * l21 * l01))) / 2),
t01 = l / l01,
t21 = l / l21;
// If the start tangent is not coincident with (x0,y0), line to.
if (Math.abs(t01 - 1) > epsilon) {
this._.push(
"L", x1 + t01 * x01, ",", y1 + t01 * y01
);
}
this._.push(
"A", r, ",", r, ",0,0,", +(y01 * x20 > x01 * y20), ",", this._x1 = x1 + t21 * x21, ",", this._y1 = y1 + t21 * y21
);
}
},
arc: function(x, y, r, a0, a1, ccw) {
x = +x, y = +y, r = +r;
var dx = r * Math.cos(a0),
dy = r * Math.sin(a0),
x0 = x + dx,
y0 = y + dy,
cw = 1 ^ ccw,
da = ccw ? a0 - a1 : a1 - a0;
// Is the radius negative? Error.
if (r < 0) throw new Error("negative radius: " + r);
// Is this path empty? Move to (x0,y0).
if (this._x1 === null) {
this._.push(
"M", x0, ",", y0
);
}
// Or, is (x0,y0) not coincident with the previous point? Line to (x0,y0).
else if (Math.abs(this._x1 - x0) > epsilon || Math.abs(this._y1 - y0) > epsilon) {
this._.push(
"L", x0, ",", y0
);
}
// Is this arc empty? We’re done.
if (!r) return;
// Is this a complete circle? Draw two arcs to complete the circle.
if (da > tauEpsilon) {
this._.push(
"A", r, ",", r, ",0,1,", cw, ",", x - dx, ",", y - dy,
"A", r, ",", r, ",0,1,", cw, ",", this._x1 = x0, ",", this._y1 = y0
);
}
// Otherwise, draw an arc!
else {
if (da < 0) da = da % tau$1 + tau$1;
this._.push(
"A", r, ",", r, ",0,", +(da >= pi$1), ",", cw, ",", this._x1 = x + r * Math.cos(a1), ",", this._y1 = y + r * Math.sin(a1)
);
}
},
rect: function(x, y, w, h) {
this._.push("M", this._x0 = this._x1 = +x, ",", this._y0 = this._y1 = +y, "h", +w, "v", +h, "h", -w, "Z");
},
toString: function() {
return this._.join("");
}
};
function tree_add(d) {
var x = +this._x.call(null, d),
y = +this._y.call(null, d);
return add(this.cover(x, y), x, y, d);
}
function add(tree, x, y, d) {
if (isNaN(x) || isNaN(y)) return tree; // ignore invalid points
var parent,
node = tree._root,
leaf = {data: d},
x0 = tree._x0,
y0 = tree._y0,
x1 = tree._x1,
y1 = tree._y1,
xm,
ym,
xp,
yp,
right,
bottom,
i,
j;
// If the tree is empty, initialize the root as a leaf.
if (!node) return tree._root = leaf, tree;
// Find the existing leaf for the new point, or add it.
while (node.length) {
if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm; else x1 = xm;
if (bottom = y >= (ym = (y0 + y1) / 2)) y0 = ym; else y1 = ym;
if (parent = node, !(node = node[i = bottom << 1 | right])) return parent[i] = leaf, tree;
}
// Is the new point is exactly coincident with the existing point?
xp = +tree._x.call(null, node.data);
yp = +tree._y.call(null, node.data);
if (x === xp && y === yp) return leaf.next = node, parent ? parent[i] = leaf : tree._root = leaf, tree;
// Otherwise, split the leaf node until the old and new point are separated.
do {
parent = parent ? parent[i] = new Array(4) : tree._root = new Array(4);
if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm; else x1 = xm;
if (bottom = y >= (ym = (y0 + y1) / 2)) y0 = ym; else y1 = ym;
} while ((i = bottom << 1 | right) === (j = (yp >= ym) << 1 | (xp >= xm)));
return parent[j] = node, parent[i] = leaf, tree;
}
function addAll(data) {
var d, i, n = data.length,
x,
y,
xz = new Array(n),
yz = new Array(n),
x0 = Infinity,
y0 = Infinity,
x1 = -Infinity,
y1 = -Infinity;
// Compute the points and their extent.
for (i = 0; i < n; ++i) {
if (isNaN(x = +this._x.call(null, d = data[i])) || isNaN(y = +this._y.call(null, d))) continue;
xz[i] = x;
yz[i] = y;
if (x < x0) x0 = x;
if (x > x1) x1 = x;
if (y < y0) y0 = y;
if (y > y1) y1 = y;
}
// If there were no (valid) points, inherit the existing extent.
if (x1 < x0) x0 = this._x0, x1 = this._x1;
if (y1 < y0) y0 = this._y0, y1 = this._y1;
// Expand the tree to cover the new points.
this.cover(x0, y0).cover(x1, y1);
// Add the new points.
for (i = 0; i < n; ++i) {
add(this, xz[i], yz[i], data[i]);
}
return this;
}
function tree_cover(x, y) {
if (isNaN(x = +x) || isNaN(y = +y)) return this; // ignore invalid points
var x0 = this._x0,
y0 = this._y0,
x1 = this._x1,
y1 = this._y1;
// If the quadtree has no extent, initialize them.
// Integer extent are necessary so that if we later double the extent,
// the existing quadrant boundaries don’t change due to floating point error!
if (isNaN(x0)) {
x1 = (x0 = Math.floor(x)) + 1;
y1 = (y0 = Math.floor(y)) + 1;
}
// Otherwise, double repeatedly to cover.
else if (x0 > x || x > x1 || y0 > y || y > y1) {
var z = x1 - x0,
node = this._root,
parent,
i;
switch (i = (y < (y0 + y1) / 2) << 1 | (x < (x0 + x1) / 2)) {
case 0: {
do parent = new Array(4), parent[i] = node, node = parent;
while (z *= 2, x1 = x0 + z, y1 = y0 + z, x > x1 || y > y1);
break;
}
case 1: {
do parent = new Array(4), parent[i] = node, node = parent;
while (z *= 2, x0 = x1 - z, y1 = y0 + z, x0 > x || y > y1);
break;
}
case 2: {
do parent = new Array(4), parent[i] = node, node = parent;
while (z *= 2, x1 = x0 + z, y0 = y1 - z, x > x1 || y0 > y);
break;
}
case 3: {
do parent = new Array(4), parent[i] = node, node = parent;
while (z *= 2, x0 = x1 - z, y0 = y1 - z, x0 > x || y0 > y);
break;
}
}
if (this._root && this._root.length) this._root = node;
}
// If the quadtree covers the point already, just return.
else return this;
this._x0 = x0;
this._y0 = y0;
this._x1 = x1;
this._y1 = y1;
return this;
}
function tree_data() {
var data = [];
this.visit(function(node) {
if (!node.length) do data.push(node.data); while (node = node.next)
});
return data;
}
function tree_extent(_) {
return arguments.length
? this.cover(+_[0][0], +_[0][1]).cover(+_[1][0], +_[1][1])
: isNaN(this._x0) ? undefined : [[this._x0, this._y0], [this._x1, this._y1]];
}
function Quad(node, x0, y0, x1, y1) {
this.node = node;
this.x0 = x0;
this.y0 = y0;
this.x1 = x1;
this.y1 = y1;
}
function tree_find(x, y, radius) {
var data,
x0 = this._x0,
y0 = this._y0,
x1,
y1,
x2,
y2,
x3 = this._x1,
y3 = this._y1,
quads = [],
node = this._root,
q,
i;
if (node) quads.push(new Quad(node, x0, y0, x3, y3));
if (radius == null) radius = Infinity;
else {
x0 = x - radius, y0 = y - radius;
x3 = x + radius, y3 = y + radius;
radius *= radius;
}
while (q = quads.pop()) {
// Stop searching if this quadrant can’t contain a closer node.
if (!(node = q.node)
|| (x1 = q.x0) > x3
|| (y1 = q.y0) > y3
|| (x2 = q.x1) < x0
|| (y2 = q.y1) < y0) continue;
// Bisect the current quadrant.
if (node.length) {
var xm = (x1 + x2) / 2,
ym = (y1 + y2) / 2;
quads.push(
new Quad(node[3], xm, ym, x2, y2),
new Quad(node[2], x1, ym, xm, y2),
new Quad(node[1], xm, y1, x2, ym),
new Quad(node[0], x1, y1, xm, ym)
);
// Visit the closest quadrant first.
if (i = (y >= ym) << 1 | (x >= xm)) {
q = quads[quads.length - 1];
quads[quads.length - 1] = quads[quads.length - 1 - i];
quads[quads.length - 1 - i] = q;
}
}
// Visit this point. (Visiting coincident points isn’t necessary!)
else {
var dx = x - +this._x.call(null, node.data),
dy = y - +this._y.call(null, node.data),
d2 = dx * dx + dy * dy;
if (d2 < radius) {
var d = Math.sqrt(radius = d2);
x0 = x - d, y0 = y - d;
x3 = x + d, y3 = y + d;
data = node.data;
}
}
}
return data;
}
function tree_remove(d) {
if (isNaN(x = +this._x.call(null, d)) || isNaN(y = +this._y.call(null, d))) return this; // ignore invalid points
var parent,
node = this._root,
retainer,
previous,
next,
x0 = this._x0,
y0 = this._y0,
x1 = this._x1,
y1 = this._y1,
x,
y,
xm,
ym,
right,
bottom,
i,
j;
// If the tree is empty, initialize the root as a leaf.
if (!node) return this;
// Find the leaf node for the point.
// While descending, also retain the deepest parent with a non-removed sibling.
if (node.length) while (true) {
if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm; else x1 = xm;
if (bottom = y >= (ym = (y0 + y1) / 2)) y0 = ym; else y1 = ym;
if (!(parent = node, node = node[i = bottom << 1 | right])) return this;
if (!node.length) break;
if (parent[(i + 1) & 3] || parent[(i + 2) & 3] || parent[(i + 3) & 3]) retainer = parent, j = i;
}
// Find the point to remove.
while (node.data !== d) if (!(previous = node, node = node.next)) return this;
if (next = node.next) delete node.next;
// If there are multiple coincident points, remove just the point.
if (previous) return (next ? previous.next = next : delete previous.next), this;
// If this is the root point, remove it.
if (!parent) return this._root = next, this;
// Remove this leaf.
next ? parent[i] = next : delete parent[i];
// If the parent now contains exactly one leaf, collapse superfluous parents.
if ((node = parent[0] || parent[1] || parent[2] || parent[3])
&& node === (parent[3] || parent[2] || parent[1] || parent[0])
&& !node.length) {
if (retainer) retainer[j] = node;
else this._root = node;
}
return this;
}
function removeAll(data) {
for (var i = 0, n = data.length; i < n; ++i) this.remove(data[i]);
return this;
}
function tree_root() {
return this._root;
}
function tree_size() {
var size = 0;
this.visit(function(node) {
if (!node.length) do ++size; while (node = node.next)
});
return size;
}
function tree_visit(callback) {
var quads = [], q, node = this._root, child, x0, y0, x1, y1;
if (node) quads.push(new Quad(node, this._x0, this._y0, this._x1, this._y1));
while (q = quads.pop()) {
if (!callback(node = q.node, x0 = q.x0, y0 = q.y0, x1 = q.x1, y1 = q.y1) && node.length) {
var xm = (x0 + x1) / 2, ym = (y0 + y1) / 2;
if (child = node[3]) quads.push(new Quad(child, xm, ym, x1, y1));
if (child = node[2]) quads.push(new Quad(child, x0, ym, xm, y1));
if (child = node[1]) quads.push(new Quad(child, xm, y0, x1, ym));
if (child = node[0]) quads.push(new Quad(child, x0, y0, xm, ym));
}
}
return this;
}
function tree_visitAfter(callback) {
var quads = [], next = [], q;
if (this._root) quads.push(new Quad(this._root, this._x0, this._y0, this._x1, this._y1));
while (q = quads.pop()) {
var node = q.node;
if (node.length) {
var child, x0 = q.x0, y0 = q.y0, x1 = q.x1, y1 = q.y1, xm = (x0 + x1) / 2, ym = (y0 + y1) / 2;
if (child = node[0]) quads.push(new Quad(child, x0, y0, xm, ym));
if (child = node[1]) quads.push(new Quad(child, xm, y0, x1, ym));
if (child = node[2]) quads.push(new Quad(child, x0, ym, xm, y1));
if (child = node[3]) quads.push(new Quad(child, xm, ym, x1, y1));
}
next.push(q);
}
while (q = next.pop()) {
callback(q.node, q.x0, q.y0, q.x1, q.y1);
}
return this;
}
function defaultX(d) {
return d[0];
}
function tree_x(_) {
return arguments.length ? (this._x = _, this) : this._x;
}
function defaultY(d) {
return d[1];
}
function tree_y(_) {
return arguments.length ? (this._y = _, this) : this._y;
}
function quadtree(nodes, x, y) {
var tree = new Quadtree(x == null ? defaultX : x, y == null ? defaultY : y, NaN, NaN, NaN, NaN);
return nodes == null ? tree : tree.addAll(nodes);
}
function Quadtree(x, y, x0, y0, x1, y1) {
this._x = x;
this._y = y;
this._x0 = x0;
this._y0 = y0;
this._x1 = x1;
this._y1 = y1;
this._root = undefined;
}
function leaf_copy(leaf) {
var copy = {data: leaf.data}, next = copy;
while (leaf = leaf.next) next = next.next = {data: leaf.data};
return copy;
}
var treeProto = quadtree.prototype = Quadtree.prototype;
treeProto.copy = function() {
var copy = new Quadtree(this._x, this._y, this._x0, this._y0, this._x1, this._y1),
node = this._root,
nodes,
child;
if (!node) return copy;
if (!node.length) return copy._root = leaf_copy(node), copy;
nodes = [{source: node, target: copy._root = new Array(4)}];
while (node = nodes.pop()) {
for (var i = 0; i < 4; ++i) {
if (child = node.source[i]) {
if (child.length) nodes.push({source: child, target: node.target[i] = new Array(4)});
else node.target[i] = leaf_copy(child);
}
}
}
return copy;
};
treeProto.add = tree_add;
treeProto.addAll = addAll;
treeProto.cover = tree_cover;
treeProto.data = tree_data;
treeProto.extent = tree_extent;
treeProto.find = tree_find;
treeProto.remove = tree_remove;
treeProto.removeAll = removeAll;
treeProto.root = tree_root;
treeProto.size = tree_size;
treeProto.visit = tree_visit;
treeProto.visitAfter = tree_visitAfter;
treeProto.x = tree_x;
treeProto.y = tree_y;
var slice$1 = [].slice;
var noabort = {};
function Queue(size) {
if (!(size >= 1)) throw new Error;
this._size = size;
this._call =
this._error = null;
this._tasks = [];
this._data = [];
this._waiting =
this._active =
this._ended =
this._start = 0; // inside a synchronous task callback?
}
Queue.prototype = queue.prototype = {
constructor: Queue,
defer: function(callback) {
if (typeof callback !== "function" || this._call) throw new Error;
if (this._error != null) return this;
var t = slice$1.call(arguments, 1);
t.push(callback);
++this._waiting, this._tasks.push(t);
poke(this);
return this;
},
abort: function() {
if (this._error == null) abort(this, new Error("abort"));
return this;
},
await: function(callback) {
if (typeof callback !== "function" || this._call) throw new Error;
this._call = function(error, results) { callback.apply(null, [error].concat(results)); };
maybeNotify(this);
return this;
},
awaitAll: function(callback) {
if (typeof callback !== "function" || this._call) throw new Error;
this._call = callback;
maybeNotify(this);
return this;
}
};
function poke(q) {
if (!q._start) try { start(q); } // let the current task complete
catch (e) { if (q._tasks[q._ended + q._active - 1]) abort(q, e); } // task errored synchronously
}
function start(q) {
while (q._start = q._waiting && q._active < q._size) {
var i = q._ended + q._active,
t = q._tasks[i],
j = t.length - 1,
c = t[j];
t[j] = end(q, i);
--q._waiting, ++q._active;
t = c.apply(null, t);
if (!q._tasks[i]) continue; // task finished synchronously
q._tasks[i] = t || noabort;
}
}
function end(q, i) {
return function(e, r) {
if (!q._tasks[i]) return; // ignore multiple callbacks
--q._active, ++q._ended;
q._tasks[i] = null;
if (q._error != null) return; // ignore secondary errors
if (e != null) {
abort(q, e);
} else {
q._data[i] = r;
if (q._waiting) poke(q);
else maybeNotify(q);
}
};
}
function abort(q, e) {
var i = q._tasks.length, t;
q._error = e; // ignore active callbacks
q._data = undefined; // allow gc
q._waiting = NaN; // prevent starting
while (--i >= 0) {
if (t = q._tasks[i]) {
q._tasks[i] = null;
if (t.abort) try { t.abort(); }
catch (e) { /* ignore */ }
}
}
q._active = NaN; // allow notification
maybeNotify(q);
}
function maybeNotify(q) {
if (!q._active && q._call) q._call(q._error, q._data);
}
function queue(concurrency) {
return new Queue(arguments.length ? +concurrency : Infinity);
}
function constant$1(x) {
return function constant() {
return x;
};
}
var epsilon$1 = 1e-12;
var pi$2 = Math.PI;
var halfPi$1 = pi$2 / 2;
var tau$2 = 2 * pi$2;
function arcInnerRadius(d) {
return d.innerRadius;
}
function arcOuterRadius(d) {
return d.outerRadius;
}
function arcStartAngle(d) {
return d.startAngle;
}
function arcEndAngle(d) {
return d.endAngle;
}
function arcPadAngle(d) {
return d && d.padAngle; // Note: optional!
}
function asin(x) {
return x >= 1 ? halfPi$1 : x <= -1 ? -halfPi$1 : Math.asin(x);
}
function intersect(x0, y0, x1, y1, x2, y2, x3, y3) {
var x10 = x1 - x0, y10 = y1 - y0,
x32 = x3 - x2, y32 = y3 - y2,
t = (x32 * (y0 - y2) - y32 * (x0 - x2)) / (y32 * x10 - x32 * y10);
return [x0 + t * x10, y0 + t * y10];
}
// Compute perpendicular offset line of length rc.
// http://mathworld.wolfram.com/Circle-LineIntersection.html
function cornerTangents(x0, y0, x1, y1, r1, rc, cw) {
var x01 = x0 - x1,
y01 = y0 - y1,
lo = (cw ? rc : -rc) / Math.sqrt(x01 * x01 + y01 * y01),
ox = lo * y01,
oy = -lo * x01,
x11 = x0 + ox,
y11 = y0 + oy,
x10 = x1 + ox,
y10 = y1 + oy,
x00 = (x11 + x10) / 2,
y00 = (y11 + y10) / 2,
dx = x10 - x11,
dy = y10 - y11,
d2 = dx * dx + dy * dy,
r = r1 - rc,
D = x11 * y10 - x10 * y11,
d = (dy < 0 ? -1 : 1) * Math.sqrt(Math.max(0, r * r * d2 - D * D)),
cx0 = (D * dy - dx * d) / d2,
cy0 = (-D * dx - dy * d) / d2,
cx1 = (D * dy + dx * d) / d2,
cy1 = (-D * dx + dy * d) / d2,
dx0 = cx0 - x00,
dy0 = cy0 - y00,
dx1 = cx1 - x00,
dy1 = cy1 - y00;
// Pick the closer of the two intersection points.
// TODO Is there a faster way to determine which intersection to use?
if (dx0 * dx0 + dy0 * dy0 > dx1 * dx1 + dy1 * dy1) cx0 = cx1, cy0 = cy1;
return {
cx: cx0,
cy: cy0,
x01: -ox,
y01: -oy,
x11: cx0 * (r1 / r - 1),
y11: cy0 * (r1 / r - 1)
};
}
function arc() {
var innerRadius = arcInnerRadius,
outerRadius = arcOuterRadius,
cornerRadius = constant$1(0),
padRadius = null,
startAngle = arcStartAngle,
endAngle = arcEndAngle,
padAngle = arcPadAngle,
context = null;
function arc() {
var buffer,
r,
r0 = +innerRadius.apply(this, arguments),
r1 = +outerRadius.apply(this, arguments),
a0 = startAngle.apply(this, arguments) - halfPi$1,
a1 = endAngle.apply(this, arguments) - halfPi$1,
da = Math.abs(a1 - a0),
cw = a1 > a0;
if (!context) context = buffer = path();
// Ensure that the outer radius is always larger than the inner radius.
if (r1 < r0) r = r1, r1 = r0, r0 = r;
// Is it a point?
if (!(r1 > epsilon$1)) context.moveTo(0, 0);
// Or is it a circle or annulus?
else if (da > tau$2 - epsilon$1) {
context.moveTo(r1 * Math.cos(a0), r1 * Math.sin(a0));
context.arc(0, 0, r1, a0, a1, !cw);
if (r0 > epsilon$1) {
context.moveTo(r0 * Math.cos(a1), r0 * Math.sin(a1));
context.arc(0, 0, r0, a1, a0, cw);
}
}
// Or is it a circular or annular sector?
else {
var a01 = a0,
a11 = a1,
a00 = a0,
a10 = a1,
da0 = da,
da1 = da,
ap = padAngle.apply(this, arguments) / 2,
rp = (ap > epsilon$1) && (padRadius ? +padRadius.apply(this, arguments) : Math.sqrt(r0 * r0 + r1 * r1)),
rc = Math.min(Math.abs(r1 - r0) / 2, +cornerRadius.apply(this, arguments)),
rc0 = rc,
rc1 = rc,
t0,
t1;
// Apply padding? Note that since r1 ≥ r0, da1 ≥ da0.
if (rp > epsilon$1) {
var p0 = asin(rp / r0 * Math.sin(ap)),
p1 = asin(rp / r1 * Math.sin(ap));
if ((da0 -= p0 * 2) > epsilon$1) p0 *= (cw ? 1 : -1), a00 += p0, a10 -= p0;
else da0 = 0, a00 = a10 = (a0 + a1) / 2;
if ((da1 -= p1 * 2) > epsilon$1) p1 *= (cw ? 1 : -1), a01 += p1, a11 -= p1;
else da1 = 0, a01 = a11 = (a0 + a1) / 2;
}
var x01 = r1 * Math.cos(a01),
y01 = r1 * Math.sin(a01),
x10 = r0 * Math.cos(a10),
y10 = r0 * Math.sin(a10);
// Apply rounded corners?
if (rc > epsilon$1) {
var x11 = r1 * Math.cos(a11),
y11 = r1 * Math.sin(a11),
x00 = r0 * Math.cos(a00),
y00 = r0 * Math.sin(a00);
// Restrict the corner radius according to the sector angle.
if (da < pi$2) {
var oc = da0 > epsilon$1 ? intersect(x01, y01, x00, y00, x11, y11, x10, y10) : [x10, y10],
ax = x01 - oc[0],
ay = y01 - oc[1],
bx = x11 - oc[0],
by = y11 - oc[1],
kc = 1 / Math.sin(Math.acos((ax * bx + ay * by) / (Math.sqrt(ax * ax + ay * ay) * Math.sqrt(bx * bx + by * by))) / 2),
lc = Math.sqrt(oc[0] * oc[0] + oc[1] * oc[1]);
rc0 = Math.min(rc, (r0 - lc) / (kc - 1));
rc1 = Math.min(rc, (r1 - lc) / (kc + 1));
}
}
// Is the sector collapsed to a line?
if (!(da1 > epsilon$1)) context.moveTo(x01, y01);
// Does the sector’s outer ring have rounded corners?
else if (rc1 > epsilon$1) {
t0 = cornerTangents(x00, y00, x01, y01, r1, rc1, cw);
t1 = cornerTangents(x11, y11, x10, y10, r1, rc1, cw);
context.moveTo(t0.cx + t0.x01, t0.cy + t0.y01);
// Have the corners merged?
if (rc1 < rc) context.arc(t0.cx, t0.cy, rc1, Math.atan2(t0.y01, t0.x01), Math.atan2(t1.y01, t1.x01), !cw);
// Otherwise, draw the two corners and the ring.
else {
context.arc(t0.cx, t0.cy, rc1, Math.atan2(t0.y01, t0.x01), Math.atan2(t0.y11, t0.x11), !cw);
context.arc(0, 0, r1, Math.atan2(t0.cy + t0.y11, t0.cx + t0.x11), Math.atan2(t1.cy + t1.y11, t1.cx + t1.x11), !cw);
context.arc(t1.cx, t1.cy, rc1, Math.atan2(t1.y11, t1.x11), Math.atan2(t1.y01, t1.x01), !cw);
}
}
// Or is the outer ring just a circular arc?
else context.moveTo(x01, y01), context.arc(0, 0, r1, a01, a11, !cw);
// Is there no inner ring, and it’s a circular sector?
// Or perhaps it’s an annular sector collapsed due to padding?
if (!(r0 > epsilon$1) || !(da0 > epsilon$1)) context.lineTo(x10, y10);
// Does the sector’s inner ring (or point) have rounded corners?
else if (rc0 > epsilon$1) {
t0 = cornerTangents(x10, y10, x11, y11, r0, -rc0, cw);
t1 = cornerTangents(x01, y01, x00, y00, r0, -rc0, cw);
context.lineTo(t0.cx + t0.x01, t0.cy + t0.y01);
// Have the corners merged?
if (rc0 < rc) context.arc(t0.cx, t0.cy, rc0, Math.atan2(t0.y01, t0.x01), Math.atan2(t1.y01, t1.x01), !cw);
// Otherwise, draw the two corners and the ring.
else {
context.arc(t0.cx, t0.cy, rc0, Math.atan2(t0.y01, t0.x01), Math.atan2(t0.y11, t0.x11), !cw);
context.arc(0, 0, r0, Math.atan2(t0.cy + t0.y11, t0.cx + t0.x11), Math.atan2(t1.cy + t1.y11, t1.cx + t1.x11), cw);
context.arc(t1.cx, t1.cy, rc0, Math.atan2(t1.y11, t1.x11), Math.atan2(t1.y01, t1.x01), !cw);
}
}
// Or is the inner ring just a circular arc?
else context.arc(0, 0, r0, a10, a00, cw);
}
context.closePath();
if (buffer) return context = null, buffer + "" || null;
}
arc.centroid = function() {
var r = (+innerRadius.apply(this, arguments) + +outerRadius.apply(this, arguments)) / 2,
a = (+startAngle.apply(this, arguments) + +endAngle.apply(this, arguments)) / 2 - pi$2 / 2;
return [Math.cos(a) * r, Math.sin(a) * r];
};
arc.innerRadius = function(_) {
return arguments.length ? (innerRadius = typeof _ === "function" ? _ : constant$1(+_), arc) : innerRadius;
};
arc.outerRadius = function(_) {
return arguments.length ? (outerRadius = typeof _ === "function" ? _ : constant$1(+_), arc) : outerRadius;
};
arc.cornerRadius = function(_) {
return arguments.length ? (cornerRadius = typeof _ === "function" ? _ : constant$1(+_), arc) : cornerRadius;
};
arc.padRadius = function(_) {
return arguments.length ? (padRadius = _ == null ? null : typeof _ === "function" ? _ : constant$1(+_), arc) : padRadius;
};
arc.startAngle = function(_) {
return arguments.length ? (startAngle = typeof _ === "function" ? _ : constant$1(+_), arc) : startAngle;
};
arc.endAngle = function(_) {
return arguments.length ? (endAngle = typeof _ === "function" ? _ : constant$1(+_), arc) : endAngle;
};
arc.padAngle = function(_) {
return arguments.length ? (padAngle = typeof _ === "function" ? _ : constant$1(+_), arc) : padAngle;
};
arc.context = function(_) {
return arguments.length ? ((context = _ == null ? null : _), arc) : context;
};
return arc;
}
function Linear(context) {
this._context = context;
}
Linear.prototype = {
areaStart: function() {
this._line = 0;
},
areaEnd: function() {
this._line = NaN;
},
lineStart: function() {
this._point = 0;
},
lineEnd: function() {
if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath();
this._line = 1 - this._line;
},
point: function(x, y) {
x = +x, y = +y;
switch (this._point) {
case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break;
case 1: this._point = 2; // proceed
default: this._context.lineTo(x, y); break;
}
}
};
function curveLinear(context) {
return new Linear(context);
}
function x(p) {
return p[0];
}
function y(p) {
return p[1];
}
function line() {
var x$$ = x,
y$$ = y,
defined = constant$1(true),
context = null,
curve = curveLinear,
output = null;
function line(data) {
var i,
n = data.length,
d,
defined0 = false,
buffer;
if (context == null) output = curve(buffer = path());
for (i = 0; i <= n; ++i) {
if (!(i < n && defined(d = data[i], i, data)) === defined0) {
if (defined0 = !defined0) output.lineStart();
else output.lineEnd();
}
if (defined0) output.point(+x$$(d, i, data), +y$$(d, i, data));
}
if (buffer) return output = null, buffer + "" || null;
}
line.x = function(_) {
return arguments.length ? (x$$ = typeof _ === "function" ? _ : constant$1(+_), line) : x$$;
};
line.y = function(_) {
return arguments.length ? (y$$ = typeof _ === "function" ? _ : constant$1(+_), line) : y$$;
};
line.defined = function(_) {
return arguments.length ? (defined = typeof _ === "function" ? _ : constant$1(!!_), line) : defined;
};
line.curve = function(_) {
return arguments.length ? (curve = _, context != null && (output = curve(context)), line) : curve;
};
line.context = function(_) {
return arguments.length ? (_ == null ? context = output = null : output = curve(context = _), line) : context;
};
return line;
}
function area$1() {
var x0 = x,
x1 = null,
y0 = constant$1(0),
y1 = y,
defined = constant$1(true),
context = null,
curve = curveLinear,
output = null;
function area(data) {
var i,
j,
k,
n = data.length,
d,
defined0 = false,
buffer,
x0z = new Array(n),
y0z = new Array(n);
if (context == null) output = curve(buffer = path());
for (i = 0; i <= n; ++i) {
if (!(i < n && defined(d = data[i], i, data)) === defined0) {
if (defined0 = !defined0) {
j = i;
output.areaStart();
output.lineStart();
} else {
output.lineEnd();
output.lineStart();
for (k = i - 1; k >= j; --k) {
output.point(x0z[k], y0z[k]);
}
output.lineEnd();
output.areaEnd();
}
}
if (defined0) {
x0z[i] = +x0(d, i, data), y0z[i] = +y0(d, i, data);
output.point(x1 ? +x1(d, i, data) : x0z[i], y1 ? +y1(d, i, data) : y0z[i]);
}
}
if (buffer) return output = null, buffer + "" || null;
}
function arealine() {
return line().defined(defined).curve(curve).context(context);
}
area.x = function(_) {
return arguments.length ? (x0 = typeof _ === "function" ? _ : constant$1(+_), x1 = null, area) : x0;
};
area.x0 = function(_) {
return arguments.length ? (x0 = typeof _ === "function" ? _ : constant$1(+_), area) : x0;
};
area.x1 = function(_) {
return arguments.length ? (x1 = _ == null ? null : typeof _ === "function" ? _ : constant$1(+_), area) : x1;
};
area.y = function(_) {
return arguments.length ? (y0 = typeof _ === "function" ? _ : constant$1(+_), y1 = null, area) : y0;
};
area.y0 = function(_) {
return arguments.length ? (y0 = typeof _ === "function" ? _ : constant$1(+_), area) : y0;
};
area.y1 = function(_) {
return arguments.length ? (y1 = _ == null ? null : typeof _ === "function" ? _ : constant$1(+_), area) : y1;
};
area.lineX0 =
area.lineY0 = function() {
return arealine().x(x0).y(y0);
};
area.lineY1 = function() {
return arealine().x(x0).y(y1);
};
area.lineX1 = function() {
return arealine().x(x1).y(y0);
};
area.defined = function(_) {
return arguments.length ? (defined = typeof _ === "function" ? _ : constant$1(!!_), area) : defined;
};
area.curve = function(_) {
return arguments.length ? (curve = _, context != null && (output = curve(context)), area) : curve;
};
area.context = function(_) {
return arguments.length ? (_ == null ? context = output = null : output = curve(context = _), area) : context;
};
return area;
}
function descending$1(a, b) {
return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN;
}
function identity$1(d) {
return d;
}
function pie() {
var value = identity$1,
sortValues = descending$1,
sort = null,
startAngle = constant$1(0),
endAngle = constant$1(tau$2),
padAngle = constant$1(0);
function pie(data) {
var i,
n = data.length,
j,
k,
sum = 0,
index = new Array(n),
arcs = new Array(n),
a0 = +startAngle.apply(this, arguments),
da = Math.min(tau$2, Math.max(-tau$2, endAngle.apply(this, arguments) - a0)),
a1,
p = Math.min(Math.abs(da) / n, padAngle.apply(this, arguments)),
pa = p * (da < 0 ? -1 : 1),
v;
for (i = 0; i < n; ++i) {
if ((v = arcs[index[i] = i] = +value(data[i], i, data)) > 0) {
sum += v;
}
}
// Optionally sort the arcs by previously-computed values or by data.
if (sortValues != null) index.sort(function(i, j) { return sortValues(arcs[i], arcs[j]); });
else if (sort != null) index.sort(function(i, j) { return sort(data[i], data[j]); });
// Compute the arcs! They are stored in the original data's order.
for (i = 0, k = sum ? (da - n * pa) / sum : 0; i < n; ++i, a0 = a1) {
j = index[i], v = arcs[j], a1 = a0 + (v > 0 ? v * k : 0) + pa, arcs[j] = {
data: data[j],
index: i,
value: v,
startAngle: a0,
endAngle: a1,
padAngle: p
};
}
return arcs;
}
pie.value = function(_) {
return arguments.length ? (value = typeof _ === "function" ? _ : constant$1(+_), pie) : value;
};
pie.sortValues = function(_) {
return arguments.length ? (sortValues = _, sort = null, pie) : sortValues;
};
pie.sort = function(_) {
return arguments.length ? (sort = _, sortValues = null, pie) : sort;
};
pie.startAngle = function(_) {
return arguments.length ? (startAngle = typeof _ === "function" ? _ : constant$1(+_), pie) : startAngle;
};
pie.endAngle = function(_) {
return arguments.length ? (endAngle = typeof _ === "function" ? _ : constant$1(+_), pie) : endAngle;
};
pie.padAngle = function(_) {
return arguments.length ? (padAngle = typeof _ === "function" ? _ : constant$1(+_), pie) : padAngle;
};
return pie;
}
var curveRadialLinear = curveRadial(curveLinear);
function Radial(curve) {
this._curve = curve;
}
Radial.prototype = {
areaStart: function() {
this._curve.areaStart();
},
areaEnd: function() {
this._curve.areaEnd();
},
lineStart: function() {
this._curve.lineStart();
},
lineEnd: function() {
this._curve.lineEnd();
},
point: function(a, r) {
this._curve.point(r * Math.sin(a), r * -Math.cos(a));
}
};
function curveRadial(curve) {
function radial(context) {
return new Radial(curve(context));
}
radial._curve = curve;
return radial;
}
function radialLine(l) {
var c = l.curve;
l.angle = l.x, delete l.x;
l.radius = l.y, delete l.y;
l.curve = function(_) {
return arguments.length ? c(curveRadial(_)) : c()._curve;
};
return l;
}
function radialLine$1() {
return radialLine(line().curve(curveRadialLinear));
}
function radialArea() {
var a = area$1().curve(curveRadialLinear),
c = a.curve,
x0 = a.lineX0,
x1 = a.lineX1,
y0 = a.lineY0,
y1 = a.lineY1;
a.angle = a.x, delete a.x;
a.startAngle = a.x0, delete a.x0;
a.endAngle = a.x1, delete a.x1;
a.radius = a.y, delete a.y;
a.innerRadius = a.y0, delete a.y0;
a.outerRadius = a.y1, delete a.y1;
a.lineStartAngle = function() { return radialLine(x0()); }, delete a.lineX0;
a.lineEndAngle = function() { return radialLine(x1()); }, delete a.lineX1;
a.lineInnerRadius = function() { return radialLine(y0()); }, delete a.lineY0;
a.lineOuterRadius = function() { return radialLine(y1()); }, delete a.lineY1;
a.curve = function(_) {
return arguments.length ? c(curveRadial(_)) : c()._curve;
};
return a;
}
var circle = {
draw: function(context, size) {
var r = Math.sqrt(size / pi$2);
context.moveTo(r, 0);
context.arc(0, 0, r, 0, tau$2);
}
};
var cross$1 = {
draw: function(context, size) {
var r = Math.sqrt(size / 5) / 2;
context.moveTo(-3 * r, -r);
context.lineTo(-r, -r);
context.lineTo(-r, -3 * r);
context.lineTo(r, -3 * r);
context.lineTo(r, -r);
context.lineTo(3 * r, -r);
context.lineTo(3 * r, r);
context.lineTo(r, r);
context.lineTo(r, 3 * r);
context.lineTo(-r, 3 * r);
context.lineTo(-r, r);
context.lineTo(-3 * r, r);
context.closePath();
}
};
var tan30 = Math.sqrt(1 / 3);
var tan30_2 = tan30 * 2;
var diamond = {
draw: function(context, size) {
var y = Math.sqrt(size / tan30_2),
x = y * tan30;
context.moveTo(0, -y);
context.lineTo(x, 0);
context.lineTo(0, y);
context.lineTo(-x, 0);
context.closePath();
}
};
var ka = 0.89081309152928522810;
var kr = Math.sin(pi$2 / 10) / Math.sin(7 * pi$2 / 10);
var kx = Math.sin(tau$2 / 10) * kr;
var ky = -Math.cos(tau$2 / 10) * kr;
var star = {
draw: function(context, size) {
var r = Math.sqrt(size * ka),
x = kx * r,
y = ky * r;
context.moveTo(0, -r);
context.lineTo(x, y);
for (var i = 1; i < 5; ++i) {
var a = tau$2 * i / 5,
c = Math.cos(a),
s = Math.sin(a);
context.lineTo(s * r, -c * r);
context.lineTo(c * x - s * y, s * x + c * y);
}
context.closePath();
}
};
var square = {
draw: function(context, size) {
var w = Math.sqrt(size),
x = -w / 2;
context.rect(x, x, w, w);
}
};
var sqrt3 = Math.sqrt(3);
var triangle = {
draw: function(context, size) {
var y = -Math.sqrt(size / (sqrt3 * 3));
context.moveTo(0, y * 2);
context.lineTo(-sqrt3 * y, -y);
context.lineTo(sqrt3 * y, -y);
context.closePath();
}
};
var c = -0.5;
var s = Math.sqrt(3) / 2;
var k = 1 / Math.sqrt(12);
var a = (k / 2 + 1) * 3;
var wye = {
draw: function(context, size) {
var r = Math.sqrt(size / a),
x0 = r / 2,
y0 = r * k,
x1 = x0,
y1 = r * k + r,
x2 = -x1,
y2 = y1;
context.moveTo(x0, y0);
context.lineTo(x1, y1);
context.lineTo(x2, y2);
context.lineTo(c * x0 - s * y0, s * x0 + c * y0);
context.lineTo(c * x1 - s * y1, s * x1 + c * y1);
context.lineTo(c * x2 - s * y2, s * x2 + c * y2);
context.lineTo(c * x0 + s * y0, c * y0 - s * x0);
context.lineTo(c * x1 + s * y1, c * y1 - s * x1);
context.lineTo(c * x2 + s * y2, c * y2 - s * x2);
context.closePath();
}
};
var symbols = [
circle,
cross$1,
diamond,
square,
star,
triangle,
wye
];
function symbol() {
var type = constant$1(circle),
size = constant$1(64),
context = null;
function symbol() {
var buffer;
if (!context) context = buffer = path();
type.apply(this, arguments).draw(context, +size.apply(this, arguments));
if (buffer) return context = null, buffer + "" || null;
}
symbol.type = function(_) {
return arguments.length ? (type = typeof _ === "function" ? _ : constant$1(_), symbol) : type;
};
symbol.size = function(_) {
return arguments.length ? (size = typeof _ === "function" ? _ : constant$1(+_), symbol) : size;
};
symbol.context = function(_) {
return arguments.length ? (context = _ == null ? null : _, symbol) : context;
};
return symbol;
}
function noop() {}
function point(that, x, y) {
that._context.bezierCurveTo(
(2 * that._x0 + that._x1) / 3,
(2 * that._y0 + that._y1) / 3,
(that._x0 + 2 * that._x1) / 3,
(that._y0 + 2 * that._y1) / 3,
(that._x0 + 4 * that._x1 + x) / 6,
(that._y0 + 4 * that._y1 + y) / 6
);
}
function Basis(context) {
this._context = context;
}
Basis.prototype = {
areaStart: function() {
this._line = 0;
},
areaEnd: function() {
this._line = NaN;
},
lineStart: function() {
this._x0 = this._x1 =
this._y0 = this._y1 = NaN;
this._point = 0;
},
lineEnd: function() {
switch (this._point) {
case 3: point(this, this._x1, this._y1); // proceed
case 2: this._context.lineTo(this._x1, this._y1); break;
}
if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath();
this._line = 1 - this._line;
},
point: function(x, y) {
x = +x, y = +y;
switch (this._point) {
case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break;
case 1: this._point = 2; break;
case 2: this._point = 3; this._context.lineTo((5 * this._x0 + this._x1) / 6, (5 * this._y0 + this._y1) / 6); // proceed
default: point(this, x, y); break;
}
this._x0 = this._x1, this._x1 = x;
this._y0 = this._y1, this._y1 = y;
}
};
function basis(context) {
return new Basis(context);
}
function BasisClosed(context) {
this._context = context;
}
BasisClosed.prototype = {
areaStart: noop,
areaEnd: noop,
lineStart: function() {
this._x0 = this._x1 = this._x2 = this._x3 = this._x4 =
this._y0 = this._y1 = this._y2 = this._y3 = this._y4 = NaN;
this._point = 0;
},
lineEnd: function() {
switch (this._point) {
case 1: {
this._context.moveTo(this._x2, this._y2);
this._context.closePath();
break;
}
case 2: {
this._context.moveTo((this._x2 + 2 * this._x3) / 3, (this._y2 + 2 * this._y3) / 3);
this._context.lineTo((this._x3 + 2 * this._x2) / 3, (this._y3 + 2 * this._y2) / 3);
this._context.closePath();
break;
}
case 3: {
this.point(this._x2, this._y2);
this.point(this._x3, this._y3);
this.point(this._x4, this._y4);
break;
}
}
},
point: function(x, y) {
x = +x, y = +y;
switch (this._point) {
case 0: this._point = 1; this._x2 = x, this._y2 = y; break;
case 1: this._point = 2; this._x3 = x, this._y3 = y; break;
case 2: this._point = 3; this._x4 = x, this._y4 = y; this._context.moveTo((this._x0 + 4 * this._x1 + x) / 6, (this._y0 + 4 * this._y1 + y) / 6); break;
default: point(this, x, y); break;
}
this._x0 = this._x1, this._x1 = x;
this._y0 = this._y1, this._y1 = y;
}
};
function basisClosed(context) {
return new BasisClosed(context);
}
function BasisOpen(context) {
this._context = context;
}
BasisOpen.prototype = {
areaStart: function() {
this._line = 0;
},
areaEnd: function() {
this._line = NaN;
},
lineStart: function() {
this._x0 = this._x1 =
this._y0 = this._y1 = NaN;
this._point = 0;
},
lineEnd: function() {
if (this._line || (this._line !== 0 && this._point === 3)) this._context.closePath();
this._line = 1 - this._line;
},
point: function(x, y) {
x = +x, y = +y;
switch (this._point) {
case 0: this._point = 1; break;
case 1: this._point = 2; break;
case 2: this._point = 3; var x0 = (this._x0 + 4 * this._x1 + x) / 6, y0 = (this._y0 + 4 * this._y1 + y) / 6; this._line ? this._context.lineTo(x0, y0) : this._context.moveTo(x0, y0); break;
case 3: this._point = 4; // proceed
default: point(this, x, y); break;
}
this._x0 = this._x1, this._x1 = x;
this._y0 = this._y1, this._y1 = y;
}
};
function basisOpen(context) {
return new BasisOpen(context);
}
function Bundle(context, beta) {
this._basis = new Basis(context);
this._beta = beta;
}
Bundle.prototype = {
lineStart: function() {
this._x = [];
this._y = [];
this._basis.lineStart();
},
lineEnd: function() {
var x = this._x,
y = this._y,
j = x.length - 1;
if (j > 0) {
var x0 = x[0],
y0 = y[0],
dx = x[j] - x0,
dy = y[j] - y0,
i = -1,
t;
while (++i <= j) {
t = i / j;
this._basis.point(
this._beta * x[i] + (1 - this._beta) * (x0 + t * dx),
this._beta * y[i] + (1 - this._beta) * (y0 + t * dy)
);
}
}
this._x = this._y = null;
this._basis.lineEnd();
},
point: function(x, y) {
this._x.push(+x);
this._y.push(+y);
}
};
var bundle = (function custom(beta) {
function bundle(context) {
return beta === 1 ? new Basis(context) : new Bundle(context, beta);
}
bundle.beta = function(beta) {
return custom(+beta);
};
return bundle;
})(0.85);
function point$1(that, x, y) {
that._context.bezierCurveTo(
that._x1 + that._k * (that._x2 - that._x0),
that._y1 + that._k * (that._y2 - that._y0),
that._x2 + that._k * (that._x1 - x),
that._y2 + that._k * (that._y1 - y),
that._x2,
that._y2
);
}
function Cardinal(context, tension) {
this._context = context;
this._k = (1 - tension) / 6;
}
Cardinal.prototype = {
areaStart: function() {
this._line = 0;
},
areaEnd: function() {
this._line = NaN;
},
lineStart: function() {
this._x0 = this._x1 = this._x2 =
this._y0 = this._y1 = this._y2 = NaN;
this._point = 0;
},
lineEnd: function() {
switch (this._point) {
case 2: this._context.lineTo(this._x2, this._y2); break;
case 3: point$1(this, this._x1, this._y1); break;
}
if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath();
this._line = 1 - this._line;
},
point: function(x, y) {
x = +x, y = +y;
switch (this._point) {
case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break;
case 1: this._point = 2; this._x1 = x, this._y1 = y; break;
case 2: this._point = 3; // proceed
default: point$1(this, x, y); break;
}
this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;
this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;
}
};
var cardinal = (function custom(tension) {
function cardinal(context) {
return new Cardinal(context, tension);
}
cardinal.tension = function(tension) {
return custom(+tension);
};
return cardinal;
})(0);
function CardinalClosed(context, tension) {
this._context = context;
this._k = (1 - tension) / 6;
}
CardinalClosed.prototype = {
areaStart: noop,
areaEnd: noop,
lineStart: function() {
this._x0 = this._x1 = this._x2 = this._x3 = this._x4 = this._x5 =
this._y0 = this._y1 = this._y2 = this._y3 = this._y4 = this._y5 = NaN;
this._point = 0;
},
lineEnd: function() {
switch (this._point) {
case 1: {
this._context.moveTo(this._x3, this._y3);
this._context.closePath();
break;
}
case 2: {
this._context.lineTo(this._x3, this._y3);
this._context.closePath();
break;
}
case 3: {
this.point(this._x3, this._y3);
this.point(this._x4, this._y4);
this.point(this._x5, this._y5);
break;
}
}
},
point: function(x, y) {
x = +x, y = +y;
switch (this._point) {
case 0: this._point = 1; this._x3 = x, this._y3 = y; break;
case 1: this._point = 2; this._context.moveTo(this._x4 = x, this._y4 = y); break;
case 2: this._point = 3; this._x5 = x, this._y5 = y; break;
default: point$1(this, x, y); break;
}
this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;
this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;
}
};
var cardinalClosed = (function custom(tension) {
function cardinal(context) {
return new CardinalClosed(context, tension);
}
cardinal.tension = function(tension) {
return custom(+tension);
};
return cardinal;
})(0);
function CardinalOpen(context, tension) {
this._context = context;
this._k = (1 - tension) / 6;
}
CardinalOpen.prototype = {
areaStart: function() {
this._line = 0;
},
areaEnd: function() {
this._line = NaN;
},
lineStart: function() {
this._x0 = this._x1 = this._x2 =
this._y0 = this._y1 = this._y2 = NaN;
this._point = 0;
},
lineEnd: function() {
if (this._line || (this._line !== 0 && this._point === 3)) this._context.closePath();
this._line = 1 - this._line;
},
point: function(x, y) {
x = +x, y = +y;
switch (this._point) {
case 0: this._point = 1; break;
case 1: this._point = 2; break;
case 2: this._point = 3; this._line ? this._context.lineTo(this._x2, this._y2) : this._context.moveTo(this._x2, this._y2); break;
case 3: this._point = 4; // proceed
default: point$1(this, x, y); break;
}
this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;
this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;
}
};
var cardinalOpen = (function custom(tension) {
function cardinal(context) {
return new CardinalOpen(context, tension);
}
cardinal.tension = function(tension) {
return custom(+tension);
};
return cardinal;
})(0);
function point$2(that, x, y) {
var x1 = that._x1,
y1 = that._y1,
x2 = that._x2,
y2 = that._y2;
if (that._l01_a > epsilon$1) {
var a = 2 * that._l01_2a + 3 * that._l01_a * that._l12_a + that._l12_2a,
n = 3 * that._l01_a * (that._l01_a + that._l12_a);
x1 = (x1 * a - that._x0 * that._l12_2a + that._x2 * that._l01_2a) / n;
y1 = (y1 * a - that._y0 * that._l12_2a + that._y2 * that._l01_2a) / n;
}
if (that._l23_a > epsilon$1) {
var b = 2 * that._l23_2a + 3 * that._l23_a * that._l12_a + that._l12_2a,
m = 3 * that._l23_a * (that._l23_a + that._l12_a);
x2 = (x2 * b + that._x1 * that._l23_2a - x * that._l12_2a) / m;
y2 = (y2 * b + that._y1 * that._l23_2a - y * that._l12_2a) / m;
}
that._context.bezierCurveTo(x1, y1, x2, y2, that._x2, that._y2);
}
function CatmullRom(context, alpha) {
this._context = context;
this._alpha = alpha;
}
CatmullRom.prototype = {
areaStart: function() {
this._line = 0;
},
areaEnd: function() {
this._line = NaN;
},
lineStart: function() {
this._x0 = this._x1 = this._x2 =
this._y0 = this._y1 = this._y2 = NaN;
this._l01_a = this._l12_a = this._l23_a =
this._l01_2a = this._l12_2a = this._l23_2a =
this._point = 0;
},
lineEnd: function() {
switch (this._point) {
case 2: this._context.lineTo(this._x2, this._y2); break;
case 3: this.point(this, this._x2, this._y2); break;
}
if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath();
this._line = 1 - this._line;
},
point: function(x, y) {
x = +x, y = +y;
if (this._point) {
var x23 = this._x2 - x,
y23 = this._y2 - y;
this._l23_a = Math.sqrt(this._l23_2a = Math.pow(x23 * x23 + y23 * y23, this._alpha));
}
switch (this._point) {
case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break;
case 1: this._point = 2; break;
case 2: this._point = 3; // proceed
default: point$2(this, x, y); break;
}
this._l01_a = this._l12_a, this._l12_a = this._l23_a;
this._l01_2a = this._l12_2a, this._l12_2a = this._l23_2a;
this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;
this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;
}
};
var catmullRom = (function custom(alpha) {
function catmullRom(context) {
return alpha ? new CatmullRom(context, alpha) : new Cardinal(context, 0);
}
catmullRom.alpha = function(alpha) {
return custom(+alpha);
};
return catmullRom;
})(0.5);
function CatmullRomClosed(context, alpha) {
this._context = context;
this._alpha = alpha;
}
CatmullRomClosed.prototype = {
areaStart: noop,
areaEnd: noop,
lineStart: function() {
this._x0 = this._x1 = this._x2 = this._x3 = this._x4 = this._x5 =
this._y0 = this._y1 = this._y2 = this._y3 = this._y4 = this._y5 = NaN;
this._l01_a = this._l12_a = this._l23_a =
this._l01_2a = this._l12_2a = this._l23_2a =
this._point = 0;
},
lineEnd: function() {
switch (this._point) {
case 1: {
this._context.moveTo(this._x3, this._y3);
this._context.closePath();
break;
}
case 2: {
this._context.lineTo(this._x3, this._y3);
this._context.closePath();
break;
}
case 3: {
this.point(this._x3, this._y3);
this.point(this._x4, this._y4);
this.point(this._x5, this._y5);
break;
}
}
},
point: function(x, y) {
x = +x, y = +y;
if (this._point) {
var x23 = this._x2 - x,
y23 = this._y2 - y;
this._l23_a = Math.sqrt(this._l23_2a = Math.pow(x23 * x23 + y23 * y23, this._alpha));
}
switch (this._point) {
case 0: this._point = 1; this._x3 = x, this._y3 = y; break;
case 1: this._point = 2; this._context.moveTo(this._x4 = x, this._y4 = y); break;
case 2: this._point = 3; this._x5 = x, this._y5 = y; break;
default: point$2(this, x, y); break;
}
this._l01_a = this._l12_a, this._l12_a = this._l23_a;
this._l01_2a = this._l12_2a, this._l12_2a = this._l23_2a;
this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;
this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;
}
};
var catmullRomClosed = (function custom(alpha) {
function catmullRom(context) {
return alpha ? new CatmullRomClosed(context, alpha) : new CardinalClosed(context, 0);
}
catmullRom.alpha = function(alpha) {
return custom(+alpha);
};
return catmullRom;
})(0.5);
function CatmullRomOpen(context, alpha) {
this._context = context;
this._alpha = alpha;
}
CatmullRomOpen.prototype = {
areaStart: function() {
this._line = 0;
},
areaEnd: function() {
this._line = NaN;
},
lineStart: function() {
this._x0 = this._x1 = this._x2 =
this._y0 = this._y1 = this._y2 = NaN;
this._l01_a = this._l12_a = this._l23_a =
this._l01_2a = this._l12_2a = this._l23_2a =
this._point = 0;
},
lineEnd: function() {
if (this._line || (this._line !== 0 && this._point === 3)) this._context.closePath();
this._line = 1 - this._line;
},
point: function(x, y) {
x = +x, y = +y;
if (this._point) {
var x23 = this._x2 - x,
y23 = this._y2 - y;
this._l23_a = Math.sqrt(this._l23_2a = Math.pow(x23 * x23 + y23 * y23, this._alpha));
}
switch (this._point) {
case 0: this._point = 1; break;
case 1: this._point = 2; break;
case 2: this._point = 3; this._line ? this._context.lineTo(this._x2, this._y2) : this._context.moveTo(this._x2, this._y2); break;
case 3: this._point = 4; // proceed
default: point$2(this, x, y); break;
}
this._l01_a = this._l12_a, this._l12_a = this._l23_a;
this._l01_2a = this._l12_2a, this._l12_2a = this._l23_2a;
this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;
this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;
}
};
var catmullRomOpen = (function custom(alpha) {
function catmullRom(context) {
return alpha ? new CatmullRomOpen(context, alpha) : new CardinalOpen(context, 0);
}
catmullRom.alpha = function(alpha) {
return custom(+alpha);
};
return catmullRom;
})(0.5);
function LinearClosed(context) {
this._context = context;
}
LinearClosed.prototype = {
areaStart: noop,
areaEnd: noop,
lineStart: function() {
this._point = 0;
},
lineEnd: function() {
if (this._point) this._context.closePath();
},
point: function(x, y) {
x = +x, y = +y;
if (this._point) this._context.lineTo(x, y);
else this._point = 1, this._context.moveTo(x, y);
}
};
function linearClosed(context) {
return new LinearClosed(context);
}
function sign(x) {
return x < 0 ? -1 : 1;
}
// Calculate the slopes of the tangents (Hermite-type interpolation) based on
// the following paper: Steffen, M. 1990. A Simple Method for Monotonic
// Interpolation in One Dimension. Astronomy and Astrophysics, Vol. 239, NO.
// NOV(II), P. 443, 1990.
function slope3(that, x2, y2) {
var h0 = that._x1 - that._x0,
h1 = x2 - that._x1,
s0 = (that._y1 - that._y0) / (h0 || h1 < 0 && -0),
s1 = (y2 - that._y1) / (h1 || h0 < 0 && -0),
p = (s0 * h1 + s1 * h0) / (h0 + h1);
return (sign(s0) + sign(s1)) * Math.min(Math.abs(s0), Math.abs(s1), 0.5 * Math.abs(p)) || 0;
}
// Calculate a one-sided slope.
function slope2(that, t) {
var h = that._x1 - that._x0;
return h ? (3 * (that._y1 - that._y0) / h - t) / 2 : t;
}
// According to https://en.wikipedia.org/wiki/Cubic_Hermite_spline#Representations
// "you can express cubic Hermite interpolation in terms of cubic Bézier curves
// with respect to the four values p0, p0 + m0 / 3, p1 - m1 / 3, p1".
function point$3(that, t0, t1) {
var x0 = that._x0,
y0 = that._y0,
x1 = that._x1,
y1 = that._y1,
dx = (x1 - x0) / 3;
that._context.bezierCurveTo(x0 + dx, y0 + dx * t0, x1 - dx, y1 - dx * t1, x1, y1);
}
function MonotoneX(context) {
this._context = context;
}
MonotoneX.prototype = {
areaStart: function() {
this._line = 0;
},
areaEnd: function() {
this._line = NaN;
},
lineStart: function() {
this._x0 = this._x1 =
this._y0 = this._y1 =
this._t0 = NaN;
this._point = 0;
},
lineEnd: function() {
switch (this._point) {
case 2: this._context.lineTo(this._x1, this._y1); break;
case 3: point$3(this, this._t0, slope2(this, this._t0)); break;
}
if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath();
this._line = 1 - this._line;
},
point: function(x, y) {
var t1 = NaN;
x = +x, y = +y;
if (x === this._x1 && y === this._y1) return; // Ignore coincident points.
switch (this._point) {
case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break;
case 1: this._point = 2; break;
case 2: this._point = 3; point$3(this, slope2(this, t1 = slope3(this, x, y)), t1); break;
default: point$3(this, this._t0, t1 = slope3(this, x, y)); break;
}
this._x0 = this._x1, this._x1 = x;
this._y0 = this._y1, this._y1 = y;
this._t0 = t1;
}
}
function MonotoneY(context) {
this._context = new ReflectContext(context);
}
(MonotoneY.prototype = Object.create(MonotoneX.prototype)).point = function(x, y) {
MonotoneX.prototype.point.call(this, y, x);
};
function ReflectContext(context) {
this._context = context;
}
ReflectContext.prototype = {
moveTo: function(x, y) { this._context.moveTo(y, x); },
closePath: function() { this._context.closePath(); },
lineTo: function(x, y) { this._context.lineTo(y, x); },
bezierCurveTo: function(x1, y1, x2, y2, x, y) { this._context.bezierCurveTo(y1, x1, y2, x2, y, x); }
};
function monotoneX(context) {
return new MonotoneX(context);
}
function monotoneY(context) {
return new MonotoneY(context);
}
function Natural(context) {
this._context = context;
}
Natural.prototype = {
areaStart: function() {
this._line = 0;
},
areaEnd: function() {
this._line = NaN;
},
lineStart: function() {
this._x = [];
this._y = [];
},
lineEnd: function() {
var x = this._x,
y = this._y,
n = x.length;
if (n) {
this._line ? this._context.lineTo(x[0], y[0]) : this._context.moveTo(x[0], y[0]);
if (n === 2) {
this._context.lineTo(x[1], y[1]);
} else {
var px = controlPoints(x),
py = controlPoints(y);
for (var i0 = 0, i1 = 1; i1 < n; ++i0, ++i1) {
this._context.bezierCurveTo(px[0][i0], py[0][i0], px[1][i0], py[1][i0], x[i1], y[i1]);
}
}
}
if (this._line || (this._line !== 0 && n === 1)) this._context.closePath();
this._line = 1 - this._line;
this._x = this._y = null;
},
point: function(x, y) {
this._x.push(+x);
this._y.push(+y);
}
};
// See https://www.particleincell.com/2012/bezier-splines/ for derivation.
function controlPoints(x) {
var i,
n = x.length - 1,
m,
a = new Array(n),
b = new Array(n),
r = new Array(n);
a[0] = 0, b[0] = 2, r[0] = x[0] + 2 * x[1];
for (i = 1; i < n - 1; ++i) a[i] = 1, b[i] = 4, r[i] = 4 * x[i] + 2 * x[i + 1];
a[n - 1] = 2, b[n - 1] = 7, r[n - 1] = 8 * x[n - 1] + x[n];
for (i = 1; i < n; ++i) m = a[i] / b[i - 1], b[i] -= m, r[i] -= m * r[i - 1];
a[n - 1] = r[n - 1] / b[n - 1];
for (i = n - 2; i >= 0; --i) a[i] = (r[i] - a[i + 1]) / b[i];
b[n - 1] = (x[n] + a[n - 1]) / 2;
for (i = 0; i < n - 1; ++i) b[i] = 2 * x[i + 1] - a[i + 1];
return [a, b];
}
function natural(context) {
return new Natural(context);
}
function Step(context, t) {
this._context = context;
this._t = t;
}
Step.prototype = {
areaStart: function() {
this._line = 0;
},
areaEnd: function() {
this._line = NaN;
},
lineStart: function() {
this._x = this._y = NaN;
this._point = 0;
},
lineEnd: function() {
if (0 < this._t && this._t < 1 && this._point === 2) this._context.lineTo(this._x, this._y);
if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath();
if (this._line >= 0) this._t = 1 - this._t, this._line = 1 - this._line;
},
point: function(x, y) {
x = +x, y = +y;
switch (this._point) {
case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break;
case 1: this._point = 2; // proceed
default: {
if (this._t <= 0) {
this._context.lineTo(this._x, y);
this._context.lineTo(x, y);
} else {
var x1 = this._x * (1 - this._t) + x * this._t;
this._context.lineTo(x1, this._y);
this._context.lineTo(x1, y);
}
break;
}
}
this._x = x, this._y = y;
}
};
function step(context) {
return new Step(context, 0.5);
}
function stepBefore(context) {
return new Step(context, 0);
}
function stepAfter(context) {
return new Step(context, 1);
}
var slice$2 = Array.prototype.slice;
function none(series, order) {
if (!((n = series.length) > 1)) return;
for (var i = 1, s0, s1 = series[order[0]], n, m = s1.length; i < n; ++i) {
s0 = s1, s1 = series[order[i]];
for (var j = 0; j < m; ++j) {
s1[j][1] += s1[j][0] = isNaN(s0[j][1]) ? s0[j][0] : s0[j][1];
}
}
}
function none$1(series) {
var n = series.length, o = new Array(n);
while (--n >= 0) o[n] = n;
return o;
}
function stackValue(d, key) {
return d[key];
}
function stack() {
var keys = constant$1([]),
order = none$1,
offset = none,
value = stackValue;
function stack(data) {
var kz = keys.apply(this, arguments),
i,
m = data.length,
n = kz.length,
sz = new Array(n),
oz;
for (i = 0; i < n; ++i) {
for (var ki = kz[i], si = sz[i] = new Array(m), j = 0, sij; j < m; ++j) {
si[j] = sij = [0, +value(data[j], ki, j, data)];
sij.data = data[j];
}
si.key = ki;
}
for (i = 0, oz = order(sz); i < n; ++i) {
sz[oz[i]].index = i;
}
offset(sz, oz);
return sz;
}
stack.keys = function(_) {
return arguments.length ? (keys = typeof _ === "function" ? _ : constant$1(slice$2.call(_)), stack) : keys;
};
stack.value = function(_) {
return arguments.length ? (value = typeof _ === "function" ? _ : constant$1(+_), stack) : value;
};
stack.order = function(_) {
return arguments.length ? (order = _ == null ? none$1 : typeof _ === "function" ? _ : constant$1(slice$2.call(_)), stack) : order;
};
stack.offset = function(_) {
return arguments.length ? (offset = _ == null ? none : _, stack) : offset;
};
return stack;
}
function expand(series, order) {
if (!((n = series.length) > 0)) return;
for (var i, n, j = 0, m = series[0].length, y; j < m; ++j) {
for (y = i = 0; i < n; ++i) y += series[i][j][1] || 0;
if (y) for (i = 0; i < n; ++i) series[i][j][1] /= y;
}
none(series, order);
}
function silhouette(series, order) {
if (!((n = series.length) > 0)) return;
for (var j = 0, s0 = series[order[0]], n, m = s0.length; j < m; ++j) {
for (var i = 0, y = 0; i < n; ++i) y += series[i][j][1] || 0;
s0[j][1] += s0[j][0] = -y / 2;
}
none(series, order);
}
function wiggle(series, order) {
if (!((n = series.length) > 0) || !((m = (s0 = series[order[0]]).length) > 0)) return;
for (var y = 0, j = 1, s0, m, n; j < m; ++j) {
for (var i = 0, s1 = 0, s2 = 0; i < n; ++i) {
var si = series[order[i]],
sij0 = si[j][1] || 0,
sij1 = si[j - 1][1] || 0,
s3 = (sij0 - sij1) / 2;
for (var k = 0; k < i; ++k) {
var sk = series[order[k]],
skj0 = sk[j][1] || 0,
skj1 = sk[j - 1][1] || 0;
s3 += skj0 - skj1;
}
s1 += sij0, s2 += s3 * sij0;
}
s0[j - 1][1] += s0[j - 1][0] = y;
if (s1) y -= s2 / s1;
}
s0[j - 1][1] += s0[j - 1][0] = y;
none(series, order);
}
function ascending$1(series) {
var sums = series.map(sum$1);
return none$1(series).sort(function(a, b) { return sums[a] - sums[b]; });
}
function sum$1(series) {
var s = 0, i = -1, n = series.length, v;
while (++i < n) if (v = +series[i][1]) s += v;
return s;
}
function descending$2(series) {
return ascending$1(series).reverse();
}
function insideOut(series) {
var n = series.length,
i,
j,
sums = series.map(sum$1),
order = none$1(series).sort(function(a, b) { return sums[b] - sums[a]; }),
top = 0,
bottom = 0,
tops = [],
bottoms = [];
for (i = 0; i < n; ++i) {
j = order[i];
if (top < bottom) {
top += sums[j];
tops.push(j);
} else {
bottom += sums[j];
bottoms.push(j);
}
}
return bottoms.reverse().concat(tops);
}
function reverse(series) {
return none$1(series).reverse();
}
function define(constructor, factory, prototype) {
constructor.prototype = factory.prototype = prototype;
prototype.constructor = constructor;
}
function extend(parent, definition) {
var prototype = Object.create(parent.prototype);
for (var key in definition) prototype[key] = definition[key];
return prototype;
}
function Color() {}
var darker = 0.7;
var brighter = 1 / darker;
var reHex3 = /^#([0-9a-f]{3})$/;
var reHex6 = /^#([0-9a-f]{6})$/;
var reRgbInteger = /^rgb\(\s*([-+]?\d+)\s*,\s*([-+]?\d+)\s*,\s*([-+]?\d+)\s*\)$/;
var reRgbPercent = /^rgb\(\s*([-+]?\d+(?:\.\d+)?)%\s*,\s*([-+]?\d+(?:\.\d+)?)%\s*,\s*([-+]?\d+(?:\.\d+)?)%\s*\)$/;
var reRgbaInteger = /^rgba\(\s*([-+]?\d+)\s*,\s*([-+]?\d+)\s*,\s*([-+]?\d+)\s*,\s*([-+]?\d+(?:\.\d+)?)\s*\)$/;
var reRgbaPercent = /^rgba\(\s*([-+]?\d+(?:\.\d+)?)%\s*,\s*([-+]?\d+(?:\.\d+)?)%\s*,\s*([-+]?\d+(?:\.\d+)?)%\s*,\s*([-+]?\d+(?:\.\d+)?)\s*\)$/;
var reHslPercent = /^hsl\(\s*([-+]?\d+(?:\.\d+)?)\s*,\s*([-+]?\d+(?:\.\d+)?)%\s*,\s*([-+]?\d+(?:\.\d+)?)%\s*\)$/;
var reHslaPercent = /^hsla\(\s*([-+]?\d+(?:\.\d+)?)\s*,\s*([-+]?\d+(?:\.\d+)?)%\s*,\s*([-+]?\d+(?:\.\d+)?)%\s*,\s*([-+]?\d+(?:\.\d+)?)\s*\)$/;
var named = {
aliceblue: 0xf0f8ff,
antiquewhite: 0xfaebd7,
aqua: 0x00ffff,
aquamarine: 0x7fffd4,
azure: 0xf0ffff,
beige: 0xf5f5dc,
bisque: 0xffe4c4,
black: 0x000000,
blanchedalmond: 0xffebcd,
blue: 0x0000ff,
blueviolet: 0x8a2be2,
brown: 0xa52a2a,
burlywood: 0xdeb887,
cadetblue: 0x5f9ea0,
chartreuse: 0x7fff00,
chocolate: 0xd2691e,
coral: 0xff7f50,
cornflowerblue: 0x6495ed,
cornsilk: 0xfff8dc,
crimson: 0xdc143c,
cyan: 0x00ffff,
darkblue: 0x00008b,
darkcyan: 0x008b8b,
darkgoldenrod: 0xb8860b,
darkgray: 0xa9a9a9,
darkgreen: 0x006400,
darkgrey: 0xa9a9a9,
darkkhaki: 0xbdb76b,
darkmagenta: 0x8b008b,
darkolivegreen: 0x556b2f,
darkorange: 0xff8c00,
darkorchid: 0x9932cc,
darkred: 0x8b0000,
darksalmon: 0xe9967a,
darkseagreen: 0x8fbc8f,
darkslateblue: 0x483d8b,
darkslategray: 0x2f4f4f,
darkslategrey: 0x2f4f4f,
darkturquoise: 0x00ced1,
darkviolet: 0x9400d3,
deeppink: 0xff1493,
deepskyblue: 0x00bfff,
dimgray: 0x696969,
dimgrey: 0x696969,
dodgerblue: 0x1e90ff,
firebrick: 0xb22222,
floralwhite: 0xfffaf0,
forestgreen: 0x228b22,
fuchsia: 0xff00ff,
gainsboro: 0xdcdcdc,
ghostwhite: 0xf8f8ff,
gold: 0xffd700,
goldenrod: 0xdaa520,
gray: 0x808080,
green: 0x008000,
greenyellow: 0xadff2f,
grey: 0x808080,
honeydew: 0xf0fff0,
hotpink: 0xff69b4,
indianred: 0xcd5c5c,
indigo: 0x4b0082,
ivory: 0xfffff0,
khaki: 0xf0e68c,
lavender: 0xe6e6fa,
lavenderblush: 0xfff0f5,
lawngreen: 0x7cfc00,
lemonchiffon: 0xfffacd,
lightblue: 0xadd8e6,
lightcoral: 0xf08080,
lightcyan: 0xe0ffff,
lightgoldenrodyellow: 0xfafad2,
lightgray: 0xd3d3d3,
lightgreen: 0x90ee90,
lightgrey: 0xd3d3d3,
lightpink: 0xffb6c1,
lightsalmon: 0xffa07a,
lightseagreen: 0x20b2aa,
lightskyblue: 0x87cefa,
lightslategray: 0x778899,
lightslategrey: 0x778899,
lightsteelblue: 0xb0c4de,
lightyellow: 0xffffe0,
lime: 0x00ff00,
limegreen: 0x32cd32,
linen: 0xfaf0e6,
magenta: 0xff00ff,
maroon: 0x800000,
mediumaquamarine: 0x66cdaa,
mediumblue: 0x0000cd,
mediumorchid: 0xba55d3,
mediumpurple: 0x9370db,
mediumseagreen: 0x3cb371,
mediumslateblue: 0x7b68ee,
mediumspringgreen: 0x00fa9a,
mediumturquoise: 0x48d1cc,
mediumvioletred: 0xc71585,
midnightblue: 0x191970,
mintcream: 0xf5fffa,
mistyrose: 0xffe4e1,
moccasin: 0xffe4b5,
navajowhite: 0xffdead,
navy: 0x000080,
oldlace: 0xfdf5e6,
olive: 0x808000,
olivedrab: 0x6b8e23,
orange: 0xffa500,
orangered: 0xff4500,
orchid: 0xda70d6,
palegoldenrod: 0xeee8aa,
palegreen: 0x98fb98,
paleturquoise: 0xafeeee,
palevioletred: 0xdb7093,
papayawhip: 0xffefd5,
peachpuff: 0xffdab9,
peru: 0xcd853f,
pink: 0xffc0cb,
plum: 0xdda0dd,
powderblue: 0xb0e0e6,
purple: 0x800080,
rebeccapurple: 0x663399,
red: 0xff0000,
rosybrown: 0xbc8f8f,
royalblue: 0x4169e1,
saddlebrown: 0x8b4513,
salmon: 0xfa8072,
sandybrown: 0xf4a460,
seagreen: 0x2e8b57,
seashell: 0xfff5ee,
sienna: 0xa0522d,
silver: 0xc0c0c0,
skyblue: 0x87ceeb,
slateblue: 0x6a5acd,
slategray: 0x708090,
slategrey: 0x708090,
snow: 0xfffafa,
springgreen: 0x00ff7f,
steelblue: 0x4682b4,
tan: 0xd2b48c,
teal: 0x008080,
thistle: 0xd8bfd8,
tomato: 0xff6347,
turquoise: 0x40e0d0,
violet: 0xee82ee,
wheat: 0xf5deb3,
white: 0xffffff,
whitesmoke: 0xf5f5f5,
yellow: 0xffff00,
yellowgreen: 0x9acd32
};
define(Color, color, {
displayable: function() {
return this.rgb().displayable();
},
toString: function() {
return this.rgb() + "";
}
});
function color(format) {
var m;
format = (format + "").trim().toLowerCase();
return (m = reHex3.exec(format)) ? (m = parseInt(m[1], 16), new Rgb((m >> 8 & 0xf) | (m >> 4 & 0x0f0), (m >> 4 & 0xf) | (m & 0xf0), ((m & 0xf) << 4) | (m & 0xf), 1)) // #f00
: (m = reHex6.exec(format)) ? rgbn(parseInt(m[1], 16)) // #ff0000
: (m = reRgbInteger.exec(format)) ? new Rgb(m[1], m[2], m[3], 1) // rgb(255, 0, 0)
: (m = reRgbPercent.exec(format)) ? new Rgb(m[1] * 255 / 100, m[2] * 255 / 100, m[3] * 255 / 100, 1) // rgb(100%, 0%, 0%)
: (m = reRgbaInteger.exec(format)) ? rgba(m[1], m[2], m[3], m[4]) // rgba(255, 0, 0, 1)
: (m = reRgbaPercent.exec(format)) ? rgba(m[1] * 255 / 100, m[2] * 255 / 100, m[3] * 255 / 100, m[4]) // rgb(100%, 0%, 0%, 1)
: (m = reHslPercent.exec(format)) ? hsla(m[1], m[2] / 100, m[3] / 100, 1) // hsl(120, 50%, 50%)
: (m = reHslaPercent.exec(format)) ? hsla(m[1], m[2] / 100, m[3] / 100, m[4]) // hsla(120, 50%, 50%, 1)
: named.hasOwnProperty(format) ? rgbn(named[format])
: format === "transparent" ? new Rgb(NaN, NaN, NaN, 0)
: null;
}
function rgbn(n) {
return new Rgb(n >> 16 & 0xff, n >> 8 & 0xff, n & 0xff, 1);
}
function rgba(r, g, b, a) {
if (a <= 0) r = g = b = NaN;
return new Rgb(r, g, b, a);
}
function rgbConvert(o) {
if (!(o instanceof Color)) o = color(o);
if (!o) return new Rgb;
o = o.rgb();
return new Rgb(o.r, o.g, o.b, o.opacity);
}
function colorRgb(r, g, b, opacity) {
return arguments.length === 1 ? rgbConvert(r) : new Rgb(r, g, b, opacity == null ? 1 : opacity);
}
function Rgb(r, g, b, opacity) {
this.r = +r;
this.g = +g;
this.b = +b;
this.opacity = +opacity;
}
define(Rgb, colorRgb, extend(Color, {
brighter: function(k) {
k = k == null ? brighter : Math.pow(brighter, k);
return new Rgb(this.r * k, this.g * k, this.b * k, this.opacity);
},
darker: function(k) {
k = k == null ? darker : Math.pow(darker, k);
return new Rgb(this.r * k, this.g * k, this.b * k, this.opacity);
},
rgb: function() {
return this;
},
displayable: function() {
return (0 <= this.r && this.r <= 255)
&& (0 <= this.g && this.g <= 255)
&& (0 <= this.b && this.b <= 255)
&& (0 <= this.opacity && this.opacity <= 1);
},
toString: function() {
var a = this.opacity; a = isNaN(a) ? 1 : Math.max(0, Math.min(1, a));
return (a === 1 ? "rgb(" : "rgba(")
+ Math.max(0, Math.min(255, Math.round(this.r) || 0)) + ", "
+ Math.max(0, Math.min(255, Math.round(this.g) || 0)) + ", "
+ Math.max(0, Math.min(255, Math.round(this.b) || 0))
+ (a === 1 ? ")" : ", " + a + ")");
}
}));
function hsla(h, s, l, a) {
if (a <= 0) h = s = l = NaN;
else if (l <= 0 || l >= 1) h = s = NaN;
else if (s <= 0) h = NaN;
return new Hsl(h, s, l, a);
}
function hslConvert(o) {
if (o instanceof Hsl) return new Hsl(o.h, o.s, o.l, o.opacity);
if (!(o instanceof Color)) o = color(o);
if (!o) return new Hsl;
if (o instanceof Hsl) return o;
o = o.rgb();
var r = o.r / 255,
g = o.g / 255,
b = o.b / 255,
min = Math.min(r, g, b),
max = Math.max(r, g, b),
h = NaN,
s = max - min,
l = (max + min) / 2;
if (s) {
if (r === max) h = (g - b) / s + (g < b) * 6;
else if (g === max) h = (b - r) / s + 2;
else h = (r - g) / s + 4;
s /= l < 0.5 ? max + min : 2 - max - min;
h *= 60;
} else {
s = l > 0 && l < 1 ? 0 : h;
}
return new Hsl(h, s, l, o.opacity);
}
function colorHsl(h, s, l, opacity) {
return arguments.length === 1 ? hslConvert(h) : new Hsl(h, s, l, opacity == null ? 1 : opacity);
}
function Hsl(h, s, l, opacity) {
this.h = +h;
this.s = +s;
this.l = +l;
this.opacity = +opacity;
}
define(Hsl, colorHsl, extend(Color, {
brighter: function(k) {
k = k == null ? brighter : Math.pow(brighter, k);
return new Hsl(this.h, this.s, this.l * k, this.opacity);
},
darker: function(k) {
k = k == null ? darker : Math.pow(darker, k);
return new Hsl(this.h, this.s, this.l * k, this.opacity);
},
rgb: function() {
var h = this.h % 360 + (this.h < 0) * 360,
s = isNaN(h) || isNaN(this.s) ? 0 : this.s,
l = this.l,
m2 = l + (l < 0.5 ? l : 1 - l) * s,
m1 = 2 * l - m2;
return new Rgb(
hsl2rgb(h >= 240 ? h - 240 : h + 120, m1, m2),
hsl2rgb(h, m1, m2),
hsl2rgb(h < 120 ? h + 240 : h - 120, m1, m2),
this.opacity
);
},
displayable: function() {
return (0 <= this.s && this.s <= 1 || isNaN(this.s))
&& (0 <= this.l && this.l <= 1)
&& (0 <= this.opacity && this.opacity <= 1);
}
}));
/* From FvD 13.37, CSS Color Module Level 3 */
function hsl2rgb(h, m1, m2) {
return (h < 60 ? m1 + (m2 - m1) * h / 60
: h < 180 ? m2
: h < 240 ? m1 + (m2 - m1) * (240 - h) / 60
: m1) * 255;
}
var deg2rad = Math.PI / 180;
var rad2deg = 180 / Math.PI;
var Kn = 18;
var Xn = 0.950470;
var Yn = 1;
var Zn = 1.088830;
var t0 = 4 / 29;
var t1 = 6 / 29;
var t2 = 3 * t1 * t1;
var t3 = t1 * t1 * t1;
function labConvert(o) {
if (o instanceof Lab) return new Lab(o.l, o.a, o.b, o.opacity);
if (o instanceof Hcl) {
var h = o.h * deg2rad;
return new Lab(o.l, Math.cos(h) * o.c, Math.sin(h) * o.c, o.opacity);
}
if (!(o instanceof Rgb)) o = rgbConvert(o);
var b = rgb2xyz(o.r),
a = rgb2xyz(o.g),
l = rgb2xyz(o.b),
x = xyz2lab((0.4124564 * b + 0.3575761 * a + 0.1804375 * l) / Xn),
y = xyz2lab((0.2126729 * b + 0.7151522 * a + 0.0721750 * l) / Yn),
z = xyz2lab((0.0193339 * b + 0.1191920 * a + 0.9503041 * l) / Zn);
return new Lab(116 * y - 16, 500 * (x - y), 200 * (y - z), o.opacity);
}
function lab(l, a, b, opacity) {
return arguments.length === 1 ? labConvert(l) : new Lab(l, a, b, opacity == null ? 1 : opacity);
}
function Lab(l, a, b, opacity) {
this.l = +l;
this.a = +a;
this.b = +b;
this.opacity = +opacity;
}
define(Lab, lab, extend(Color, {
brighter: function(k) {
return new Lab(this.l + Kn * (k == null ? 1 : k), this.a, this.b, this.opacity);
},
darker: function(k) {
return new Lab(this.l - Kn * (k == null ? 1 : k), this.a, this.b, this.opacity);
},
rgb: function() {
var y = (this.l + 16) / 116,
x = isNaN(this.a) ? y : y + this.a / 500,
z = isNaN(this.b) ? y : y - this.b / 200;
y = Yn * lab2xyz(y);
x = Xn * lab2xyz(x);
z = Zn * lab2xyz(z);
return new Rgb(
xyz2rgb( 3.2404542 * x - 1.5371385 * y - 0.4985314 * z), // D65 -> sRGB
xyz2rgb(-0.9692660 * x + 1.8760108 * y + 0.0415560 * z),
xyz2rgb( 0.0556434 * x - 0.2040259 * y + 1.0572252 * z),
this.opacity
);
}
}));
function xyz2lab(t) {
return t > t3 ? Math.pow(t, 1 / 3) : t / t2 + t0;
}
function lab2xyz(t) {
return t > t1 ? t * t * t : t2 * (t - t0);
}
function xyz2rgb(x) {
return 255 * (x <= 0.0031308 ? 12.92 * x : 1.055 * Math.pow(x, 1 / 2.4) - 0.055);
}
function rgb2xyz(x) {
return (x /= 255) <= 0.04045 ? x / 12.92 : Math.pow((x + 0.055) / 1.055, 2.4);
}
function hclConvert(o) {
if (o instanceof Hcl) return new Hcl(o.h, o.c, o.l, o.opacity);
if (!(o instanceof Lab)) o = labConvert(o);
var h = Math.atan2(o.b, o.a) * rad2deg;
return new Hcl(h < 0 ? h + 360 : h, Math.sqrt(o.a * o.a + o.b * o.b), o.l, o.opacity);
}
function colorHcl(h, c, l, opacity) {
return arguments.length === 1 ? hclConvert(h) : new Hcl(h, c, l, opacity == null ? 1 : opacity);
}
function Hcl(h, c, l, opacity) {
this.h = +h;
this.c = +c;
this.l = +l;
this.opacity = +opacity;
}
define(Hcl, colorHcl, extend(Color, {
brighter: function(k) {
return new Hcl(this.h, this.c, this.l + Kn * (k == null ? 1 : k), this.opacity);
},
darker: function(k) {
return new Hcl(this.h, this.c, this.l - Kn * (k == null ? 1 : k), this.opacity);
},
rgb: function() {
return labConvert(this).rgb();
}
}));
var A = -0.14861;
var B = +1.78277;
var C = -0.29227;
var D = -0.90649;
var E = +1.97294;
var ED = E * D;
var EB = E * B;
var BC_DA = B * C - D * A;
function cubehelixConvert(o) {
if (o instanceof Cubehelix) return new Cubehelix(o.h, o.s, o.l, o.opacity);
if (!(o instanceof Rgb)) o = rgbConvert(o);
var r = o.r / 255,
g = o.g / 255,
b = o.b / 255,
l = (BC_DA * b + ED * r - EB * g) / (BC_DA + ED - EB),
bl = b - l,
k = (E * (g - l) - C * bl) / D,
s = Math.sqrt(k * k + bl * bl) / (E * l * (1 - l)), // NaN if l=0 or l=1
h = s ? Math.atan2(k, bl) * rad2deg - 120 : NaN;
return new Cubehelix(h < 0 ? h + 360 : h, s, l, o.opacity);
}
function cubehelix(h, s, l, opacity) {
return arguments.length === 1 ? cubehelixConvert(h) : new Cubehelix(h, s, l, opacity == null ? 1 : opacity);
}
function Cubehelix(h, s, l, opacity) {
this.h = +h;
this.s = +s;
this.l = +l;
this.opacity = +opacity;
}
define(Cubehelix, cubehelix, extend(Color, {
brighter: function(k) {
k = k == null ? brighter : Math.pow(brighter, k);
return new Cubehelix(this.h, this.s, this.l * k, this.opacity);
},
darker: function(k) {
k = k == null ? darker : Math.pow(darker, k);
return new Cubehelix(this.h, this.s, this.l * k, this.opacity);
},
rgb: function() {
var h = isNaN(this.h) ? 0 : (this.h + 120) * deg2rad,
l = +this.l,
a = isNaN(this.s) ? 0 : this.s * l * (1 - l),
cosh = Math.cos(h),
sinh = Math.sin(h);
return new Rgb(
255 * (l + a * (A * cosh + B * sinh)),
255 * (l + a * (C * cosh + D * sinh)),
255 * (l + a * (E * cosh)),
this.opacity
);
}
}));
function basis$1(t1, v0, v1, v2, v3) {
var t2 = t1 * t1, t3 = t2 * t1;
return ((1 - 3 * t1 + 3 * t2 - t3) * v0
+ (4 - 6 * t2 + 3 * t3) * v1
+ (1 + 3 * t1 + 3 * t2 - 3 * t3) * v2
+ t3 * v3) / 6;
}
function basis$2(values) {
var n = values.length - 1;
return function(t) {
var i = t <= 0 ? (t = 0) : t >= 1 ? (t = 1, n - 1) : Math.floor(t * n),
v1 = values[i],
v2 = values[i + 1],
v0 = i > 0 ? values[i - 1] : 2 * v1 - v2,
v3 = i < n - 1 ? values[i + 2] : 2 * v2 - v1;
return basis$1((t - i / n) * n, v0, v1, v2, v3);
};
}
function basisClosed$1(values) {
var n = values.length;
return function(t) {
var i = Math.floor(((t %= 1) < 0 ? ++t : t) * n),
v0 = values[(i + n - 1) % n],
v1 = values[i % n],
v2 = values[(i + 1) % n],
v3 = values[(i + 2) % n];
return basis$1((t - i / n) * n, v0, v1, v2, v3);
};
}
function constant$2(x) {
return function() {
return x;
};
}
function linear$1(a, d) {
return function(t) {
return a + t * d;
};
}
function exponential$1(a, b, y) {
return a = Math.pow(a, y), b = Math.pow(b, y) - a, y = 1 / y, function(t) {
return Math.pow(a + t * b, y);
};
}
function hue(a, b) {
var d = b - a;
return d ? linear$1(a, d > 180 || d < -180 ? d - 360 * Math.round(d / 360) : d) : constant$2(isNaN(a) ? b : a);
}
function gamma(y) {
return (y = +y) === 1 ? nogamma : function(a, b) {
return b - a ? exponential$1(a, b, y) : constant$2(isNaN(a) ? b : a);
};
}
function nogamma(a, b) {
var d = b - a;
return d ? linear$1(a, d) : constant$2(isNaN(a) ? b : a);
}
var interpolateRgb = (function rgbGamma(y) {
var color = gamma(y);
function rgb(start, end) {
var r = color((start = colorRgb(start)).r, (end = colorRgb(end)).r),
g = color(start.g, end.g),
b = color(start.b, end.b),
opacity = color(start.opacity, end.opacity);
return function(t) {
start.r = r(t);
start.g = g(t);
start.b = b(t);
start.opacity = opacity(t);
return start + "";
};
}
rgb.gamma = rgbGamma;
return rgb;
})(1);
function rgbSpline(spline) {
return function(colors) {
var n = colors.length,
r = new Array(n),
g = new Array(n),
b = new Array(n),
i, color;
for (i = 0; i < n; ++i) {
color = colorRgb(colors[i]);
r[i] = color.r || 0;
g[i] = color.g || 0;
b[i] = color.b || 0;
}
r = spline(r);
g = spline(g);
b = spline(b);
color.opacity = 1;
return function(t) {
color.r = r(t);
color.g = g(t);
color.b = b(t);
return color + "";
};
};
}
var rgbBasis = rgbSpline(basis$2);
var rgbBasisClosed = rgbSpline(basisClosed$1);
function array$1(a, b) {
var nb = b ? b.length : 0,
na = a ? Math.min(nb, a.length) : 0,
x = new Array(nb),
c = new Array(nb),
i;
for (i = 0; i < na; ++i) x[i] = interpolate(a[i], b[i]);
for (; i < nb; ++i) c[i] = b[i];
return function(t) {
for (i = 0; i < na; ++i) c[i] = x[i](t);
return c;
};
}
function date(a, b) {
var d = new Date;
return a = +a, b -= a, function(t) {
return d.setTime(a + b * t), d;
};
}
function interpolateNumber(a, b) {
return a = +a, b -= a, function(t) {
return a + b * t;
};
}
function object(a, b) {
var i = {},
c = {},
k;
if (a === null || typeof a !== "object") a = {};
if (b === null || typeof b !== "object") b = {};
for (k in b) {
if (k in a) {
i[k] = interpolate(a[k], b[k]);
} else {
c[k] = b[k];
}
}
return function(t) {
for (k in i) c[k] = i[k](t);
return c;
};
}
var reA = /[-+]?(?:\d+\.?\d*|\.?\d+)(?:[eE][-+]?\d+)?/g;
var reB = new RegExp(reA.source, "g");
function zero(b) {
return function() {
return b;
};
}
function one(b) {
return function(t) {
return b(t) + "";
};
}
function interpolateString(a, b) {
var bi = reA.lastIndex = reB.lastIndex = 0, // scan index for next number in b
am, // current match in a
bm, // current match in b
bs, // string preceding current number in b, if any
i = -1, // index in s
s = [], // string constants and placeholders
q = []; // number interpolators
// Coerce inputs to strings.
a = a + "", b = b + "";
// Interpolate pairs of numbers in a & b.
while ((am = reA.exec(a))
&& (bm = reB.exec(b))) {
if ((bs = bm.index) > bi) { // a string precedes the next number in b
bs = b.slice(bi, bs);
if (s[i]) s[i] += bs; // coalesce with previous string
else s[++i] = bs;
}
if ((am = am[0]) === (bm = bm[0])) { // numbers in a & b match
if (s[i]) s[i] += bm; // coalesce with previous string
else s[++i] = bm;
} else { // interpolate non-matching numbers
s[++i] = null;
q.push({i: i, x: interpolateNumber(am, bm)});
}
bi = reB.lastIndex;
}
// Add remains of b.
if (bi < b.length) {
bs = b.slice(bi);
if (s[i]) s[i] += bs; // coalesce with previous string
else s[++i] = bs;
}
// Special optimization for only a single match.
// Otherwise, interpolate each of the numbers and rejoin the string.
return s.length < 2 ? (q[0]
? one(q[0].x)
: zero(b))
: (b = q.length, function(t) {
for (var i = 0, o; i < b; ++i) s[(o = q[i]).i] = o.x(t);
return s.join("");
});
}
function interpolate(a, b) {
var t = typeof b, c;
return b == null || t === "boolean" ? constant$2(b)
: (t === "number" ? interpolateNumber
: t === "string" ? ((c = color(b)) ? (b = c, interpolateRgb) : interpolateString)
: b instanceof color ? interpolateRgb
: b instanceof Date ? date
: Array.isArray(b) ? array$1
: isNaN(b) ? object
: interpolateNumber)(a, b);
}
function interpolateRound(a, b) {
return a = +a, b -= a, function(t) {
return Math.round(a + b * t);
};
}
var degrees = 180 / Math.PI;
var identity$2 = {
translateX: 0,
translateY: 0,
rotate: 0,
skewX: 0,
scaleX: 1,
scaleY: 1
};
function decompose(a, b, c, d, e, f) {
var scaleX, scaleY, skewX;
if (scaleX = Math.sqrt(a * a + b * b)) a /= scaleX, b /= scaleX;
if (skewX = a * c + b * d) c -= a * skewX, d -= b * skewX;
if (scaleY = Math.sqrt(c * c + d * d)) c /= scaleY, d /= scaleY, skewX /= scaleY;
if (a * d < b * c) a = -a, b = -b, skewX = -skewX, scaleX = -scaleX;
return {
translateX: e,
translateY: f,
rotate: Math.atan2(b, a) * degrees,
skewX: Math.atan(skewX) * degrees,
scaleX: scaleX,
scaleY: scaleY
};
}
var cssNode;
var cssRoot;
var cssView;
var svgNode;
function parseCss(value) {
if (value === "none") return identity$2;
if (!cssNode) cssNode = document.createElement("DIV"), cssRoot = document.documentElement, cssView = document.defaultView;
cssNode.style.transform = value;
value = cssView.getComputedStyle(cssRoot.appendChild(cssNode), null).getPropertyValue("transform");
cssRoot.removeChild(cssNode);
value = value.slice(7, -1).split(",");
return decompose(+value[0], +value[1], +value[2], +value[3], +value[4], +value[5]);
}
function parseSvg(value) {
if (value == null) return identity$2;
if (!svgNode) svgNode = document.createElementNS("http://www.w3.org/2000/svg", "g");
svgNode.setAttribute("transform", value);
if (!(value = svgNode.transform.baseVal.consolidate())) return identity$2;
value = value.matrix;
return decompose(value.a, value.b, value.c, value.d, value.e, value.f);
}
function interpolateTransform(parse, pxComma, pxParen, degParen) {
function pop(s) {
return s.length ? s.pop() + " " : "";
}
function translate(xa, ya, xb, yb, s, q) {
if (xa !== xb || ya !== yb) {
var i = s.push("translate(", null, pxComma, null, pxParen);
q.push({i: i - 4, x: interpolateNumber(xa, xb)}, {i: i - 2, x: interpolateNumber(ya, yb)});
} else if (xb || yb) {
s.push("translate(" + xb + pxComma + yb + pxParen);
}
}
function rotate(a, b, s, q) {
if (a !== b) {
if (a - b > 180) b += 360; else if (b - a > 180) a += 360; // shortest path
q.push({i: s.push(pop(s) + "rotate(", null, degParen) - 2, x: interpolateNumber(a, b)});
} else if (b) {
s.push(pop(s) + "rotate(" + b + degParen);
}
}
function skewX(a, b, s, q) {
if (a !== b) {
q.push({i: s.push(pop(s) + "skewX(", null, degParen) - 2, x: interpolateNumber(a, b)});
} else if (b) {
s.push(pop(s) + "skewX(" + b + degParen);
}
}
function scale(xa, ya, xb, yb, s, q) {
if (xa !== xb || ya !== yb) {
var i = s.push(pop(s) + "scale(", null, ",", null, ")");
q.push({i: i - 4, x: interpolateNumber(xa, xb)}, {i: i - 2, x: interpolateNumber(ya, yb)});
} else if (xb !== 1 || yb !== 1) {
s.push(pop(s) + "scale(" + xb + "," + yb + ")");
}
}
return function(a, b) {
var s = [], // string constants and placeholders
q = []; // number interpolators
a = parse(a), b = parse(b);
translate(a.translateX, a.translateY, b.translateX, b.translateY, s, q);
rotate(a.rotate, b.rotate, s, q);
skewX(a.skewX, b.skewX, s, q);
scale(a.scaleX, a.scaleY, b.scaleX, b.scaleY, s, q);
a = b = null; // gc
return function(t) {
var i = -1, n = q.length, o;
while (++i < n) s[(o = q[i]).i] = o.x(t);
return s.join("");
};
};
}
var interpolateTransform$1 = interpolateTransform(parseCss, "px, ", "px)", "deg)");
var interpolateTransform$2 = interpolateTransform(parseSvg, ", ", ")", ")");
var rho = Math.SQRT2;
var rho2 = 2;
var rho4 = 4;
var epsilon2 = 1e-12;
function cosh(x) {
return ((x = Math.exp(x)) + 1 / x) / 2;
}
function sinh(x) {
return ((x = Math.exp(x)) - 1 / x) / 2;
}
function tanh(x) {
return ((x = Math.exp(2 * x)) - 1) / (x + 1);
}
// p0 = [ux0, uy0, w0]
// p1 = [ux1, uy1, w1]
function interpolateZoom(p0, p1) {
var ux0 = p0[0], uy0 = p0[1], w0 = p0[2],
ux1 = p1[0], uy1 = p1[1], w1 = p1[2],
dx = ux1 - ux0,
dy = uy1 - uy0,
d2 = dx * dx + dy * dy,
i,
S;
// Special case for u0 ≅ u1.
if (d2 < epsilon2) {
S = Math.log(w1 / w0) / rho;
i = function(t) {
return [
ux0 + t * dx,
uy0 + t * dy,
w0 * Math.exp(rho * t * S)
];
}
}
// General case.
else {
var d1 = Math.sqrt(d2),
b0 = (w1 * w1 - w0 * w0 + rho4 * d2) / (2 * w0 * rho2 * d1),
b1 = (w1 * w1 - w0 * w0 - rho4 * d2) / (2 * w1 * rho2 * d1),
r0 = Math.log(Math.sqrt(b0 * b0 + 1) - b0),
r1 = Math.log(Math.sqrt(b1 * b1 + 1) - b1);
S = (r1 - r0) / rho;
i = function(t) {
var s = t * S,
coshr0 = cosh(r0),
u = w0 / (rho2 * d1) * (coshr0 * tanh(rho * s + r0) - sinh(r0));
return [
ux0 + u * dx,
uy0 + u * dy,
w0 * coshr0 / cosh(rho * s + r0)
];
}
}
i.duration = S * 1000;
return i;
}
function hsl(hue) {
return function(start, end) {
var h = hue((start = colorHsl(start)).h, (end = colorHsl(end)).h),
s = nogamma(start.s, end.s),
l = nogamma(start.l, end.l),
opacity = nogamma(start.opacity, end.opacity);
return function(t) {
start.h = h(t);
start.s = s(t);
start.l = l(t);
start.opacity = opacity(t);
return start + "";
};
}
}
var hsl$1 = hsl(hue);
var hslLong = hsl(nogamma);
function lab$1(start, end) {
var l = nogamma((start = lab(start)).l, (end = lab(end)).l),
a = nogamma(start.a, end.a),
b = nogamma(start.b, end.b),
opacity = nogamma(start.opacity, end.opacity);
return function(t) {
start.l = l(t);
start.a = a(t);
start.b = b(t);
start.opacity = opacity(t);
return start + "";
};
}
function hcl(hue) {
return function(start, end) {
var h = hue((start = colorHcl(start)).h, (end = colorHcl(end)).h),
c = nogamma(start.c, end.c),
l = nogamma(start.l, end.l),
opacity = nogamma(start.opacity, end.opacity);
return function(t) {
start.h = h(t);
start.c = c(t);
start.l = l(t);
start.opacity = opacity(t);
return start + "";
};
}
}
var hcl$1 = hcl(hue);
var hclLong = hcl(nogamma);
function cubehelix$1(hue) {
return (function cubehelixGamma(y) {
y = +y;
function cubehelix$$(start, end) {
var h = hue((start = cubehelix(start)).h, (end = cubehelix(end)).h),
s = nogamma(start.s, end.s),
l = nogamma(start.l, end.l),
opacity = nogamma(start.opacity, end.opacity);
return function(t) {
start.h = h(t);
start.s = s(t);
start.l = l(Math.pow(t, y));
start.opacity = opacity(t);
return start + "";
};
}
cubehelix$$.gamma = cubehelixGamma;
return cubehelix$$;
})(1);
}
var cubehelix$2 = cubehelix$1(hue);
var interpolateCubehelixLong = cubehelix$1(nogamma);
function quantize(interpolator, n) {
var samples = new Array(n);
for (var i = 0; i < n; ++i) samples[i] = interpolator(i / (n - 1));
return samples;
}
var noop$1 = {value: function() {}};
function dispatch() {
for (var i = 0, n = arguments.length, _ = {}, t; i < n; ++i) {
if (!(t = arguments[i] + "") || (t in _)) throw new Error("illegal type: " + t);
_[t] = [];
}
return new Dispatch(_);
}
function Dispatch(_) {
this._ = _;
}
function parseTypenames(typenames, types) {
return typenames.trim().split(/^|\s+/).map(function(t) {
var name = "", i = t.indexOf(".");
if (i >= 0) name = t.slice(i + 1), t = t.slice(0, i);
if (t && !types.hasOwnProperty(t)) throw new Error("unknown type: " + t);
return {type: t, name: name};
});
}
Dispatch.prototype = dispatch.prototype = {
constructor: Dispatch,
on: function(typename, callback) {
var _ = this._,
T = parseTypenames(typename + "", _),
t,
i = -1,
n = T.length;
// If no callback was specified, return the callback of the given type and name.
if (arguments.length < 2) {
while (++i < n) if ((t = (typename = T[i]).type) && (t = get(_[t], typename.name))) return t;
return;
}
// If a type was specified, set the callback for the given type and name.
// Otherwise, if a null callback was specified, remove callbacks of the given name.
if (callback != null && typeof callback !== "function") throw new Error("invalid callback: " + callback);
while (++i < n) {
if (t = (typename = T[i]).type) _[t] = set$1(_[t], typename.name, callback);
else if (callback == null) for (t in _) _[t] = set$1(_[t], typename.name, null);
}
return this;
},
copy: function() {
var copy = {}, _ = this._;
for (var t in _) copy[t] = _[t].slice();
return new Dispatch(copy);
},
call: function(type, that) {
if ((n = arguments.length - 2) > 0) for (var args = new Array(n), i = 0, n, t; i < n; ++i) args[i] = arguments[i + 2];
if (!this._.hasOwnProperty(type)) throw new Error("unknown type: " + type);
for (t = this._[type], i = 0, n = t.length; i < n; ++i) t[i].value.apply(that, args);
},
apply: function(type, that, args) {
if (!this._.hasOwnProperty(type)) throw new Error("unknown type: " + type);
for (var t = this._[type], i = 0, n = t.length; i < n; ++i) t[i].value.apply(that, args);
}
};
function get(type, name) {
for (var i = 0, n = type.length, c; i < n; ++i) {
if ((c = type[i]).name === name) {
return c.value;
}
}
}
function set$1(type, name, callback) {
for (var i = 0, n = type.length; i < n; ++i) {
if (type[i].name === name) {
type[i] = noop$1, type = type.slice(0, i).concat(type.slice(i + 1));
break;
}
}
if (callback != null) type.push({name: name, value: callback});
return type;
}
function objectConverter(columns) {
return new Function("d", "return {" + columns.map(function(name, i) {
return JSON.stringify(name) + ": d[" + i + "]";
}).join(",") + "}");
}
function customConverter(columns, f) {
var object = objectConverter(columns);
return function(row, i) {
return f(object(row), i, columns);
};
}
// Compute unique columns in order of discovery.
function inferColumns(rows) {
var columnSet = Object.create(null),
columns = [];
rows.forEach(function(row) {
for (var column in row) {
if (!(column in columnSet)) {
columns.push(columnSet[column] = column);
}
}
});
return columns;
}
function dsv(delimiter) {
var reFormat = new RegExp("[\"" + delimiter + "\n]"),
delimiterCode = delimiter.charCodeAt(0);
function parse(text, f) {
var convert, columns, rows = parseRows(text, function(row, i) {
if (convert) return convert(row, i - 1);
columns = row, convert = f ? customConverter(row, f) : objectConverter(row);
});
rows.columns = columns;
return rows;
}
function parseRows(text, f) {
var EOL = {}, // sentinel value for end-of-line
EOF = {}, // sentinel value for end-of-file
rows = [], // output rows
N = text.length,
I = 0, // current character index
n = 0, // the current line number
t, // the current token
eol; // is the current token followed by EOL?
function token() {
if (I >= N) return EOF; // special case: end of file
if (eol) return eol = false, EOL; // special case: end of line
// special case: quotes
var j = I, c;
if (text.charCodeAt(j) === 34) {
var i = j;
while (i++ < N) {
if (text.charCodeAt(i) === 34) {
if (text.charCodeAt(i + 1) !== 34) break;
++i;
}
}
I = i + 2;
c = text.charCodeAt(i + 1);
if (c === 13) {
eol = true;
if (text.charCodeAt(i + 2) === 10) ++I;
} else if (c === 10) {
eol = true;
}
return text.slice(j + 1, i).replace(/""/g, "\"");
}
// common case: find next delimiter or newline
while (I < N) {
var k = 1;
c = text.charCodeAt(I++);
if (c === 10) eol = true; // \n
else if (c === 13) { eol = true; if (text.charCodeAt(I) === 10) ++I, ++k; } // \r|\r\n
else if (c !== delimiterCode) continue;
return text.slice(j, I - k);
}
// special case: last token before EOF
return text.slice(j);
}
while ((t = token()) !== EOF) {
var a = [];
while (t !== EOL && t !== EOF) {
a.push(t);
t = token();
}
if (f && (a = f(a, n++)) == null) continue;
rows.push(a);
}
return rows;
}
function format(rows, columns) {
if (columns == null) columns = inferColumns(rows);
return [columns.map(formatValue).join(delimiter)].concat(rows.map(function(row) {
return columns.map(function(column) {
return formatValue(row[column]);
}).join(delimiter);
})).join("\n");
}
function formatRows(rows) {
return rows.map(formatRow).join("\n");
}
function formatRow(row) {
return row.map(formatValue).join(delimiter);
}
function formatValue(text) {
return text == null ? ""
: reFormat.test(text += "") ? "\"" + text.replace(/\"/g, "\"\"") + "\""
: text;
}
return {
parse: parse,
parseRows: parseRows,
format: format,
formatRows: formatRows
};
}
var csv = dsv(",");
var csvParse = csv.parse;
var csvParseRows = csv.parseRows;
var csvFormat = csv.format;
var csvFormatRows = csv.formatRows;
var tsv = dsv("\t");
var tsvParse = tsv.parse;
var tsvParseRows = tsv.parseRows;
var tsvFormat = tsv.format;
var tsvFormatRows = tsv.formatRows;
function request(url, callback) {
var request,
event = dispatch("beforesend", "progress", "load", "error"),
mimeType,
headers = map$1(),
xhr = new XMLHttpRequest,
user = null,
password = null,
response,
responseType,
timeout = 0;
// If IE does not support CORS, use XDomainRequest.
if (typeof XDomainRequest !== "undefined"
&& !("withCredentials" in xhr)
&& /^(http(s)?:)?\/\//.test(url)) xhr = new XDomainRequest;
"onload" in xhr
? xhr.onload = xhr.onerror = xhr.ontimeout = respond
: xhr.onreadystatechange = function(o) { xhr.readyState > 3 && respond(o); };
function respond(o) {
var status = xhr.status, result;
if (!status && hasResponse(xhr)
|| status >= 200 && status < 300
|| status === 304) {
if (response) {
try {
result = response.call(request, xhr);
} catch (e) {
event.call("error", request, e);
return;
}
} else {
result = xhr;
}
event.call("load", request, result);
} else {
event.call("error", request, o);
}
}
xhr.onprogress = function(e) {
event.call("progress", request, e);
};
request = {
header: function(name, value) {
name = (name + "").toLowerCase();
if (arguments.length < 2) return headers.get(name);
if (value == null) headers.remove(name);
else headers.set(name, value + "");
return request;
},
// If mimeType is non-null and no Accept header is set, a default is used.
mimeType: function(value) {
if (!arguments.length) return mimeType;
mimeType = value == null ? null : value + "";
return request;
},
// Specifies what type the response value should take;
// for instance, arraybuffer, blob, document, or text.
responseType: function(value) {
if (!arguments.length) return responseType;
responseType = value;
return request;
},
timeout: function(value) {
if (!arguments.length) return timeout;
timeout = +value;
return request;
},
user: function(value) {
return arguments.length < 1 ? user : (user = value == null ? null : value + "", request);
},
password: function(value) {
return arguments.length < 1 ? password : (password = value == null ? null : value + "", request);
},
// Specify how to convert the response content to a specific type;
// changes the callback value on "load" events.
response: function(value) {
response = value;
return request;
},
// Alias for send("GET", …).
get: function(data, callback) {
return request.send("GET", data, callback);
},
// Alias for send("POST", …).
post: function(data, callback) {
return request.send("POST", data, callback);
},
// If callback is non-null, it will be used for error and load events.
send: function(method, data, callback) {
xhr.open(method, url, true, user, password);
if (mimeType != null && !headers.has("accept")) headers.set("accept", mimeType + ",*/*");
if (xhr.setRequestHeader) headers.each(function(value, name) { xhr.setRequestHeader(name, value); });
if (mimeType != null && xhr.overrideMimeType) xhr.overrideMimeType(mimeType);
if (responseType != null) xhr.responseType = responseType;
if (timeout > 0) xhr.timeout = timeout;
if (callback == null && typeof data === "function") callback = data, data = null;
if (callback != null && callback.length === 1) callback = fixCallback(callback);
if (callback != null) request.on("error", callback).on("load", function(xhr) { callback(null, xhr); });
event.call("beforesend", request, xhr);
xhr.send(data == null ? null : data);
return request;
},
abort: function() {
xhr.abort();
return request;
},
on: function() {
var value = event.on.apply(event, arguments);
return value === event ? request : value;
}
};
if (callback != null) {
if (typeof callback !== "function") throw new Error("invalid callback: " + callback);
return request.get(callback);
}
return request;
}
function fixCallback(callback) {
return function(error, xhr) {
callback(error == null ? xhr : null);
};
}
function hasResponse(xhr) {
var type = xhr.responseType;
return type && type !== "text"
? xhr.response // null on error
: xhr.responseText; // "" on error
}
function type(defaultMimeType, response) {
return function(url, callback) {
var r = request(url).mimeType(defaultMimeType).response(response);
if (callback != null) {
if (typeof callback !== "function") throw new Error("invalid callback: " + callback);
return r.get(callback);
}
return r;
};
}
var html = type("text/html", function(xhr) {
return document.createRange().createContextualFragment(xhr.responseText);
});
var json = type("application/json", function(xhr) {
return JSON.parse(xhr.responseText);
});
var text = type("text/plain", function(xhr) {
return xhr.responseText;
});
var xml = type("application/xml", function(xhr) {
var xml = xhr.responseXML;
if (!xml) throw new Error("parse error");
return xml;
});
function dsv$1(defaultMimeType, parse) {
return function(url, row, callback) {
if (arguments.length < 3) callback = row, row = null;
var r = request(url).mimeType(defaultMimeType);
r.row = function(_) { return arguments.length ? r.response(responseOf(parse, row = _)) : row; };
r.row(row);
return callback ? r.get(callback) : r;
};
}
function responseOf(parse, row) {
return function(request) {
return parse(request.responseText, row);
};
}
var csv$1 = dsv$1("text/csv", csvParse);
var tsv$1 = dsv$1("text/tab-separated-values", tsvParse);
var frame = 0;
var timeout = 0;
var interval = 0;
var pokeDelay = 1000;
var taskHead;
var taskTail;
var clockLast = 0;
var clockNow = 0;
var clockSkew = 0;
var clock = typeof performance === "object" && performance.now ? performance : Date;
var setFrame = typeof requestAnimationFrame === "function"
? (clock === Date ? function(f) { requestAnimationFrame(function() { f(clock.now()); }); } : requestAnimationFrame)
: function(f) { setTimeout(f, 17); };
function now() {
return clockNow || (setFrame(clearNow), clockNow = clock.now() + clockSkew);
}
function clearNow() {
clockNow = 0;
}
function Timer() {
this._call =
this._time =
this._next = null;
}
Timer.prototype = timer.prototype = {
constructor: Timer,
restart: function(callback, delay, time) {
if (typeof callback !== "function") throw new TypeError("callback is not a function");
time = (time == null ? now() : +time) + (delay == null ? 0 : +delay);
if (!this._next && taskTail !== this) {
if (taskTail) taskTail._next = this;
else taskHead = this;
taskTail = this;
}
this._call = callback;
this._time = time;
sleep();
},
stop: function() {
if (this._call) {
this._call = null;
this._time = Infinity;
sleep();
}
}
};
function timer(callback, delay, time) {
var t = new Timer;
t.restart(callback, delay, time);
return t;
}
function timerFlush() {
now(); // Get the current time, if not already set.
++frame; // Pretend we’ve set an alarm, if we haven’t already.
var t = taskHead, e;
while (t) {
if ((e = clockNow - t._time) >= 0) t._call.call(null, e);
t = t._next;
}
--frame;
}
function wake(time) {
clockNow = (clockLast = time || clock.now()) + clockSkew;
frame = timeout = 0;
try {
timerFlush();
} finally {
frame = 0;
nap();
clockNow = 0;
}
}
function poke$1() {
var now = clock.now(), delay = now - clockLast;
if (delay > pokeDelay) clockSkew -= delay, clockLast = now;
}
function nap() {
var t0, t1 = taskHead, t2, time = Infinity;
while (t1) {
if (t1._call) {
if (time > t1._time) time = t1._time;
t0 = t1, t1 = t1._next;
} else {
t2 = t1._next, t1._next = null;
t1 = t0 ? t0._next = t2 : taskHead = t2;
}
}
taskTail = t0;
sleep(time);
}
function sleep(time) {
if (frame) return; // Soonest alarm already set, or will be.
if (timeout) timeout = clearTimeout(timeout);
var delay = time - clockNow;
if (delay > 24) {
if (time < Infinity) timeout = setTimeout(wake, delay);
if (interval) interval = clearInterval(interval);
} else {
if (!interval) interval = setInterval(poke$1, pokeDelay);
frame = 1, setFrame(wake);
}
}
function timeout$1(callback, delay, time) {
var t = new Timer;
delay = delay == null ? 0 : +delay;
t.restart(function(elapsed) {
t.stop();
callback(elapsed + delay);
}, delay, time);
return t;
}
function interval$1(callback, delay, time) {
var t = new Timer, total = delay;
if (delay == null) return t.restart(callback, delay, time), t;
delay = +delay, time = time == null ? now() : +time;
t.restart(function tick(elapsed) {
elapsed += total;
t.restart(tick, total += delay, time);
callback(elapsed);
}, delay, time);
return t;
}
var t0$1 = new Date;
var t1$1 = new Date;
function newInterval(floori, offseti, count, field) {
function interval(date) {
return floori(date = new Date(+date)), date;
}
interval.floor = interval;
interval.ceil = function(date) {
return floori(date = new Date(date - 1)), offseti(date, 1), floori(date), date;
};
interval.round = function(date) {
var d0 = interval(date),
d1 = interval.ceil(date);
return date - d0 < d1 - date ? d0 : d1;
};
interval.offset = function(date, step) {
return offseti(date = new Date(+date), step == null ? 1 : Math.floor(step)), date;
};
interval.range = function(start, stop, step) {
var range = [];
start = interval.ceil(start);
step = step == null ? 1 : Math.floor(step);
if (!(start < stop) || !(step > 0)) return range; // also handles Invalid Date
do range.push(new Date(+start)); while (offseti(start, step), floori(start), start < stop)
return range;
};
interval.filter = function(test) {
return newInterval(function(date) {
while (floori(date), !test(date)) date.setTime(date - 1);
}, function(date, step) {
while (--step >= 0) while (offseti(date, 1), !test(date));
});
};
if (count) {
interval.count = function(start, end) {
t0$1.setTime(+start), t1$1.setTime(+end);
floori(t0$1), floori(t1$1);
return Math.floor(count(t0$1, t1$1));
};
interval.every = function(step) {
step = Math.floor(step);
return !isFinite(step) || !(step > 0) ? null
: !(step > 1) ? interval
: interval.filter(field
? function(d) { return field(d) % step === 0; }
: function(d) { return interval.count(0, d) % step === 0; });
};
}
return interval;
}
var millisecond = newInterval(function() {
// noop
}, function(date, step) {
date.setTime(+date + step);
}, function(start, end) {
return end - start;
});
// An optimized implementation for this simple case.
millisecond.every = function(k) {
k = Math.floor(k);
if (!isFinite(k) || !(k > 0)) return null;
if (!(k > 1)) return millisecond;
return newInterval(function(date) {
date.setTime(Math.floor(date / k) * k);
}, function(date, step) {
date.setTime(+date + step * k);
}, function(start, end) {
return (end - start) / k;
});
};
var milliseconds = millisecond.range;
var durationSecond = 1e3;
var durationMinute = 6e4;
var durationHour = 36e5;
var durationDay = 864e5;
var durationWeek = 6048e5;
var second = newInterval(function(date) {
date.setTime(Math.floor(date / durationSecond) * durationSecond);
}, function(date, step) {
date.setTime(+date + step * durationSecond);
}, function(start, end) {
return (end - start) / durationSecond;
}, function(date) {
return date.getUTCSeconds();
});
var seconds = second.range;
var minute = newInterval(function(date) {
date.setTime(Math.floor(date / durationMinute) * durationMinute);
}, function(date, step) {
date.setTime(+date + step * durationMinute);
}, function(start, end) {
return (end - start) / durationMinute;
}, function(date) {
return date.getMinutes();
});
var minutes = minute.range;
var hour = newInterval(function(date) {
var offset = date.getTimezoneOffset() * durationMinute % durationHour;
if (offset < 0) offset += durationHour;
date.setTime(Math.floor((+date - offset) / durationHour) * durationHour + offset);
}, function(date, step) {
date.setTime(+date + step * durationHour);
}, function(start, end) {
return (end - start) / durationHour;
}, function(date) {
return date.getHours();
});
var hours = hour.range;
var day = newInterval(function(date) {
date.setHours(0, 0, 0, 0);
}, function(date, step) {
date.setDate(date.getDate() + step);
}, function(start, end) {
return (end - start - (end.getTimezoneOffset() - start.getTimezoneOffset()) * durationMinute) / durationDay;
}, function(date) {
return date.getDate() - 1;
});
var days = day.range;
function weekday(i) {
return newInterval(function(date) {
date.setDate(date.getDate() - (date.getDay() + 7 - i) % 7);
date.setHours(0, 0, 0, 0);
}, function(date, step) {
date.setDate(date.getDate() + step * 7);
}, function(start, end) {
return (end - start - (end.getTimezoneOffset() - start.getTimezoneOffset()) * durationMinute) / durationWeek;
});
}
var timeWeek = weekday(0);
var timeMonday = weekday(1);
var tuesday = weekday(2);
var wednesday = weekday(3);
var thursday = weekday(4);
var friday = weekday(5);
var saturday = weekday(6);
var sundays = timeWeek.range;
var mondays = timeMonday.range;
var tuesdays = tuesday.range;
var wednesdays = wednesday.range;
var thursdays = thursday.range;
var fridays = friday.range;
var saturdays = saturday.range;
var month = newInterval(function(date) {
date.setDate(1);
date.setHours(0, 0, 0, 0);
}, function(date, step) {
date.setMonth(date.getMonth() + step);
}, function(start, end) {
return end.getMonth() - start.getMonth() + (end.getFullYear() - start.getFullYear()) * 12;
}, function(date) {
return date.getMonth();
});
var months = month.range;
var year = newInterval(function(date) {
date.setMonth(0, 1);
date.setHours(0, 0, 0, 0);
}, function(date, step) {
date.setFullYear(date.getFullYear() + step);
}, function(start, end) {
return end.getFullYear() - start.getFullYear();
}, function(date) {
return date.getFullYear();
});
// An optimized implementation for this simple case.
year.every = function(k) {
return !isFinite(k = Math.floor(k)) || !(k > 0) ? null : newInterval(function(date) {
date.setFullYear(Math.floor(date.getFullYear() / k) * k);
date.setMonth(0, 1);
date.setHours(0, 0, 0, 0);
}, function(date, step) {
date.setFullYear(date.getFullYear() + step * k);
});
};
var years = year.range;
var utcMinute = newInterval(function(date) {
date.setUTCSeconds(0, 0);
}, function(date, step) {
date.setTime(+date + step * durationMinute);
}, function(start, end) {
return (end - start) / durationMinute;
}, function(date) {
return date.getUTCMinutes();
});
var utcMinutes = utcMinute.range;
var utcHour = newInterval(function(date) {
date.setUTCMinutes(0, 0, 0);
}, function(date, step) {
date.setTime(+date + step * durationHour);
}, function(start, end) {
return (end - start) / durationHour;
}, function(date) {
return date.getUTCHours();
});
var utcHours = utcHour.range;
var utcDay = newInterval(function(date) {
date.setUTCHours(0, 0, 0, 0);
}, function(date, step) {
date.setUTCDate(date.getUTCDate() + step);
}, function(start, end) {
return (end - start) / durationDay;
}, function(date) {
return date.getUTCDate() - 1;
});
var utcDays = utcDay.range;
function utcWeekday(i) {
return newInterval(function(date) {
date.setUTCDate(date.getUTCDate() - (date.getUTCDay() + 7 - i) % 7);
date.setUTCHours(0, 0, 0, 0);
}, function(date, step) {
date.setUTCDate(date.getUTCDate() + step * 7);
}, function(start, end) {
return (end - start) / durationWeek;
});
}
var utcWeek = utcWeekday(0);
var utcMonday = utcWeekday(1);
var utcTuesday = utcWeekday(2);
var utcWednesday = utcWeekday(3);
var utcThursday = utcWeekday(4);
var utcFriday = utcWeekday(5);
var utcSaturday = utcWeekday(6);
var utcSundays = utcWeek.range;
var utcMondays = utcMonday.range;
var utcTuesdays = utcTuesday.range;
var utcWednesdays = utcWednesday.range;
var utcThursdays = utcThursday.range;
var utcFridays = utcFriday.range;
var utcSaturdays = utcSaturday.range;
var utcMonth = newInterval(function(date) {
date.setUTCDate(1);
date.setUTCHours(0, 0, 0, 0);
}, function(date, step) {
date.setUTCMonth(date.getUTCMonth() + step);
}, function(start, end) {
return end.getUTCMonth() - start.getUTCMonth() + (end.getUTCFullYear() - start.getUTCFullYear()) * 12;
}, function(date) {
return date.getUTCMonth();
});
var utcMonths = utcMonth.range;
var utcYear = newInterval(function(date) {
date.setUTCMonth(0, 1);
date.setUTCHours(0, 0, 0, 0);
}, function(date, step) {
date.setUTCFullYear(date.getUTCFullYear() + step);
}, function(start, end) {
return end.getUTCFullYear() - start.getUTCFullYear();
}, function(date) {
return date.getUTCFullYear();
});
// An optimized implementation for this simple case.
utcYear.every = function(k) {
return !isFinite(k = Math.floor(k)) || !(k > 0) ? null : newInterval(function(date) {
date.setUTCFullYear(Math.floor(date.getUTCFullYear() / k) * k);
date.setUTCMonth(0, 1);
date.setUTCHours(0, 0, 0, 0);
}, function(date, step) {
date.setUTCFullYear(date.getUTCFullYear() + step * k);
});
};
var utcYears = utcYear.range;
// Computes the decimal coefficient and exponent of the specified number x with
// significant digits p, where x is positive and p is in [1, 21] or undefined.
// For example, formatDecimal(1.23) returns ["123", 0].
function formatDecimal(x, p) {
if ((i = (x = p ? x.toExponential(p - 1) : x.toExponential()).indexOf("e")) < 0) return null; // NaN, ±Infinity
var i, coefficient = x.slice(0, i);
// The string returned by toExponential either has the form \d\.\d+e[-+]\d+
// (e.g., 1.2e+3) or the form \de[-+]\d+ (e.g., 1e+3).
return [
coefficient.length > 1 ? coefficient[0] + coefficient.slice(2) : coefficient,
+x.slice(i + 1)
];
}
function exponent$1(x) {
return x = formatDecimal(Math.abs(x)), x ? x[1] : NaN;
}
function formatGroup(grouping, thousands) {
return function(value, width) {
var i = value.length,
t = [],
j = 0,
g = grouping[0],
length = 0;
while (i > 0 && g > 0) {
if (length + g + 1 > width) g = Math.max(1, width - length);
t.push(value.substring(i -= g, i + g));
if ((length += g + 1) > width) break;
g = grouping[j = (j + 1) % grouping.length];
}
return t.reverse().join(thousands);
};
}
function formatDefault(x, p) {
x = x.toPrecision(p);
out: for (var n = x.length, i = 1, i0 = -1, i1; i < n; ++i) {
switch (x[i]) {
case ".": i0 = i1 = i; break;
case "0": if (i0 === 0) i0 = i; i1 = i; break;
case "e": break out;
default: if (i0 > 0) i0 = 0; break;
}
}
return i0 > 0 ? x.slice(0, i0) + x.slice(i1 + 1) : x;
}
var prefixExponent;
function formatPrefixAuto(x, p) {
var d = formatDecimal(x, p);
if (!d) return x + "";
var coefficient = d[0],
exponent = d[1],
i = exponent - (prefixExponent = Math.max(-8, Math.min(8, Math.floor(exponent / 3))) * 3) + 1,
n = coefficient.length;
return i === n ? coefficient
: i > n ? coefficient + new Array(i - n + 1).join("0")
: i > 0 ? coefficient.slice(0, i) + "." + coefficient.slice(i)
: "0." + new Array(1 - i).join("0") + formatDecimal(x, Math.max(0, p + i - 1))[0]; // less than 1y!
}
function formatRounded(x, p) {
var d = formatDecimal(x, p);
if (!d) return x + "";
var coefficient = d[0],
exponent = d[1];
return exponent < 0 ? "0." + new Array(-exponent).join("0") + coefficient
: coefficient.length > exponent + 1 ? coefficient.slice(0, exponent + 1) + "." + coefficient.slice(exponent + 1)
: coefficient + new Array(exponent - coefficient.length + 2).join("0");
}
var formatTypes = {
"": formatDefault,
"%": function(x, p) { return (x * 100).toFixed(p); },
"b": function(x) { return Math.round(x).toString(2); },
"c": function(x) { return x + ""; },
"d": function(x) { return Math.round(x).toString(10); },
"e": function(x, p) { return x.toExponential(p); },
"f": function(x, p) { return x.toFixed(p); },
"g": function(x, p) { return x.toPrecision(p); },
"o": function(x) { return Math.round(x).toString(8); },
"p": function(x, p) { return formatRounded(x * 100, p); },
"r": formatRounded,
"s": formatPrefixAuto,
"X": function(x) { return Math.round(x).toString(16).toUpperCase(); },
"x": function(x) { return Math.round(x).toString(16); }
};
// [[fill]align][sign][symbol][0][width][,][.precision][type]
var re = /^(?:(.)?([<>=^]))?([+\-\( ])?([$#])?(0)?(\d+)?(,)?(\.\d+)?([a-z%])?$/i;
function formatSpecifier(specifier) {
return new FormatSpecifier(specifier);
}
function FormatSpecifier(specifier) {
if (!(match = re.exec(specifier))) throw new Error("invalid format: " + specifier);
var match,
fill = match[1] || " ",
align = match[2] || ">",
sign = match[3] || "-",
symbol = match[4] || "",
zero = !!match[5],
width = match[6] && +match[6],
comma = !!match[7],
precision = match[8] && +match[8].slice(1),
type = match[9] || "";
// The "n" type is an alias for ",g".
if (type === "n") comma = true, type = "g";
// Map invalid types to the default format.
else if (!formatTypes[type]) type = "";
// If zero fill is specified, padding goes after sign and before digits.
if (zero || (fill === "0" && align === "=")) zero = true, fill = "0", align = "=";
this.fill = fill;
this.align = align;
this.sign = sign;
this.symbol = symbol;
this.zero = zero;
this.width = width;
this.comma = comma;
this.precision = precision;
this.type = type;
}
FormatSpecifier.prototype.toString = function() {
return this.fill
+ this.align
+ this.sign
+ this.symbol
+ (this.zero ? "0" : "")
+ (this.width == null ? "" : Math.max(1, this.width | 0))
+ (this.comma ? "," : "")
+ (this.precision == null ? "" : "." + Math.max(0, this.precision | 0))
+ this.type;
};
var prefixes = ["y","z","a","f","p","n","\xB5","m","","k","M","G","T","P","E","Z","Y"];
function identity$3(x) {
return x;
}
function formatLocale(locale) {
var group = locale.grouping && locale.thousands ? formatGroup(locale.grouping, locale.thousands) : identity$3,
currency = locale.currency,
decimal = locale.decimal;
function newFormat(specifier) {
specifier = formatSpecifier(specifier);
var fill = specifier.fill,
align = specifier.align,
sign = specifier.sign,
symbol = specifier.symbol,
zero = specifier.zero,
width = specifier.width,
comma = specifier.comma,
precision = specifier.precision,
type = specifier.type;
// Compute the prefix and suffix.
// For SI-prefix, the suffix is lazily computed.
var prefix = symbol === "$" ? currency[0] : symbol === "#" && /[boxX]/.test(type) ? "0" + type.toLowerCase() : "",
suffix = symbol === "$" ? currency[1] : /[%p]/.test(type) ? "%" : "";
// What format function should we use?
// Is this an integer type?
// Can this type generate exponential notation?
var formatType = formatTypes[type],
maybeSuffix = !type || /[defgprs%]/.test(type);
// Set the default precision if not specified,
// or clamp the specified precision to the supported range.
// For significant precision, it must be in [1, 21].
// For fixed precision, it must be in [0, 20].
precision = precision == null ? (type ? 6 : 12)
: /[gprs]/.test(type) ? Math.max(1, Math.min(21, precision))
: Math.max(0, Math.min(20, precision));
function format(value) {
var valuePrefix = prefix,
valueSuffix = suffix,
i, n, c;
if (type === "c") {
valueSuffix = formatType(value) + valueSuffix;
value = "";
} else {
value = +value;
// Convert negative to positive, and compute the prefix.
// Note that -0 is not less than 0, but 1 / -0 is!
var valueNegative = (value < 0 || 1 / value < 0) && (value *= -1, true);
// Perform the initial formatting.
value = formatType(value, precision);
// If the original value was negative, it may be rounded to zero during
// formatting; treat this as (positive) zero.
if (valueNegative) {
i = -1, n = value.length;
valueNegative = false;
while (++i < n) {
if (c = value.charCodeAt(i), (48 < c && c < 58)
|| (type === "x" && 96 < c && c < 103)
|| (type === "X" && 64 < c && c < 71)) {
valueNegative = true;
break;
}
}
}
// Compute the prefix and suffix.
valuePrefix = (valueNegative ? (sign === "(" ? sign : "-") : sign === "-" || sign === "(" ? "" : sign) + valuePrefix;
valueSuffix = valueSuffix + (type === "s" ? prefixes[8 + prefixExponent / 3] : "") + (valueNegative && sign === "(" ? ")" : "");
// Break the formatted value into the integer “value” part that can be
// grouped, and fractional or exponential “suffix” part that is not.
if (maybeSuffix) {
i = -1, n = value.length;
while (++i < n) {
if (c = value.charCodeAt(i), 48 > c || c > 57) {
valueSuffix = (c === 46 ? decimal + value.slice(i + 1) : value.slice(i)) + valueSuffix;
value = value.slice(0, i);
break;
}
}
}
}
// If the fill character is not "0", grouping is applied before padding.
if (comma && !zero) value = group(value, Infinity);
// Compute the padding.
var length = valuePrefix.length + value.length + valueSuffix.length,
padding = length < width ? new Array(width - length + 1).join(fill) : "";
// If the fill character is "0", grouping is applied after padding.
if (comma && zero) value = group(padding + value, padding.length ? width - valueSuffix.length : Infinity), padding = "";
// Reconstruct the final output based on the desired alignment.
switch (align) {
case "<": return valuePrefix + value + valueSuffix + padding;
case "=": return valuePrefix + padding + value + valueSuffix;
case "^": return padding.slice(0, length = padding.length >> 1) + valuePrefix + value + valueSuffix + padding.slice(length);
}
return padding + valuePrefix + value + valueSuffix;
}
format.toString = function() {
return specifier + "";
};
return format;
}
function formatPrefix(specifier, value) {
var f = newFormat((specifier = formatSpecifier(specifier), specifier.type = "f", specifier)),
e = Math.max(-8, Math.min(8, Math.floor(exponent$1(value) / 3))) * 3,
k = Math.pow(10, -e),
prefix = prefixes[8 + e / 3];
return function(value) {
return f(k * value) + prefix;
};
}
return {
format: newFormat,
formatPrefix: formatPrefix
};
}
var locale;
exports.format;
exports.formatPrefix;
defaultLocale({
decimal: ".",
thousands: ",",
grouping: [3],
currency: ["$", ""]
});
function defaultLocale(definition) {
locale = formatLocale(definition);
exports.format = locale.format;
exports.formatPrefix = locale.formatPrefix;
return locale;
}
function precisionFixed(step) {
return Math.max(0, -exponent$1(Math.abs(step)));
}
function precisionPrefix(step, value) {
return Math.max(0, Math.max(-8, Math.min(8, Math.floor(exponent$1(value) / 3))) * 3 - exponent$1(Math.abs(step)));
}
function precisionRound(step, max) {
step = Math.abs(step), max = Math.abs(max) - step;
return Math.max(0, exponent$1(max) - exponent$1(step)) + 1;
}
function localDate(d) {
if (0 <= d.y && d.y < 100) {
var date = new Date(-1, d.m, d.d, d.H, d.M, d.S, d.L);
date.setFullYear(d.y);
return date;
}
return new Date(d.y, d.m, d.d, d.H, d.M, d.S, d.L);
}
function utcDate(d) {
if (0 <= d.y && d.y < 100) {
var date = new Date(Date.UTC(-1, d.m, d.d, d.H, d.M, d.S, d.L));
date.setUTCFullYear(d.y);
return date;
}
return new Date(Date.UTC(d.y, d.m, d.d, d.H, d.M, d.S, d.L));
}
function newYear(y) {
return {y: y, m: 0, d: 1, H: 0, M: 0, S: 0, L: 0};
}
function formatLocale$1(locale) {
var locale_dateTime = locale.dateTime,
locale_date = locale.date,
locale_time = locale.time,
locale_periods = locale.periods,
locale_weekdays = locale.days,
locale_shortWeekdays = locale.shortDays,
locale_months = locale.months,
locale_shortMonths = locale.shortMonths;
var periodRe = formatRe(locale_periods),
periodLookup = formatLookup(locale_periods),
weekdayRe = formatRe(locale_weekdays),
weekdayLookup = formatLookup(locale_weekdays),
shortWeekdayRe = formatRe(locale_shortWeekdays),
shortWeekdayLookup = formatLookup(locale_shortWeekdays),
monthRe = formatRe(locale_months),
monthLookup = formatLookup(locale_months),
shortMonthRe = formatRe(locale_shortMonths),
shortMonthLookup = formatLookup(locale_shortMonths);
var formats = {
"a": formatShortWeekday,
"A": formatWeekday,
"b": formatShortMonth,
"B": formatMonth,
"c": null,
"d": formatDayOfMonth,
"e": formatDayOfMonth,
"H": formatHour24,
"I": formatHour12,
"j": formatDayOfYear,
"L": formatMilliseconds,
"m": formatMonthNumber,
"M": formatMinutes,
"p": formatPeriod,
"S": formatSeconds,
"U": formatWeekNumberSunday,
"w": formatWeekdayNumber,
"W": formatWeekNumberMonday,
"x": null,
"X": null,
"y": formatYear,
"Y": formatFullYear,
"Z": formatZone,
"%": formatLiteralPercent
};
var utcFormats = {
"a": formatUTCShortWeekday,
"A": formatUTCWeekday,
"b": formatUTCShortMonth,
"B": formatUTCMonth,
"c": null,
"d": formatUTCDayOfMonth,
"e": formatUTCDayOfMonth,
"H": formatUTCHour24,
"I": formatUTCHour12,
"j": formatUTCDayOfYear,
"L": formatUTCMilliseconds,
"m": formatUTCMonthNumber,
"M": formatUTCMinutes,
"p": formatUTCPeriod,
"S": formatUTCSeconds,
"U": formatUTCWeekNumberSunday,
"w": formatUTCWeekdayNumber,
"W": formatUTCWeekNumberMonday,
"x": null,
"X": null,
"y": formatUTCYear,
"Y": formatUTCFullYear,
"Z": formatUTCZone,
"%": formatLiteralPercent
};
var parses = {
"a": parseShortWeekday,
"A": parseWeekday,
"b": parseShortMonth,
"B": parseMonth,
"c": parseLocaleDateTime,
"d": parseDayOfMonth,
"e": parseDayOfMonth,
"H": parseHour24,
"I": parseHour24,
"j": parseDayOfYear,
"L": parseMilliseconds,
"m": parseMonthNumber,
"M": parseMinutes,
"p": parsePeriod,
"S": parseSeconds,
"U": parseWeekNumberSunday,
"w": parseWeekdayNumber,
"W": parseWeekNumberMonday,
"x": parseLocaleDate,
"X": parseLocaleTime,
"y": parseYear,
"Y": parseFullYear,
"Z": parseZone,
"%": parseLiteralPercent
};
// These recursive directive definitions must be deferred.
formats.x = newFormat(locale_date, formats);
formats.X = newFormat(locale_time, formats);
formats.c = newFormat(locale_dateTime, formats);
utcFormats.x = newFormat(locale_date, utcFormats);
utcFormats.X = newFormat(locale_time, utcFormats);
utcFormats.c = newFormat(locale_dateTime, utcFormats);
function newFormat(specifier, formats) {
return function(date) {
var string = [],
i = -1,
j = 0,
n = specifier.length,
c,
pad,
format;
if (!(date instanceof Date)) date = new Date(+date);
while (++i < n) {
if (specifier.charCodeAt(i) === 37) {
string.push(specifier.slice(j, i));
if ((pad = pads[c = specifier.charAt(++i)]) != null) c = specifier.charAt(++i);
else pad = c === "e" ? " " : "0";
if (format = formats[c]) c = format(date, pad);
string.push(c);
j = i + 1;
}
}
string.push(specifier.slice(j, i));
return string.join("");
};
}
function newParse(specifier, newDate) {
return function(string) {
var d = newYear(1900),
i = parseSpecifier(d, specifier, string += "", 0);
if (i != string.length) return null;
// The am-pm flag is 0 for AM, and 1 for PM.
if ("p" in d) d.H = d.H % 12 + d.p * 12;
// Convert day-of-week and week-of-year to day-of-year.
if ("W" in d || "U" in d) {
if (!("w" in d)) d.w = "W" in d ? 1 : 0;
var day = "Z" in d ? utcDate(newYear(d.y)).getUTCDay() : newDate(newYear(d.y)).getDay();
d.m = 0;
d.d = "W" in d ? (d.w + 6) % 7 + d.W * 7 - (day + 5) % 7 : d.w + d.U * 7 - (day + 6) % 7;
}
// If a time zone is specified, all fields are interpreted as UTC and then
// offset according to the specified time zone.
if ("Z" in d) {
d.H += d.Z / 100 | 0;
d.M += d.Z % 100;
return utcDate(d);
}
// Otherwise, all fields are in local time.
return newDate(d);
};
}
function parseSpecifier(d, specifier, string, j) {
var i = 0,
n = specifier.length,
m = string.length,
c,
parse;
while (i < n) {
if (j >= m) return -1;
c = specifier.charCodeAt(i++);
if (c === 37) {
c = specifier.charAt(i++);
parse = parses[c in pads ? specifier.charAt(i++) : c];
if (!parse || ((j = parse(d, string, j)) < 0)) return -1;
} else if (c != string.charCodeAt(j++)) {
return -1;
}
}
return j;
}
function parsePeriod(d, string, i) {
var n = periodRe.exec(string.slice(i));
return n ? (d.p = periodLookup[n[0].toLowerCase()], i + n[0].length) : -1;
}
function parseShortWeekday(d, string, i) {
var n = shortWeekdayRe.exec(string.slice(i));
return n ? (d.w = shortWeekdayLookup[n[0].toLowerCase()], i + n[0].length) : -1;
}
function parseWeekday(d, string, i) {
var n = weekdayRe.exec(string.slice(i));
return n ? (d.w = weekdayLookup[n[0].toLowerCase()], i + n[0].length) : -1;
}
function parseShortMonth(d, string, i) {
var n = shortMonthRe.exec(string.slice(i));
return n ? (d.m = shortMonthLookup[n[0].toLowerCase()], i + n[0].length) : -1;
}
function parseMonth(d, string, i) {
var n = monthRe.exec(string.slice(i));
return n ? (d.m = monthLookup[n[0].toLowerCase()], i + n[0].length) : -1;
}
function parseLocaleDateTime(d, string, i) {
return parseSpecifier(d, locale_dateTime, string, i);
}
function parseLocaleDate(d, string, i) {
return parseSpecifier(d, locale_date, string, i);
}
function parseLocaleTime(d, string, i) {
return parseSpecifier(d, locale_time, string, i);
}
function formatShortWeekday(d) {
return locale_shortWeekdays[d.getDay()];
}
function formatWeekday(d) {
return locale_weekdays[d.getDay()];
}
function formatShortMonth(d) {
return locale_shortMonths[d.getMonth()];
}
function formatMonth(d) {
return locale_months[d.getMonth()];
}
function formatPeriod(d) {
return locale_periods[+(d.getHours() >= 12)];
}
function formatUTCShortWeekday(d) {
return locale_shortWeekdays[d.getUTCDay()];
}
function formatUTCWeekday(d) {
return locale_weekdays[d.getUTCDay()];
}
function formatUTCShortMonth(d) {
return locale_shortMonths[d.getUTCMonth()];
}
function formatUTCMonth(d) {
return locale_months[d.getUTCMonth()];
}
function formatUTCPeriod(d) {
return locale_periods[+(d.getUTCHours() >= 12)];
}
return {
format: function(specifier) {
var f = newFormat(specifier += "", formats);
f.toString = function() { return specifier; };
return f;
},
parse: function(specifier) {
var p = newParse(specifier += "", localDate);
p.toString = function() { return specifier; };
return p;
},
utcFormat: function(specifier) {
var f = newFormat(specifier += "", utcFormats);
f.toString = function() { return specifier; };
return f;
},
utcParse: function(specifier) {
var p = newParse(specifier, utcDate);
p.toString = function() { return specifier; };
return p;
}
};
}
var pads = {"-": "", "_": " ", "0": "0"};
var numberRe = /^\s*\d+/;
var percentRe = /^%/;
var requoteRe = /[\\\^\$\*\+\?\|\[\]\(\)\.\{\}]/g;
function pad(value, fill, width) {
var sign = value < 0 ? "-" : "",
string = (sign ? -value : value) + "",
length = string.length;
return sign + (length < width ? new Array(width - length + 1).join(fill) + string : string);
}
function requote(s) {
return s.replace(requoteRe, "\\$&");
}
function formatRe(names) {
return new RegExp("^(?:" + names.map(requote).join("|") + ")", "i");
}
function formatLookup(names) {
var map = {}, i = -1, n = names.length;
while (++i < n) map[names[i].toLowerCase()] = i;
return map;
}
function parseWeekdayNumber(d, string, i) {
var n = numberRe.exec(string.slice(i, i + 1));
return n ? (d.w = +n[0], i + n[0].length) : -1;
}
function parseWeekNumberSunday(d, string, i) {
var n = numberRe.exec(string.slice(i));
return n ? (d.U = +n[0], i + n[0].length) : -1;
}
function parseWeekNumberMonday(d, string, i) {
var n = numberRe.exec(string.slice(i));
return n ? (d.W = +n[0], i + n[0].length) : -1;
}
function parseFullYear(d, string, i) {
var n = numberRe.exec(string.slice(i, i + 4));
return n ? (d.y = +n[0], i + n[0].length) : -1;
}
function parseYear(d, string, i) {
var n = numberRe.exec(string.slice(i, i + 2));
return n ? (d.y = +n[0] + (+n[0] > 68 ? 1900 : 2000), i + n[0].length) : -1;
}
function parseZone(d, string, i) {
var n = /^(Z)|([+-]\d\d)(?:\:?(\d\d))?/.exec(string.slice(i, i + 6));
return n ? (d.Z = n[1] ? 0 : -(n[2] + (n[3] || "00")), i + n[0].length) : -1;
}
function parseMonthNumber(d, string, i) {
var n = numberRe.exec(string.slice(i, i + 2));
return n ? (d.m = n[0] - 1, i + n[0].length) : -1;
}
function parseDayOfMonth(d, string, i) {
var n = numberRe.exec(string.slice(i, i + 2));
return n ? (d.d = +n[0], i + n[0].length) : -1;
}
function parseDayOfYear(d, string, i) {
var n = numberRe.exec(string.slice(i, i + 3));
return n ? (d.m = 0, d.d = +n[0], i + n[0].length) : -1;
}
function parseHour24(d, string, i) {
var n = numberRe.exec(string.slice(i, i + 2));
return n ? (d.H = +n[0], i + n[0].length) : -1;
}
function parseMinutes(d, string, i) {
var n = numberRe.exec(string.slice(i, i + 2));
return n ? (d.M = +n[0], i + n[0].length) : -1;
}
function parseSeconds(d, string, i) {
var n = numberRe.exec(string.slice(i, i + 2));
return n ? (d.S = +n[0], i + n[0].length) : -1;
}
function parseMilliseconds(d, string, i) {
var n = numberRe.exec(string.slice(i, i + 3));
return n ? (d.L = +n[0], i + n[0].length) : -1;
}
function parseLiteralPercent(d, string, i) {
var n = percentRe.exec(string.slice(i, i + 1));
return n ? i + n[0].length : -1;
}
function formatDayOfMonth(d, p) {
return pad(d.getDate(), p, 2);
}
function formatHour24(d, p) {
return pad(d.getHours(), p, 2);
}
function formatHour12(d, p) {
return pad(d.getHours() % 12 || 12, p, 2);
}
function formatDayOfYear(d, p) {
return pad(1 + day.count(year(d), d), p, 3);
}
function formatMilliseconds(d, p) {
return pad(d.getMilliseconds(), p, 3);
}
function formatMonthNumber(d, p) {
return pad(d.getMonth() + 1, p, 2);
}
function formatMinutes(d, p) {
return pad(d.getMinutes(), p, 2);
}
function formatSeconds(d, p) {
return pad(d.getSeconds(), p, 2);
}
function formatWeekNumberSunday(d, p) {
return pad(timeWeek.count(year(d), d), p, 2);
}
function formatWeekdayNumber(d) {
return d.getDay();
}
function formatWeekNumberMonday(d, p) {
return pad(timeMonday.count(year(d), d), p, 2);
}
function formatYear(d, p) {
return pad(d.getFullYear() % 100, p, 2);
}
function formatFullYear(d, p) {
return pad(d.getFullYear() % 10000, p, 4);
}
function formatZone(d) {
var z = d.getTimezoneOffset();
return (z > 0 ? "-" : (z *= -1, "+"))
+ pad(z / 60 | 0, "0", 2)
+ pad(z % 60, "0", 2);
}
function formatUTCDayOfMonth(d, p) {
return pad(d.getUTCDate(), p, 2);
}
function formatUTCHour24(d, p) {
return pad(d.getUTCHours(), p, 2);
}
function formatUTCHour12(d, p) {
return pad(d.getUTCHours() % 12 || 12, p, 2);
}
function formatUTCDayOfYear(d, p) {
return pad(1 + utcDay.count(utcYear(d), d), p, 3);
}
function formatUTCMilliseconds(d, p) {
return pad(d.getUTCMilliseconds(), p, 3);
}
function formatUTCMonthNumber(d, p) {
return pad(d.getUTCMonth() + 1, p, 2);
}
function formatUTCMinutes(d, p) {
return pad(d.getUTCMinutes(), p, 2);
}
function formatUTCSeconds(d, p) {
return pad(d.getUTCSeconds(), p, 2);
}
function formatUTCWeekNumberSunday(d, p) {
return pad(utcWeek.count(utcYear(d), d), p, 2);
}
function formatUTCWeekdayNumber(d) {
return d.getUTCDay();
}
function formatUTCWeekNumberMonday(d, p) {
return pad(utcMonday.count(utcYear(d), d), p, 2);
}
function formatUTCYear(d, p) {
return pad(d.getUTCFullYear() % 100, p, 2);
}
function formatUTCFullYear(d, p) {
return pad(d.getUTCFullYear() % 10000, p, 4);
}
function formatUTCZone() {
return "+0000";
}
function formatLiteralPercent() {
return "%";
}
var locale$1;
exports.timeFormat;
exports.timeParse;
exports.utcFormat;
exports.utcParse;
defaultLocale$1({
dateTime: "%x, %X",
date: "%-m/%-d/%Y",
time: "%-I:%M:%S %p",
periods: ["AM", "PM"],
days: ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"],
shortDays: ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"],
months: ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"],
shortMonths: ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"]
});
function defaultLocale$1(definition) {
locale$1 = formatLocale$1(definition);
exports.timeFormat = locale$1.format;
exports.timeParse = locale$1.parse;
exports.utcFormat = locale$1.utcFormat;
exports.utcParse = locale$1.utcParse;
return locale$1;
}
var isoSpecifier = "%Y-%m-%dT%H:%M:%S.%LZ";
function formatIsoNative(date) {
return date.toISOString();
}
var formatIso = Date.prototype.toISOString
? formatIsoNative
: exports.utcFormat(isoSpecifier);
function parseIsoNative(string) {
var date = new Date(string);
return isNaN(date) ? null : date;
}
var parseIso = +new Date("2000-01-01T00:00:00.000Z")
? parseIsoNative
: exports.utcParse(isoSpecifier);
var array$2 = Array.prototype;
var map$2 = array$2.map;
var slice$3 = array$2.slice;
var implicit = {name: "implicit"};
function ordinal(range) {
var index = map$1(),
domain = [],
unknown = implicit;
range = range == null ? [] : slice$3.call(range);
function scale(d) {
var key = d + "", i = index.get(key);
if (!i) {
if (unknown !== implicit) return unknown;
index.set(key, i = domain.push(d));
}
return range[(i - 1) % range.length];
}
scale.domain = function(_) {
if (!arguments.length) return domain.slice();
domain = [], index = map$1();
var i = -1, n = _.length, d, key;
while (++i < n) if (!index.has(key = (d = _[i]) + "")) index.set(key, domain.push(d));
return scale;
};
scale.range = function(_) {
return arguments.length ? (range = slice$3.call(_), scale) : range.slice();
};
scale.unknown = function(_) {
return arguments.length ? (unknown = _, scale) : unknown;
};
scale.copy = function() {
return ordinal()
.domain(domain)
.range(range)
.unknown(unknown);
};
return scale;
}
function band() {
var scale = ordinal().unknown(undefined),
domain = scale.domain,
ordinalRange = scale.range,
range$$ = [0, 1],
step,
bandwidth,
round = false,
paddingInner = 0,
paddingOuter = 0,
align = 0.5;
delete scale.unknown;
function rescale() {
var n = domain().length,
reverse = range$$[1] < range$$[0],
start = range$$[reverse - 0],
stop = range$$[1 - reverse];
step = (stop - start) / Math.max(1, n - paddingInner + paddingOuter * 2);
if (round) step = Math.floor(step);
start += (stop - start - step * (n - paddingInner)) * align;
bandwidth = step * (1 - paddingInner);
if (round) start = Math.round(start), bandwidth = Math.round(bandwidth);
var values = range(n).map(function(i) { return start + step * i; });
return ordinalRange(reverse ? values.reverse() : values);
}
scale.domain = function(_) {
return arguments.length ? (domain(_), rescale()) : domain();
};
scale.range = function(_) {
return arguments.length ? (range$$ = [+_[0], +_[1]], rescale()) : range$$.slice();
};
scale.rangeRound = function(_) {
return range$$ = [+_[0], +_[1]], round = true, rescale();
};
scale.bandwidth = function() {
return bandwidth;
};
scale.step = function() {
return step;
};
scale.round = function(_) {
return arguments.length ? (round = !!_, rescale()) : round;
};
scale.padding = function(_) {
return arguments.length ? (paddingInner = paddingOuter = Math.max(0, Math.min(1, _)), rescale()) : paddingInner;
};
scale.paddingInner = function(_) {
return arguments.length ? (paddingInner = Math.max(0, Math.min(1, _)), rescale()) : paddingInner;
};
scale.paddingOuter = function(_) {
return arguments.length ? (paddingOuter = Math.max(0, Math.min(1, _)), rescale()) : paddingOuter;
};
scale.align = function(_) {
return arguments.length ? (align = Math.max(0, Math.min(1, _)), rescale()) : align;
};
scale.copy = function() {
return band()
.domain(domain())
.range(range$$)
.round(round)
.paddingInner(paddingInner)
.paddingOuter(paddingOuter)
.align(align);
};
return rescale();
}
function pointish(scale) {
var copy = scale.copy;
scale.padding = scale.paddingOuter;
delete scale.paddingInner;
delete scale.paddingOuter;
scale.copy = function() {
return pointish(copy());
};
return scale;
}
function point$4() {
return pointish(band().paddingInner(1));
}
function constant$3(x) {
return function() {
return x;
};
}
function number$1(x) {
return +x;
}
var unit = [0, 1];
function deinterpolate(a, b) {
return (b -= (a = +a))
? function(x) { return (x - a) / b; }
: constant$3(b);
}
function deinterpolateClamp(deinterpolate) {
return function(a, b) {
var d = deinterpolate(a = +a, b = +b);
return function(x) { return x <= a ? 0 : x >= b ? 1 : d(x); };
};
}
function reinterpolateClamp(reinterpolate) {
return function(a, b) {
var r = reinterpolate(a = +a, b = +b);
return function(t) { return t <= 0 ? a : t >= 1 ? b : r(t); };
};
}
function bimap(domain, range, deinterpolate, reinterpolate) {
var d0 = domain[0], d1 = domain[1], r0 = range[0], r1 = range[1];
if (d1 < d0) d0 = deinterpolate(d1, d0), r0 = reinterpolate(r1, r0);
else d0 = deinterpolate(d0, d1), r0 = reinterpolate(r0, r1);
return function(x) { return r0(d0(x)); };
}
function polymap(domain, range, deinterpolate, reinterpolate) {
var j = Math.min(domain.length, range.length) - 1,
d = new Array(j),
r = new Array(j),
i = -1;
// Reverse descending domains.
if (domain[j] < domain[0]) {
domain = domain.slice().reverse();
range = range.slice().reverse();
}
while (++i < j) {
d[i] = deinterpolate(domain[i], domain[i + 1]);
r[i] = reinterpolate(range[i], range[i + 1]);
}
return function(x) {
var i = bisectRight(domain, x, 1, j) - 1;
return r[i](d[i](x));
};
}
function copy(source, target) {
return target
.domain(source.domain())
.range(source.range())
.interpolate(source.interpolate())
.clamp(source.clamp());
}
// deinterpolate(a, b)(x) takes a domain value x in [a,b] and returns the corresponding parameter t in [0,1].
// reinterpolate(a, b)(t) takes a parameter t in [0,1] and returns the corresponding domain value x in [a,b].
function continuous(deinterpolate$$, reinterpolate) {
var domain = unit,
range = unit,
interpolate$$ = interpolate,
clamp = false,
piecewise,
output,
input;
function rescale() {
piecewise = Math.min(domain.length, range.length) > 2 ? polymap : bimap;
output = input = null;
return scale;
}
function scale(x) {
return (output || (output = piecewise(domain, range, clamp ? deinterpolateClamp(deinterpolate$$) : deinterpolate$$, interpolate$$)))(+x);
}
scale.invert = function(y) {
return (input || (input = piecewise(range, domain, deinterpolate, clamp ? reinterpolateClamp(reinterpolate) : reinterpolate)))(+y);
};
scale.domain = function(_) {
return arguments.length ? (domain = map$2.call(_, number$1), rescale()) : domain.slice();
};
scale.range = function(_) {
return arguments.length ? (range = slice$3.call(_), rescale()) : range.slice();
};
scale.rangeRound = function(_) {
return range = slice$3.call(_), interpolate$$ = interpolateRound, rescale();
};
scale.clamp = function(_) {
return arguments.length ? (clamp = !!_, rescale()) : clamp;
};
scale.interpolate = function(_) {
return arguments.length ? (interpolate$$ = _, rescale()) : interpolate$$;
};
return rescale();
}
function tickFormat(domain, count, specifier) {
var start = domain[0],
stop = domain[domain.length - 1],
step = tickStep(start, stop, count == null ? 10 : count),
precision;
specifier = formatSpecifier(specifier == null ? ",f" : specifier);
switch (specifier.type) {
case "s": {
var value = Math.max(Math.abs(start), Math.abs(stop));
if (specifier.precision == null && !isNaN(precision = precisionPrefix(step, value))) specifier.precision = precision;
return exports.formatPrefix(specifier, value);
}
case "":
case "e":
case "g":
case "p":
case "r": {
if (specifier.precision == null && !isNaN(precision = precisionRound(step, Math.max(Math.abs(start), Math.abs(stop))))) specifier.precision = precision - (specifier.type === "e");
break;
}
case "f":
case "%": {
if (specifier.precision == null && !isNaN(precision = precisionFixed(step))) specifier.precision = precision - (specifier.type === "%") * 2;
break;
}
}
return exports.format(specifier);
}
function linearish(scale) {
var domain = scale.domain;
scale.ticks = function(count) {
var d = domain();
return ticks(d[0], d[d.length - 1], count == null ? 10 : count);
};
scale.tickFormat = function(count, specifier) {
return tickFormat(domain(), count, specifier);
};
scale.nice = function(count) {
var d = domain(),
i = d.length - 1,
n = count == null ? 10 : count,
start = d[0],
stop = d[i],
step = tickStep(start, stop, n);
if (step) {
step = tickStep(Math.floor(start / step) * step, Math.ceil(stop / step) * step, n);
d[0] = Math.floor(start / step) * step;
d[i] = Math.ceil(stop / step) * step;
domain(d);
}
return scale;
};
return scale;
}
function linear$2() {
var scale = continuous(deinterpolate, interpolateNumber);
scale.copy = function() {
return copy(scale, linear$2());
};
return linearish(scale);
}
function identity$4() {
var domain = [0, 1];
function scale(x) {
return +x;
}
scale.invert = scale;
scale.domain = scale.range = function(_) {
return arguments.length ? (domain = map$2.call(_, number$1), scale) : domain.slice();
};
scale.copy = function() {
return identity$4().domain(domain);
};
return linearish(scale);
}
function nice(domain, interval) {
domain = domain.slice();
var i0 = 0,
i1 = domain.length - 1,
x0 = domain[i0],
x1 = domain[i1],
t;
if (x1 < x0) {
t = i0, i0 = i1, i1 = t;
t = x0, x0 = x1, x1 = t;
}
domain[i0] = interval.floor(x0);
domain[i1] = interval.ceil(x1);
return domain;
}
function deinterpolate$1(a, b) {
return (b = Math.log(b / a))
? function(x) { return Math.log(x / a) / b; }
: constant$3(b);
}
function reinterpolate(a, b) {
return a < 0
? function(t) { return -Math.pow(-b, t) * Math.pow(-a, 1 - t); }
: function(t) { return Math.pow(b, t) * Math.pow(a, 1 - t); };
}
function pow10(x) {
return isFinite(x) ? +("1e" + x) : x < 0 ? 0 : x;
}
function powp(base) {
return base === 10 ? pow10
: base === Math.E ? Math.exp
: function(x) { return Math.pow(base, x); };
}
function logp(base) {
return base === Math.E ? Math.log
: base === 10 && Math.log10
|| base === 2 && Math.log2
|| (base = Math.log(base), function(x) { return Math.log(x) / base; });
}
function reflect(f) {
return function(x) {
return -f(-x);
};
}
function log() {
var scale = continuous(deinterpolate$1, reinterpolate).domain([1, 10]),
domain = scale.domain,
base = 10,
logs = logp(10),
pows = powp(10);
function rescale() {
logs = logp(base), pows = powp(base);
if (domain()[0] < 0) logs = reflect(logs), pows = reflect(pows);
return scale;
}
scale.base = function(_) {
return arguments.length ? (base = +_, rescale()) : base;
};
scale.domain = function(_) {
return arguments.length ? (domain(_), rescale()) : domain();
};
scale.ticks = function(count) {
var d = domain(),
u = d[0],
v = d[d.length - 1],
r;
if (r = v < u) i = u, u = v, v = i;
var i = logs(u),
j = logs(v),
p,
k,
t,
n = count == null ? 10 : +count,
z = [];
if (!(base % 1) && j - i < n) {
i = Math.round(i) - 1, j = Math.round(j) + 1;
if (u > 0) for (; i < j; ++i) {
for (k = 1, p = pows(i); k < base; ++k) {
t = p * k;
if (t < u) continue;
if (t > v) break;
z.push(t);
}
} else for (; i < j; ++i) {
for (k = base - 1, p = pows(i); k >= 1; --k) {
t = p * k;
if (t < u) continue;
if (t > v) break;
z.push(t);
}
}
} else {
z = ticks(i, j, Math.min(j - i, n)).map(pows);
}
return r ? z.reverse() : z;
};
scale.tickFormat = function(count, specifier) {
if (specifier == null) specifier = base === 10 ? ".0e" : ",";
if (typeof specifier !== "function") specifier = exports.format(specifier);
if (count === Infinity) return specifier;
if (count == null) count = 10;
var k = Math.max(1, base * count / scale.ticks().length); // TODO fast estimate?
return function(d) {
var i = d / pows(Math.round(logs(d)));
if (i * base < base - 0.5) i *= base;
return i <= k ? specifier(d) : "";
};
};
scale.nice = function() {
return domain(nice(domain(), {
floor: function(x) { return pows(Math.floor(logs(x))); },
ceil: function(x) { return pows(Math.ceil(logs(x))); }
}));
};
scale.copy = function() {
return copy(scale, log().base(base));
};
return scale;
}
function raise(x, exponent) {
return x < 0 ? -Math.pow(-x, exponent) : Math.pow(x, exponent);
}
function pow() {
var exponent = 1,
scale = continuous(deinterpolate, reinterpolate),
domain = scale.domain;
function deinterpolate(a, b) {
return (b = raise(b, exponent) - (a = raise(a, exponent)))
? function(x) { return (raise(x, exponent) - a) / b; }
: constant$3(b);
}
function reinterpolate(a, b) {
b = raise(b, exponent) - (a = raise(a, exponent));
return function(t) { return raise(a + b * t, 1 / exponent); };
}
scale.exponent = function(_) {
return arguments.length ? (exponent = +_, domain(domain())) : exponent;
};
scale.copy = function() {
return copy(scale, pow().exponent(exponent));
};
return linearish(scale);
}
function sqrt() {
return pow().exponent(0.5);
}
function quantile() {
var domain = [],
range = [],
thresholds = [];
function rescale() {
var i = 0, n = Math.max(1, range.length);
thresholds = new Array(n - 1);
while (++i < n) thresholds[i - 1] = threshold(domain, i / n);
return scale;
}
function scale(x) {
if (!isNaN(x = +x)) return range[bisectRight(thresholds, x)];
}
scale.invertExtent = function(y) {
var i = range.indexOf(y);
return i < 0 ? [NaN, NaN] : [
i > 0 ? thresholds[i - 1] : domain[0],
i < thresholds.length ? thresholds[i] : domain[domain.length - 1]
];
};
scale.domain = function(_) {
if (!arguments.length) return domain.slice();
domain = [];
for (var i = 0, n = _.length, d; i < n; ++i) if (d = _[i], d != null && !isNaN(d = +d)) domain.push(d);
domain.sort(ascending);
return rescale();
};
scale.range = function(_) {
return arguments.length ? (range = slice$3.call(_), rescale()) : range.slice();
};
scale.quantiles = function() {
return thresholds.slice();
};
scale.copy = function() {
return quantile()
.domain(domain)
.range(range);
};
return scale;
}
function quantize$1() {
var x0 = 0,
x1 = 1,
n = 1,
domain = [0.5],
range = [0, 1];
function scale(x) {
if (x <= x) return range[bisectRight(domain, x, 0, n)];
}
function rescale() {
var i = -1;
domain = new Array(n);
while (++i < n) domain[i] = ((i + 1) * x1 - (i - n) * x0) / (n + 1);
return scale;
}
scale.domain = function(_) {
return arguments.length ? (x0 = +_[0], x1 = +_[1], rescale()) : [x0, x1];
};
scale.range = function(_) {
return arguments.length ? (n = (range = slice$3.call(_)).length - 1, rescale()) : range.slice();
};
scale.invertExtent = function(y) {
var i = range.indexOf(y);
return i < 0 ? [NaN, NaN]
: i < 1 ? [x0, domain[0]]
: i >= n ? [domain[n - 1], x1]
: [domain[i - 1], domain[i]];
};
scale.copy = function() {
return quantize$1()
.domain([x0, x1])
.range(range);
};
return linearish(scale);
}
function threshold$1() {
var domain = [0.5],
range = [0, 1],
n = 1;
function scale(x) {
if (x <= x) return range[bisectRight(domain, x, 0, n)];
}
scale.domain = function(_) {
return arguments.length ? (domain = slice$3.call(_), n = Math.min(domain.length, range.length - 1), scale) : domain.slice();
};
scale.range = function(_) {
return arguments.length ? (range = slice$3.call(_), n = Math.min(domain.length, range.length - 1), scale) : range.slice();
};
scale.invertExtent = function(y) {
var i = range.indexOf(y);
return [domain[i - 1], domain[i]];
};
scale.copy = function() {
return threshold$1()
.domain(domain)
.range(range);
};
return scale;
}
var durationSecond$1 = 1000;
var durationMinute$1 = durationSecond$1 * 60;
var durationHour$1 = durationMinute$1 * 60;
var durationDay$1 = durationHour$1 * 24;
var durationWeek$1 = durationDay$1 * 7;
var durationMonth = durationDay$1 * 30;
var durationYear = durationDay$1 * 365;
function date$1(t) {
return new Date(t);
}
function number$2(t) {
return t instanceof Date ? +t : +new Date(+t);
}
function calendar(year, month, week, day, hour, minute, second, millisecond, format) {
var scale = continuous(deinterpolate, interpolateNumber),
invert = scale.invert,
domain = scale.domain;
var formatMillisecond = format(".%L"),
formatSecond = format(":%S"),
formatMinute = format("%I:%M"),
formatHour = format("%I %p"),
formatDay = format("%a %d"),
formatWeek = format("%b %d"),
formatMonth = format("%B"),
formatYear = format("%Y");
var tickIntervals = [
[second, 1, durationSecond$1],
[second, 5, 5 * durationSecond$1],
[second, 15, 15 * durationSecond$1],
[second, 30, 30 * durationSecond$1],
[minute, 1, durationMinute$1],
[minute, 5, 5 * durationMinute$1],
[minute, 15, 15 * durationMinute$1],
[minute, 30, 30 * durationMinute$1],
[ hour, 1, durationHour$1 ],
[ hour, 3, 3 * durationHour$1 ],
[ hour, 6, 6 * durationHour$1 ],
[ hour, 12, 12 * durationHour$1 ],
[ day, 1, durationDay$1 ],
[ day, 2, 2 * durationDay$1 ],
[ week, 1, durationWeek$1 ],
[ month, 1, durationMonth ],
[ month, 3, 3 * durationMonth ],
[ year, 1, durationYear ]
];
function tickFormat(date) {
return (second(date) < date ? formatMillisecond
: minute(date) < date ? formatSecond
: hour(date) < date ? formatMinute
: day(date) < date ? formatHour
: month(date) < date ? (week(date) < date ? formatDay : formatWeek)
: year(date) < date ? formatMonth
: formatYear)(date);
}
function tickInterval(interval, start, stop, step) {
if (interval == null) interval = 10;
// If a desired tick count is specified, pick a reasonable tick interval
// based on the extent of the domain and a rough estimate of tick size.
// Otherwise, assume interval is already a time interval and use it.
if (typeof interval === "number") {
var target = Math.abs(stop - start) / interval,
i = bisector(function(i) { return i[2]; }).right(tickIntervals, target);
if (i === tickIntervals.length) {
step = tickStep(start / durationYear, stop / durationYear, interval);
interval = year;
} else if (i) {
i = tickIntervals[target / tickIntervals[i - 1][2] < tickIntervals[i][2] / target ? i - 1 : i];
step = i[1];
interval = i[0];
} else {
step = tickStep(start, stop, interval);
interval = millisecond;
}
}
return step == null ? interval : interval.every(step);
}
scale.invert = function(y) {
return new Date(invert(y));
};
scale.domain = function(_) {
return arguments.length ? domain(map$2.call(_, number$2)) : domain().map(date$1);
};
scale.ticks = function(interval, step) {
var d = domain(),
t0 = d[0],
t1 = d[d.length - 1],
r = t1 < t0,
t;
if (r) t = t0, t0 = t1, t1 = t;
t = tickInterval(interval, t0, t1, step);
t = t ? t.range(t0, t1 + 1) : []; // inclusive stop
return r ? t.reverse() : t;
};
scale.tickFormat = function(count, specifier) {
return specifier == null ? tickFormat : format(specifier);
};
scale.nice = function(interval, step) {
var d = domain();
return (interval = tickInterval(interval, d[0], d[d.length - 1], step))
? domain(nice(d, interval))
: scale;
};
scale.copy = function() {
return copy(scale, calendar(year, month, week, day, hour, minute, second, millisecond, format));
};
return scale;
}
function time() {
return calendar(year, month, timeWeek, day, hour, minute, second, millisecond, exports.timeFormat).domain([new Date(2000, 0, 1), new Date(2000, 0, 2)]);
}
function utcTime() {
return calendar(utcYear, utcMonth, utcWeek, utcDay, utcHour, utcMinute, second, millisecond, exports.utcFormat).domain([Date.UTC(2000, 0, 1), Date.UTC(2000, 0, 2)]);
}
function colors(s) {
return s.match(/.{6}/g).map(function(x) {
return "#" + x;
});
}
var category10 = colors("1f77b4ff7f0e2ca02cd627289467bd8c564be377c27f7f7fbcbd2217becf");
var category20b = colors("393b795254a36b6ecf9c9ede6379398ca252b5cf6bcedb9c8c6d31bd9e39e7ba52e7cb94843c39ad494ad6616be7969c7b4173a55194ce6dbdde9ed6");
var category20c = colors("3182bd6baed69ecae1c6dbefe6550dfd8d3cfdae6bfdd0a231a35474c476a1d99bc7e9c0756bb19e9ac8bcbddcdadaeb636363969696bdbdbdd9d9d9");
var category20 = colors("1f77b4aec7e8ff7f0effbb782ca02c98df8ad62728ff98969467bdc5b0d58c564bc49c94e377c2f7b6d27f7f7fc7c7c7bcbd22dbdb8d17becf9edae5");
var cubehelix$3 = interpolateCubehelixLong(cubehelix(300, 0.5, 0.0), cubehelix(-240, 0.5, 1.0));
var warm = interpolateCubehelixLong(cubehelix(-100, 0.75, 0.35), cubehelix(80, 1.50, 0.8));
var cool = interpolateCubehelixLong(cubehelix(260, 0.75, 0.35), cubehelix(80, 1.50, 0.8));
var rainbow = cubehelix();
function rainbow$1(t) {
if (t < 0 || t > 1) t -= Math.floor(t);
var ts = Math.abs(t - 0.5);
rainbow.h = 360 * t - 100;
rainbow.s = 1.5 - 1.5 * ts;
rainbow.l = 0.8 - 0.9 * ts;
return rainbow + "";
}
function ramp(range) {
var n = range.length;
return function(t) {
return range[Math.max(0, Math.min(n - 1, Math.floor(t * n)))];
};
}
var viridis = ramp(colors("44015444025645045745055946075a46085c460a5d460b5e470d60470e6147106347116447136548146748166848176948186a481a6c481b6d481c6e481d6f481f70482071482173482374482475482576482677482878482979472a7a472c7a472d7b472e7c472f7d46307e46327e46337f463480453581453781453882443983443a83443b84433d84433e85423f854240864241864142874144874045884046883f47883f48893e49893e4a893e4c8a3d4d8a3d4e8a3c4f8a3c508b3b518b3b528b3a538b3a548c39558c39568c38588c38598c375a8c375b8d365c8d365d8d355e8d355f8d34608d34618d33628d33638d32648e32658e31668e31678e31688e30698e306a8e2f6b8e2f6c8e2e6d8e2e6e8e2e6f8e2d708e2d718e2c718e2c728e2c738e2b748e2b758e2a768e2a778e2a788e29798e297a8e297b8e287c8e287d8e277e8e277f8e27808e26818e26828e26828e25838e25848e25858e24868e24878e23888e23898e238a8d228b8d228c8d228d8d218e8d218f8d21908d21918c20928c20928c20938c1f948c1f958b1f968b1f978b1f988b1f998a1f9a8a1e9b8a1e9c891e9d891f9e891f9f881fa0881fa1881fa1871fa28720a38620a48621a58521a68522a78522a88423a98324aa8325ab8225ac8226ad8127ad8128ae8029af7f2ab07f2cb17e2db27d2eb37c2fb47c31b57b32b67a34b67935b77937b87838b9773aba763bbb753dbc743fbc7340bd7242be7144bf7046c06f48c16e4ac16d4cc26c4ec36b50c46a52c56954c56856c66758c7655ac8645cc8635ec96260ca6063cb5f65cb5e67cc5c69cd5b6ccd5a6ece5870cf5773d05675d05477d1537ad1517cd2507fd34e81d34d84d44b86d54989d5488bd6468ed64590d74393d74195d84098d83e9bd93c9dd93ba0da39a2da37a5db36a8db34aadc32addc30b0dd2fb2dd2db5de2bb8de29bade28bddf26c0df25c2df23c5e021c8e020cae11fcde11dd0e11cd2e21bd5e21ad8e219dae319dde318dfe318e2e418e5e419e7e419eae51aece51befe51cf1e51df4e61ef6e620f8e621fbe723fde725"));
var magma = ramp(colors("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"));
var inferno = ramp(colors("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"));
var plasma = ramp(colors("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"));
function sequential(interpolator) {
var x0 = 0,
x1 = 1,
clamp = false;
function scale(x) {
var t = (x - x0) / (x1 - x0);
return interpolator(clamp ? Math.max(0, Math.min(1, t)) : t);
}
scale.domain = function(_) {
return arguments.length ? (x0 = +_[0], x1 = +_[1], scale) : [x0, x1];
};
scale.clamp = function(_) {
return arguments.length ? (clamp = !!_, scale) : clamp;
};
scale.interpolator = function(_) {
return arguments.length ? (interpolator = _, scale) : interpolator;
};
scale.copy = function() {
return sequential(interpolator).domain([x0, x1]).clamp(clamp);
};
return linearish(scale);
}
var xhtml = "http://www.w3.org/1999/xhtml";
var namespaces = {
svg: "http://www.w3.org/2000/svg",
xhtml: xhtml,
xlink: "http://www.w3.org/1999/xlink",
xml: "http://www.w3.org/XML/1998/namespace",
xmlns: "http://www.w3.org/2000/xmlns/"
};
function namespace(name) {
var prefix = name += "", i = prefix.indexOf(":");
if (i >= 0 && (prefix = name.slice(0, i)) !== "xmlns") name = name.slice(i + 1);
return namespaces.hasOwnProperty(prefix) ? {space: namespaces[prefix], local: name} : name;
}
function creatorInherit(name) {
return function() {
var document = this.ownerDocument,
uri = this.namespaceURI;
return uri === xhtml && document.documentElement.namespaceURI === xhtml
? document.createElement(name)
: document.createElementNS(uri, name);
};
}
function creatorFixed(fullname) {
return function() {
return this.ownerDocument.createElementNS(fullname.space, fullname.local);
};
}
function creator(name) {
var fullname = namespace(name);
return (fullname.local
? creatorFixed
: creatorInherit)(fullname);
}
var nextId = 0;
function local() {
return new Local;
}
function Local() {
this._ = "@" + (++nextId).toString(36);
}
Local.prototype = local.prototype = {
constructor: Local,
get: function(node) {
var id = this._;
while (!(id in node)) if (!(node = node.parentNode)) return;
return node[id];
},
set: function(node, value) {
return node[this._] = value;
},
remove: function(node) {
return this._ in node && delete node[this._];
},
toString: function() {
return this._;
}
};
var matcher = function(selector) {
return function() {
return this.matches(selector);
};
};
if (typeof document !== "undefined") {
var element = document.documentElement;
if (!element.matches) {
var vendorMatches = element.webkitMatchesSelector
|| element.msMatchesSelector
|| element.mozMatchesSelector
|| element.oMatchesSelector;
matcher = function(selector) {
return function() {
return vendorMatches.call(this, selector);
};
};
}
}
var matcher$1 = matcher;
var filterEvents = {};
exports.event = null;
if (typeof document !== "undefined") {
var element$1 = document.documentElement;
if (!("onmouseenter" in element$1)) {
filterEvents = {mouseenter: "mouseover", mouseleave: "mouseout"};
}
}
function filterContextListener(listener, index, group) {
listener = contextListener(listener, index, group);
return function(event) {
var related = event.relatedTarget;
if (!related || (related !== this && !(related.compareDocumentPosition(this) & 8))) {
listener.call(this, event);
}
};
}
function contextListener(listener, index, group) {
return function(event1) {
var event0 = exports.event; // Events can be reentrant (e.g., focus).
exports.event = event1;
try {
listener.call(this, this.__data__, index, group);
} finally {
exports.event = event0;
}
};
}
function parseTypenames$1(typenames) {
return typenames.trim().split(/^|\s+/).map(function(t) {
var name = "", i = t.indexOf(".");
if (i >= 0) name = t.slice(i + 1), t = t.slice(0, i);
return {type: t, name: name};
});
}
function onRemove(typename) {
return function() {
var on = this.__on;
if (!on) return;
for (var j = 0, i = -1, m = on.length, o; j < m; ++j) {
if (o = on[j], (!typename.type || o.type === typename.type) && o.name === typename.name) {
this.removeEventListener(o.type, o.listener, o.capture);
} else {
on[++i] = o;
}
}
if (++i) on.length = i;
else delete this.__on;
};
}
function onAdd(typename, value, capture) {
var wrap = filterEvents.hasOwnProperty(typename.type) ? filterContextListener : contextListener;
return function(d, i, group) {
var on = this.__on, o, listener = wrap(value, i, group);
if (on) for (var j = 0, m = on.length; j < m; ++j) {
if ((o = on[j]).type === typename.type && o.name === typename.name) {
this.removeEventListener(o.type, o.listener, o.capture);
this.addEventListener(o.type, o.listener = listener, o.capture = capture);
o.value = value;
return;
}
}
this.addEventListener(typename.type, listener, capture);
o = {type: typename.type, name: typename.name, value: value, listener: listener, capture: capture};
if (!on) this.__on = [o];
else on.push(o);
};
}
function selection_on(typename, value, capture) {
var typenames = parseTypenames$1(typename + ""), i, n = typenames.length, t;
if (arguments.length < 2) {
var on = this.node().__on;
if (on) for (var j = 0, m = on.length, o; j < m; ++j) {
for (i = 0, o = on[j]; i < n; ++i) {
if ((t = typenames[i]).type === o.type && t.name === o.name) {
return o.value;
}
}
}
return;
}
on = value ? onAdd : onRemove;
if (capture == null) capture = false;
for (i = 0; i < n; ++i) this.each(on(typenames[i], value, capture));
return this;
}
function customEvent(event1, listener, that, args) {
var event0 = exports.event;
event1.sourceEvent = exports.event;
exports.event = event1;
try {
return listener.apply(that, args);
} finally {
exports.event = event0;
}
}
function sourceEvent() {
var current = exports.event, source;
while (source = current.sourceEvent) current = source;
return current;
}
function point$5(node, event) {
var svg = node.ownerSVGElement || node;
if (svg.createSVGPoint) {
var point = svg.createSVGPoint();
point.x = event.clientX, point.y = event.clientY;
point = point.matrixTransform(node.getScreenCTM().inverse());
return [point.x, point.y];
}
var rect = node.getBoundingClientRect();
return [event.clientX - rect.left - node.clientLeft, event.clientY - rect.top - node.clientTop];
}
function mouse(node) {
var event = sourceEvent();
if (event.changedTouches) event = event.changedTouches[0];
return point$5(node, event);
}
function none$2() {}
function selector(selector) {
return selector == null ? none$2 : function() {
return this.querySelector(selector);
};
}
function selection_select(select) {
if (typeof select !== "function") select = selector(select);
for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) {
for (var group = groups[j], n = group.length, subgroup = subgroups[j] = new Array(n), node, subnode, i = 0; i < n; ++i) {
if ((node = group[i]) && (subnode = select.call(node, node.__data__, i, group))) {
if ("__data__" in node) subnode.__data__ = node.__data__;
subgroup[i] = subnode;
}
}
}
return new Selection(subgroups, this._parents);
}
function empty() {
return [];
}
function selectorAll(selector) {
return selector == null ? empty : function() {
return this.querySelectorAll(selector);
};
}
function selection_selectAll(select) {
if (typeof select !== "function") select = selectorAll(select);
for (var groups = this._groups, m = groups.length, subgroups = [], parents = [], j = 0; j < m; ++j) {
for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) {
if (node = group[i]) {
subgroups.push(select.call(node, node.__data__, i, group));
parents.push(node);
}
}
}
return new Selection(subgroups, parents);
}
function selection_filter(match) {
if (typeof match !== "function") match = matcher$1(match);
for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) {
for (var group = groups[j], n = group.length, subgroup = subgroups[j] = [], node, i = 0; i < n; ++i) {
if ((node = group[i]) && match.call(node, node.__data__, i, group)) {
subgroup.push(node);
}
}
}
return new Selection(subgroups, this._parents);
}
function sparse(update) {
return new Array(update.length);
}
function selection_enter() {
return new Selection(this._enter || this._groups.map(sparse), this._parents);
}
function EnterNode(parent, datum) {
this.ownerDocument = parent.ownerDocument;
this.namespaceURI = parent.namespaceURI;
this._next = null;
this._parent = parent;
this.__data__ = datum;
}
EnterNode.prototype = {
constructor: EnterNode,
appendChild: function(child) { return this._parent.insertBefore(child, this._next); },
insertBefore: function(child, next) { return this._parent.insertBefore(child, next); },
querySelector: function(selector) { return this._parent.querySelector(selector); },
querySelectorAll: function(selector) { return this._parent.querySelectorAll(selector); }
};
function constant$4(x) {
return function() {
return x;
};
}
var keyPrefix = "$"; // Protect against keys like “__proto__”.
function bindIndex(parent, group, enter, update, exit, data) {
var i = 0,
node,
groupLength = group.length,
dataLength = data.length;
// Put any non-null nodes that fit into update.
// Put any null nodes into enter.
// Put any remaining data into enter.
for (; i < dataLength; ++i) {
if (node = group[i]) {
node.__data__ = data[i];
update[i] = node;
} else {
enter[i] = new EnterNode(parent, data[i]);
}
}
// Put any non-null nodes that don’t fit into exit.
for (; i < groupLength; ++i) {
if (node = group[i]) {
exit[i] = node;
}
}
}
function bindKey(parent, group, enter, update, exit, data, key) {
var i,
node,
nodeByKeyValue = {},
groupLength = group.length,
dataLength = data.length,
keyValues = new Array(groupLength),
keyValue;
// Compute the key for each node.
// If multiple nodes have the same key, the duplicates are added to exit.
for (i = 0; i < groupLength; ++i) {
if (node = group[i]) {
keyValues[i] = keyValue = keyPrefix + key.call(node, node.__data__, i, group);
if (keyValue in nodeByKeyValue) {
exit[i] = node;
} else {
nodeByKeyValue[keyValue] = node;
}
}
}
// Compute the key for each datum.
// If there a node associated with this key, join and add it to update.
// If there is not (or the key is a duplicate), add it to enter.
for (i = 0; i < dataLength; ++i) {
keyValue = keyPrefix + key.call(parent, data[i], i, data);
if (node = nodeByKeyValue[keyValue]) {
update[i] = node;
node.__data__ = data[i];
nodeByKeyValue[keyValue] = null;
} else {
enter[i] = new EnterNode(parent, data[i]);
}
}
// Add any remaining nodes that were not bound to data to exit.
for (i = 0; i < groupLength; ++i) {
if ((node = group[i]) && (nodeByKeyValue[keyValues[i]] === node)) {
exit[i] = node;
}
}
}
function selection_data(value, key) {
if (!value) {
data = new Array(this.size()), j = -1;
this.each(function(d) { data[++j] = d; });
return data;
}
var bind = key ? bindKey : bindIndex,
parents = this._parents,
groups = this._groups;
if (typeof value !== "function") value = constant$4(value);
for (var m = groups.length, update = new Array(m), enter = new Array(m), exit = new Array(m), j = 0; j < m; ++j) {
var parent = parents[j],
group = groups[j],
groupLength = group.length,
data = value.call(parent, parent && parent.__data__, j, parents),
dataLength = data.length,
enterGroup = enter[j] = new Array(dataLength),
updateGroup = update[j] = new Array(dataLength),
exitGroup = exit[j] = new Array(groupLength);
bind(parent, group, enterGroup, updateGroup, exitGroup, data, key);
// Now connect the enter nodes to their following update node, such that
// appendChild can insert the materialized enter node before this node,
// rather than at the end of the parent node.
for (var i0 = 0, i1 = 0, previous, next; i0 < dataLength; ++i0) {
if (previous = enterGroup[i0]) {
if (i0 >= i1) i1 = i0 + 1;
while (!(next = updateGroup[i1]) && ++i1 < dataLength);
previous._next = next || null;
}
}
}
update = new Selection(update, parents);
update._enter = enter;
update._exit = exit;
return update;
}
function selection_exit() {
return new Selection(this._exit || this._groups.map(sparse), this._parents);
}
function selection_merge(selection) {
for (var groups0 = this._groups, groups1 = selection._groups, m0 = groups0.length, m1 = groups1.length, m = Math.min(m0, m1), merges = new Array(m0), j = 0; j < m; ++j) {
for (var group0 = groups0[j], group1 = groups1[j], n = group0.length, merge = merges[j] = new Array(n), node, i = 0; i < n; ++i) {
if (node = group0[i] || group1[i]) {
merge[i] = node;
}
}
}
for (; j < m0; ++j) {
merges[j] = groups0[j];
}
return new Selection(merges, this._parents);
}
function selection_order() {
for (var groups = this._groups, j = -1, m = groups.length; ++j < m;) {
for (var group = groups[j], i = group.length - 1, next = group[i], node; --i >= 0;) {
if (node = group[i]) {
if (next && next !== node.nextSibling) next.parentNode.insertBefore(node, next);
next = node;
}
}
}
return this;
}
function selection_sort(compare) {
if (!compare) compare = ascending$2;
function compareNode(a, b) {
return a && b ? compare(a.__data__, b.__data__) : !a - !b;
}
for (var groups = this._groups, m = groups.length, sortgroups = new Array(m), j = 0; j < m; ++j) {
for (var group = groups[j], n = group.length, sortgroup = sortgroups[j] = new Array(n), node, i = 0; i < n; ++i) {
if (node = group[i]) {
sortgroup[i] = node;
}
}
sortgroup.sort(compareNode);
}
return new Selection(sortgroups, this._parents).order();
}
function ascending$2(a, b) {
return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;
}
function selection_call() {
var callback = arguments[0];
arguments[0] = this;
callback.apply(null, arguments);
return this;
}
function selection_nodes() {
var nodes = new Array(this.size()), i = -1;
this.each(function() { nodes[++i] = this; });
return nodes;
}
function selection_node() {
for (var groups = this._groups, j = 0, m = groups.length; j < m; ++j) {
for (var group = groups[j], i = 0, n = group.length; i < n; ++i) {
var node = group[i];
if (node) return node;
}
}
return null;
}
function selection_size() {
var size = 0;
this.each(function() { ++size; });
return size;
}
function selection_empty() {
return !this.node();
}
function selection_each(callback) {
for (var groups = this._groups, j = 0, m = groups.length; j < m; ++j) {
for (var group = groups[j], i = 0, n = group.length, node; i < n; ++i) {
if (node = group[i]) callback.call(node, node.__data__, i, group);
}
}
return this;
}
function attrRemove(name) {
return function() {
this.removeAttribute(name);
};
}
function attrRemoveNS(fullname) {
return function() {
this.removeAttributeNS(fullname.space, fullname.local);
};
}
function attrConstant(name, value) {
return function() {
this.setAttribute(name, value);
};
}
function attrConstantNS(fullname, value) {
return function() {
this.setAttributeNS(fullname.space, fullname.local, value);
};
}
function attrFunction(name, value) {
return function() {
var v = value.apply(this, arguments);
if (v == null) this.removeAttribute(name);
else this.setAttribute(name, v);
};
}
function attrFunctionNS(fullname, value) {
return function() {
var v = value.apply(this, arguments);
if (v == null) this.removeAttributeNS(fullname.space, fullname.local);
else this.setAttributeNS(fullname.space, fullname.local, v);
};
}
function selection_attr(name, value) {
var fullname = namespace(name);
if (arguments.length < 2) {
var node = this.node();
return fullname.local
? node.getAttributeNS(fullname.space, fullname.local)
: node.getAttribute(fullname);
}
return this.each((value == null
? (fullname.local ? attrRemoveNS : attrRemove) : (typeof value === "function"
? (fullname.local ? attrFunctionNS : attrFunction)
: (fullname.local ? attrConstantNS : attrConstant)))(fullname, value));
}
function window(node) {
return (node.ownerDocument && node.ownerDocument.defaultView) // node is a Node
|| (node.document && node) // node is a Window
|| node.defaultView; // node is a Document
}
function styleRemove(name) {
return function() {
this.style.removeProperty(name);
};
}
function styleConstant(name, value, priority) {
return function() {
this.style.setProperty(name, value, priority);
};
}
function styleFunction(name, value, priority) {
return function() {
var v = value.apply(this, arguments);
if (v == null) this.style.removeProperty(name);
else this.style.setProperty(name, v, priority);
};
}
function selection_style(name, value, priority) {
var node;
return arguments.length > 1
? this.each((value == null
? styleRemove : typeof value === "function"
? styleFunction
: styleConstant)(name, value, priority == null ? "" : priority))
: window(node = this.node())
.getComputedStyle(node, null)
.getPropertyValue(name);
}
function propertyRemove(name) {
return function() {
delete this[name];
};
}
function propertyConstant(name, value) {
return function() {
this[name] = value;
};
}
function propertyFunction(name, value) {
return function() {
var v = value.apply(this, arguments);
if (v == null) delete this[name];
else this[name] = v;
};
}
function selection_property(name, value) {
return arguments.length > 1
? this.each((value == null
? propertyRemove : typeof value === "function"
? propertyFunction
: propertyConstant)(name, value))
: this.node()[name];
}
function classArray(string) {
return string.trim().split(/^|\s+/);
}
function classList(node) {
return node.classList || new ClassList(node);
}
function ClassList(node) {
this._node = node;
this._names = classArray(node.getAttribute("class") || "");
}
ClassList.prototype = {
add: function(name) {
var i = this._names.indexOf(name);
if (i < 0) {
this._names.push(name);
this._node.setAttribute("class", this._names.join(" "));
}
},
remove: function(name) {
var i = this._names.indexOf(name);
if (i >= 0) {
this._names.splice(i, 1);
this._node.setAttribute("class", this._names.join(" "));
}
},
contains: function(name) {
return this._names.indexOf(name) >= 0;
}
};
function classedAdd(node, names) {
var list = classList(node), i = -1, n = names.length;
while (++i < n) list.add(names[i]);
}
function classedRemove(node, names) {
var list = classList(node), i = -1, n = names.length;
while (++i < n) list.remove(names[i]);
}
function classedTrue(names) {
return function() {
classedAdd(this, names);
};
}
function classedFalse(names) {
return function() {
classedRemove(this, names);
};
}
function classedFunction(names, value) {
return function() {
(value.apply(this, arguments) ? classedAdd : classedRemove)(this, names);
};
}
function selection_classed(name, value) {
var names = classArray(name + "");
if (arguments.length < 2) {
var list = classList(this.node()), i = -1, n = names.length;
while (++i < n) if (!list.contains(names[i])) return false;
return true;
}
return this.each((typeof value === "function"
? classedFunction : value
? classedTrue
: classedFalse)(names, value));
}
function textRemove() {
this.textContent = "";
}
function textConstant(value) {
return function() {
this.textContent = value;
};
}
function textFunction(value) {
return function() {
var v = value.apply(this, arguments);
this.textContent = v == null ? "" : v;
};
}
function selection_text(value) {
return arguments.length
? this.each(value == null
? textRemove : (typeof value === "function"
? textFunction
: textConstant)(value))
: this.node().textContent;
}
function htmlRemove() {
this.innerHTML = "";
}
function htmlConstant(value) {
return function() {
this.innerHTML = value;
};
}
function htmlFunction(value) {
return function() {
var v = value.apply(this, arguments);
this.innerHTML = v == null ? "" : v;
};
}
function selection_html(value) {
return arguments.length
? this.each(value == null
? htmlRemove : (typeof value === "function"
? htmlFunction
: htmlConstant)(value))
: this.node().innerHTML;
}
function raise$1() {
if (this.nextSibling) this.parentNode.appendChild(this);
}
function selection_raise() {
return this.each(raise$1);
}
function lower() {
if (this.previousSibling) this.parentNode.insertBefore(this, this.parentNode.firstChild);
}
function selection_lower() {
return this.each(lower);
}
function selection_append(name) {
var create = typeof name === "function" ? name : creator(name);
return this.select(function() {
return this.appendChild(create.apply(this, arguments));
});
}
function constantNull() {
return null;
}
function selection_insert(name, before) {
var create = typeof name === "function" ? name : creator(name),
select = before == null ? constantNull : typeof before === "function" ? before : selector(before);
return this.select(function() {
return this.insertBefore(create.apply(this, arguments), select.apply(this, arguments) || null);
});
}
function remove() {
var parent = this.parentNode;
if (parent) parent.removeChild(this);
}
function selection_remove() {
return this.each(remove);
}
function selection_datum(value) {
return arguments.length
? this.property("__data__", value)
: this.node().__data__;
}
function dispatchEvent(node, type, params) {
var window$$ = window(node),
event = window$$.CustomEvent;
if (event) {
event = new event(type, params);
} else {
event = window$$.document.createEvent("Event");
if (params) event.initEvent(type, params.bubbles, params.cancelable), event.detail = params.detail;
else event.initEvent(type, false, false);
}
node.dispatchEvent(event);
}
function dispatchConstant(type, params) {
return function() {
return dispatchEvent(this, type, params);
};
}
function dispatchFunction(type, params) {
return function() {
return dispatchEvent(this, type, params.apply(this, arguments));
};
}
function selection_dispatch(type, params) {
return this.each((typeof params === "function"
? dispatchFunction
: dispatchConstant)(type, params));
}
var root = [null];
function Selection(groups, parents) {
this._groups = groups;
this._parents = parents;
}
function selection() {
return new Selection([[document.documentElement]], root);
}
Selection.prototype = selection.prototype = {
constructor: Selection,
select: selection_select,
selectAll: selection_selectAll,
filter: selection_filter,
data: selection_data,
enter: selection_enter,
exit: selection_exit,
merge: selection_merge,
order: selection_order,
sort: selection_sort,
call: selection_call,
nodes: selection_nodes,
node: selection_node,
size: selection_size,
empty: selection_empty,
each: selection_each,
attr: selection_attr,
style: selection_style,
property: selection_property,
classed: selection_classed,
text: selection_text,
html: selection_html,
raise: selection_raise,
lower: selection_lower,
append: selection_append,
insert: selection_insert,
remove: selection_remove,
datum: selection_datum,
on: selection_on,
dispatch: selection_dispatch
};
function select(selector) {
return typeof selector === "string"
? new Selection([[document.querySelector(selector)]], [document.documentElement])
: new Selection([[selector]], root);
}
function selectAll(selector) {
return typeof selector === "string"
? new Selection([document.querySelectorAll(selector)], [document.documentElement])
: new Selection([selector == null ? [] : selector], root);
}
function touch(node, touches, identifier) {
if (arguments.length < 3) identifier = touches, touches = sourceEvent().changedTouches;
for (var i = 0, n = touches ? touches.length : 0, touch; i < n; ++i) {
if ((touch = touches[i]).identifier === identifier) {
return point$5(node, touch);
}
}
return null;
}
function touches(node, touches) {
if (touches == null) touches = sourceEvent().touches;
for (var i = 0, n = touches ? touches.length : 0, points = new Array(n); i < n; ++i) {
points[i] = point$5(node, touches[i]);
}
return points;
}
var emptyOn = dispatch("start", "end", "interrupt");
var emptyTween = [];
var CREATED = 0;
var SCHEDULED = 1;
var STARTING = 2;
var STARTED = 3;
var ENDING = 4;
var ENDED = 5;
function schedule(node, name, id, index, group, timing) {
var schedules = node.__transition;
if (!schedules) node.__transition = {};
else if (id in schedules) return;
create(node, id, {
name: name,
index: index, // For context during callback.
group: group, // For context during callback.
on: emptyOn,
tween: emptyTween,
time: timing.time,
delay: timing.delay,
duration: timing.duration,
ease: timing.ease,
timer: null,
state: CREATED
});
}
function init(node, id) {
var schedule = node.__transition;
if (!schedule || !(schedule = schedule[id]) || schedule.state > CREATED) throw new Error("too late");
return schedule;
}
function set$2(node, id) {
var schedule = node.__transition;
if (!schedule || !(schedule = schedule[id]) || schedule.state > STARTING) throw new Error("too late");
return schedule;
}
function get$1(node, id) {
var schedule = node.__transition;
if (!schedule || !(schedule = schedule[id])) throw new Error("too late");
return schedule;
}
function create(node, id, self) {
var schedules = node.__transition,
tween;
// Initialize the self timer when the transition is created.
// Note the actual delay is not known until the first callback!
schedules[id] = self;
self.timer = timer(schedule, 0, self.time);
// If the delay is greater than this first sleep, sleep some more;
// otherwise, start immediately.
function schedule(elapsed) {
self.state = SCHEDULED;
if (self.delay <= elapsed) start(elapsed - self.delay);
else self.timer.restart(start, self.delay, self.time);
}
function start(elapsed) {
var i, j, n, o;
for (i in schedules) {
o = schedules[i];
if (o.name !== self.name) continue;
// Interrupt the active transition, if any.
// Dispatch the interrupt event.
if (o.state === STARTED) {
o.state = ENDED;
o.timer.stop();
o.on.call("interrupt", node, node.__data__, o.index, o.group);
delete schedules[i];
}
// Cancel any pre-empted transitions. No interrupt event is dispatched
// because the cancelled transitions never started. Note that this also
// removes this transition from the pending list!
else if (+i < id) {
o.state = ENDED;
o.timer.stop();
delete schedules[i];
}
}
// Defer the first tick to end of the current frame; see mbostock/d3#1576.
// Note the transition may be canceled after start and before the first tick!
// Note this must be scheduled before the start event; see d3/d3-transition#16!
// Assuming this is successful, subsequent callbacks go straight to tick.
timeout$1(function() {
if (self.state === STARTED) {
self.timer.restart(tick, self.delay, self.time);
tick(elapsed);
}
});
// Dispatch the start event.
// Note this must be done before the tween are initialized.
self.state = STARTING;
self.on.call("start", node, node.__data__, self.index, self.group);
if (self.state !== STARTING) return; // interrupted
self.state = STARTED;
// Initialize the tween, deleting null tween.
tween = new Array(n = self.tween.length);
for (i = 0, j = -1; i < n; ++i) {
if (o = self.tween[i].value.call(node, node.__data__, self.index, self.group)) {
tween[++j] = o;
}
}
tween.length = j + 1;
}
function tick(elapsed) {
var t = elapsed < self.duration ? self.ease.call(null, elapsed / self.duration) : (self.state = ENDING, 1),
i = -1,
n = tween.length;
while (++i < n) {
tween[i].call(null, t);
}
// Dispatch the end event.
if (self.state === ENDING) {
self.state = ENDED;
self.timer.stop();
self.on.call("end", node, node.__data__, self.index, self.group);
for (i in schedules) if (+i !== id) return void delete schedules[id];
delete node.__transition;
}
}
}
function interrupt(node, name) {
var schedules = node.__transition,
schedule,
active,
empty = true,
i;
if (!schedules) return;
name = name == null ? null : name + "";
for (i in schedules) {
if ((schedule = schedules[i]).name !== name) { empty = false; continue; }
active = schedule.state === STARTED;
schedule.state = ENDED;
schedule.timer.stop();
if (active) schedule.on.call("interrupt", node, node.__data__, schedule.index, schedule.group);
delete schedules[i];
}
if (empty) delete node.__transition;
}
function selection_interrupt(name) {
return this.each(function() {
interrupt(this, name);
});
}
function tweenRemove(id, name) {
var tween0, tween1;
return function() {
var schedule = set$2(this, id),
tween = schedule.tween;
// If this node shared tween with the previous node,
// just assign the updated shared tween and we’re done!
// Otherwise, copy-on-write.
if (tween !== tween0) {
tween1 = tween0 = tween;
for (var i = 0, n = tween1.length; i < n; ++i) {
if (tween1[i].name === name) {
tween1 = tween1.slice();
tween1.splice(i, 1);
break;
}
}
}
schedule.tween = tween1;
};
}
function tweenFunction(id, name, value) {
var tween0, tween1;
if (typeof value !== "function") throw new Error;
return function() {
var schedule = set$2(this, id),
tween = schedule.tween;
// If this node shared tween with the previous node,
// just assign the updated shared tween and we’re done!
// Otherwise, copy-on-write.
if (tween !== tween0) {
tween1 = (tween0 = tween).slice();
for (var t = {name: name, value: value}, i = 0, n = tween1.length; i < n; ++i) {
if (tween1[i].name === name) {
tween1[i] = t;
break;
}
}
if (i === n) tween1.push(t);
}
schedule.tween = tween1;
};
}
function transition_tween(name, value) {
var id = this._id;
name += "";
if (arguments.length < 2) {
var tween = get$1(this.node(), id).tween;
for (var i = 0, n = tween.length, t; i < n; ++i) {
if ((t = tween[i]).name === name) {
return t.value;
}
}
return null;
}
return this.each((value == null ? tweenRemove : tweenFunction)(id, name, value));
}
function tweenValue(transition, name, value) {
var id = transition._id;
transition.each(function() {
var schedule = set$2(this, id);
(schedule.value || (schedule.value = {}))[name] = value.apply(this, arguments);
});
return function(node) {
return get$1(node, id).value[name];
};
}
function interpolate$1(a, b) {
var c;
return (typeof b === "number" ? interpolateNumber
: b instanceof color ? interpolateRgb
: (c = color(b)) ? (b = c, interpolateRgb)
: interpolateString)(a, b);
}
function attrRemove$1(name) {
return function() {
this.removeAttribute(name);
};
}
function attrRemoveNS$1(fullname) {
return function() {
this.removeAttributeNS(fullname.space, fullname.local);
};
}
function attrConstant$1(name, interpolate, value1) {
var value00,
interpolate0;
return function() {
var value0 = this.getAttribute(name);
return value0 === value1 ? null
: value0 === value00 ? interpolate0
: interpolate0 = interpolate(value00 = value0, value1);
};
}
function attrConstantNS$1(fullname, interpolate, value1) {
var value00,
interpolate0;
return function() {
var value0 = this.getAttributeNS(fullname.space, fullname.local);
return value0 === value1 ? null
: value0 === value00 ? interpolate0
: interpolate0 = interpolate(value00 = value0, value1);
};
}
function attrFunction$1(name, interpolate, value) {
var value00,
value10,
interpolate0;
return function() {
var value0, value1 = value(this);
if (value1 == null) return void this.removeAttribute(name);
value0 = this.getAttribute(name);
return value0 === value1 ? null
: value0 === value00 && value1 === value10 ? interpolate0
: interpolate0 = interpolate(value00 = value0, value10 = value1);
};
}
function attrFunctionNS$1(fullname, interpolate, value) {
var value00,
value10,
interpolate0;
return function() {
var value0, value1 = value(this);
if (value1 == null) return void this.removeAttributeNS(fullname.space, fullname.local);
value0 = this.getAttributeNS(fullname.space, fullname.local);
return value0 === value1 ? null
: value0 === value00 && value1 === value10 ? interpolate0
: interpolate0 = interpolate(value00 = value0, value10 = value1);
};
}
function transition_attr(name, value) {
var fullname = namespace(name), i = fullname === "transform" ? interpolateTransform$2 : interpolate$1;
return this.attrTween(name, typeof value === "function"
? (fullname.local ? attrFunctionNS$1 : attrFunction$1)(fullname, i, tweenValue(this, "attr." + name, value))
: value == null ? (fullname.local ? attrRemoveNS$1 : attrRemove$1)(fullname)
: (fullname.local ? attrConstantNS$1 : attrConstant$1)(fullname, i, value));
}
function attrTweenNS(fullname, value) {
function tween() {
var node = this, i = value.apply(node, arguments);
return i && function(t) {
node.setAttributeNS(fullname.space, fullname.local, i(t));
};
}
tween._value = value;
return tween;
}
function attrTween(name, value) {
function tween() {
var node = this, i = value.apply(node, arguments);
return i && function(t) {
node.setAttribute(name, i(t));
};
}
tween._value = value;
return tween;
}
function transition_attrTween(name, value) {
var key = "attr." + name;
if (arguments.length < 2) return (key = this.tween(key)) && key._value;
if (value == null) return this.tween(key, null);
if (typeof value !== "function") throw new Error;
var fullname = namespace(name);
return this.tween(key, (fullname.local ? attrTweenNS : attrTween)(fullname, value));
}
function delayFunction(id, value) {
return function() {
init(this, id).delay = +value.apply(this, arguments);
};
}
function delayConstant(id, value) {
return value = +value, function() {
init(this, id).delay = value;
};
}
function transition_delay(value) {
var id = this._id;
return arguments.length
? this.each((typeof value === "function"
? delayFunction
: delayConstant)(id, value))
: get$1(this.node(), id).delay;
}
function durationFunction(id, value) {
return function() {
set$2(this, id).duration = +value.apply(this, arguments);
};
}
function durationConstant(id, value) {
return value = +value, function() {
set$2(this, id).duration = value;
};
}
function transition_duration(value) {
var id = this._id;
return arguments.length
? this.each((typeof value === "function"
? durationFunction
: durationConstant)(id, value))
: get$1(this.node(), id).duration;
}
function easeConstant(id, value) {
if (typeof value !== "function") throw new Error;
return function() {
set$2(this, id).ease = value;
};
}
function transition_ease(value) {
var id = this._id;
return arguments.length
? this.each(easeConstant(id, value))
: get$1(this.node(), id).ease;
}
function transition_filter(match) {
if (typeof match !== "function") match = matcher$1(match);
for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) {
for (var group = groups[j], n = group.length, subgroup = subgroups[j] = [], node, i = 0; i < n; ++i) {
if ((node = group[i]) && match.call(node, node.__data__, i, group)) {
subgroup.push(node);
}
}
}
return new Transition(subgroups, this._parents, this._name, this._id);
}
function transition_merge(transition) {
if (transition._id !== this._id) throw new Error;
for (var groups0 = this._groups, groups1 = transition._groups, m0 = groups0.length, m1 = groups1.length, m = Math.min(m0, m1), merges = new Array(m0), j = 0; j < m; ++j) {
for (var group0 = groups0[j], group1 = groups1[j], n = group0.length, merge = merges[j] = new Array(n), node, i = 0; i < n; ++i) {
if (node = group0[i] || group1[i]) {
merge[i] = node;
}
}
}
for (; j < m0; ++j) {
merges[j] = groups0[j];
}
return new Transition(merges, this._parents, this._name, this._id);
}
function start$1(name) {
return (name + "").trim().split(/^|\s+/).every(function(t) {
var i = t.indexOf(".");
if (i >= 0) t = t.slice(0, i);
return !t || t === "start";
});
}
function onFunction(id, name, listener) {
var on0, on1, sit = start$1(name) ? init : set$2;
return function() {
var schedule = sit(this, id),
on = schedule.on;
// If this node shared a dispatch with the previous node,
// just assign the updated shared dispatch and we’re done!
// Otherwise, copy-on-write.
if (on !== on0) (on1 = (on0 = on).copy()).on(name, listener);
schedule.on = on1;
};
}
function transition_on(name, listener) {
var id = this._id;
return arguments.length < 2
? get$1(this.node(), id).on.on(name)
: this.each(onFunction(id, name, listener));
}
function removeFunction(id) {
return function() {
var parent = this.parentNode;
for (var i in this.__transition) if (+i !== id) return;
if (parent) parent.removeChild(this);
};
}
function transition_remove() {
return this.on("end.remove", removeFunction(this._id));
}
function transition_select(select) {
var name = this._name,
id = this._id;
if (typeof select !== "function") select = selector(select);
for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) {
for (var group = groups[j], n = group.length, subgroup = subgroups[j] = new Array(n), node, subnode, i = 0; i < n; ++i) {
if ((node = group[i]) && (subnode = select.call(node, node.__data__, i, group))) {
if ("__data__" in node) subnode.__data__ = node.__data__;
subgroup[i] = subnode;
schedule(subgroup[i], name, id, i, subgroup, get$1(node, id));
}
}
}
return new Transition(subgroups, this._parents, name, id);
}
function transition_selectAll(select) {
var name = this._name,
id = this._id;
if (typeof select !== "function") select = selectorAll(select);
for (var groups = this._groups, m = groups.length, subgroups = [], parents = [], j = 0; j < m; ++j) {
for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) {
if (node = group[i]) {
for (var children = select.call(node, node.__data__, i, group), child, inherit = get$1(node, id), k = 0, l = children.length; k < l; ++k) {
if (child = children[k]) {
schedule(child, name, id, k, children, inherit);
}
}
subgroups.push(children);
parents.push(node);
}
}
}
return new Transition(subgroups, parents, name, id);
}
var Selection$1 = selection.prototype.constructor;
function transition_selection() {
return new Selection$1(this._groups, this._parents);
}
function styleRemove$1(name, interpolate) {
var value00,
value10,
interpolate0;
return function() {
var style = window(this).getComputedStyle(this, null),
value0 = style.getPropertyValue(name),
value1 = (this.style.removeProperty(name), style.getPropertyValue(name));
return value0 === value1 ? null
: value0 === value00 && value1 === value10 ? interpolate0
: interpolate0 = interpolate(value00 = value0, value10 = value1);
};
}
function styleRemoveEnd(name) {
return function() {
this.style.removeProperty(name);
};
}
function styleConstant$1(name, interpolate, value1) {
var value00,
interpolate0;
return function() {
var value0 = window(this).getComputedStyle(this, null).getPropertyValue(name);
return value0 === value1 ? null
: value0 === value00 ? interpolate0
: interpolate0 = interpolate(value00 = value0, value1);
};
}
function styleFunction$1(name, interpolate, value) {
var value00,
value10,
interpolate0;
return function() {
var style = window(this).getComputedStyle(this, null),
value0 = style.getPropertyValue(name),
value1 = value(this);
if (value1 == null) value1 = (this.style.removeProperty(name), style.getPropertyValue(name));
return value0 === value1 ? null
: value0 === value00 && value1 === value10 ? interpolate0
: interpolate0 = interpolate(value00 = value0, value10 = value1);
};
}
function transition_style(name, value, priority) {
var i = (name += "") === "transform" ? interpolateTransform$1 : interpolate$1;
return value == null ? this
.styleTween(name, styleRemove$1(name, i))
.on("end.style." + name, styleRemoveEnd(name))
: this.styleTween(name, typeof value === "function"
? styleFunction$1(name, i, tweenValue(this, "style." + name, value))
: styleConstant$1(name, i, value), priority);
}
function styleTween(name, value, priority) {
function tween() {
var node = this, i = value.apply(node, arguments);
return i && function(t) {
node.style.setProperty(name, i(t), priority);
};
}
tween._value = value;
return tween;
}
function transition_styleTween(name, value, priority) {
var key = "style." + (name += "");
if (arguments.length < 2) return (key = this.tween(key)) && key._value;
if (value == null) return this.tween(key, null);
if (typeof value !== "function") throw new Error;
return this.tween(key, styleTween(name, value, priority == null ? "" : priority));
}
function textConstant$1(value) {
return function() {
this.textContent = value;
};
}
function textFunction$1(value) {
return function() {
var value1 = value(this);
this.textContent = value1 == null ? "" : value1;
};
}
function transition_text(value) {
return this.tween("text", typeof value === "function"
? textFunction$1(tweenValue(this, "text", value))
: textConstant$1(value == null ? "" : value + ""));
}
function transition_transition() {
var name = this._name,
id0 = this._id,
id1 = newId();
for (var groups = this._groups, m = groups.length, j = 0; j < m; ++j) {
for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) {
if (node = group[i]) {
var inherit = get$1(node, id0);
schedule(node, name, id1, i, group, {
time: inherit.time + inherit.delay + inherit.duration,
delay: 0,
duration: inherit.duration,
ease: inherit.ease
});
}
}
}
return new Transition(groups, this._parents, name, id1);
}
var id = 0;
function Transition(groups, parents, name, id) {
this._groups = groups;
this._parents = parents;
this._name = name;
this._id = id;
}
function transition(name) {
return selection().transition(name);
}
function newId() {
return ++id;
}
var selection_prototype = selection.prototype;
Transition.prototype = transition.prototype = {
constructor: Transition,
select: transition_select,
selectAll: transition_selectAll,
filter: transition_filter,
merge: transition_merge,
selection: transition_selection,
transition: transition_transition,
call: selection_prototype.call,
nodes: selection_prototype.nodes,
node: selection_prototype.node,
size: selection_prototype.size,
empty: selection_prototype.empty,
each: selection_prototype.each,
on: transition_on,
attr: transition_attr,
attrTween: transition_attrTween,
style: transition_style,
styleTween: transition_styleTween,
text: transition_text,
remove: transition_remove,
tween: transition_tween,
delay: transition_delay,
duration: transition_duration,
ease: transition_ease
};
var defaultTiming = {
time: null, // Set on use.
delay: 0,
duration: 250,
ease: easeCubicInOut
};
function inherit(node, id) {
var timing;
while (!(timing = node.__transition) || !(timing = timing[id])) {
if (!(node = node.parentNode)) {
return defaultTiming.time = now(), defaultTiming;
}
}
return timing;
}
function selection_transition(name) {
var id,
timing;
if (name instanceof Transition) {
id = name._id, name = name._name;
} else {
id = newId(), (timing = defaultTiming).time = now(), name = name == null ? null : name + "";
}
for (var groups = this._groups, m = groups.length, j = 0; j < m; ++j) {
for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) {
if (node = group[i]) {
schedule(node, name, id, i, group, timing || inherit(node, id));
}
}
}
return new Transition(groups, this._parents, name, id);
}
selection.prototype.interrupt = selection_interrupt;
selection.prototype.transition = selection_transition;
var root$1 = [null];
function active(node, name) {
var schedules = node.__transition,
schedule,
i;
if (schedules) {
name = name == null ? null : name + "";
for (i in schedules) {
if ((schedule = schedules[i]).state > SCHEDULED && schedule.name === name) {
return new Transition([[node]], root$1, name, +i);
}
}
}
return null;
}
var slice$4 = Array.prototype.slice;
function identity$5(x) {
return x;
}
var top = 1;
var right = 2;
var bottom = 3;
var left = 4;
var epsilon$2 = 1e-6;
function translateX(scale0, scale1, d) {
var x = scale0(d);
return "translate(" + (isFinite(x) ? x : scale1(d)) + ",0)";
}
function translateY(scale0, scale1, d) {
var y = scale0(d);
return "translate(0," + (isFinite(y) ? y : scale1(d)) + ")";
}
function center(scale) {
var width = scale.bandwidth() / 2;
return function(d) {
return scale(d) + width;
};
}
function entering() {
return !this.__axis;
}
function axis(orient, scale) {
var tickArguments = [],
tickValues = null,
tickFormat = null,
tickSizeInner = 6,
tickSizeOuter = 6,
tickPadding = 3;
function axis(context) {
var values = tickValues == null ? (scale.ticks ? scale.ticks.apply(scale, tickArguments) : scale.domain()) : tickValues,
format = tickFormat == null ? (scale.tickFormat ? scale.tickFormat.apply(scale, tickArguments) : identity$5) : tickFormat,
spacing = Math.max(tickSizeInner, 0) + tickPadding,
transform = orient === top || orient === bottom ? translateX : translateY,
range = scale.range(),
range0 = range[0] + 0.5,
range1 = range[range.length - 1] + 0.5,
position = (scale.bandwidth ? center : identity$5)(scale.copy()),
selection = context.selection ? context.selection() : context,
path = selection.selectAll(".domain").data([null]),
tick = selection.selectAll(".tick").data(values, scale).order(),
tickExit = tick.exit(),
tickEnter = tick.enter().append("g").attr("class", "tick"),
line = tick.select("line"),
text = tick.select("text"),
k = orient === top || orient === left ? -1 : 1,
x, y = orient === left || orient === right ? (x = "x", "y") : (x = "y", "x");
path = path.merge(path.enter().insert("path", ".tick")
.attr("class", "domain")
.attr("stroke", "#000"));
tick = tick.merge(tickEnter);
line = line.merge(tickEnter.append("line")
.attr("stroke", "#000")
.attr(x + "2", k * tickSizeInner)
.attr(y + "1", 0.5)
.attr(y + "2", 0.5));
text = text.merge(tickEnter.append("text")
.attr("fill", "#000")
.attr(x, k * spacing)
.attr(y, 0.5)
.attr("dy", orient === top ? "0em" : orient === bottom ? ".71em" : ".32em"));
if (context !== selection) {
path = path.transition(context);
tick = tick.transition(context);
line = line.transition(context);
text = text.transition(context);
tickExit = tickExit.transition(context)
.attr("opacity", epsilon$2)
.attr("transform", function(d) { return transform(position, this.parentNode.__axis || position, d); });
tickEnter
.attr("opacity", epsilon$2)
.attr("transform", function(d) { return transform(this.parentNode.__axis || position, position, d); });
}
tickExit.remove();
path
.attr("d", orient === left || orient == right
? "M" + k * tickSizeOuter + "," + range0 + "H0.5V" + range1 + "H" + k * tickSizeOuter
: "M" + range0 + "," + k * tickSizeOuter + "V0.5H" + range1 + "V" + k * tickSizeOuter);
tick
.attr("opacity", 1)
.attr("transform", function(d) { return transform(position, position, d); });
line
.attr(x + "2", k * tickSizeInner);
text
.attr(x, k * spacing)
.text(format);
selection.filter(entering)
.attr("fill", "none")
.attr("font-size", 10)
.attr("font-family", "sans-serif")
.attr("text-anchor", orient === right ? "start" : orient === left ? "end" : "middle");
selection
.each(function() { this.__axis = position; });
}
axis.scale = function(_) {
return arguments.length ? (scale = _, axis) : scale;
};
axis.ticks = function() {
return tickArguments = slice$4.call(arguments), axis;
};
axis.tickArguments = function(_) {
return arguments.length ? (tickArguments = _ == null ? [] : slice$4.call(_), axis) : tickArguments.slice();
};
axis.tickValues = function(_) {
return arguments.length ? (tickValues = _ == null ? null : slice$4.call(_), axis) : tickValues && tickValues.slice();
};
axis.tickFormat = function(_) {
return arguments.length ? (tickFormat = _, axis) : tickFormat;
};
axis.tickSize = function(_) {
return arguments.length ? (tickSizeInner = tickSizeOuter = +_, axis) : tickSizeInner;
};
axis.tickSizeInner = function(_) {
return arguments.length ? (tickSizeInner = +_, axis) : tickSizeInner;
};
axis.tickSizeOuter = function(_) {
return arguments.length ? (tickSizeOuter = +_, axis) : tickSizeOuter;
};
axis.tickPadding = function(_) {
return arguments.length ? (tickPadding = +_, axis) : tickPadding;
};
return axis;
}
function axisTop(scale) {
return axis(top, scale);
}
function axisRight(scale) {
return axis(right, scale);
}
function axisBottom(scale) {
return axis(bottom, scale);
}
function axisLeft(scale) {
return axis(left, scale);
}
function defaultSeparation(a, b) {
return a.parent === b.parent ? 1 : 2;
}
function meanX(children) {
return children.reduce(meanXReduce, 0) / children.length;
}
function meanXReduce(x, c) {
return x + c.x;
}
function maxY(children) {
return 1 + children.reduce(maxYReduce, 0);
}
function maxYReduce(y, c) {
return Math.max(y, c.y);
}
function leafLeft(node) {
var children;
while (children = node.children) node = children[0];
return node;
}
function leafRight(node) {
var children;
while (children = node.children) node = children[children.length - 1];
return node;
}
function cluster() {
var separation = defaultSeparation,
dx = 1,
dy = 1,
nodeSize = false;
function cluster(root) {
var previousNode,
x = 0;
// First walk, computing the initial x & y values.
root.eachAfter(function(node) {
var children = node.children;
if (children) {
node.x = meanX(children);
node.y = maxY(children);
} else {
node.x = previousNode ? x += separation(node, previousNode) : 0;
node.y = 0;
previousNode = node;
}
});
var left = leafLeft(root),
right = leafRight(root),
x0 = left.x - separation(left, right) / 2,
x1 = right.x + separation(right, left) / 2;
// Second walk, normalizing x & y to the desired size.
return root.eachAfter(nodeSize ? function(node) {
node.x = (node.x - root.x) * dx;
node.y = (root.y - node.y) * dy;
} : function(node) {
node.x = (node.x - x0) / (x1 - x0) * dx;
node.y = (1 - (root.y ? node.y / root.y : 1)) * dy;
});
}
cluster.separation = function(x) {
return arguments.length ? (separation = x, cluster) : separation;
};
cluster.size = function(x) {
return arguments.length ? (nodeSize = false, dx = +x[0], dy = +x[1], cluster) : (nodeSize ? null : [dx, dy]);
};
cluster.nodeSize = function(x) {
return arguments.length ? (nodeSize = true, dx = +x[0], dy = +x[1], cluster) : (nodeSize ? [dx, dy] : null);
};
return cluster;
}
function node_each(callback) {
var node = this, current, next = [node], children, i, n;
do {
current = next.reverse(), next = [];
while (node = current.pop()) {
callback(node), children = node.children;
if (children) for (i = 0, n = children.length; i < n; ++i) {
next.push(children[i]);
}
}
} while (next.length);
return this;
}
function node_eachBefore(callback) {
var node = this, nodes = [node], children, i;
while (node = nodes.pop()) {
callback(node), children = node.children;
if (children) for (i = children.length - 1; i >= 0; --i) {
nodes.push(children[i]);
}
}
return this;
}
function node_eachAfter(callback) {
var node = this, nodes = [node], next = [], children, i, n;
while (node = nodes.pop()) {
next.push(node), children = node.children;
if (children) for (i = 0, n = children.length; i < n; ++i) {
nodes.push(children[i]);
}
}
while (node = next.pop()) {
callback(node);
}
return this;
}
function node_sum(value) {
return this.eachAfter(function(node) {
var sum = +value(node.data) || 0,
children = node.children,
i = children && children.length;
while (--i >= 0) sum += children[i].value;
node.value = sum;
});
}
function node_sort(compare) {
return this.eachBefore(function(node) {
if (node.children) {
node.children.sort(compare);
}
});
}
function node_path(end) {
var start = this,
ancestor = leastCommonAncestor(start, end),
nodes = [start];
while (start !== ancestor) {
start = start.parent;
nodes.push(start);
}
var k = nodes.length;
while (end !== ancestor) {
nodes.splice(k, 0, end);
end = end.parent;
}
return nodes;
}
function leastCommonAncestor(a, b) {
if (a === b) return a;
var aNodes = a.ancestors(),
bNodes = b.ancestors(),
c = null;
a = aNodes.pop();
b = bNodes.pop();
while (a === b) {
c = a;
a = aNodes.pop();
b = bNodes.pop();
}
return c;
}
function node_ancestors() {
var node = this, nodes = [node];
while (node = node.parent) {
nodes.push(node);
}
return nodes;
}
function node_descendants() {
var nodes = [];
this.each(function(node) {
nodes.push(node);
});
return nodes;
}
function node_leaves() {
var leaves = [];
this.eachBefore(function(node) {
if (!node.children) {
leaves.push(node);
}
});
return leaves;
}
function node_links() {
var root = this, links = [];
root.each(function(node) {
if (node !== root) { // Don’t include the root’s parent, if any.
links.push({source: node.parent, target: node});
}
});
return links;
}
function hierarchy(data, children) {
var root = new Node(data),
valued = +data.value && (root.value = data.value),
node,
nodes = [root],
child,
childs,
i,
n;
if (children == null) children = defaultChildren;
while (node = nodes.pop()) {
if (valued) node.value = +node.data.value;
if ((childs = children(node.data)) && (n = childs.length)) {
node.children = new Array(n);
for (i = n - 1; i >= 0; --i) {
nodes.push(child = node.children[i] = new Node(childs[i]));
child.parent = node;
child.depth = node.depth + 1;
}
}
}
return root.eachBefore(computeHeight);
}
function node_copy() {
return hierarchy(this).eachBefore(copyData);
}
function defaultChildren(d) {
return d.children;
}
function copyData(node) {
node.data = node.data.data;
}
function computeHeight(node) {
var height = 0;
do node.height = height;
while ((node = node.parent) && (node.height < ++height));
}
function Node(data) {
this.data = data;
this.depth =
this.height = 0;
this.parent = null;
}
Node.prototype = hierarchy.prototype = {
constructor: Node,
each: node_each,
eachAfter: node_eachAfter,
eachBefore: node_eachBefore,
sum: node_sum,
sort: node_sort,
path: node_path,
ancestors: node_ancestors,
descendants: node_descendants,
leaves: node_leaves,
links: node_links,
copy: node_copy
};
function Node$2(value) {
this._ = value;
this.next = null;
}
function shuffle$1(array) {
var i,
n = (array = array.slice()).length,
head = null,
node = head;
while (n) {
var next = new Node$2(array[n - 1]);
if (node) node = node.next = next;
else node = head = next;
array[i] = array[--n];
}
return {
head: head,
tail: node
};
}
function enclose(circles) {
return encloseN(shuffle$1(circles), []);
}
function encloses(a, b) {
var dx = b.x - a.x,
dy = b.y - a.y,
dr = a.r - b.r;
return dr * dr + 1e-6 > dx * dx + dy * dy;
}
// Returns the smallest circle that contains circles L and intersects circles B.
function encloseN(L, B) {
var circle,
l0 = null,
l1 = L.head,
l2,
p1;
switch (B.length) {
case 1: circle = enclose1(B[0]); break;
case 2: circle = enclose2(B[0], B[1]); break;
case 3: circle = enclose3(B[0], B[1], B[2]); break;
}
while (l1) {
p1 = l1._, l2 = l1.next;
if (!circle || !encloses(circle, p1)) {
// Temporarily truncate L before l1.
if (l0) L.tail = l0, l0.next = null;
else L.head = L.tail = null;
B.push(p1);
circle = encloseN(L, B); // Note: reorders L!
B.pop();
// Move l1 to the front of L and reconnect the truncated list L.
if (L.head) l1.next = L.head, L.head = l1;
else l1.next = null, L.head = L.tail = l1;
l0 = L.tail, l0.next = l2;
} else {
l0 = l1;
}
l1 = l2;
}
L.tail = l0;
return circle;
}
function enclose1(a) {
return {
x: a.x,
y: a.y,
r: a.r
};
}
function enclose2(a, b) {
var x1 = a.x, y1 = a.y, r1 = a.r,
x2 = b.x, y2 = b.y, r2 = b.r,
x21 = x2 - x1, y21 = y2 - y1, r21 = r2 - r1,
l = Math.sqrt(x21 * x21 + y21 * y21);
return {
x: (x1 + x2 + x21 / l * r21) / 2,
y: (y1 + y2 + y21 / l * r21) / 2,
r: (l + r1 + r2) / 2
};
}
function enclose3(a, b, c) {
var x1 = a.x, y1 = a.y, r1 = a.r,
x2 = b.x, y2 = b.y, r2 = b.r,
x3 = c.x, y3 = c.y, r3 = c.r,
a2 = 2 * (x1 - x2),
b2 = 2 * (y1 - y2),
c2 = 2 * (r2 - r1),
d2 = x1 * x1 + y1 * y1 - r1 * r1 - x2 * x2 - y2 * y2 + r2 * r2,
a3 = 2 * (x1 - x3),
b3 = 2 * (y1 - y3),
c3 = 2 * (r3 - r1),
d3 = x1 * x1 + y1 * y1 - r1 * r1 - x3 * x3 - y3 * y3 + r3 * r3,
ab = a3 * b2 - a2 * b3,
xa = (b2 * d3 - b3 * d2) / ab - x1,
xb = (b3 * c2 - b2 * c3) / ab,
ya = (a3 * d2 - a2 * d3) / ab - y1,
yb = (a2 * c3 - a3 * c2) / ab,
A = xb * xb + yb * yb - 1,
B = 2 * (xa * xb + ya * yb + r1),
C = xa * xa + ya * ya - r1 * r1,
r = (-B - Math.sqrt(B * B - 4 * A * C)) / (2 * A);
return {
x: xa + xb * r + x1,
y: ya + yb * r + y1,
r: r
};
}
function place(a, b, c) {
var ax = a.x,
ay = a.y,
da = b.r + c.r,
db = a.r + c.r,
dx = b.x - ax,
dy = b.y - ay,
dc = dx * dx + dy * dy;
if (dc) {
var x = 0.5 + ((db *= db) - (da *= da)) / (2 * dc),
y = Math.sqrt(Math.max(0, 2 * da * (db + dc) - (db -= dc) * db - da * da)) / (2 * dc);
c.x = ax + x * dx + y * dy;
c.y = ay + x * dy - y * dx;
} else {
c.x = ax + db;
c.y = ay;
}
}
function intersects(a, b) {
var dx = b.x - a.x,
dy = b.y - a.y,
dr = a.r + b.r;
return dr * dr > dx * dx + dy * dy;
}
function distance2(circle, x, y) {
var dx = circle.x - x,
dy = circle.y - y;
return dx * dx + dy * dy;
}
function Node$1(circle) {
this._ = circle;
this.next = null;
this.previous = null;
}
function packEnclose(circles) {
if (!(n = circles.length)) return 0;
var a, b, c, n;
// Place the first circle.
a = circles[0], a.x = 0, a.y = 0;
if (!(n > 1)) return a.r;
// Place the second circle.
b = circles[1], a.x = -b.r, b.x = a.r, b.y = 0;
if (!(n > 2)) return a.r + b.r;
// Place the third circle.
place(b, a, c = circles[2]);
// Initialize the weighted centroid.
var aa = a.r * a.r,
ba = b.r * b.r,
ca = c.r * c.r,
oa = aa + ba + ca,
ox = aa * a.x + ba * b.x + ca * c.x,
oy = aa * a.y + ba * b.y + ca * c.y,
cx, cy, i, j, k, sj, sk;
// Initialize the front-chain using the first three circles a, b and c.
a = new Node$1(a), b = new Node$1(b), c = new Node$1(c);
a.next = c.previous = b;
b.next = a.previous = c;
c.next = b.previous = a;
// Attempt to place each remaining circle…
pack: for (i = 3; i < n; ++i) {
place(a._, b._, c = circles[i]), c = new Node$1(c);
// If there are only three elements in the front-chain…
if ((k = a.previous) === (j = b.next)) {
// If the new circle intersects the third circle,
// rotate the front chain to try the next position.
if (intersects(j._, c._)) {
a = b, b = j, --i;
continue pack;
}
}
// Find the closest intersecting circle on the front-chain, if any.
else {
sj = j._.r, sk = k._.r;
do {
if (sj <= sk) {
if (intersects(j._, c._)) {
b = j, a.next = b, b.previous = a, --i;
continue pack;
}
j = j.next, sj += j._.r;
} else {
if (intersects(k._, c._)) {
a = k, a.next = b, b.previous = a, --i;
continue pack;
}
k = k.previous, sk += k._.r;
}
} while (j !== k.next);
}
// Success! Insert the new circle c between a and b.
c.previous = a, c.next = b, a.next = b.previous = b = c;
// Update the weighted centroid.
oa += ca = c._.r * c._.r;
ox += ca * c._.x;
oy += ca * c._.y;
// Compute the new closest circle a to centroid.
aa = distance2(a._, cx = ox / oa, cy = oy / oa);
while ((c = c.next) !== b) {
if ((ca = distance2(c._, cx, cy)) < aa) {
a = c, aa = ca;
}
}
b = a.next;
}
// Compute the enclosing circle of the front chain.
a = [b._], c = b; while ((c = c.next) !== b) a.push(c._); c = enclose(a);
// Translate the circles to put the enclosing circle around the origin.
for (i = 0; i < n; ++i) a = circles[i], a.x -= c.x, a.y -= c.y;
return c.r;
}
function siblings(circles) {
packEnclose(circles);
return circles;
}
function optional(f) {
return f == null ? null : required(f);
}
function required(f) {
if (typeof f !== "function") throw new Error;
return f;
}
function constantZero() {
return 0;
}
function constant$5(x) {
return function() {
return x;
};
}
function defaultRadius(d) {
return Math.sqrt(d.value);
}
function index() {
var radius = null,
dx = 1,
dy = 1,
padding = constantZero;
function pack(root) {
root.x = dx / 2, root.y = dy / 2;
if (radius) {
root.eachBefore(radiusLeaf(radius))
.eachAfter(packChildren(padding, 0.5))
.eachBefore(translateChild(1));
} else {
root.eachBefore(radiusLeaf(defaultRadius))
.eachAfter(packChildren(constantZero, 1))
.eachAfter(packChildren(padding, root.r / Math.min(dx, dy)))
.eachBefore(translateChild(Math.min(dx, dy) / (2 * root.r)));
}
return root;
}
pack.radius = function(x) {
return arguments.length ? (radius = optional(x), pack) : radius;
};
pack.size = function(x) {
return arguments.length ? (dx = +x[0], dy = +x[1], pack) : [dx, dy];
};
pack.padding = function(x) {
return arguments.length ? (padding = typeof x === "function" ? x : constant$5(+x), pack) : padding;
};
return pack;
}
function radiusLeaf(radius) {
return function(node) {
if (!node.children) {
node.r = Math.max(0, +radius(node) || 0);
}
};
}
function packChildren(padding, k) {
return function(node) {
if (children = node.children) {
var children,
i,
n = children.length,
r = padding(node) * k || 0,
e;
if (r) for (i = 0; i < n; ++i) children[i].r += r;
e = packEnclose(children);
if (r) for (i = 0; i < n; ++i) children[i].r -= r;
node.r = e + r;
}
};
}
function translateChild(k) {
return function(node) {
var parent = node.parent;
node.r *= k;
if (parent) {
node.x = parent.x + k * node.x;
node.y = parent.y + k * node.y;
}
};
}
function roundNode(node) {
node.x0 = Math.round(node.x0);
node.y0 = Math.round(node.y0);
node.x1 = Math.round(node.x1);
node.y1 = Math.round(node.y1);
}
function treemapDice(parent, x0, y0, x1, y1) {
var nodes = parent.children,
node,
i = -1,
n = nodes.length,
k = parent.value && (x1 - x0) / parent.value;
while (++i < n) {
node = nodes[i], node.y0 = y0, node.y1 = y1;
node.x0 = x0, node.x1 = x0 += node.value * k;
}
}
function partition() {
var dx = 1,
dy = 1,
padding = 0,
round = false;
function partition(root) {
var n = root.height + 1;
root.x0 =
root.y0 = padding;
root.x1 = dx;
root.y1 = dy / n;
root.eachBefore(positionNode(dy, n));
if (round) root.eachBefore(roundNode);
return root;
}
function positionNode(dy, n) {
return function(node) {
if (node.children) {
treemapDice(node, node.x0, dy * (node.depth + 1) / n, node.x1, dy * (node.depth + 2) / n);
}
var x0 = node.x0,
y0 = node.y0,
x1 = node.x1 - padding,
y1 = node.y1 - padding;
if (x1 < x0) x0 = x1 = (x0 + x1) / 2;
if (y1 < y0) y0 = y1 = (y0 + y1) / 2;
node.x0 = x0;
node.y0 = y0;
node.x1 = x1;
node.y1 = y1;
};
}
partition.round = function(x) {
return arguments.length ? (round = !!x, partition) : round;
};
partition.size = function(x) {
return arguments.length ? (dx = +x[0], dy = +x[1], partition) : [dx, dy];
};
partition.padding = function(x) {
return arguments.length ? (padding = +x, partition) : padding;
};
return partition;
}
var keyPrefix$1 = "$";
var preroot = {depth: -1};
var ambiguous = {};
function defaultId(d) {
return d.id;
}
function defaultParentId(d) {
return d.parentId;
}
function stratify() {
var id = defaultId,
parentId = defaultParentId;
function stratify(data) {
var d,
i,
n = data.length,
root,
parent,
node,
nodes = new Array(n),
nodeId,
nodeKey,
nodeByKey = {};
for (i = 0; i < n; ++i) {
d = data[i], node = nodes[i] = new Node(d);
if ((nodeId = id(d, i, data)) != null && (nodeId += "")) {
nodeKey = keyPrefix$1 + (node.id = nodeId);
nodeByKey[nodeKey] = nodeKey in nodeByKey ? ambiguous : node;
}
}
for (i = 0; i < n; ++i) {
node = nodes[i], nodeId = parentId(data[i], i, data);
if (nodeId == null || !(nodeId += "")) {
if (root) throw new Error("multiple roots");
root = node;
} else {
parent = nodeByKey[keyPrefix$1 + nodeId];
if (!parent) throw new Error("missing: " + nodeId);
if (parent === ambiguous) throw new Error("ambiguous: " + nodeId);
if (parent.children) parent.children.push(node);
else parent.children = [node];
node.parent = parent;
}
}
if (!root) throw new Error("no root");
root.parent = preroot;
root.eachBefore(function(node) { node.depth = node.parent.depth + 1; --n; }).eachBefore(computeHeight);
root.parent = null;
if (n > 0) throw new Error("cycle");
return root;
}
stratify.id = function(x) {
return arguments.length ? (id = required(x), stratify) : id;
};
stratify.parentId = function(x) {
return arguments.length ? (parentId = required(x), stratify) : parentId;
};
return stratify;
}
function defaultSeparation$1(a, b) {
return a.parent === b.parent ? 1 : 2;
}
// function radialSeparation(a, b) {
// return (a.parent === b.parent ? 1 : 2) / a.depth;
// }
// This function is used to traverse the left contour of a subtree (or
// subforest). It returns the successor of v on this contour. This successor is
// either given by the leftmost child of v or by the thread of v. The function
// returns null if and only if v is on the highest level of its subtree.
function nextLeft(v) {
var children = v.children;
return children ? children[0] : v.t;
}
// This function works analogously to nextLeft.
function nextRight(v) {
var children = v.children;
return children ? children[children.length - 1] : v.t;
}
// Shifts the current subtree rooted at w+. This is done by increasing
// prelim(w+) and mod(w+) by shift.
function moveSubtree(wm, wp, shift) {
var change = shift / (wp.i - wm.i);
wp.c -= change;
wp.s += shift;
wm.c += change;
wp.z += shift;
wp.m += shift;
}
// All other shifts, applied to the smaller subtrees between w- and w+, are
// performed by this function. To prepare the shifts, we have to adjust
// change(w+), shift(w+), and change(w-).
function executeShifts(v) {
var shift = 0,
change = 0,
children = v.children,
i = children.length,
w;
while (--i >= 0) {
w = children[i];
w.z += shift;
w.m += shift;
shift += w.s + (change += w.c);
}
}
// If vi-’s ancestor is a sibling of v, returns vi-’s ancestor. Otherwise,
// returns the specified (default) ancestor.
function nextAncestor(vim, v, ancestor) {
return vim.a.parent === v.parent ? vim.a : ancestor;
}
function TreeNode(node, i) {
this._ = node;
this.parent = null;
this.children = null;
this.A = null; // default ancestor
this.a = this; // ancestor
this.z = 0; // prelim
this.m = 0; // mod
this.c = 0; // change
this.s = 0; // shift
this.t = null; // thread
this.i = i; // number
}
TreeNode.prototype = Object.create(Node.prototype);
function treeRoot(root) {
var tree = new TreeNode(root, 0),
node,
nodes = [tree],
child,
children,
i,
n;
while (node = nodes.pop()) {
if (children = node._.children) {
node.children = new Array(n = children.length);
for (i = n - 1; i >= 0; --i) {
nodes.push(child = node.children[i] = new TreeNode(children[i], i));
child.parent = node;
}
}
}
(tree.parent = new TreeNode(null, 0)).children = [tree];
return tree;
}
// Node-link tree diagram using the Reingold-Tilford "tidy" algorithm
function tree() {
var separation = defaultSeparation$1,
dx = 1,
dy = 1,
nodeSize = null;
function tree(root) {
var t = treeRoot(root);
// Compute the layout using Buchheim et al.’s algorithm.
t.eachAfter(firstWalk), t.parent.m = -t.z;
t.eachBefore(secondWalk);
// If a fixed node size is specified, scale x and y.
if (nodeSize) root.eachBefore(sizeNode);
// If a fixed tree size is specified, scale x and y based on the extent.
// Compute the left-most, right-most, and depth-most nodes for extents.
else {
var left = root,
right = root,
bottom = root;
root.eachBefore(function(node) {
if (node.x < left.x) left = node;
if (node.x > right.x) right = node;
if (node.depth > bottom.depth) bottom = node;
});
var s = left === right ? 1 : separation(left, right) / 2,
tx = s - left.x,
kx = dx / (right.x + s + tx),
ky = dy / (bottom.depth || 1);
root.eachBefore(function(node) {
node.x = (node.x + tx) * kx;
node.y = node.depth * ky;
});
}
return root;
}
// Computes a preliminary x-coordinate for v. Before that, FIRST WALK is
// applied recursively to the children of v, as well as the function
// APPORTION. After spacing out the children by calling EXECUTE SHIFTS, the
// node v is placed to the midpoint of its outermost children.
function firstWalk(v) {
var children = v.children,
siblings = v.parent.children,
w = v.i ? siblings[v.i - 1] : null;
if (children) {
executeShifts(v);
var midpoint = (children[0].z + children[children.length - 1].z) / 2;
if (w) {
v.z = w.z + separation(v._, w._);
v.m = v.z - midpoint;
} else {
v.z = midpoint;
}
} else if (w) {
v.z = w.z + separation(v._, w._);
}
v.parent.A = apportion(v, w, v.parent.A || siblings[0]);
}
// Computes all real x-coordinates by summing up the modifiers recursively.
function secondWalk(v) {
v._.x = v.z + v.parent.m;
v.m += v.parent.m;
}
// The core of the algorithm. Here, a new subtree is combined with the
// previous subtrees. Threads are used to traverse the inside and outside
// contours of the left and right subtree up to the highest common level. The
// vertices used for the traversals are vi+, vi-, vo-, and vo+, where the
// superscript o means outside and i means inside, the subscript - means left
// subtree and + means right subtree. For summing up the modifiers along the
// contour, we use respective variables si+, si-, so-, and so+. Whenever two
// nodes of the inside contours conflict, we compute the left one of the
// greatest uncommon ancestors using the function ANCESTOR and call MOVE
// SUBTREE to shift the subtree and prepare the shifts of smaller subtrees.
// Finally, we add a new thread (if necessary).
function apportion(v, w, ancestor) {
if (w) {
var vip = v,
vop = v,
vim = w,
vom = vip.parent.children[0],
sip = vip.m,
sop = vop.m,
sim = vim.m,
som = vom.m,
shift;
while (vim = nextRight(vim), vip = nextLeft(vip), vim && vip) {
vom = nextLeft(vom);
vop = nextRight(vop);
vop.a = v;
shift = vim.z + sim - vip.z - sip + separation(vim._, vip._);
if (shift > 0) {
moveSubtree(nextAncestor(vim, v, ancestor), v, shift);
sip += shift;
sop += shift;
}
sim += vim.m;
sip += vip.m;
som += vom.m;
sop += vop.m;
}
if (vim && !nextRight(vop)) {
vop.t = vim;
vop.m += sim - sop;
}
if (vip && !nextLeft(vom)) {
vom.t = vip;
vom.m += sip - som;
ancestor = v;
}
}
return ancestor;
}
function sizeNode(node) {
node.x *= dx;
node.y = node.depth * dy;
}
tree.separation = function(x) {
return arguments.length ? (separation = x, tree) : separation;
};
tree.size = function(x) {
return arguments.length ? (nodeSize = false, dx = +x[0], dy = +x[1], tree) : (nodeSize ? null : [dx, dy]);
};
tree.nodeSize = function(x) {
return arguments.length ? (nodeSize = true, dx = +x[0], dy = +x[1], tree) : (nodeSize ? [dx, dy] : null);
};
return tree;
}
function treemapSlice(parent, x0, y0, x1, y1) {
var nodes = parent.children,
node,
i = -1,
n = nodes.length,
k = parent.value && (y1 - y0) / parent.value;
while (++i < n) {
node = nodes[i], node.x0 = x0, node.x1 = x1;
node.y0 = y0, node.y1 = y0 += node.value * k;
}
}
var phi = (1 + Math.sqrt(5)) / 2;
function squarifyRatio(ratio, parent, x0, y0, x1, y1) {
var rows = [],
nodes = parent.children,
row,
nodeValue,
i0 = 0,
i1,
n = nodes.length,
dx, dy,
value = parent.value,
sumValue,
minValue,
maxValue,
newRatio,
minRatio,
alpha,
beta;
while (i0 < n) {
dx = x1 - x0, dy = y1 - y0;
minValue = maxValue = sumValue = nodes[i0].value;
alpha = Math.max(dy / dx, dx / dy) / (value * ratio);
beta = sumValue * sumValue * alpha;
minRatio = Math.max(maxValue / beta, beta / minValue);
// Keep adding nodes while the aspect ratio maintains or improves.
for (i1 = i0 + 1; i1 < n; ++i1) {
sumValue += nodeValue = nodes[i1].value;
if (nodeValue < minValue) minValue = nodeValue;
if (nodeValue > maxValue) maxValue = nodeValue;
beta = sumValue * sumValue * alpha;
newRatio = Math.max(maxValue / beta, beta / minValue);
if (newRatio > minRatio) { sumValue -= nodeValue; break; }
minRatio = newRatio;
}
// Position and record the row orientation.
rows.push(row = {value: sumValue, dice: dx < dy, children: nodes.slice(i0, i1)});
if (row.dice) treemapDice(row, x0, y0, x1, value ? y0 += dy * sumValue / value : y1);
else treemapSlice(row, x0, y0, value ? x0 += dx * sumValue / value : x1, y1);
value -= sumValue, i0 = i1;
}
return rows;
}
var squarify = (function custom(ratio) {
function squarify(parent, x0, y0, x1, y1) {
squarifyRatio(ratio, parent, x0, y0, x1, y1);
}
squarify.ratio = function(x) {
return custom((x = +x) > 1 ? x : 1);
};
return squarify;
})(phi);
function index$1() {
var tile = squarify,
round = false,
dx = 1,
dy = 1,
paddingStack = [0],
paddingInner = constantZero,
paddingTop = constantZero,
paddingRight = constantZero,
paddingBottom = constantZero,
paddingLeft = constantZero;
function treemap(root) {
root.x0 =
root.y0 = 0;
root.x1 = dx;
root.y1 = dy;
root.eachBefore(positionNode);
paddingStack = [0];
if (round) root.eachBefore(roundNode);
return root;
}
function positionNode(node) {
var p = paddingStack[node.depth],
x0 = node.x0 + p,
y0 = node.y0 + p,
x1 = node.x1 - p,
y1 = node.y1 - p;
if (x1 < x0) x0 = x1 = (x0 + x1) / 2;
if (y1 < y0) y0 = y1 = (y0 + y1) / 2;
node.x0 = x0;
node.y0 = y0;
node.x1 = x1;
node.y1 = y1;
if (node.children) {
p = paddingStack[node.depth + 1] = paddingInner(node) / 2;
x0 += paddingLeft(node) - p;
y0 += paddingTop(node) - p;
x1 -= paddingRight(node) - p;
y1 -= paddingBottom(node) - p;
if (x1 < x0) x0 = x1 = (x0 + x1) / 2;
if (y1 < y0) y0 = y1 = (y0 + y1) / 2;
tile(node, x0, y0, x1, y1);
}
}
treemap.round = function(x) {
return arguments.length ? (round = !!x, treemap) : round;
};
treemap.size = function(x) {
return arguments.length ? (dx = +x[0], dy = +x[1], treemap) : [dx, dy];
};
treemap.tile = function(x) {
return arguments.length ? (tile = required(x), treemap) : tile;
};
treemap.padding = function(x) {
return arguments.length ? treemap.paddingInner(x).paddingOuter(x) : treemap.paddingInner();
};
treemap.paddingInner = function(x) {
return arguments.length ? (paddingInner = typeof x === "function" ? x : constant$5(+x), treemap) : paddingInner;
};
treemap.paddingOuter = function(x) {
return arguments.length ? treemap.paddingTop(x).paddingRight(x).paddingBottom(x).paddingLeft(x) : treemap.paddingTop();
};
treemap.paddingTop = function(x) {
return arguments.length ? (paddingTop = typeof x === "function" ? x : constant$5(+x), treemap) : paddingTop;
};
treemap.paddingRight = function(x) {
return arguments.length ? (paddingRight = typeof x === "function" ? x : constant$5(+x), treemap) : paddingRight;
};
treemap.paddingBottom = function(x) {
return arguments.length ? (paddingBottom = typeof x === "function" ? x : constant$5(+x), treemap) : paddingBottom;
};
treemap.paddingLeft = function(x) {
return arguments.length ? (paddingLeft = typeof x === "function" ? x : constant$5(+x), treemap) : paddingLeft;
};
return treemap;
}
function binary(parent, x0, y0, x1, y1) {
var nodes = parent.children,
i, n = nodes.length,
sum, sums = new Array(n + 1);
for (sums[0] = sum = i = 0; i < n; ++i) {
sums[i + 1] = sum += nodes[i].value;
}
partition(0, n, parent.value, x0, y0, x1, y1);
function partition(i, j, value, x0, y0, x1, y1) {
if (i >= j - 1) {
var node = nodes[i];
node.x0 = x0, node.y0 = y0;
node.x1 = x1, node.y1 = y1;
return;
}
var valueOffset = sums[i],
valueTarget = (value / 2) + valueOffset,
k = i + 1,
hi = j - 1;
while (k < hi) {
var mid = k + hi >>> 1;
if (sums[mid] < valueTarget) k = mid + 1;
else hi = mid;
}
var valueLeft = sums[k] - valueOffset,
valueRight = value - valueLeft;
if ((y1 - y0) > (x1 - x0)) {
var yk = (y0 * valueRight + y1 * valueLeft) / value;
partition(i, k, valueLeft, x0, y0, x1, yk);
partition(k, j, valueRight, x0, yk, x1, y1);
} else {
var xk = (x0 * valueRight + x1 * valueLeft) / value;
partition(i, k, valueLeft, x0, y0, xk, y1);
partition(k, j, valueRight, xk, y0, x1, y1);
}
}
}
function sliceDice(parent, x0, y0, x1, y1) {
(parent.depth & 1 ? treemapSlice : treemapDice)(parent, x0, y0, x1, y1);
}
var resquarify = (function custom(ratio) {
function resquarify(parent, x0, y0, x1, y1) {
if ((rows = parent._squarify) && (rows.ratio === ratio)) {
var rows,
row,
nodes,
i,
j = -1,
n,
m = rows.length,
value = parent.value;
while (++j < m) {
row = rows[j], nodes = row.children;
for (i = row.value = 0, n = nodes.length; i < n; ++i) row.value += nodes[i].value;
if (row.dice) treemapDice(row, x0, y0, x1, y0 += (y1 - y0) * row.value / value);
else treemapSlice(row, x0, y0, x0 += (x1 - x0) * row.value / value, y1);
value -= row.value;
}
} else {
parent._squarify = rows = squarifyRatio(ratio, parent, x0, y0, x1, y1);
rows.ratio = ratio;
}
}
resquarify.ratio = function(x) {
return custom((x = +x) > 1 ? x : 1);
};
return resquarify;
})(phi);
function center$1(x, y) {
var nodes;
if (x == null) x = 0;
if (y == null) y = 0;
function force() {
var i,
n = nodes.length,
node,
sx = 0,
sy = 0;
for (i = 0; i < n; ++i) {
node = nodes[i], sx += node.x, sy += node.y;
}
for (sx = sx / n - x, sy = sy / n - y, i = 0; i < n; ++i) {
node = nodes[i], node.x -= sx, node.y -= sy;
}
}
force.initialize = function(_) {
nodes = _;
};
force.x = function(_) {
return arguments.length ? (x = +_, force) : x;
};
force.y = function(_) {
return arguments.length ? (y = +_, force) : y;
};
return force;
}
function constant$6(x) {
return function() {
return x;
};
}
function jiggle() {
return (Math.random() - 0.5) * 1e-6;
}
function x$1(d) {
return d.x + d.vx;
}
function y$1(d) {
return d.y + d.vy;
}
function collide(radius) {
var nodes,
radii,
strength = 1,
iterations = 1;
if (typeof radius !== "function") radius = constant$6(radius == null ? 1 : +radius);
function force() {
var i, n = nodes.length,
tree,
node,
xi,
yi,
ri,
ri2;
for (var k = 0; k < iterations; ++k) {
tree = quadtree(nodes, x$1, y$1).visitAfter(prepare);
for (i = 0; i < n; ++i) {
node = nodes[i];
ri = radii[i], ri2 = ri * ri;
xi = node.x + node.vx;
yi = node.y + node.vy;
tree.visit(apply);
}
}
function apply(quad, x0, y0, x1, y1) {
var data = quad.data, rj = quad.r, r = ri + rj;
if (data) {
if (data.index > i) {
var x = xi - data.x - data.vx,
y = yi - data.y - data.vy,
l = x * x + y * y;
if (l < r * r) {
if (x === 0) x = jiggle(), l += x * x;
if (y === 0) y = jiggle(), l += y * y;
l = (r - (l = Math.sqrt(l))) / l * strength;
node.vx += (x *= l) * (r = (rj *= rj) / (ri2 + rj));
node.vy += (y *= l) * r;
data.vx -= x * (r = 1 - r);
data.vy -= y * r;
}
}
return;
}
return x0 > xi + r || x1 < xi - r || y0 > yi + r || y1 < yi - r;
}
}
function prepare(quad) {
if (quad.data) return quad.r = radii[quad.data.index];
for (var i = quad.r = 0; i < 4; ++i) {
if (quad[i] && quad[i].r > quad.r) {
quad.r = quad[i].r;
}
}
}
force.initialize = function(_) {
var i, n = (nodes = _).length; radii = new Array(n);
for (i = 0; i < n; ++i) radii[i] = +radius(nodes[i], i, nodes);
};
force.iterations = function(_) {
return arguments.length ? (iterations = +_, force) : iterations;
};
force.strength = function(_) {
return arguments.length ? (strength = +_, force) : strength;
};
force.radius = function(_) {
return arguments.length ? (radius = typeof _ === "function" ? _ : constant$6(+_), force) : radius;
};
return force;
}
function index$2(d, i) {
return i;
}
function link(links) {
var id = index$2,
strength = defaultStrength,
strengths,
distance = constant$6(30),
distances,
nodes,
count,
bias,
iterations = 1;
if (links == null) links = [];
function defaultStrength(link) {
return 1 / Math.min(count[link.source.index], count[link.target.index]);
}
function force(alpha) {
for (var k = 0, n = links.length; k < iterations; ++k) {
for (var i = 0, link, source, target, x, y, l, b; i < n; ++i) {
link = links[i], source = link.source, target = link.target;
x = target.x + target.vx - source.x - source.vx || jiggle();
y = target.y + target.vy - source.y - source.vy || jiggle();
l = Math.sqrt(x * x + y * y);
l = (l - distances[i]) / l * alpha * strengths[i];
x *= l, y *= l;
target.vx -= x * (b = bias[i]);
target.vy -= y * b;
source.vx += x * (b = 1 - b);
source.vy += y * b;
}
}
}
function initialize() {
if (!nodes) return;
var i,
n = nodes.length,
m = links.length,
nodeById = map$1(nodes, id),
link;
for (i = 0, count = new Array(n); i < n; ++i) {
count[i] = 0;
}
for (i = 0; i < m; ++i) {
link = links[i], link.index = i;
if (typeof link.source !== "object") link.source = nodeById.get(link.source);
if (typeof link.target !== "object") link.target = nodeById.get(link.target);
++count[link.source.index], ++count[link.target.index];
}
for (i = 0, bias = new Array(m); i < m; ++i) {
link = links[i], bias[i] = count[link.source.index] / (count[link.source.index] + count[link.target.index]);
}
strengths = new Array(m), initializeStrength();
distances = new Array(m), initializeDistance();
}
function initializeStrength() {
if (!nodes) return;
for (var i = 0, n = links.length; i < n; ++i) {
strengths[i] = +strength(links[i], i, links);
}
}
function initializeDistance() {
if (!nodes) return;
for (var i = 0, n = links.length; i < n; ++i) {
distances[i] = +distance(links[i], i, links);
}
}
force.initialize = function(_) {
nodes = _;
initialize();
};
force.links = function(_) {
return arguments.length ? (links = _, initialize(), force) : links;
};
force.id = function(_) {
return arguments.length ? (id = _, force) : id;
};
force.iterations = function(_) {
return arguments.length ? (iterations = +_, force) : iterations;
};
force.strength = function(_) {
return arguments.length ? (strength = typeof _ === "function" ? _ : constant$6(+_), initializeStrength(), force) : strength;
};
force.distance = function(_) {
return arguments.length ? (distance = typeof _ === "function" ? _ : constant$6(+_), initializeDistance(), force) : distance;
};
return force;
}
function x$2(d) {
return d.x;
}
function y$2(d) {
return d.y;
}
var initialRadius = 10;
var initialAngle = Math.PI * (3 - Math.sqrt(5));
function simulation(nodes) {
var simulation,
alpha = 1,
alphaMin = 0.001,
alphaDecay = 1 - Math.pow(alphaMin, 1 / 300),
alphaTarget = 0,
velocityDecay = 0.6,
forces = map$1(),
stepper = timer(step),
event = dispatch("tick", "end");
if (nodes == null) nodes = [];
function step() {
tick();
event.call("tick", simulation);
if (alpha < alphaMin) {
stepper.stop();
event.call("end", simulation);
}
}
function tick() {
var i, n = nodes.length, node;
alpha += (alphaTarget - alpha) * alphaDecay;
forces.each(function(force) {
force(alpha);
});
for (i = 0; i < n; ++i) {
node = nodes[i];
if (node.fx == null) node.x += node.vx *= velocityDecay;
else node.x = node.fx, node.vx = 0;
if (node.fy == null) node.y += node.vy *= velocityDecay;
else node.y = node.fy, node.vy = 0;
}
}
function initializeNodes() {
for (var i = 0, n = nodes.length, node; i < n; ++i) {
node = nodes[i], node.index = i;
if (isNaN(node.x) || isNaN(node.y)) {
var radius = initialRadius * Math.sqrt(i), angle = i * initialAngle;
node.x = radius * Math.cos(angle);
node.y = radius * Math.sin(angle);
}
if (isNaN(node.vx) || isNaN(node.vy)) {
node.vx = node.vy = 0;
}
}
}
function initializeForce(force) {
if (force.initialize) force.initialize(nodes);
return force;
}
initializeNodes();
return simulation = {
tick: tick,
restart: function() {
return stepper.restart(step), simulation;
},
stop: function() {
return stepper.stop(), simulation;
},
nodes: function(_) {
return arguments.length ? (nodes = _, initializeNodes(), forces.each(initializeForce), simulation) : nodes;
},
alpha: function(_) {
return arguments.length ? (alpha = +_, simulation) : alpha;
},
alphaMin: function(_) {
return arguments.length ? (alphaMin = +_, simulation) : alphaMin;
},
alphaDecay: function(_) {
return arguments.length ? (alphaDecay = +_, simulation) : +alphaDecay;
},
alphaTarget: function(_) {
return arguments.length ? (alphaTarget = +_, simulation) : alphaTarget;
},
velocityDecay: function(_) {
return arguments.length ? (velocityDecay = 1 - _, simulation) : 1 - velocityDecay;
},
force: function(name, _) {
return arguments.length > 1 ? ((_ == null ? forces.remove(name) : forces.set(name, initializeForce(_))), simulation) : forces.get(name);
},
find: function(x, y, radius) {
var i = 0,
n = nodes.length,
dx,
dy,
d2,
node,
closest;
if (radius == null) radius = Infinity;
else radius *= radius;
for (i = 0; i < n; ++i) {
node = nodes[i];
dx = x - node.x;
dy = y - node.y;
d2 = dx * dx + dy * dy;
if (d2 < radius) closest = node, radius = d2;
}
return closest;
},
on: function(name, _) {
return arguments.length > 1 ? (event.on(name, _), simulation) : event.on(name);
}
};
}
function manyBody() {
var nodes,
node,
alpha,
strength = constant$6(-30),
strengths,
distanceMin2 = 1,
distanceMax2 = Infinity,
theta2 = 0.81;
function force(_) {
var i, n = nodes.length, tree = quadtree(nodes, x$2, y$2).visitAfter(accumulate);
for (alpha = _, i = 0; i < n; ++i) node = nodes[i], tree.visit(apply);
}
function initialize() {
if (!nodes) return;
var i, n = nodes.length;
strengths = new Array(n);
for (i = 0; i < n; ++i) strengths[i] = +strength(nodes[i], i, nodes);
}
function accumulate(quad) {
var strength = 0, q, c, x, y, i;
// For internal nodes, accumulate forces from child quadrants.
if (quad.length) {
for (x = y = i = 0; i < 4; ++i) {
if ((q = quad[i]) && (c = q.value)) {
strength += c, x += c * q.x, y += c * q.y;
}
}
quad.x = x / strength;
quad.y = y / strength;
}
// For leaf nodes, accumulate forces from coincident quadrants.
else {
q = quad;
q.x = q.data.x;
q.y = q.data.y;
do strength += strengths[q.data.index];
while (q = q.next);
}
quad.value = strength;
}
function apply(quad, x1, _, x2) {
if (!quad.value) return true;
var x = quad.x - node.x,
y = quad.y - node.y,
w = x2 - x1,
l = x * x + y * y;
// Apply the Barnes-Hut approximation if possible.
// Limit forces for very close nodes; randomize direction if coincident.
if (w * w / theta2 < l) {
if (l < distanceMax2) {
if (x === 0) x = jiggle(), l += x * x;
if (y === 0) y = jiggle(), l += y * y;
if (l < distanceMin2) l = Math.sqrt(distanceMin2 * l);
node.vx += x * quad.value * alpha / l;
node.vy += y * quad.value * alpha / l;
}
return true;
}
// Otherwise, process points directly.
else if (quad.length || l >= distanceMax2) return;
// Limit forces for very close nodes; randomize direction if coincident.
if (quad.data !== node || quad.next) {
if (x === 0) x = jiggle(), l += x * x;
if (y === 0) y = jiggle(), l += y * y;
if (l < distanceMin2) l = Math.sqrt(distanceMin2 * l);
}
do if (quad.data !== node) {
w = strengths[quad.data.index] * alpha / l;
node.vx += x * w;
node.vy += y * w;
} while (quad = quad.next);
}
force.initialize = function(_) {
nodes = _;
initialize();
};
force.strength = function(_) {
return arguments.length ? (strength = typeof _ === "function" ? _ : constant$6(+_), initialize(), force) : strength;
};
force.distanceMin = function(_) {
return arguments.length ? (distanceMin2 = _ * _, force) : Math.sqrt(distanceMin2);
};
force.distanceMax = function(_) {
return arguments.length ? (distanceMax2 = _ * _, force) : Math.sqrt(distanceMax2);
};
force.theta = function(_) {
return arguments.length ? (theta2 = _ * _, force) : Math.sqrt(theta2);
};
return force;
}
function x$3(x) {
var strength = constant$6(0.1),
nodes,
strengths,
xz;
if (typeof x !== "function") x = constant$6(x == null ? 0 : +x);
function force(alpha) {
for (var i = 0, n = nodes.length, node; i < n; ++i) {
node = nodes[i], node.vx += (xz[i] - node.x) * strengths[i] * alpha;
}
}
function initialize() {
if (!nodes) return;
var i, n = nodes.length;
strengths = new Array(n);
xz = new Array(n);
for (i = 0; i < n; ++i) {
strengths[i] = isNaN(xz[i] = +x(nodes[i], i, nodes)) ? 0 : +strength(nodes[i], i, nodes);
}
}
force.initialize = function(_) {
nodes = _;
initialize();
};
force.strength = function(_) {
return arguments.length ? (strength = typeof _ === "function" ? _ : constant$6(+_), initialize(), force) : strength;
};
force.x = function(_) {
return arguments.length ? (x = typeof _ === "function" ? _ : constant$6(+_), initialize(), force) : x;
};
return force;
}
function y$3(y) {
var strength = constant$6(0.1),
nodes,
strengths,
yz;
if (typeof y !== "function") y = constant$6(y == null ? 0 : +y);
function force(alpha) {
for (var i = 0, n = nodes.length, node; i < n; ++i) {
node = nodes[i], node.vy += (yz[i] - node.y) * strengths[i] * alpha;
}
}
function initialize() {
if (!nodes) return;
var i, n = nodes.length;
strengths = new Array(n);
yz = new Array(n);
for (i = 0; i < n; ++i) {
strengths[i] = isNaN(yz[i] = +y(nodes[i], i, nodes)) ? 0 : +strength(nodes[i], i, nodes);
}
}
force.initialize = function(_) {
nodes = _;
initialize();
};
force.strength = function(_) {
return arguments.length ? (strength = typeof _ === "function" ? _ : constant$6(+_), initialize(), force) : strength;
};
force.y = function(_) {
return arguments.length ? (y = typeof _ === "function" ? _ : constant$6(+_), initialize(), force) : y;
};
return force;
}
function nopropagation() {
exports.event.stopImmediatePropagation();
}
function noevent() {
exports.event.preventDefault();
exports.event.stopImmediatePropagation();
}
function dragDisable(view) {
var root = view.document.documentElement,
selection = select(view).on("dragstart.drag", noevent, true);
if ("onselectstart" in root) {
selection.on("selectstart.drag", noevent, true);
} else {
root.__noselect = root.style.MozUserSelect;
root.style.MozUserSelect = "none";
}
}
function dragEnable(view, noclick) {
var root = view.document.documentElement,
selection = select(view).on("dragstart.drag", null);
if (noclick) {
selection.on("click.drag", noevent, true);
setTimeout(function() { selection.on("click.drag", null); }, 0);
}
if ("onselectstart" in root) {
selection.on("selectstart.drag", null);
} else {
root.style.MozUserSelect = root.__noselect;
delete root.__noselect;
}
}
function constant$7(x) {
return function() {
return x;
};
}
function DragEvent(target, type, subject, id, active, x, y, dx, dy, dispatch) {
this.target = target;
this.type = type;
this.subject = subject;
this.identifier = id;
this.active = active;
this.x = x;
this.y = y;
this.dx = dx;
this.dy = dy;
this._ = dispatch;
}
DragEvent.prototype.on = function() {
var value = this._.on.apply(this._, arguments);
return value === this._ ? this : value;
};
// Ignore right-click, since that should open the context menu.
function defaultFilter() {
return !exports.event.button;
}
function defaultContainer() {
return this.parentNode;
}
function defaultSubject(d) {
return d == null ? {x: exports.event.x, y: exports.event.y} : d;
}
function drag() {
var filter = defaultFilter,
container = defaultContainer,
subject = defaultSubject,
gestures = {},
listeners = dispatch("start", "drag", "end"),
active = 0,
mousemoving,
touchending;
function drag(selection) {
selection
.on("mousedown.drag", mousedowned)
.on("touchstart.drag", touchstarted)
.on("touchmove.drag", touchmoved)
.on("touchend.drag touchcancel.drag", touchended)
.style("-webkit-tap-highlight-color", "rgba(0,0,0,0)");
}
function mousedowned() {
if (touchending || !filter.apply(this, arguments)) return;
var gesture = beforestart("mouse", container.apply(this, arguments), mouse, this, arguments);
if (!gesture) return;
select(exports.event.view).on("mousemove.drag", mousemoved, true).on("mouseup.drag", mouseupped, true);
dragDisable(exports.event.view);
nopropagation();
mousemoving = false;
gesture("start");
}
function mousemoved() {
noevent();
mousemoving = true;
gestures.mouse("drag");
}
function mouseupped() {
select(exports.event.view).on("mousemove.drag mouseup.drag", null);
dragEnable(exports.event.view, mousemoving);
noevent();
gestures.mouse("end");
}
function touchstarted() {
if (!filter.apply(this, arguments)) return;
var touches = exports.event.changedTouches,
c = container.apply(this, arguments),
n = touches.length, i, gesture;
for (i = 0; i < n; ++i) {
if (gesture = beforestart(touches[i].identifier, c, touch, this, arguments)) {
nopropagation();
gesture("start");
}
}
}
function touchmoved() {
var touches = exports.event.changedTouches,
n = touches.length, i, gesture;
for (i = 0; i < n; ++i) {
if (gesture = gestures[touches[i].identifier]) {
noevent();
gesture("drag");
}
}
}
function touchended() {
var touches = exports.event.changedTouches,
n = touches.length, i, gesture;
if (touchending) clearTimeout(touchending);
touchending = setTimeout(function() { touchending = null; }, 500); // Ghost clicks are delayed!
for (i = 0; i < n; ++i) {
if (gesture = gestures[touches[i].identifier]) {
nopropagation();
gesture("end");
}
}
}
function beforestart(id, container, point, that, args) {
var p = point(container, id), s, dx, dy,
sublisteners = listeners.copy();
if (!customEvent(new DragEvent(drag, "beforestart", s, id, active, p[0], p[1], 0, 0, sublisteners), function() {
if ((exports.event.subject = s = subject.apply(that, args)) == null) return false;
dx = s.x - p[0] || 0;
dy = s.y - p[1] || 0;
return true;
})) return;
return function gesture(type) {
var p0 = p, n;
switch (type) {
case "start": gestures[id] = gesture, n = active++; break;
case "end": delete gestures[id], --active; // nobreak
case "drag": p = point(container, id), n = active; break;
}
customEvent(new DragEvent(drag, type, s, id, n, p[0] + dx, p[1] + dy, p[0] - p0[0], p[1] - p0[1], sublisteners), sublisteners.apply, sublisteners, [type, that, args]);
};
}
drag.filter = function(_) {
return arguments.length ? (filter = typeof _ === "function" ? _ : constant$7(!!_), drag) : filter;
};
drag.container = function(_) {
return arguments.length ? (container = typeof _ === "function" ? _ : constant$7(_), drag) : container;
};
drag.subject = function(_) {
return arguments.length ? (subject = typeof _ === "function" ? _ : constant$7(_), drag) : subject;
};
drag.on = function() {
var value = listeners.on.apply(listeners, arguments);
return value === listeners ? drag : value;
};
return drag;
}
function constant$8(x) {
return function() {
return x;
};
}
function x$4(d) {
return d[0];
}
function y$4(d) {
return d[1];
}
function RedBlackTree() {
this._ = null; // root node
}
function RedBlackNode(node) {
node.U = // parent node
node.C = // color - true for red, false for black
node.L = // left node
node.R = // right node
node.P = // previous node
node.N = null; // next node
}
RedBlackTree.prototype = {
constructor: RedBlackTree,
insert: function(after, node) {
var parent, grandpa, uncle;
if (after) {
node.P = after;
node.N = after.N;
if (after.N) after.N.P = node;
after.N = node;
if (after.R) {
after = after.R;
while (after.L) after = after.L;
after.L = node;
} else {
after.R = node;
}
parent = after;
} else if (this._) {
after = RedBlackFirst(this._);
node.P = null;
node.N = after;
after.P = after.L = node;
parent = after;
} else {
node.P = node.N = null;
this._ = node;
parent = null;
}
node.L = node.R = null;
node.U = parent;
node.C = true;
after = node;
while (parent && parent.C) {
grandpa = parent.U;
if (parent === grandpa.L) {
uncle = grandpa.R;
if (uncle && uncle.C) {
parent.C = uncle.C = false;
grandpa.C = true;
after = grandpa;
} else {
if (after === parent.R) {
RedBlackRotateLeft(this, parent);
after = parent;
parent = after.U;
}
parent.C = false;
grandpa.C = true;
RedBlackRotateRight(this, grandpa);
}
} else {
uncle = grandpa.L;
if (uncle && uncle.C) {
parent.C = uncle.C = false;
grandpa.C = true;
after = grandpa;
} else {
if (after === parent.L) {
RedBlackRotateRight(this, parent);
after = parent;
parent = after.U;
}
parent.C = false;
grandpa.C = true;
RedBlackRotateLeft(this, grandpa);
}
}
parent = after.U;
}
this._.C = false;
},
remove: function(node) {
if (node.N) node.N.P = node.P;
if (node.P) node.P.N = node.N;
node.N = node.P = null;
var parent = node.U,
sibling,
left = node.L,
right = node.R,
next,
red;
if (!left) next = right;
else if (!right) next = left;
else next = RedBlackFirst(right);
if (parent) {
if (parent.L === node) parent.L = next;
else parent.R = next;
} else {
this._ = next;
}
if (left && right) {
red = next.C;
next.C = node.C;
next.L = left;
left.U = next;
if (next !== right) {
parent = next.U;
next.U = node.U;
node = next.R;
parent.L = node;
next.R = right;
right.U = next;
} else {
next.U = parent;
parent = next;
node = next.R;
}
} else {
red = node.C;
node = next;
}
if (node) node.U = parent;
if (red) return;
if (node && node.C) { node.C = false; return; }
do {
if (node === this._) break;
if (node === parent.L) {
sibling = parent.R;
if (sibling.C) {
sibling.C = false;
parent.C = true;
RedBlackRotateLeft(this, parent);
sibling = parent.R;
}
if ((sibling.L && sibling.L.C)
|| (sibling.R && sibling.R.C)) {
if (!sibling.R || !sibling.R.C) {
sibling.L.C = false;
sibling.C = true;
RedBlackRotateRight(this, sibling);
sibling = parent.R;
}
sibling.C = parent.C;
parent.C = sibling.R.C = false;
RedBlackRotateLeft(this, parent);
node = this._;
break;
}
} else {
sibling = parent.L;
if (sibling.C) {
sibling.C = false;
parent.C = true;
RedBlackRotateRight(this, parent);
sibling = parent.L;
}
if ((sibling.L && sibling.L.C)
|| (sibling.R && sibling.R.C)) {
if (!sibling.L || !sibling.L.C) {
sibling.R.C = false;
sibling.C = true;
RedBlackRotateLeft(this, sibling);
sibling = parent.L;
}
sibling.C = parent.C;
parent.C = sibling.L.C = false;
RedBlackRotateRight(this, parent);
node = this._;
break;
}
}
sibling.C = true;
node = parent;
parent = parent.U;
} while (!node.C);
if (node) node.C = false;
}
};
function RedBlackRotateLeft(tree, node) {
var p = node,
q = node.R,
parent = p.U;
if (parent) {
if (parent.L === p) parent.L = q;
else parent.R = q;
} else {
tree._ = q;
}
q.U = parent;
p.U = q;
p.R = q.L;
if (p.R) p.R.U = p;
q.L = p;
}
function RedBlackRotateRight(tree, node) {
var p = node,
q = node.L,
parent = p.U;
if (parent) {
if (parent.L === p) parent.L = q;
else parent.R = q;
} else {
tree._ = q;
}
q.U = parent;
p.U = q;
p.L = q.R;
if (p.L) p.L.U = p;
q.R = p;
}
function RedBlackFirst(node) {
while (node.L) node = node.L;
return node;
}
function createEdge(left, right, v0, v1) {
var edge = [null, null],
index = edges.push(edge) - 1;
edge.left = left;
edge.right = right;
if (v0) setEdgeEnd(edge, left, right, v0);
if (v1) setEdgeEnd(edge, right, left, v1);
cells[left.index].halfedges.push(index);
cells[right.index].halfedges.push(index);
return edge;
}
function createBorderEdge(left, v0, v1) {
var edge = [v0, v1];
edge.left = left;
return edge;
}
function setEdgeEnd(edge, left, right, vertex) {
if (!edge[0] && !edge[1]) {
edge[0] = vertex;
edge.left = left;
edge.right = right;
} else if (edge.left === right) {
edge[1] = vertex;
} else {
edge[0] = vertex;
}
}
// Liang–Barsky line clipping.
function clipEdge(edge, x0, y0, x1, y1) {
var a = edge[0],
b = edge[1],
ax = a[0],
ay = a[1],
bx = b[0],
by = b[1],
t0 = 0,
t1 = 1,
dx = bx - ax,
dy = by - ay,
r;
r = x0 - ax;
if (!dx && r > 0) return;
r /= dx;
if (dx < 0) {
if (r < t0) return;
if (r < t1) t1 = r;
} else if (dx > 0) {
if (r > t1) return;
if (r > t0) t0 = r;
}
r = x1 - ax;
if (!dx && r < 0) return;
r /= dx;
if (dx < 0) {
if (r > t1) return;
if (r > t0) t0 = r;
} else if (dx > 0) {
if (r < t0) return;
if (r < t1) t1 = r;
}
r = y0 - ay;
if (!dy && r > 0) return;
r /= dy;
if (dy < 0) {
if (r < t0) return;
if (r < t1) t1 = r;
} else if (dy > 0) {
if (r > t1) return;
if (r > t0) t0 = r;
}
r = y1 - ay;
if (!dy && r < 0) return;
r /= dy;
if (dy < 0) {
if (r > t1) return;
if (r > t0) t0 = r;
} else if (dy > 0) {
if (r < t0) return;
if (r < t1) t1 = r;
}
if (!(t0 > 0) && !(t1 < 1)) return true; // TODO Better check?
if (t0 > 0) edge[0] = [ax + t0 * dx, ay + t0 * dy];
if (t1 < 1) edge[1] = [ax + t1 * dx, ay + t1 * dy];
return true;
}
function connectEdge(edge, x0, y0, x1, y1) {
var v1 = edge[1];
if (v1) return true;
var v0 = edge[0],
left = edge.left,
right = edge.right,
lx = left[0],
ly = left[1],
rx = right[0],
ry = right[1],
fx = (lx + rx) / 2,
fy = (ly + ry) / 2,
fm,
fb;
if (ry === ly) {
if (fx < x0 || fx >= x1) return;
if (lx > rx) {
if (!v0) v0 = [fx, y0];
else if (v0[1] >= y1) return;
v1 = [fx, y1];
} else {
if (!v0) v0 = [fx, y1];
else if (v0[1] < y0) return;
v1 = [fx, y0];
}
} else {
fm = (lx - rx) / (ry - ly);
fb = fy - fm * fx;
if (fm < -1 || fm > 1) {
if (lx > rx) {
if (!v0) v0 = [(y0 - fb) / fm, y0];
else if (v0[1] >= y1) return;
v1 = [(y1 - fb) / fm, y1];
} else {
if (!v0) v0 = [(y1 - fb) / fm, y1];
else if (v0[1] < y0) return;
v1 = [(y0 - fb) / fm, y0];
}
} else {
if (ly < ry) {
if (!v0) v0 = [x0, fm * x0 + fb];
else if (v0[0] >= x1) return;
v1 = [x1, fm * x1 + fb];
} else {
if (!v0) v0 = [x1, fm * x1 + fb];
else if (v0[0] < x0) return;
v1 = [x0, fm * x0 + fb];
}
}
}
edge[0] = v0;
edge[1] = v1;
return true;
}
function clipEdges(x0, y0, x1, y1) {
var i = edges.length,
edge;
while (i--) {
if (!connectEdge(edge = edges[i], x0, y0, x1, y1)
|| !clipEdge(edge, x0, y0, x1, y1)
|| !(Math.abs(edge[0][0] - edge[1][0]) > epsilon$3
|| Math.abs(edge[0][1] - edge[1][1]) > epsilon$3)) {
delete edges[i];
}
}
}
function createCell(site) {
return cells[site.index] = {
site: site,
halfedges: []
};
}
function cellHalfedgeAngle(cell, edge) {
var site = cell.site,
va = edge.left,
vb = edge.right;
if (site === vb) vb = va, va = site;
if (vb) return Math.atan2(vb[1] - va[1], vb[0] - va[0]);
if (site === va) va = edge[1], vb = edge[0];
else va = edge[0], vb = edge[1];
return Math.atan2(va[0] - vb[0], vb[1] - va[1]);
}
function cellHalfedgeStart(cell, edge) {
return edge[+(edge.left !== cell.site)];
}
function cellHalfedgeEnd(cell, edge) {
return edge[+(edge.left === cell.site)];
}
function sortCellHalfedges() {
for (var i = 0, n = cells.length, cell, halfedges, j, m; i < n; ++i) {
if ((cell = cells[i]) && (m = (halfedges = cell.halfedges).length)) {
var index = new Array(m),
array = new Array(m);
for (j = 0; j < m; ++j) index[j] = j, array[j] = cellHalfedgeAngle(cell, edges[halfedges[j]]);
index.sort(function(i, j) { return array[j] - array[i]; });
for (j = 0; j < m; ++j) array[j] = halfedges[index[j]];
for (j = 0; j < m; ++j) halfedges[j] = array[j];
}
}
}
function clipCells(x0, y0, x1, y1) {
var nCells = cells.length,
iCell,
cell,
site,
iHalfedge,
halfedges,
nHalfedges,
start,
startX,
startY,
end,
endX,
endY,
cover = true;
for (iCell = 0; iCell < nCells; ++iCell) {
if (cell = cells[iCell]) {
site = cell.site;
halfedges = cell.halfedges;
iHalfedge = halfedges.length;
// Remove any dangling clipped edges.
while (iHalfedge--) {
if (!edges[halfedges[iHalfedge]]) {
halfedges.splice(iHalfedge, 1);
}
}
// Insert any border edges as necessary.
iHalfedge = 0, nHalfedges = halfedges.length;
while (iHalfedge < nHalfedges) {
end = cellHalfedgeEnd(cell, edges[halfedges[iHalfedge]]), endX = end[0], endY = end[1];
start = cellHalfedgeStart(cell, edges[halfedges[++iHalfedge % nHalfedges]]), startX = start[0], startY = start[1];
if (Math.abs(endX - startX) > epsilon$3 || Math.abs(endY - startY) > epsilon$3) {
halfedges.splice(iHalfedge, 0, edges.push(createBorderEdge(site, end,
Math.abs(endX - x0) < epsilon$3 && y1 - endY > epsilon$3 ? [x0, Math.abs(startX - x0) < epsilon$3 ? startY : y1]
: Math.abs(endY - y1) < epsilon$3 && x1 - endX > epsilon$3 ? [Math.abs(startY - y1) < epsilon$3 ? startX : x1, y1]
: Math.abs(endX - x1) < epsilon$3 && endY - y0 > epsilon$3 ? [x1, Math.abs(startX - x1) < epsilon$3 ? startY : y0]
: Math.abs(endY - y0) < epsilon$3 && endX - x0 > epsilon$3 ? [Math.abs(startY - y0) < epsilon$3 ? startX : x0, y0]
: null)) - 1);
++nHalfedges;
}
}
if (nHalfedges) cover = false;
}
}
// If there weren’t any edges, have the closest site cover the extent.
// It doesn’t matter which corner of the extent we measure!
if (cover) {
var dx, dy, d2, dc = Infinity;
for (iCell = 0, cover = null; iCell < nCells; ++iCell) {
if (cell = cells[iCell]) {
site = cell.site;
dx = site[0] - x0;
dy = site[1] - y0;
d2 = dx * dx + dy * dy;
if (d2 < dc) dc = d2, cover = cell;
}
}
if (cover) {
var v00 = [x0, y0], v01 = [x0, y1], v11 = [x1, y1], v10 = [x1, y0];
cover.halfedges.push(
edges.push(createBorderEdge(site = cover.site, v00, v01)) - 1,
edges.push(createBorderEdge(site, v01, v11)) - 1,
edges.push(createBorderEdge(site, v11, v10)) - 1,
edges.push(createBorderEdge(site, v10, v00)) - 1
);
}
}
// Lastly delete any cells with no edges; these were entirely clipped.
for (iCell = 0; iCell < nCells; ++iCell) {
if (cell = cells[iCell]) {
if (!cell.halfedges.length) {
delete cells[iCell];
}
}
}
}
var circlePool = [];
var firstCircle;
function Circle() {
RedBlackNode(this);
this.x =
this.y =
this.arc =
this.site =
this.cy = null;
}
function attachCircle(arc) {
var lArc = arc.P,
rArc = arc.N;
if (!lArc || !rArc) return;
var lSite = lArc.site,
cSite = arc.site,
rSite = rArc.site;
if (lSite === rSite) return;
var bx = cSite[0],
by = cSite[1],
ax = lSite[0] - bx,
ay = lSite[1] - by,
cx = rSite[0] - bx,
cy = rSite[1] - by;
var d = 2 * (ax * cy - ay * cx);
if (d >= -epsilon2$1) return;
var ha = ax * ax + ay * ay,
hc = cx * cx + cy * cy,
x = (cy * ha - ay * hc) / d,
y = (ax * hc - cx * ha) / d;
var circle = circlePool.pop() || new Circle;
circle.arc = arc;
circle.site = cSite;
circle.x = x + bx;
circle.y = (circle.cy = y + by) + Math.sqrt(x * x + y * y); // y bottom
arc.circle = circle;
var before = null,
node = circles._;
while (node) {
if (circle.y < node.y || (circle.y === node.y && circle.x <= node.x)) {
if (node.L) node = node.L;
else { before = node.P; break; }
} else {
if (node.R) node = node.R;
else { before = node; break; }
}
}
circles.insert(before, circle);
if (!before) firstCircle = circle;
}
function detachCircle(arc) {
var circle = arc.circle;
if (circle) {
if (!circle.P) firstCircle = circle.N;
circles.remove(circle);
circlePool.push(circle);
RedBlackNode(circle);
arc.circle = null;
}
}
var beachPool = [];
function Beach() {
RedBlackNode(this);
this.edge =
this.site =
this.circle = null;
}
function createBeach(site) {
var beach = beachPool.pop() || new Beach;
beach.site = site;
return beach;
}
function detachBeach(beach) {
detachCircle(beach);
beaches.remove(beach);
beachPool.push(beach);
RedBlackNode(beach);
}
function removeBeach(beach) {
var circle = beach.circle,
x = circle.x,
y = circle.cy,
vertex = [x, y],
previous = beach.P,
next = beach.N,
disappearing = [beach];
detachBeach(beach);
var lArc = previous;
while (lArc.circle
&& Math.abs(x - lArc.circle.x) < epsilon$3
&& Math.abs(y - lArc.circle.cy) < epsilon$3) {
previous = lArc.P;
disappearing.unshift(lArc);
detachBeach(lArc);
lArc = previous;
}
disappearing.unshift(lArc);
detachCircle(lArc);
var rArc = next;
while (rArc.circle
&& Math.abs(x - rArc.circle.x) < epsilon$3
&& Math.abs(y - rArc.circle.cy) < epsilon$3) {
next = rArc.N;
disappearing.push(rArc);
detachBeach(rArc);
rArc = next;
}
disappearing.push(rArc);
detachCircle(rArc);
var nArcs = disappearing.length,
iArc;
for (iArc = 1; iArc < nArcs; ++iArc) {
rArc = disappearing[iArc];
lArc = disappearing[iArc - 1];
setEdgeEnd(rArc.edge, lArc.site, rArc.site, vertex);
}
lArc = disappearing[0];
rArc = disappearing[nArcs - 1];
rArc.edge = createEdge(lArc.site, rArc.site, null, vertex);
attachCircle(lArc);
attachCircle(rArc);
}
function addBeach(site) {
var x = site[0],
directrix = site[1],
lArc,
rArc,
dxl,
dxr,
node = beaches._;
while (node) {
dxl = leftBreakPoint(node, directrix) - x;
if (dxl > epsilon$3) node = node.L; else {
dxr = x - rightBreakPoint(node, directrix);
if (dxr > epsilon$3) {
if (!node.R) {
lArc = node;
break;
}
node = node.R;
} else {
if (dxl > -epsilon$3) {
lArc = node.P;
rArc = node;
} else if (dxr > -epsilon$3) {
lArc = node;
rArc = node.N;
} else {
lArc = rArc = node;
}
break;
}
}
}
createCell(site);
var newArc = createBeach(site);
beaches.insert(lArc, newArc);
if (!lArc && !rArc) return;
if (lArc === rArc) {
detachCircle(lArc);
rArc = createBeach(lArc.site);
beaches.insert(newArc, rArc);
newArc.edge = rArc.edge = createEdge(lArc.site, newArc.site);
attachCircle(lArc);
attachCircle(rArc);
return;
}
if (!rArc) { // && lArc
newArc.edge = createEdge(lArc.site, newArc.site);
return;
}
// else lArc !== rArc
detachCircle(lArc);
detachCircle(rArc);
var lSite = lArc.site,
ax = lSite[0],
ay = lSite[1],
bx = site[0] - ax,
by = site[1] - ay,
rSite = rArc.site,
cx = rSite[0] - ax,
cy = rSite[1] - ay,
d = 2 * (bx * cy - by * cx),
hb = bx * bx + by * by,
hc = cx * cx + cy * cy,
vertex = [(cy * hb - by * hc) / d + ax, (bx * hc - cx * hb) / d + ay];
setEdgeEnd(rArc.edge, lSite, rSite, vertex);
newArc.edge = createEdge(lSite, site, null, vertex);
rArc.edge = createEdge(site, rSite, null, vertex);
attachCircle(lArc);
attachCircle(rArc);
}
function leftBreakPoint(arc, directrix) {
var site = arc.site,
rfocx = site[0],
rfocy = site[1],
pby2 = rfocy - directrix;
if (!pby2) return rfocx;
var lArc = arc.P;
if (!lArc) return -Infinity;
site = lArc.site;
var lfocx = site[0],
lfocy = site[1],
plby2 = lfocy - directrix;
if (!plby2) return lfocx;
var hl = lfocx - rfocx,
aby2 = 1 / pby2 - 1 / plby2,
b = hl / plby2;
if (aby2) return (-b + Math.sqrt(b * b - 2 * aby2 * (hl * hl / (-2 * plby2) - lfocy + plby2 / 2 + rfocy - pby2 / 2))) / aby2 + rfocx;
return (rfocx + lfocx) / 2;
}
function rightBreakPoint(arc, directrix) {
var rArc = arc.N;
if (rArc) return leftBreakPoint(rArc, directrix);
var site = arc.site;
return site[1] === directrix ? site[0] : Infinity;
}
var epsilon$3 = 1e-6;
var epsilon2$1 = 1e-12;
var beaches;
var cells;
var circles;
var edges;
function triangleArea(a, b, c) {
return (a[0] - c[0]) * (b[1] - a[1]) - (a[0] - b[0]) * (c[1] - a[1]);
}
function lexicographic(a, b) {
return b[1] - a[1]
|| b[0] - a[0];
}
function Diagram(sites, extent) {
var site = sites.sort(lexicographic).pop(),
x,
y,
circle;
edges = [];
cells = new Array(sites.length);
beaches = new RedBlackTree;
circles = new RedBlackTree;
while (true) {
circle = firstCircle;
if (site && (!circle || site[1] < circle.y || (site[1] === circle.y && site[0] < circle.x))) {
if (site[0] !== x || site[1] !== y) {
addBeach(site);
x = site[0], y = site[1];
}
site = sites.pop();
} else if (circle) {
removeBeach(circle.arc);
} else {
break;
}
}
sortCellHalfedges();
if (extent) {
var x0 = +extent[0][0],
y0 = +extent[0][1],
x1 = +extent[1][0],
y1 = +extent[1][1];
clipEdges(x0, y0, x1, y1);
clipCells(x0, y0, x1, y1);
}
this.edges = edges;
this.cells = cells;
beaches =
circles =
edges =
cells = null;
}
Diagram.prototype = {
constructor: Diagram,
polygons: function() {
var edges = this.edges;
return this.cells.map(function(cell) {
var polygon = cell.halfedges.map(function(i) { return cellHalfedgeStart(cell, edges[i]); });
polygon.data = cell.site.data;
return polygon;
});
},
triangles: function() {
var triangles = [],
edges = this.edges;
this.cells.forEach(function(cell, i) {
var site = cell.site,
halfedges = cell.halfedges,
j = -1,
m = halfedges.length,
s0,
e1 = edges[halfedges[m - 1]],
s1 = e1.left === site ? e1.right : e1.left;
while (++j < m) {
s0 = s1;
e1 = edges[halfedges[j]];
s1 = e1.left === site ? e1.right : e1.left;
if (i < s0.index && i < s1.index && triangleArea(site, s0, s1) < 0) {
triangles.push([site.data, s0.data, s1.data]);
}
}
});
return triangles;
},
links: function() {
return this.edges.filter(function(edge) {
return edge.right;
}).map(function(edge) {
return {
source: edge.left.data,
target: edge.right.data
};
});
}
}
function voronoi() {
var x = x$4,
y = y$4,
extent = null;
function voronoi(data) {
return new Diagram(data.map(function(d, i) {
var s = [Math.round(x(d, i, data) / epsilon$3) * epsilon$3, Math.round(y(d, i, data) / epsilon$3) * epsilon$3];
s.index = i;
s.data = d;
return s;
}), extent);
}
voronoi.polygons = function(data) {
return voronoi(data).polygons();
};
voronoi.links = function(data) {
return voronoi(data).links();
};
voronoi.triangles = function(data) {
return voronoi(data).triangles();
};
voronoi.x = function(_) {
return arguments.length ? (x = typeof _ === "function" ? _ : constant$8(+_), voronoi) : x;
};
voronoi.y = function(_) {
return arguments.length ? (y = typeof _ === "function" ? _ : constant$8(+_), voronoi) : y;
};
voronoi.extent = function(_) {
return arguments.length ? (extent = _ == null ? null : [[+_[0][0], +_[0][1]], [+_[1][0], +_[1][1]]], voronoi) : extent && [[extent[0][0], extent[0][1]], [extent[1][0], extent[1][1]]];
};
voronoi.size = function(_) {
return arguments.length ? (extent = _ == null ? null : [[0, 0], [+_[0], +_[1]]], voronoi) : extent && [extent[1][0] - extent[0][0], extent[1][1] - extent[0][1]];
};
return voronoi;
}
function constant$9(x) {
return function() {
return x;
};
}
function ZoomEvent(target, type, transform) {
this.target = target;
this.type = type;
this.transform = transform;
}
function Transform(k, x, y) {
this.k = k;
this.x = x;
this.y = y;
}
Transform.prototype = {
constructor: Transform,
scale: function(k) {
return k === 1 ? this : new Transform(this.k * k, this.x, this.y);
},
translate: function(x, y) {
return x === 0 & y === 0 ? this : new Transform(this.k, this.x + this.k * x, this.y + this.k * y);
},
apply: function(point) {
return [point[0] * this.k + this.x, point[1] * this.k + this.y];
},
applyX: function(x) {
return x * this.k + this.x;
},
applyY: function(y) {
return y * this.k + this.y;
},
invert: function(location) {
return [(location[0] - this.x) / this.k, (location[1] - this.y) / this.k];
},
invertX: function(x) {
return (x - this.x) / this.k;
},
invertY: function(y) {
return (y - this.y) / this.k;
},
rescaleX: function(x) {
return x.copy().domain(x.range().map(this.invertX, this).map(x.invert, x));
},
rescaleY: function(y) {
return y.copy().domain(y.range().map(this.invertY, this).map(y.invert, y));
},
toString: function() {
return "translate(" + this.x + "," + this.y + ") scale(" + this.k + ")";
}
};
var identity$6 = new Transform(1, 0, 0);
transform.prototype = Transform.prototype;
function transform(node) {
return node.__zoom || identity$6;
}
function nopropagation$1() {
exports.event.stopImmediatePropagation();
}
function noevent$1() {
exports.event.preventDefault();
exports.event.stopImmediatePropagation();
}
// Ignore right-click, since that should open the context menu.
function defaultFilter$1() {
return !exports.event.button;
}
function defaultExtent() {
var e = this, w, h;
if (e instanceof SVGElement) {
e = e.ownerSVGElement || e;
w = e.width.baseVal.value;
h = e.height.baseVal.value;
} else {
w = e.clientWidth;
h = e.clientHeight;
}
return [[0, 0], [w, h]];
}
function defaultTransform() {
return this.__zoom || identity$6;
}
function zoom() {
var filter = defaultFilter$1,
extent = defaultExtent,
k0 = 0,
k1 = Infinity,
x0 = -k1,
x1 = k1,
y0 = x0,
y1 = x1,
duration = 250,
gestures = [],
listeners = dispatch("start", "zoom", "end"),
touchstarting,
touchending,
touchDelay = 500,
wheelDelay = 150;
function zoom(selection) {
selection
.on("wheel.zoom", wheeled)
.on("mousedown.zoom", mousedowned)
.on("dblclick.zoom", dblclicked)
.on("touchstart.zoom", touchstarted)
.on("touchmove.zoom", touchmoved)
.on("touchend.zoom touchcancel.zoom", touchended)
.style("-webkit-tap-highlight-color", "rgba(0,0,0,0)")
.property("__zoom", defaultTransform);
}
zoom.transform = function(collection, transform) {
var selection = collection.selection ? collection.selection() : collection;
selection.property("__zoom", defaultTransform);
if (collection !== selection) {
schedule(collection, transform);
} else {
selection.interrupt().each(function() {
gesture(this, arguments)
.start()
.zoom(null, typeof transform === "function" ? transform.apply(this, arguments) : transform)
.end();
});
}
};
zoom.scaleBy = function(selection, k) {
zoom.scaleTo(selection, function() {
var k0 = this.__zoom.k,
k1 = typeof k === "function" ? k.apply(this, arguments) : k;
return k0 * k1;
});
};
zoom.scaleTo = function(selection, k) {
zoom.transform(selection, function() {
var e = extent.apply(this, arguments),
t0 = this.__zoom,
p0 = centroid(e),
p1 = t0.invert(p0),
k1 = typeof k === "function" ? k.apply(this, arguments) : k;
return constrain(translate(scale(t0, k1), p0, p1), e);
});
};
zoom.translateBy = function(selection, x, y) {
zoom.transform(selection, function() {
return constrain(this.__zoom.translate(
typeof x === "function" ? x.apply(this, arguments) : x,
typeof y === "function" ? y.apply(this, arguments) : y
), extent.apply(this, arguments));
});
};
function scale(transform, k) {
k = Math.max(k0, Math.min(k1, k));
return k === transform.k ? transform : new Transform(k, transform.x, transform.y);
}
function translate(transform, p0, p1) {
var x = p0[0] - p1[0] * transform.k, y = p0[1] - p1[1] * transform.k;
return x === transform.x && y === transform.y ? transform : new Transform(transform.k, x, y);
}
function constrain(transform, extent) {
var dx = Math.min(0, transform.invertX(extent[0][0]) - x0) || Math.max(0, transform.invertX(extent[1][0]) - x1),
dy = Math.min(0, transform.invertY(extent[0][1]) - y0) || Math.max(0, transform.invertY(extent[1][1]) - y1);
return dx || dy ? transform.translate(dx, dy) : transform;
}
function centroid(extent) {
return [(+extent[0][0] + +extent[1][0]) / 2, (+extent[0][1] + +extent[1][1]) / 2];
}
function schedule(transition, transform, center) {
transition
.on("start.zoom", function() { gesture(this, arguments).start(); })
.on("interrupt.zoom end.zoom", function() { gesture(this, arguments).end(); })
.tween("zoom", function() {
var that = this,
args = arguments,
g = gesture(that, args),
e = extent.apply(that, args),
p = center || centroid(e),
w = Math.max(e[1][0] - e[0][0], e[1][1] - e[0][1]),
a = that.__zoom,
b = typeof transform === "function" ? transform.apply(that, args) : transform,
i = interpolateZoom(a.invert(p).concat(w / a.k), b.invert(p).concat(w / b.k));
return function(t) {
if (t === 1) t = b; // Avoid rounding error on end.
else { var l = i(t), k = w / l[2]; t = new Transform(k, p[0] - l[0] * k, p[1] - l[1] * k); }
g.zoom(null, t);
};
});
}
function gesture(that, args) {
for (var i = 0, n = gestures.length, g; i < n; ++i) {
if ((g = gestures[i]).that === that) {
return g;
}
}
return new Gesture(that, args);
}
function Gesture(that, args) {
this.that = that;
this.args = args;
this.index = -1;
this.active = 0;
this.extent = extent.apply(that, args);
}
Gesture.prototype = {
start: function() {
if (++this.active === 1) {
this.index = gestures.push(this) - 1;
this.emit("start");
}
return this;
},
zoom: function(key, transform) {
if (this.mouse && key !== "mouse") this.mouse[1] = transform.invert(this.mouse[0]);
if (this.touch0 && key !== "touch") this.touch0[1] = transform.invert(this.touch0[0]);
if (this.touch1 && key !== "touch") this.touch1[1] = transform.invert(this.touch1[0]);
this.that.__zoom = transform;
this.emit("zoom");
return this;
},
end: function() {
if (--this.active === 0) {
gestures.splice(this.index, 1);
this.index = -1;
this.emit("end");
}
return this;
},
emit: function(type) {
customEvent(new ZoomEvent(zoom, type, this.that.__zoom), listeners.apply, listeners, [type, this.that, this.args]);
}
};
function wheeled() {
if (!filter.apply(this, arguments)) return;
var g = gesture(this, arguments),
t = this.__zoom,
k = Math.max(k0, Math.min(k1, t.k * Math.pow(2, -exports.event.deltaY * (exports.event.deltaMode ? 120 : 1) / 500))),
p = mouse(this);
// If the mouse is in the same location as before, reuse it.
// If there were recent wheel events, reset the wheel idle timeout.
if (g.wheel) {
if (g.mouse[0][0] !== p[0] || g.mouse[0][1] !== p[1]) {
g.mouse[1] = t.invert(g.mouse[0] = p);
}
clearTimeout(g.wheel);
}
// If this wheel event won’t trigger a transform change, ignore it.
else if (t.k === k) return;
// Otherwise, capture the mouse point and location at the start.
else {
g.mouse = [p, t.invert(p)];
interrupt(this);
g.start();
}
noevent$1();
g.wheel = setTimeout(wheelidled, wheelDelay);
g.zoom("mouse", constrain(translate(scale(t, k), g.mouse[0], g.mouse[1]), g.extent));
function wheelidled() {
g.wheel = null;
g.end();
}
}
function mousedowned() {
if (touchending || !filter.apply(this, arguments)) return;
var g = gesture(this, arguments),
v = select(exports.event.view).on("mousemove.zoom", mousemoved, true).on("mouseup.zoom", mouseupped, true),
p = mouse(this);
dragDisable(exports.event.view);
nopropagation$1();
g.mouse = [p, this.__zoom.invert(p)];
interrupt(this);
g.start();
function mousemoved() {
noevent$1();
g.moved = true;
g.zoom("mouse", constrain(translate(g.that.__zoom, g.mouse[0] = mouse(g.that), g.mouse[1]), g.extent));
}
function mouseupped() {
v.on("mousemove.zoom mouseup.zoom", null);
dragEnable(exports.event.view, g.moved);
noevent$1();
g.end();
}
}
function dblclicked() {
if (!filter.apply(this, arguments)) return;
var t0 = this.__zoom,
p0 = mouse(this),
p1 = t0.invert(p0),
k1 = t0.k * (exports.event.shiftKey ? 0.5 : 2),
t1 = constrain(translate(scale(t0, k1), p0, p1), extent.apply(this, arguments));
noevent$1();
if (duration > 0) select(this).transition().duration(duration).call(schedule, t1, p0);
else select(this).call(zoom.transform, t1);
}
function touchstarted() {
if (!filter.apply(this, arguments)) return;
var g = gesture(this, arguments),
touches = exports.event.changedTouches,
n = touches.length, i, t, p;
nopropagation$1();
for (i = 0; i < n; ++i) {
t = touches[i], p = touch(this, touches, t.identifier);
p = [p, this.__zoom.invert(p), t.identifier];
if (!g.touch0) g.touch0 = p;
else if (!g.touch1) g.touch1 = p;
}
if (touchstarting) {
touchstarting = clearTimeout(touchstarting);
if (!g.touch1) return g.end(), dblclicked.apply(this, arguments);
}
if (exports.event.touches.length === n) {
touchstarting = setTimeout(function() { touchstarting = null; }, touchDelay);
interrupt(this);
g.start();
}
}
function touchmoved() {
var g = gesture(this, arguments),
touches = exports.event.changedTouches,
n = touches.length, i, t, p, l;
noevent$1();
if (touchstarting) touchstarting = clearTimeout(touchstarting);
for (i = 0; i < n; ++i) {
t = touches[i], p = touch(this, touches, t.identifier);
if (g.touch0 && g.touch0[2] === t.identifier) g.touch0[0] = p;
else if (g.touch1 && g.touch1[2] === t.identifier) g.touch1[0] = p;
}
t = g.that.__zoom;
if (g.touch1) {
var p0 = g.touch0[0], l0 = g.touch0[1],
p1 = g.touch1[0], l1 = g.touch1[1],
dp = (dp = p1[0] - p0[0]) * dp + (dp = p1[1] - p0[1]) * dp,
dl = (dl = l1[0] - l0[0]) * dl + (dl = l1[1] - l0[1]) * dl;
t = scale(t, Math.sqrt(dp / dl));
p = [(p0[0] + p1[0]) / 2, (p0[1] + p1[1]) / 2];
l = [(l0[0] + l1[0]) / 2, (l0[1] + l1[1]) / 2];
}
else if (g.touch0) p = g.touch0[0], l = g.touch0[1];
else return;
g.zoom("touch", constrain(translate(t, p, l), g.extent));
}
function touchended() {
var g = gesture(this, arguments),
touches = exports.event.changedTouches,
n = touches.length, i, t;
nopropagation$1();
if (touchending) clearTimeout(touchending);
touchending = setTimeout(function() { touchending = null; }, touchDelay);
for (i = 0; i < n; ++i) {
t = touches[i];
if (g.touch0 && g.touch0[2] === t.identifier) delete g.touch0;
else if (g.touch1 && g.touch1[2] === t.identifier) delete g.touch1;
}
if (g.touch1 && !g.touch0) g.touch0 = g.touch1, delete g.touch1;
if (!g.touch0) g.end();
}
zoom.filter = function(_) {
return arguments.length ? (filter = typeof _ === "function" ? _ : constant$9(!!_), zoom) : filter;
};
zoom.extent = function(_) {
return arguments.length ? (extent = typeof _ === "function" ? _ : constant$9([[+_[0][0], +_[0][1]], [+_[1][0], +_[1][1]]]), zoom) : extent;
};
zoom.scaleExtent = function(_) {
return arguments.length ? (k0 = +_[0], k1 = +_[1], zoom) : [k0, k1];
};
zoom.translateExtent = function(_) {
return arguments.length ? (x0 = +_[0][0], x1 = +_[1][0], y0 = +_[0][1], y1 = +_[1][1], zoom) : [[x0, y0], [x1, y1]];
};
zoom.duration = function(_) {
return arguments.length ? (duration = +_, zoom) : duration;
};
zoom.on = function() {
var value = listeners.on.apply(listeners, arguments);
return value === listeners ? zoom : value;
};
return zoom;
}
function constant$10(x) {
return function() {
return x;
};
}
function BrushEvent(target, type, selection) {
this.target = target;
this.type = type;
this.selection = selection;
}
function nopropagation$2() {
exports.event.stopImmediatePropagation();
}
function noevent$2() {
exports.event.preventDefault();
exports.event.stopImmediatePropagation();
}
var MODE_DRAG = {name: "drag"};
var MODE_SPACE = {name: "space"};
var MODE_HANDLE = {name: "handle"};
var MODE_CENTER = {name: "center"};
var X = {
name: "x",
handles: ["e", "w"].map(type$1),
input: function(x, e) { return x && [[x[0], e[0][1]], [x[1], e[1][1]]]; },
output: function(xy) { return xy && [xy[0][0], xy[1][0]]; }
};
var Y = {
name: "y",
handles: ["n", "s"].map(type$1),
input: function(y, e) { return y && [[e[0][0], y[0]], [e[1][0], y[1]]]; },
output: function(xy) { return xy && [xy[0][1], xy[1][1]]; }
};
var XY = {
name: "xy",
handles: ["n", "e", "s", "w", "nw", "ne", "se", "sw"].map(type$1),
input: function(xy) { return xy; },
output: function(xy) { return xy; }
};
var cursors = {
overlay: "crosshair",
selection: "move",
n: "ns-resize",
e: "ew-resize",
s: "ns-resize",
w: "ew-resize",
nw: "nwse-resize",
ne: "nesw-resize",
se: "nwse-resize",
sw: "nesw-resize"
};
var flipX = {
e: "w",
w: "e",
nw: "ne",
ne: "nw",
se: "sw",
sw: "se"
};
var flipY = {
n: "s",
s: "n",
nw: "sw",
ne: "se",
se: "ne",
sw: "nw"
};
var signsX = {
overlay: +1,
selection: +1,
n: null,
e: +1,
s: null,
w: -1,
nw: -1,
ne: +1,
se: +1,
sw: -1
};
var signsY = {
overlay: +1,
selection: +1,
n: -1,
e: null,
s: +1,
w: null,
nw: -1,
ne: -1,
se: +1,
sw: +1
};
function type$1(t) {
return {type: t};
}
// Ignore right-click, since that should open the context menu.
function defaultFilter$2() {
return !exports.event.button;
}
function defaultExtent$1() {
var svg = this.ownerSVGElement || this;
return [[0, 0], [svg.width.baseVal.value, svg.height.baseVal.value]];
}
// Like d3.local, but with the name “__brush” rather than auto-generated.
function local$1(node) {
while (!node.__brush) if (!(node = node.parentNode)) return;
return node.__brush;
}
function empty$1(extent) {
return extent[0][0] === extent[1][0]
|| extent[0][1] === extent[1][1];
}
function brushSelection(node) {
var state = node.__brush;
return state ? state.dim.output(state.selection) : null;
}
function brushX() {
return brush$1(X);
}
function brushY() {
return brush$1(Y);
}
function brush() {
return brush$1(XY);
}
function brush$1(dim) {
var extent = defaultExtent$1,
filter = defaultFilter$2,
listeners = dispatch(brush, "start", "brush", "end"),
handleSize = 6,
touchending;
function brush(group) {
var overlay = group
.property("__brush", initialize)
.selectAll(".overlay")
.data([type$1("overlay")]);
overlay.enter().append("rect")
.attr("class", "overlay")
.attr("pointer-events", "all")
.attr("cursor", cursors.overlay)
.merge(overlay)
.each(function() {
var extent = local$1(this).extent;
select(this)
.attr("x", extent[0][0])
.attr("y", extent[0][1])
.attr("width", extent[1][0] - extent[0][0])
.attr("height", extent[1][1] - extent[0][1]);
});
group.selectAll(".selection")
.data([type$1("selection")])
.enter().append("rect")
.attr("class", "selection")
.attr("cursor", cursors.selection)
.attr("fill", "#777")
.attr("fill-opacity", 0.3)
.attr("stroke", "#fff")
.attr("shape-rendering", "crispEdges");
var handle = group.selectAll(".handle")
.data(dim.handles, function(d) { return d.type; });
handle.exit().remove();
handle.enter().append("rect")
.attr("class", function(d) { return "handle handle--" + d.type; })
.attr("cursor", function(d) { return cursors[d.type]; });
group
.each(redraw)
.attr("fill", "none")
.attr("pointer-events", "all")
.style("-webkit-tap-highlight-color", "rgba(0,0,0,0)")
.on("mousedown.brush touchstart.brush", started);
}
brush.move = function(group, selection) {
if (group.selection) {
group
.on("start.brush", function() { emitter(this, arguments).beforestart().start(); })
.on("interrupt.brush end.brush", function() { emitter(this, arguments).end(); })
.tween("brush", function() {
var that = this,
state = that.__brush,
emit = emitter(that, arguments),
selection0 = state.selection,
selection1 = dim.input(typeof selection === "function" ? selection.apply(this, arguments) : selection, state.extent),
i = interpolate(selection0, selection1);
function tween(t) {
state.selection = t === 1 && empty$1(selection1) ? null : i(t);
redraw.call(that);
emit.brush();
}
return selection0 && selection1 ? tween : tween(1);
});
} else {
group
.each(function() {
var that = this,
args = arguments,
state = that.__brush,
selection1 = dim.input(typeof selection === "function" ? selection.apply(that, args) : selection, state.extent),
emit = emitter(that, args).beforestart();
interrupt(that);
state.selection = selection1 == null || empty$1(selection1) ? null : selection1;
redraw.call(that);
emit.start().brush().end();
});
}
};
function redraw() {
var group = select(this),
selection = local$1(this).selection;
if (selection) {
group.selectAll(".selection")
.style("display", null)
.attr("x", selection[0][0])
.attr("y", selection[0][1])
.attr("width", selection[1][0] - selection[0][0])
.attr("height", selection[1][1] - selection[0][1]);
group.selectAll(".handle")
.style("display", null)
.attr("x", function(d) { return d.type[d.type.length - 1] === "e" ? selection[1][0] - handleSize / 2 : selection[0][0] - handleSize / 2; })
.attr("y", function(d) { return d.type[0] === "s" ? selection[1][1] - handleSize / 2 : selection[0][1] - handleSize / 2; })
.attr("width", function(d) { return d.type === "n" || d.type === "s" ? selection[1][0] - selection[0][0] + handleSize : handleSize; })
.attr("height", function(d) { return d.type === "e" || d.type === "w" ? selection[1][1] - selection[0][1] + handleSize : handleSize; });
}
else {
group.selectAll(".selection,.handle")
.style("display", "none")
.attr("x", null)
.attr("y", null)
.attr("width", null)
.attr("height", null);
}
}
function emitter(that, args) {
return that.__brush.emitter || new Emitter(that, args);
}
function Emitter(that, args) {
this.that = that;
this.args = args;
this.state = that.__brush;
this.active = 0;
}
Emitter.prototype = {
beforestart: function() {
if (++this.active === 1) this.state.emitter = this, this.starting = true;
return this;
},
start: function() {
if (this.starting) this.starting = false, this.emit("start");
return this;
},
brush: function() {
this.emit("brush");
return this;
},
end: function() {
if (--this.active === 0) delete this.state.emitter, this.emit("end");
return this;
},
emit: function(type) {
customEvent(new BrushEvent(brush, type, dim.output(this.state.selection)), listeners.apply, listeners, [type, this.that, this.args]);
}
};
function started() {
if (exports.event.touches) { if (exports.event.changedTouches.length < exports.event.touches.length) return noevent$2(); }
else if (touchending) return;
if (!filter.apply(this, arguments)) return;
var that = this,
type = exports.event.target.__data__.type,
mode = (exports.event.metaKey ? type = "overlay" : type) === "selection" ? MODE_DRAG : (exports.event.altKey ? MODE_CENTER : MODE_HANDLE),
signX = dim === Y ? null : signsX[type],
signY = dim === X ? null : signsY[type],
state = local$1(that),
extent = state.extent,
selection = state.selection,
W = extent[0][0], w0, w1,
N = extent[0][1], n0, n1,
E = extent[1][0], e0, e1,
S = extent[1][1], s0, s1,
dx,
dy,
moving,
shifting = signX && signY && exports.event.shiftKey,
lockX,
lockY,
point0 = mouse(that),
point = point0,
emit = emitter(that, arguments).beforestart();
if (type === "overlay") {
state.selection = selection = [
[w0 = dim === Y ? W : point0[0], n0 = dim === X ? N : point0[1]],
[e0 = dim === Y ? E : w0, s0 = dim === X ? S : n0]
];
} else {
w0 = selection[0][0];
n0 = selection[0][1];
e0 = selection[1][0];
s0 = selection[1][1];
}
w1 = w0;
n1 = n0;
e1 = e0;
s1 = s0;
var group = select(that)
.attr("pointer-events", "none");
var overlay = group.selectAll(".overlay")
.attr("cursor", cursors[type]);
if (exports.event.touches) {
group
.on("touchmove.brush", moved, true)
.on("touchend.brush touchcancel.brush", ended, true);
} else {
var view = select(exports.event.view)
.on("keydown.brush", keydowned, true)
.on("keyup.brush", keyupped, true)
.on("mousemove.brush", moved, true)
.on("mouseup.brush", ended, true);
dragDisable(exports.event.view);
}
nopropagation$2();
interrupt(that);
redraw.call(that);
emit.start();
function moved() {
var point1 = mouse(that);
if (shifting && !lockX && !lockY) {
if (Math.abs(point1[0] - point[0]) > Math.abs(point1[1] - point[1])) lockY = true;
else lockX = true;
}
point = point1;
moving = true;
noevent$2();
move();
}
function move() {
var t;
dx = point[0] - point0[0];
dy = point[1] - point0[1];
switch (mode) {
case MODE_SPACE:
case MODE_DRAG: {
if (signX) dx = Math.max(W - w0, Math.min(E - e0, dx)), w1 = w0 + dx, e1 = e0 + dx;
if (signY) dy = Math.max(N - n0, Math.min(S - s0, dy)), n1 = n0 + dy, s1 = s0 + dy;
break;
}
case MODE_HANDLE: {
if (signX < 0) dx = Math.max(W - w0, Math.min(E - w0, dx)), w1 = w0 + dx, e1 = e0;
else if (signX > 0) dx = Math.max(W - e0, Math.min(E - e0, dx)), w1 = w0, e1 = e0 + dx;
if (signY < 0) dy = Math.max(N - n0, Math.min(S - n0, dy)), n1 = n0 + dy, s1 = s0;
else if (signY > 0) dy = Math.max(N - s0, Math.min(S - s0, dy)), n1 = n0, s1 = s0 + dy;
break;
}
case MODE_CENTER: {
if (signX) w1 = Math.max(W, Math.min(E, w0 - dx * signX)), e1 = Math.max(W, Math.min(E, e0 + dx * signX));
if (signY) n1 = Math.max(N, Math.min(S, n0 - dy * signY)), s1 = Math.max(N, Math.min(S, s0 + dy * signY));
break;
}
}
if (e1 < w1) {
signX *= -1;
t = w0, w0 = e0, e0 = t;
t = w1, w1 = e1, e1 = t;
if (type in flipX) overlay.attr("cursor", cursors[type = flipX[type]]);
}
if (s1 < n1) {
signY *= -1;
t = n0, n0 = s0, s0 = t;
t = n1, n1 = s1, s1 = t;
if (type in flipY) overlay.attr("cursor", cursors[type = flipY[type]]);
}
selection = state.selection; // May be set by brush.move!
if (lockX) w1 = selection[0][0], e1 = selection[1][0];
if (lockY) n1 = selection[0][1], s1 = selection[1][1];
if (selection[0][0] !== w1
|| selection[0][1] !== n1
|| selection[1][0] !== e1
|| selection[1][1] !== s1) {
state.selection = [[w1, n1], [e1, s1]];
redraw.call(that);
emit.brush();
}
}
function ended() {
nopropagation$2();
if (exports.event.touches) {
if (exports.event.touches.length) return;
if (touchending) clearTimeout(touchending);
touchending = setTimeout(function() { touchending = null; }, 500); // Ghost clicks are delayed!
group.on("touchmove.brush touchend.brush touchcancel.brush", null);
} else {
dragEnable(exports.event.view, moving);
view.on("keydown.brush keyup.brush mousemove.brush mouseup.brush", null);
}
group.attr("pointer-events", "all");
overlay.attr("cursor", cursors.overlay);
if (empty$1(selection)) state.selection = null, redraw.call(that);
emit.end();
}
function keydowned() {
switch (exports.event.keyCode) {
case 16: { // SHIFT
shifting = signX && signY;
break;
}
case 18: { // ALT
if (mode === MODE_HANDLE) {
if (signX) e0 = e1 - dx * signX, w0 = w1 + dx * signX;
if (signY) s0 = s1 - dy * signY, n0 = n1 + dy * signY;
mode = MODE_CENTER;
move();
}
break;
}
case 32: { // SPACE; takes priority over ALT
if (mode === MODE_HANDLE || mode === MODE_CENTER) {
if (signX < 0) e0 = e1 - dx; else if (signX > 0) w0 = w1 - dx;
if (signY < 0) s0 = s1 - dy; else if (signY > 0) n0 = n1 - dy;
mode = MODE_SPACE;
overlay.attr("cursor", cursors.selection);
move();
}
break;
}
default: return;
}
noevent$2();
}
function keyupped() {
switch (exports.event.keyCode) {
case 16: { // SHIFT
if (shifting) {
lockX = lockY = shifting = false;
move();
}
break;
}
case 18: { // ALT
if (mode === MODE_CENTER) {
if (signX < 0) e0 = e1; else if (signX > 0) w0 = w1;
if (signY < 0) s0 = s1; else if (signY > 0) n0 = n1;
mode = MODE_HANDLE;
move();
}
break;
}
case 32: { // SPACE
if (mode === MODE_SPACE) {
if (exports.event.altKey) {
if (signX) e0 = e1 - dx * signX, w0 = w1 + dx * signX;
if (signY) s0 = s1 - dy * signY, n0 = n1 + dy * signY;
mode = MODE_CENTER;
} else {
if (signX < 0) e0 = e1; else if (signX > 0) w0 = w1;
if (signY < 0) s0 = s1; else if (signY > 0) n0 = n1;
mode = MODE_HANDLE;
}
overlay.attr("cursor", cursors[type]);
move();
}
break;
}
default: return;
}
noevent$2();
}
}
function initialize() {
var state = this.__brush || {selection: null};
state.extent = extent.apply(this, arguments);
state.dim = dim;
return state;
}
brush.extent = function(_) {
return arguments.length ? (extent = typeof _ === "function" ? _ : constant$10([[+_[0][0], +_[0][1]], [+_[1][0], +_[1][1]]]), brush) : extent;
};
brush.filter = function(_) {
return arguments.length ? (filter = typeof _ === "function" ? _ : constant$10(!!_), brush) : filter;
};
brush.handleSize = function(_) {
return arguments.length ? (handleSize = +_, brush) : handleSize;
};
brush.on = function() {
var value = listeners.on.apply(listeners, arguments);
return value === listeners ? brush : value;
};
return brush;
}
var cos = Math.cos;
var sin = Math.sin;
var pi$3 = Math.PI;
var halfPi$2 = pi$3 / 2;
var tau$3 = pi$3 * 2;
var max$1 = Math.max;
function compareValue(compare) {
return function(a, b) {
return compare(
a.source.value + a.target.value,
b.source.value + b.target.value
);
};
}
function chord() {
var padAngle = 0,
sortGroups = null,
sortSubgroups = null,
sortChords = null;
function chord(matrix) {
var n = matrix.length,
groupSums = [],
groupIndex = range(n),
subgroupIndex = [],
chords = [],
groups = chords.groups = new Array(n),
subgroups = new Array(n * n),
k,
x,
x0,
dx,
i,
j;
// Compute the sum.
k = 0, i = -1; while (++i < n) {
x = 0, j = -1; while (++j < n) {
x += matrix[i][j];
}
groupSums.push(x);
subgroupIndex.push(range(n));
k += x;
}
// Sort groups…
if (sortGroups) groupIndex.sort(function(a, b) {
return sortGroups(groupSums[a], groupSums[b]);
});
// Sort subgroups…
if (sortSubgroups) subgroupIndex.forEach(function(d, i) {
d.sort(function(a, b) {
return sortSubgroups(matrix[i][a], matrix[i][b]);
});
});
// Convert the sum to scaling factor for [0, 2pi].
// TODO Allow start and end angle to be specified?
// TODO Allow padding to be specified as percentage?
k = max$1(0, tau$3 - padAngle * n) / k;
dx = k ? padAngle : tau$3 / n;
// Compute the start and end angle for each group and subgroup.
// Note: Opera has a bug reordering object literal properties!
x = 0, i = -1; while (++i < n) {
x0 = x, j = -1; while (++j < n) {
var di = groupIndex[i],
dj = subgroupIndex[di][j],
v = matrix[di][dj],
a0 = x,
a1 = x += v * k;
subgroups[dj * n + di] = {
index: di,
subindex: dj,
startAngle: a0,
endAngle: a1,
value: v
};
}
groups[di] = {
index: di,
startAngle: x0,
endAngle: x,
value: groupSums[di]
};
x += dx;
}
// Generate chords for each (non-empty) subgroup-subgroup link.
i = -1; while (++i < n) {
j = i - 1; while (++j < n) {
var source = subgroups[j * n + i],
target = subgroups[i * n + j];
if (source.value || target.value) {
chords.push(source.value < target.value
? {source: target, target: source}
: {source: source, target: target});
}
}
}
return sortChords ? chords.sort(sortChords) : chords;
}
chord.padAngle = function(_) {
return arguments.length ? (padAngle = max$1(0, _), chord) : padAngle;
};
chord.sortGroups = function(_) {
return arguments.length ? (sortGroups = _, chord) : sortGroups;
};
chord.sortSubgroups = function(_) {
return arguments.length ? (sortSubgroups = _, chord) : sortSubgroups;
};
chord.sortChords = function(_) {
return arguments.length ? (_ == null ? sortChords = null : (sortChords = compareValue(_))._ = _, chord) : sortChords && sortChords._;
};
return chord;
}
var slice$5 = Array.prototype.slice;
function constant$11(x) {
return function() {
return x;
};
}
function defaultSource(d) {
return d.source;
}
function defaultTarget(d) {
return d.target;
}
function defaultRadius$1(d) {
return d.radius;
}
function defaultStartAngle(d) {
return d.startAngle;
}
function defaultEndAngle(d) {
return d.endAngle;
}
function ribbon() {
var source = defaultSource,
target = defaultTarget,
radius = defaultRadius$1,
startAngle = defaultStartAngle,
endAngle = defaultEndAngle,
context = null;
function ribbon() {
var buffer,
argv = slice$5.call(arguments),
s = source.apply(this, argv),
t = target.apply(this, argv),
sr = +radius.apply(this, (argv[0] = s, argv)),
sa0 = startAngle.apply(this, argv) - halfPi$2,
sa1 = endAngle.apply(this, argv) - halfPi$2,
sx0 = sr * cos(sa0),
sy0 = sr * sin(sa0),
tr = +radius.apply(this, (argv[0] = t, argv)),
ta0 = startAngle.apply(this, argv) - halfPi$2,
ta1 = endAngle.apply(this, argv) - halfPi$2;
if (!context) context = buffer = path();
context.moveTo(sx0, sy0);
context.arc(0, 0, sr, sa0, sa1);
if (sa0 !== ta0 || sa1 !== ta1) { // TODO sr !== tr?
context.quadraticCurveTo(0, 0, tr * cos(ta0), tr * sin(ta0));
context.arc(0, 0, tr, ta0, ta1);
}
context.quadraticCurveTo(0, 0, sx0, sy0);
context.closePath();
if (buffer) return context = null, buffer + "" || null;
}
ribbon.radius = function(_) {
return arguments.length ? (radius = typeof _ === "function" ? _ : constant$11(+_), ribbon) : radius;
};
ribbon.startAngle = function(_) {
return arguments.length ? (startAngle = typeof _ === "function" ? _ : constant$11(+_), ribbon) : startAngle;
};
ribbon.endAngle = function(_) {
return arguments.length ? (endAngle = typeof _ === "function" ? _ : constant$11(+_), ribbon) : endAngle;
};
ribbon.source = function(_) {
return arguments.length ? (source = _, ribbon) : source;
};
ribbon.target = function(_) {
return arguments.length ? (target = _, ribbon) : target;
};
ribbon.context = function(_) {
return arguments.length ? ((context = _ == null ? null : _), ribbon) : context;
};
return ribbon;
}
// Adds floating point numbers with twice the normal precision.
// Reference: J. R. Shewchuk, Adaptive Precision Floating-Point Arithmetic and
// Fast Robust Geometric Predicates, Discrete & Computational Geometry 18(3)
// 305–363 (1997).
// Code adapted from GeographicLib by Charles F. F. Karney,
// http://geographiclib.sourceforge.net/
function adder() {
return new Adder;
}
function Adder() {
this.reset();
}
Adder.prototype = {
constructor: Adder,
reset: function() {
this.s = // rounded value
this.t = 0; // exact error
},
add: function(y) {
add$1(temp, y, this.t);
add$1(this, temp.s, this.s);
if (this.s) this.t += temp.t;
else this.s = temp.t;
},
valueOf: function() {
return this.s;
}
};
var temp = new Adder;
function add$1(adder, a, b) {
var x = adder.s = a + b,
bv = x - a,
av = x - bv;
adder.t = (a - av) + (b - bv);
}
var epsilon$4 = 1e-6;
var epsilon2$2 = 1e-12;
var pi$4 = Math.PI;
var halfPi$3 = pi$4 / 2;
var quarterPi = pi$4 / 4;
var tau$4 = pi$4 * 2;
var degrees$1 = 180 / pi$4;
var radians = pi$4 / 180;
var abs = Math.abs;
var atan = Math.atan;
var atan2 = Math.atan2;
var cos$1 = Math.cos;
var ceil = Math.ceil;
var exp = Math.exp;
var log$1 = Math.log;
var pow$1 = Math.pow;
var sin$1 = Math.sin;
var sign$1 = Math.sign || function(x) { return x > 0 ? 1 : x < 0 ? -1 : 0; };
var sqrt$1 = Math.sqrt;
var tan = Math.tan;
function acos(x) {
return x > 1 ? 0 : x < -1 ? pi$4 : Math.acos(x);
}
function asin$1(x) {
return x > 1 ? halfPi$3 : x < -1 ? -halfPi$3 : Math.asin(x);
}
function haversin(x) {
return (x = sin$1(x / 2)) * x;
}
function noop$2() {}
function streamGeometry(geometry, stream) {
if (geometry && streamGeometryType.hasOwnProperty(geometry.type)) {
streamGeometryType[geometry.type](geometry, stream);
}
}
var streamObjectType = {
Feature: function(feature, stream) {
streamGeometry(feature.geometry, stream);
},
FeatureCollection: function(object, stream) {
var features = object.features, i = -1, n = features.length;
while (++i < n) streamGeometry(features[i].geometry, stream);
}
};
var streamGeometryType = {
Sphere: function(object, stream) {
stream.sphere();
},
Point: function(object, stream) {
object = object.coordinates;
stream.point(object[0], object[1], object[2]);
},
MultiPoint: function(object, stream) {
var coordinates = object.coordinates, i = -1, n = coordinates.length;
while (++i < n) object = coordinates[i], stream.point(object[0], object[1], object[2]);
},
LineString: function(object, stream) {
streamLine(object.coordinates, stream, 0);
},
MultiLineString: function(object, stream) {
var coordinates = object.coordinates, i = -1, n = coordinates.length;
while (++i < n) streamLine(coordinates[i], stream, 0);
},
Polygon: function(object, stream) {
streamPolygon(object.coordinates, stream);
},
MultiPolygon: function(object, stream) {
var coordinates = object.coordinates, i = -1, n = coordinates.length;
while (++i < n) streamPolygon(coordinates[i], stream);
},
GeometryCollection: function(object, stream) {
var geometries = object.geometries, i = -1, n = geometries.length;
while (++i < n) streamGeometry(geometries[i], stream);
}
};
function streamLine(coordinates, stream, closed) {
var i = -1, n = coordinates.length - closed, coordinate;
stream.lineStart();
while (++i < n) coordinate = coordinates[i], stream.point(coordinate[0], coordinate[1], coordinate[2]);
stream.lineEnd();
}
function streamPolygon(coordinates, stream) {
var i = -1, n = coordinates.length;
stream.polygonStart();
while (++i < n) streamLine(coordinates[i], stream, 1);
stream.polygonEnd();
}
function stream(object, stream) {
if (object && streamObjectType.hasOwnProperty(object.type)) {
streamObjectType[object.type](object, stream);
} else {
streamGeometry(object, stream);
}
}
var areaRingSum;
var areaSum;
var lambda00;
var phi00;
var lambda0;
var cosPhi0;
var sinPhi0;
var areaStream = {
point: noop$2,
lineStart: noop$2,
lineEnd: noop$2,
polygonStart: function() {
areaRingSum.reset();
areaStream.lineStart = areaRingStart;
areaStream.lineEnd = areaRingEnd;
},
polygonEnd: function() {
var areaRing = +areaRingSum;
areaSum.add(areaRing < 0 ? tau$4 + areaRing : areaRing);
this.lineStart = this.lineEnd = this.point = noop$2;
},
sphere: function() {
areaSum.add(tau$4);
}
};
function areaRingStart() {
areaStream.point = areaPointFirst;
}
function areaRingEnd() {
areaPoint(lambda00, phi00);
}
function areaPointFirst(lambda, phi) {
areaStream.point = areaPoint;
lambda00 = lambda, phi00 = phi;
lambda *= radians, phi *= radians;
lambda0 = lambda, cosPhi0 = cos$1(phi = phi / 2 + quarterPi), sinPhi0 = sin$1(phi);
}
function areaPoint(lambda, phi) {
lambda *= radians, phi *= radians;
phi = phi / 2 + quarterPi; // half the angular distance from south pole
// Spherical excess E for a spherical triangle with vertices: south pole,
// previous point, current point. Uses a formula derived from Cagnoli’s
// theorem. See Todhunter, Spherical Trig. (1871), Sec. 103, Eq. (2).
var dLambda = lambda - lambda0,
sdLambda = dLambda >= 0 ? 1 : -1,
adLambda = sdLambda * dLambda,
cosPhi = cos$1(phi),
sinPhi = sin$1(phi),
k = sinPhi0 * sinPhi,
u = cosPhi0 * cosPhi + k * cos$1(adLambda),
v = k * sdLambda * sin$1(adLambda);
areaRingSum.add(atan2(v, u));
// Advance the previous points.
lambda0 = lambda, cosPhi0 = cosPhi, sinPhi0 = sinPhi;
}
function area$2(object) {
if (areaSum) areaSum.reset();
else areaSum = adder(), areaRingSum = adder();
stream(object, areaStream);
return areaSum * 2;
}
function spherical(cartesian) {
return [atan2(cartesian[1], cartesian[0]), asin$1(cartesian[2])];
}
function cartesian(spherical) {
var lambda = spherical[0], phi = spherical[1], cosPhi = cos$1(phi);
return [cosPhi * cos$1(lambda), cosPhi * sin$1(lambda), sin$1(phi)];
}
function cartesianDot(a, b) {
return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];
}
function cartesianCross(a, b) {
return [a[1] * b[2] - a[2] * b[1], a[2] * b[0] - a[0] * b[2], a[0] * b[1] - a[1] * b[0]];
}
// TODO return a
function cartesianAddInPlace(a, b) {
a[0] += b[0], a[1] += b[1], a[2] += b[2];
}
function cartesianScale(vector, k) {
return [vector[0] * k, vector[1] * k, vector[2] * k];
}
// TODO return d
function cartesianNormalizeInPlace(d) {
var l = sqrt$1(d[0] * d[0] + d[1] * d[1] + d[2] * d[2]);
d[0] /= l, d[1] /= l, d[2] /= l;
}
var lambda0$1;
var phi0;
var lambda1;
var phi1;
var lambda2;
var lambda00$1;
var phi00$1;
var p0;
var deltaSum;
var ranges;
var range$1;
var boundsStream = {
point: boundsPoint,
lineStart: boundsLineStart,
lineEnd: boundsLineEnd,
polygonStart: function() {
boundsStream.point = boundsRingPoint;
boundsStream.lineStart = boundsRingStart;
boundsStream.lineEnd = boundsRingEnd;
deltaSum.reset();
areaStream.polygonStart();
},
polygonEnd: function() {
areaStream.polygonEnd();
boundsStream.point = boundsPoint;
boundsStream.lineStart = boundsLineStart;
boundsStream.lineEnd = boundsLineEnd;
if (areaRingSum < 0) lambda0$1 = -(lambda1 = 180), phi0 = -(phi1 = 90);
else if (deltaSum > epsilon$4) phi1 = 90;
else if (deltaSum < -epsilon$4) phi0 = -90;
range$1[0] = lambda0$1, range$1[1] = lambda1;
}
};
function boundsPoint(lambda, phi) {
ranges.push(range$1 = [lambda0$1 = lambda, lambda1 = lambda]);
if (phi < phi0) phi0 = phi;
if (phi > phi1) phi1 = phi;
}
function linePoint(lambda, phi) {
var p = cartesian([lambda * radians, phi * radians]);
if (p0) {
var normal = cartesianCross(p0, p),
equatorial = [normal[1], -normal[0], 0],
inflection = cartesianCross(equatorial, normal);
cartesianNormalizeInPlace(inflection);
inflection = spherical(inflection);
var delta = lambda - lambda2,
sign = delta > 0 ? 1 : -1,
lambdai = inflection[0] * degrees$1 * sign,
phii,
antimeridian = abs(delta) > 180;
if (antimeridian ^ (sign * lambda2 < lambdai && lambdai < sign * lambda)) {
phii = inflection[1] * degrees$1;
if (phii > phi1) phi1 = phii;
} else if (lambdai = (lambdai + 360) % 360 - 180, antimeridian ^ (sign * lambda2 < lambdai && lambdai < sign * lambda)) {
phii = -inflection[1] * degrees$1;
if (phii < phi0) phi0 = phii;
} else {
if (phi < phi0) phi0 = phi;
if (phi > phi1) phi1 = phi;
}
if (antimeridian) {
if (lambda < lambda2) {
if (angle(lambda0$1, lambda) > angle(lambda0$1, lambda1)) lambda1 = lambda;
} else {
if (angle(lambda, lambda1) > angle(lambda0$1, lambda1)) lambda0$1 = lambda;
}
} else {
if (lambda1 >= lambda0$1) {
if (lambda < lambda0$1) lambda0$1 = lambda;
if (lambda > lambda1) lambda1 = lambda;
} else {
if (lambda > lambda2) {
if (angle(lambda0$1, lambda) > angle(lambda0$1, lambda1)) lambda1 = lambda;
} else {
if (angle(lambda, lambda1) > angle(lambda0$1, lambda1)) lambda0$1 = lambda;
}
}
}
} else {
boundsPoint(lambda, phi);
}
p0 = p, lambda2 = lambda;
}
function boundsLineStart() {
boundsStream.point = linePoint;
}
function boundsLineEnd() {
range$1[0] = lambda0$1, range$1[1] = lambda1;
boundsStream.point = boundsPoint;
p0 = null;
}
function boundsRingPoint(lambda, phi) {
if (p0) {
var delta = lambda - lambda2;
deltaSum.add(abs(delta) > 180 ? delta + (delta > 0 ? 360 : -360) : delta);
} else {
lambda00$1 = lambda, phi00$1 = phi;
}
areaStream.point(lambda, phi);
linePoint(lambda, phi);
}
function boundsRingStart() {
areaStream.lineStart();
}
function boundsRingEnd() {
boundsRingPoint(lambda00$1, phi00$1);
areaStream.lineEnd();
if (abs(deltaSum) > epsilon$4) lambda0$1 = -(lambda1 = 180);
range$1[0] = lambda0$1, range$1[1] = lambda1;
p0 = null;
}
// Finds the left-right distance between two longitudes.
// This is almost the same as (lambda1 - lambda0 + 360°) % 360°, except that we want
// the distance between ±180° to be 360°.
function angle(lambda0, lambda1) {
return (lambda1 -= lambda0) < 0 ? lambda1 + 360 : lambda1;
}
function rangeCompare(a, b) {
return a[0] - b[0];
}
function rangeContains(range, x) {
return range[0] <= range[1] ? range[0] <= x && x <= range[1] : x < range[0] || range[1] < x;
}
function bounds(feature) {
var i, n, a, b, merged, deltaMax, delta;
if (deltaSum) deltaSum.reset();
else deltaSum = adder();
phi1 = lambda1 = -(lambda0$1 = phi0 = Infinity);
ranges = [];
stream(feature, boundsStream);
// First, sort ranges by their minimum longitudes.
if (n = ranges.length) {
ranges.sort(rangeCompare);
// Then, merge any ranges that overlap.
for (i = 1, a = ranges[0], merged = [a]; i < n; ++i) {
b = ranges[i];
if (rangeContains(a, b[0]) || rangeContains(a, b[1])) {
if (angle(a[0], b[1]) > angle(a[0], a[1])) a[1] = b[1];
if (angle(b[0], a[1]) > angle(a[0], a[1])) a[0] = b[0];
} else {
merged.push(a = b);
}
}
// Finally, find the largest gap between the merged ranges.
// The final bounding box will be the inverse of this gap.
for (deltaMax = -Infinity, n = merged.length - 1, i = 0, a = merged[n]; i <= n; a = b, ++i) {
b = merged[i];
if ((delta = angle(a[1], b[0])) > deltaMax) deltaMax = delta, lambda0$1 = b[0], lambda1 = a[1];
}
}
ranges = range$1 = null;
return lambda0$1 === Infinity || phi0 === Infinity
? [[NaN, NaN], [NaN, NaN]]
: [[lambda0$1, phi0], [lambda1, phi1]];
}
var W0;
var W1;
var X0;
var Y0;
var Z0;
var X1;
var Y1;
var Z1;
var X2;
var Y2;
var Z2;
var lambda00$2;
var phi00$2;
var x0;
var y0;
var z0;
// previous point
var centroidStream = {
sphere: noop$2,
point: centroidPoint,
lineStart: centroidLineStart,
lineEnd: centroidLineEnd,
polygonStart: function() {
centroidStream.lineStart = centroidRingStart;
centroidStream.lineEnd = centroidRingEnd;
},
polygonEnd: function() {
centroidStream.lineStart = centroidLineStart;
centroidStream.lineEnd = centroidLineEnd;
}
};
// Arithmetic mean of Cartesian vectors.
function centroidPoint(lambda, phi) {
lambda *= radians, phi *= radians;
var cosPhi = cos$1(phi);
centroidPointCartesian(cosPhi * cos$1(lambda), cosPhi * sin$1(lambda), sin$1(phi));
}
function centroidPointCartesian(x, y, z) {
++W0;
X0 += (x - X0) / W0;
Y0 += (y - Y0) / W0;
Z0 += (z - Z0) / W0;
}
function centroidLineStart() {
centroidStream.point = centroidLinePointFirst;
}
function centroidLinePointFirst(lambda, phi) {
lambda *= radians, phi *= radians;
var cosPhi = cos$1(phi);
x0 = cosPhi * cos$1(lambda);
y0 = cosPhi * sin$1(lambda);
z0 = sin$1(phi);
centroidStream.point = centroidLinePoint;
centroidPointCartesian(x0, y0, z0);
}
function centroidLinePoint(lambda, phi) {
lambda *= radians, phi *= radians;
var cosPhi = cos$1(phi),
x = cosPhi * cos$1(lambda),
y = cosPhi * sin$1(lambda),
z = sin$1(phi),
w = atan2(sqrt$1((w = y0 * z - z0 * y) * w + (w = z0 * x - x0 * z) * w + (w = x0 * y - y0 * x) * w), x0 * x + y0 * y + z0 * z);
W1 += w;
X1 += w * (x0 + (x0 = x));
Y1 += w * (y0 + (y0 = y));
Z1 += w * (z0 + (z0 = z));
centroidPointCartesian(x0, y0, z0);
}
function centroidLineEnd() {
centroidStream.point = centroidPoint;
}
// See J. E. Brock, The Inertia Tensor for a Spherical Triangle,
// J. Applied Mechanics 42, 239 (1975).
function centroidRingStart() {
centroidStream.point = centroidRingPointFirst;
}
function centroidRingEnd() {
centroidRingPoint(lambda00$2, phi00$2);
centroidStream.point = centroidPoint;
}
function centroidRingPointFirst(lambda, phi) {
lambda00$2 = lambda, phi00$2 = phi;
lambda *= radians, phi *= radians;
centroidStream.point = centroidRingPoint;
var cosPhi = cos$1(phi);
x0 = cosPhi * cos$1(lambda);
y0 = cosPhi * sin$1(lambda);
z0 = sin$1(phi);
centroidPointCartesian(x0, y0, z0);
}
function centroidRingPoint(lambda, phi) {
lambda *= radians, phi *= radians;
var cosPhi = cos$1(phi),
x = cosPhi * cos$1(lambda),
y = cosPhi * sin$1(lambda),
z = sin$1(phi),
cx = y0 * z - z0 * y,
cy = z0 * x - x0 * z,
cz = x0 * y - y0 * x,
m = sqrt$1(cx * cx + cy * cy + cz * cz),
u = x0 * x + y0 * y + z0 * z,
v = m && -acos(u) / m, // area weight
w = atan2(m, u); // line weight
X2 += v * cx;
Y2 += v * cy;
Z2 += v * cz;
W1 += w;
X1 += w * (x0 + (x0 = x));
Y1 += w * (y0 + (y0 = y));
Z1 += w * (z0 + (z0 = z));
centroidPointCartesian(x0, y0, z0);
}
function centroid$1(object) {
W0 = W1 =
X0 = Y0 = Z0 =
X1 = Y1 = Z1 =
X2 = Y2 = Z2 = 0;
stream(object, centroidStream);
var x = X2,
y = Y2,
z = Z2,
m = x * x + y * y + z * z;
// If the area-weighted ccentroid is undefined, fall back to length-weighted ccentroid.
if (m < epsilon2$2) {
x = X1, y = Y1, z = Z1;
// If the feature has zero length, fall back to arithmetic mean of point vectors.
if (W1 < epsilon$4) x = X0, y = Y0, z = Z0;
m = x * x + y * y + z * z;
// If the feature still has an undefined ccentroid, then return.
if (m < epsilon2$2) return [NaN, NaN];
}
return [atan2(y, x) * degrees$1, asin$1(z / sqrt$1(m)) * degrees$1];
}
function constant$12(x) {
return function() {
return x;
};
}
function compose(a, b) {
function compose(x, y) {
return x = a(x, y), b(x[0], x[1]);
}
if (a.invert && b.invert) compose.invert = function(x, y) {
return x = b.invert(x, y), x && a.invert(x[0], x[1]);
};
return compose;
}
function rotationIdentity(lambda, phi) {
return [lambda > pi$4 ? lambda - tau$4 : lambda < -pi$4 ? lambda + tau$4 : lambda, phi];
}
rotationIdentity.invert = rotationIdentity;
function rotateRadians(deltaLambda, deltaPhi, deltaGamma) {
return (deltaLambda %= tau$4) ? (deltaPhi || deltaGamma ? compose(rotationLambda(deltaLambda), rotationPhiGamma(deltaPhi, deltaGamma))
: rotationLambda(deltaLambda))
: (deltaPhi || deltaGamma ? rotationPhiGamma(deltaPhi, deltaGamma)
: rotationIdentity);
}
function forwardRotationLambda(deltaLambda) {
return function(lambda, phi) {
return lambda += deltaLambda, [lambda > pi$4 ? lambda - tau$4 : lambda < -pi$4 ? lambda + tau$4 : lambda, phi];
};
}
function rotationLambda(deltaLambda) {
var rotation = forwardRotationLambda(deltaLambda);
rotation.invert = forwardRotationLambda(-deltaLambda);
return rotation;
}
function rotationPhiGamma(deltaPhi, deltaGamma) {
var cosDeltaPhi = cos$1(deltaPhi),
sinDeltaPhi = sin$1(deltaPhi),
cosDeltaGamma = cos$1(deltaGamma),
sinDeltaGamma = sin$1(deltaGamma);
function rotation(lambda, phi) {
var cosPhi = cos$1(phi),
x = cos$1(lambda) * cosPhi,
y = sin$1(lambda) * cosPhi,
z = sin$1(phi),
k = z * cosDeltaPhi + x * sinDeltaPhi;
return [
atan2(y * cosDeltaGamma - k * sinDeltaGamma, x * cosDeltaPhi - z * sinDeltaPhi),
asin$1(k * cosDeltaGamma + y * sinDeltaGamma)
];
}
rotation.invert = function(lambda, phi) {
var cosPhi = cos$1(phi),
x = cos$1(lambda) * cosPhi,
y = sin$1(lambda) * cosPhi,
z = sin$1(phi),
k = z * cosDeltaGamma - y * sinDeltaGamma;
return [
atan2(y * cosDeltaGamma + z * sinDeltaGamma, x * cosDeltaPhi + k * sinDeltaPhi),
asin$1(k * cosDeltaPhi - x * sinDeltaPhi)
];
};
return rotation;
}
function rotation(rotate) {
rotate = rotateRadians(rotate[0] * radians, rotate[1] * radians, rotate.length > 2 ? rotate[2] * radians : 0);
function forward(coordinates) {
coordinates = rotate(coordinates[0] * radians, coordinates[1] * radians);
return coordinates[0] *= degrees$1, coordinates[1] *= degrees$1, coordinates;
}
forward.invert = function(coordinates) {
coordinates = rotate.invert(coordinates[0] * radians, coordinates[1] * radians);
return coordinates[0] *= degrees$1, coordinates[1] *= degrees$1, coordinates;
};
return forward;
}
// Generates a circle centered at [0°, 0°], with a given radius and precision.
function circleStream(stream, radius, delta, direction, t0, t1) {
if (!delta) return;
var cosRadius = cos$1(radius),
sinRadius = sin$1(radius),
step = direction * delta;
if (t0 == null) {
t0 = radius + direction * tau$4;
t1 = radius - step / 2;
} else {
t0 = circleRadius(cosRadius, t0);
t1 = circleRadius(cosRadius, t1);
if (direction > 0 ? t0 < t1 : t0 > t1) t0 += direction * tau$4;
}
for (var point, t = t0; direction > 0 ? t > t1 : t < t1; t -= step) {
point = spherical([cosRadius, -sinRadius * cos$1(t), -sinRadius * sin$1(t)]);
stream.point(point[0], point[1]);
}
}
// Returns the signed angle of a cartesian point relative to [cosRadius, 0, 0].
function circleRadius(cosRadius, point) {
point = cartesian(point), point[0] -= cosRadius;
cartesianNormalizeInPlace(point);
var radius = acos(-point[1]);
return ((-point[2] < 0 ? -radius : radius) + tau$4 - epsilon$4) % tau$4;
}
function circle$1() {
var center = constant$12([0, 0]),
radius = constant$12(90),
precision = constant$12(6),
ring,
rotate,
stream = {point: point};
function point(x, y) {
ring.push(x = rotate(x, y));
x[0] *= degrees$1, x[1] *= degrees$1;
}
function circle() {
var c = center.apply(this, arguments),
r = radius.apply(this, arguments) * radians,
p = precision.apply(this, arguments) * radians;
ring = [];
rotate = rotateRadians(-c[0] * radians, -c[1] * radians, 0).invert;
circleStream(stream, r, p, 1);
c = {type: "Polygon", coordinates: [ring]};
ring = rotate = null;
return c;
}
circle.center = function(_) {
return arguments.length ? (center = typeof _ === "function" ? _ : constant$12([+_[0], +_[1]]), circle) : center;
};
circle.radius = function(_) {
return arguments.length ? (radius = typeof _ === "function" ? _ : constant$12(+_), circle) : radius;
};
circle.precision = function(_) {
return arguments.length ? (precision = typeof _ === "function" ? _ : constant$12(+_), circle) : precision;
};
return circle;
}
function clipBuffer() {
var lines = [],
line;
return {
point: function(x, y) {
line.push([x, y]);
},
lineStart: function() {
lines.push(line = []);
},
lineEnd: noop$2,
rejoin: function() {
if (lines.length > 1) lines.push(lines.pop().concat(lines.shift()));
},
result: function() {
var result = lines;
lines = [];
line = null;
return result;
}
};
}
function clipLine(a, b, x0, y0, x1, y1) {
var ax = a[0],
ay = a[1],
bx = b[0],
by = b[1],
t0 = 0,
t1 = 1,
dx = bx - ax,
dy = by - ay,
r;
r = x0 - ax;
if (!dx && r > 0) return;
r /= dx;
if (dx < 0) {
if (r < t0) return;
if (r < t1) t1 = r;
} else if (dx > 0) {
if (r > t1) return;
if (r > t0) t0 = r;
}
r = x1 - ax;
if (!dx && r < 0) return;
r /= dx;
if (dx < 0) {
if (r > t1) return;
if (r > t0) t0 = r;
} else if (dx > 0) {
if (r < t0) return;
if (r < t1) t1 = r;
}
r = y0 - ay;
if (!dy && r > 0) return;
r /= dy;
if (dy < 0) {
if (r < t0) return;
if (r < t1) t1 = r;
} else if (dy > 0) {
if (r > t1) return;
if (r > t0) t0 = r;
}
r = y1 - ay;
if (!dy && r < 0) return;
r /= dy;
if (dy < 0) {
if (r > t1) return;
if (r > t0) t0 = r;
} else if (dy > 0) {
if (r < t0) return;
if (r < t1) t1 = r;
}
if (t0 > 0) a[0] = ax + t0 * dx, a[1] = ay + t0 * dy;
if (t1 < 1) b[0] = ax + t1 * dx, b[1] = ay + t1 * dy;
return true;
}
function pointEqual(a, b) {
return abs(a[0] - b[0]) < epsilon$4 && abs(a[1] - b[1]) < epsilon$4;
}
function Intersection(point, points, other, entry) {
this.x = point;
this.z = points;
this.o = other; // another intersection
this.e = entry; // is an entry?
this.v = false; // visited
this.n = this.p = null; // next & previous
}
// A generalized polygon clipping algorithm: given a polygon that has been cut
// into its visible line segments, and rejoins the segments by interpolating
// along the clip edge.
function clipPolygon(segments, compareIntersection, startInside, interpolate, stream) {
var subject = [],
clip = [],
i,
n;
segments.forEach(function(segment) {
if ((n = segment.length - 1) <= 0) return;
var n, p0 = segment[0], p1 = segment[n], x;
// If the first and last points of a segment are coincident, then treat as a
// closed ring. TODO if all rings are closed, then the winding order of the
// exterior ring should be checked.
if (pointEqual(p0, p1)) {
stream.lineStart();
for (i = 0; i < n; ++i) stream.point((p0 = segment[i])[0], p0[1]);
stream.lineEnd();
return;
}
subject.push(x = new Intersection(p0, segment, null, true));
clip.push(x.o = new Intersection(p0, null, x, false));
subject.push(x = new Intersection(p1, segment, null, false));
clip.push(x.o = new Intersection(p1, null, x, true));
});
if (!subject.length) return;
clip.sort(compareIntersection);
link$1(subject);
link$1(clip);
for (i = 0, n = clip.length; i < n; ++i) {
clip[i].e = startInside = !startInside;
}
var start = subject[0],
points,
point;
while (1) {
// Find first unvisited intersection.
var current = start,
isSubject = true;
while (current.v) if ((current = current.n) === start) return;
points = current.z;
stream.lineStart();
do {
current.v = current.o.v = true;
if (current.e) {
if (isSubject) {
for (i = 0, n = points.length; i < n; ++i) stream.point((point = points[i])[0], point[1]);
} else {
interpolate(current.x, current.n.x, 1, stream);
}
current = current.n;
} else {
if (isSubject) {
points = current.p.z;
for (i = points.length - 1; i >= 0; --i) stream.point((point = points[i])[0], point[1]);
} else {
interpolate(current.x, current.p.x, -1, stream);
}
current = current.p;
}
current = current.o;
points = current.z;
isSubject = !isSubject;
} while (!current.v);
stream.lineEnd();
}
}
function link$1(array) {
if (!(n = array.length)) return;
var n,
i = 0,
a = array[0],
b;
while (++i < n) {
a.n = b = array[i];
b.p = a;
a = b;
}
a.n = b = array[0];
b.p = a;
}
var clipMax = 1e9;
var clipMin = -clipMax;
// TODO Use d3-polygon’s polygonContains here for the ring check?
// TODO Eliminate duplicate buffering in clipBuffer and polygon.push?
function clipExtent(x0, y0, x1, y1) {
function visible(x, y) {
return x0 <= x && x <= x1 && y0 <= y && y <= y1;
}
function interpolate(from, to, direction, stream) {
var a = 0, a1 = 0;
if (from == null
|| (a = corner(from, direction)) !== (a1 = corner(to, direction))
|| comparePoint(from, to) < 0 ^ direction > 0) {
do stream.point(a === 0 || a === 3 ? x0 : x1, a > 1 ? y1 : y0);
while ((a = (a + direction + 4) % 4) !== a1);
} else {
stream.point(to[0], to[1]);
}
}
function corner(p, direction) {
return abs(p[0] - x0) < epsilon$4 ? direction > 0 ? 0 : 3
: abs(p[0] - x1) < epsilon$4 ? direction > 0 ? 2 : 1
: abs(p[1] - y0) < epsilon$4 ? direction > 0 ? 1 : 0
: direction > 0 ? 3 : 2; // abs(p[1] - y1) < epsilon
}
function compareIntersection(a, b) {
return comparePoint(a.x, b.x);
}
function comparePoint(a, b) {
var ca = corner(a, 1),
cb = corner(b, 1);
return ca !== cb ? ca - cb
: ca === 0 ? b[1] - a[1]
: ca === 1 ? a[0] - b[0]
: ca === 2 ? a[1] - b[1]
: b[0] - a[0];
}
return function(stream) {
var activeStream = stream,
bufferStream = clipBuffer(),
segments,
polygon,
ring,
x__, y__, v__, // first point
x_, y_, v_, // previous point
first,
clean;
var clipStream = {
point: point,
lineStart: lineStart,
lineEnd: lineEnd,
polygonStart: polygonStart,
polygonEnd: polygonEnd
};
function point(x, y) {
if (visible(x, y)) activeStream.point(x, y);
}
function polygonInside() {
var winding = 0;
for (var i = 0, n = polygon.length; i < n; ++i) {
for (var ring = polygon[i], j = 1, m = ring.length, point = ring[0], a0, a1, b0 = point[0], b1 = point[1]; j < m; ++j) {
a0 = b0, a1 = b1, point = ring[j], b0 = point[0], b1 = point[1];
if (a1 <= y1) { if (b1 > y1 && (b0 - a0) * (y1 - a1) > (b1 - a1) * (x0 - a0)) ++winding; }
else { if (b1 <= y1 && (b0 - a0) * (y1 - a1) < (b1 - a1) * (x0 - a0)) --winding; }
}
}
return winding;
}
// Buffer geometry within a polygon and then clip it en masse.
function polygonStart() {
activeStream = bufferStream, segments = [], polygon = [], clean = true;
}
function polygonEnd() {
var startInside = polygonInside(),
cleanInside = clean && startInside,
visible = (segments = merge(segments)).length;
if (cleanInside || visible) {
stream.polygonStart();
if (cleanInside) {
stream.lineStart();
interpolate(null, null, 1, stream);
stream.lineEnd();
}
if (visible) {
clipPolygon(segments, compareIntersection, startInside, interpolate, stream);
}
stream.polygonEnd();
}
activeStream = stream, segments = polygon = ring = null;
}
function lineStart() {
clipStream.point = linePoint;
if (polygon) polygon.push(ring = []);
first = true;
v_ = false;
x_ = y_ = NaN;
}
// TODO rather than special-case polygons, simply handle them separately.
// Ideally, coincident intersection points should be jittered to avoid
// clipping issues.
function lineEnd() {
if (segments) {
linePoint(x__, y__);
if (v__ && v_) bufferStream.rejoin();
segments.push(bufferStream.result());
}
clipStream.point = point;
if (v_) activeStream.lineEnd();
}
function linePoint(x, y) {
var v = visible(x, y);
if (polygon) ring.push([x, y]);
if (first) {
x__ = x, y__ = y, v__ = v;
first = false;
if (v) {
activeStream.lineStart();
activeStream.point(x, y);
}
} else {
if (v && v_) activeStream.point(x, y);
else {
var a = [x_ = Math.max(clipMin, Math.min(clipMax, x_)), y_ = Math.max(clipMin, Math.min(clipMax, y_))],
b = [x = Math.max(clipMin, Math.min(clipMax, x)), y = Math.max(clipMin, Math.min(clipMax, y))];
if (clipLine(a, b, x0, y0, x1, y1)) {
if (!v_) {
activeStream.lineStart();
activeStream.point(a[0], a[1]);
}
activeStream.point(b[0], b[1]);
if (!v) activeStream.lineEnd();
clean = false;
} else if (v) {
activeStream.lineStart();
activeStream.point(x, y);
clean = false;
}
}
}
x_ = x, y_ = y, v_ = v;
}
return clipStream;
};
}
function extent$1() {
var x0 = 0,
y0 = 0,
x1 = 960,
y1 = 500,
cache,
cacheStream,
clip;
return clip = {
stream: function(stream) {
return cache && cacheStream === stream ? cache : cache = clipExtent(x0, y0, x1, y1)(cacheStream = stream);
},
extent: function(_) {
return arguments.length ? (x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1], cache = cacheStream = null, clip) : [[x0, y0], [x1, y1]];
}
};
}
var lengthSum;
var lambda0$2;
var sinPhi0$1;
var cosPhi0$1;
var lengthStream = {
sphere: noop$2,
point: noop$2,
lineStart: lengthLineStart,
lineEnd: noop$2,
polygonStart: noop$2,
polygonEnd: noop$2
};
function lengthLineStart() {
lengthStream.point = lengthPointFirst;
lengthStream.lineEnd = lengthLineEnd;
}
function lengthLineEnd() {
lengthStream.point = lengthStream.lineEnd = noop$2;
}
function lengthPointFirst(lambda, phi) {
lambda *= radians, phi *= radians;
lambda0$2 = lambda, sinPhi0$1 = sin$1(phi), cosPhi0$1 = cos$1(phi);
lengthStream.point = lengthPoint;
}
function lengthPoint(lambda, phi) {
lambda *= radians, phi *= radians;
var sinPhi = sin$1(phi),
cosPhi = cos$1(phi),
delta = abs(lambda - lambda0$2),
cosDelta = cos$1(delta),
sinDelta = sin$1(delta),
x = cosPhi * sinDelta,
y = cosPhi0$1 * sinPhi - sinPhi0$1 * cosPhi * cosDelta,
z = sinPhi0$1 * sinPhi + cosPhi0$1 * cosPhi * cosDelta;
lengthSum.add(atan2(sqrt$1(x * x + y * y), z));
lambda0$2 = lambda, sinPhi0$1 = sinPhi, cosPhi0$1 = cosPhi;
}
function length$2(object) {
if (lengthSum) lengthSum.reset();
else lengthSum = adder();
stream(object, lengthStream);
return +lengthSum;
}
var coordinates = [null, null];
var object$1 = {type: "LineString", coordinates: coordinates};
function distance(a, b) {
coordinates[0] = a;
coordinates[1] = b;
return length$2(object$1);
}
function graticuleX(y0, y1, dy) {
var y = range(y0, y1 - epsilon$4, dy).concat(y1);
return function(x) { return y.map(function(y) { return [x, y]; }); };
}
function graticuleY(x0, x1, dx) {
var x = range(x0, x1 - epsilon$4, dx).concat(x1);
return function(y) { return x.map(function(x) { return [x, y]; }); };
}
function graticule() {
var x1, x0, X1, X0,
y1, y0, Y1, Y0,
dx = 10, dy = dx, DX = 90, DY = 360,
x, y, X, Y,
precision = 2.5;
function graticule() {
return {type: "MultiLineString", coordinates: lines()};
}
function lines() {
return range(ceil(X0 / DX) * DX, X1, DX).map(X)
.concat(range(ceil(Y0 / DY) * DY, Y1, DY).map(Y))
.concat(range(ceil(x0 / dx) * dx, x1, dx).filter(function(x) { return abs(x % DX) > epsilon$4; }).map(x))
.concat(range(ceil(y0 / dy) * dy, y1, dy).filter(function(y) { return abs(y % DY) > epsilon$4; }).map(y));
}
graticule.lines = function() {
return lines().map(function(coordinates) { return {type: "LineString", coordinates: coordinates}; });
};
graticule.outline = function() {
return {
type: "Polygon",
coordinates: [
X(X0).concat(
Y(Y1).slice(1),
X(X1).reverse().slice(1),
Y(Y0).reverse().slice(1))
]
};
};
graticule.extent = function(_) {
if (!arguments.length) return graticule.extentMinor();
return graticule.extentMajor(_).extentMinor(_);
};
graticule.extentMajor = function(_) {
if (!arguments.length) return [[X0, Y0], [X1, Y1]];
X0 = +_[0][0], X1 = +_[1][0];
Y0 = +_[0][1], Y1 = +_[1][1];
if (X0 > X1) _ = X0, X0 = X1, X1 = _;
if (Y0 > Y1) _ = Y0, Y0 = Y1, Y1 = _;
return graticule.precision(precision);
};
graticule.extentMinor = function(_) {
if (!arguments.length) return [[x0, y0], [x1, y1]];
x0 = +_[0][0], x1 = +_[1][0];
y0 = +_[0][1], y1 = +_[1][1];
if (x0 > x1) _ = x0, x0 = x1, x1 = _;
if (y0 > y1) _ = y0, y0 = y1, y1 = _;
return graticule.precision(precision);
};
graticule.step = function(_) {
if (!arguments.length) return graticule.stepMinor();
return graticule.stepMajor(_).stepMinor(_);
};
graticule.stepMajor = function(_) {
if (!arguments.length) return [DX, DY];
DX = +_[0], DY = +_[1];
return graticule;
};
graticule.stepMinor = function(_) {
if (!arguments.length) return [dx, dy];
dx = +_[0], dy = +_[1];
return graticule;
};
graticule.precision = function(_) {
if (!arguments.length) return precision;
precision = +_;
x = graticuleX(y0, y1, 90);
y = graticuleY(x0, x1, precision);
X = graticuleX(Y0, Y1, 90);
Y = graticuleY(X0, X1, precision);
return graticule;
};
return graticule
.extentMajor([[-180, -90 + epsilon$4], [180, 90 - epsilon$4]])
.extentMinor([[-180, -80 - epsilon$4], [180, 80 + epsilon$4]]);
}
function interpolate$2(a, b) {
var x0 = a[0] * radians,
y0 = a[1] * radians,
x1 = b[0] * radians,
y1 = b[1] * radians,
cy0 = cos$1(y0),
sy0 = sin$1(y0),
cy1 = cos$1(y1),
sy1 = sin$1(y1),
kx0 = cy0 * cos$1(x0),
ky0 = cy0 * sin$1(x0),
kx1 = cy1 * cos$1(x1),
ky1 = cy1 * sin$1(x1),
d = 2 * asin$1(sqrt$1(haversin(y1 - y0) + cy0 * cy1 * haversin(x1 - x0))),
k = sin$1(d);
var interpolate = d ? function(t) {
var B = sin$1(t *= d) / k,
A = sin$1(d - t) / k,
x = A * kx0 + B * kx1,
y = A * ky0 + B * ky1,
z = A * sy0 + B * sy1;
return [
atan2(y, x) * degrees$1,
atan2(z, sqrt$1(x * x + y * y)) * degrees$1
];
} : function() {
return [x0 * degrees$1, y0 * degrees$1];
};
interpolate.distance = d;
return interpolate;
}
function identity$7(x) {
return x;
}
var areaSum$1 = adder();
var areaRingSum$1 = adder();
var x00;
var y00;
var x0$1;
var y0$1;
var areaStream$1 = {
point: noop$2,
lineStart: noop$2,
lineEnd: noop$2,
polygonStart: function() {
areaStream$1.lineStart = areaRingStart$1;
areaStream$1.lineEnd = areaRingEnd$1;
},
polygonEnd: function() {
areaStream$1.lineStart = areaStream$1.lineEnd = areaStream$1.point = noop$2;
areaSum$1.add(abs(areaRingSum$1));
areaRingSum$1.reset();
},
result: function() {
var area = areaSum$1 / 2;
areaSum$1.reset();
return area;
}
};
function areaRingStart$1() {
areaStream$1.point = areaPointFirst$1;
}
function areaPointFirst$1(x, y) {
areaStream$1.point = areaPoint$1;
x00 = x0$1 = x, y00 = y0$1 = y;
}
function areaPoint$1(x, y) {
areaRingSum$1.add(y0$1 * x - x0$1 * y);
x0$1 = x, y0$1 = y;
}
function areaRingEnd$1() {
areaPoint$1(x00, y00);
}
var x0$2 = Infinity;
var y0$2 = x0$2;
var x1 = -x0$2;
var y1 = x1;
var boundsStream$1 = {
point: boundsPoint$1,
lineStart: noop$2,
lineEnd: noop$2,
polygonStart: noop$2,
polygonEnd: noop$2,
result: function() {
var bounds = [[x0$2, y0$2], [x1, y1]];
x1 = y1 = -(y0$2 = x0$2 = Infinity);
return bounds;
}
};
function boundsPoint$1(x, y) {
if (x < x0$2) x0$2 = x;
if (x > x1) x1 = x;
if (y < y0$2) y0$2 = y;
if (y > y1) y1 = y;
}
var X0$1 = 0;
var Y0$1 = 0;
var Z0$1 = 0;
var X1$1 = 0;
var Y1$1 = 0;
var Z1$1 = 0;
var X2$1 = 0;
var Y2$1 = 0;
var Z2$1 = 0;
var x00$1;
var y00$1;
var x0$3;
var y0$3;
var centroidStream$1 = {
point: centroidPoint$1,
lineStart: centroidLineStart$1,
lineEnd: centroidLineEnd$1,
polygonStart: function() {
centroidStream$1.lineStart = centroidRingStart$1;
centroidStream$1.lineEnd = centroidRingEnd$1;
},
polygonEnd: function() {
centroidStream$1.point = centroidPoint$1;
centroidStream$1.lineStart = centroidLineStart$1;
centroidStream$1.lineEnd = centroidLineEnd$1;
},
result: function() {
var centroid = Z2$1 ? [X2$1 / Z2$1, Y2$1 / Z2$1]
: Z1$1 ? [X1$1 / Z1$1, Y1$1 / Z1$1]
: Z0$1 ? [X0$1 / Z0$1, Y0$1 / Z0$1]
: [NaN, NaN];
X0$1 = Y0$1 = Z0$1 =
X1$1 = Y1$1 = Z1$1 =
X2$1 = Y2$1 = Z2$1 = 0;
return centroid;
}
};
function centroidPoint$1(x, y) {
X0$1 += x;
Y0$1 += y;
++Z0$1;
}
function centroidLineStart$1() {
centroidStream$1.point = centroidPointFirstLine;
}
function centroidPointFirstLine(x, y) {
centroidStream$1.point = centroidPointLine;
centroidPoint$1(x0$3 = x, y0$3 = y);
}
function centroidPointLine(x, y) {
var dx = x - x0$3, dy = y - y0$3, z = sqrt$1(dx * dx + dy * dy);
X1$1 += z * (x0$3 + x) / 2;
Y1$1 += z * (y0$3 + y) / 2;
Z1$1 += z;
centroidPoint$1(x0$3 = x, y0$3 = y);
}
function centroidLineEnd$1() {
centroidStream$1.point = centroidPoint$1;
}
function centroidRingStart$1() {
centroidStream$1.point = centroidPointFirstRing;
}
function centroidRingEnd$1() {
centroidPointRing(x00$1, y00$1);
}
function centroidPointFirstRing(x, y) {
centroidStream$1.point = centroidPointRing;
centroidPoint$1(x00$1 = x0$3 = x, y00$1 = y0$3 = y);
}
function centroidPointRing(x, y) {
var dx = x - x0$3,
dy = y - y0$3,
z = sqrt$1(dx * dx + dy * dy);
X1$1 += z * (x0$3 + x) / 2;
Y1$1 += z * (y0$3 + y) / 2;
Z1$1 += z;
z = y0$3 * x - x0$3 * y;
X2$1 += z * (x0$3 + x);
Y2$1 += z * (y0$3 + y);
Z2$1 += z * 3;
centroidPoint$1(x0$3 = x, y0$3 = y);
}
function PathContext(context) {
var pointRadius = 4.5;
var stream = {
point: point,
// While inside a line, override point to moveTo then lineTo.
lineStart: function() { stream.point = pointLineStart; },
lineEnd: lineEnd,
// While inside a polygon, override lineEnd to closePath.
polygonStart: function() { stream.lineEnd = lineEndPolygon; },
polygonEnd: function() { stream.lineEnd = lineEnd; stream.point = point; },
pointRadius: function(_) {
pointRadius = _;
return stream;
},
result: noop$2
};
function point(x, y) {
context.moveTo(x + pointRadius, y);
context.arc(x, y, pointRadius, 0, tau$4);
}
function pointLineStart(x, y) {
context.moveTo(x, y);
stream.point = pointLine;
}
function pointLine(x, y) {
context.lineTo(x, y);
}
function lineEnd() {
stream.point = point;
}
function lineEndPolygon() {
context.closePath();
}
return stream;
}
function PathString() {
var pointCircle = circle$2(4.5),
string = [];
var stream = {
point: point,
lineStart: lineStart,
lineEnd: lineEnd,
polygonStart: function() {
stream.lineEnd = lineEndPolygon;
},
polygonEnd: function() {
stream.lineEnd = lineEnd;
stream.point = point;
},
pointRadius: function(_) {
pointCircle = circle$2(_);
return stream;
},
result: function() {
if (string.length) {
var result = string.join("");
string = [];
return result;
}
}
};
function point(x, y) {
string.push("M", x, ",", y, pointCircle);
}
function pointLineStart(x, y) {
string.push("M", x, ",", y);
stream.point = pointLine;
}
function pointLine(x, y) {
string.push("L", x, ",", y);
}
function lineStart() {
stream.point = pointLineStart;
}
function lineEnd() {
stream.point = point;
}
function lineEndPolygon() {
string.push("Z");
}
return stream;
}
function circle$2(radius) {
return "m0," + radius
+ "a" + radius + "," + radius + " 0 1,1 0," + -2 * radius
+ "a" + radius + "," + radius + " 0 1,1 0," + 2 * radius
+ "z";
}
function index$3() {
var pointRadius = 4.5,
projection,
projectionStream,
context,
contextStream;
function path(object) {
if (object) {
if (typeof pointRadius === "function") contextStream.pointRadius(+pointRadius.apply(this, arguments));
stream(object, projectionStream(contextStream));
}
return contextStream.result();
}
path.area = function(object) {
stream(object, projectionStream(areaStream$1));
return areaStream$1.result();
};
path.bounds = function(object) {
stream(object, projectionStream(boundsStream$1));
return boundsStream$1.result();
};
path.centroid = function(object) {
stream(object, projectionStream(centroidStream$1));
return centroidStream$1.result();
};
path.projection = function(_) {
return arguments.length ? (projectionStream = (projection = _) == null ? identity$7 : _.stream, path) : projection;
};
path.context = function(_) {
if (!arguments.length) return context;
contextStream = (context = _) == null ? new PathString : new PathContext(_);
if (typeof pointRadius !== "function") contextStream.pointRadius(pointRadius);
return path;
};
path.pointRadius = function(_) {
if (!arguments.length) return pointRadius;
pointRadius = typeof _ === "function" ? _ : (contextStream.pointRadius(+_), +_);
return path;
};
return path.projection(null).context(null);
}
var sum$2 = adder();
function polygonContains(polygon, point) {
var lambda = point[0],
phi = point[1],
normal = [sin$1(lambda), -cos$1(lambda), 0],
angle = 0,
winding = 0;
for (var i = 0, n = polygon.length; i < n; ++i) {
if (!(m = (ring = polygon[i]).length)) continue;
var ring,
m,
point0 = ring[m - 1],
lambda0 = point0[0],
phi0 = point0[1] / 2 + quarterPi,
sinPhi0 = sin$1(phi0),
cosPhi0 = cos$1(phi0);
for (var j = 0; j < m; ++j, lambda0 = lambda1, sinPhi0 = sinPhi1, cosPhi0 = cosPhi1, point0 = point1) {
var point1 = ring[j],
lambda1 = point1[0],
phi1 = point1[1] / 2 + quarterPi,
sinPhi1 = sin$1(phi1),
cosPhi1 = cos$1(phi1),
delta = lambda1 - lambda0,
sign = delta >= 0 ? 1 : -1,
absDelta = sign * delta,
antimeridian = absDelta > pi$4,
k = sinPhi0 * sinPhi1;
sum$2.add(atan2(k * sign * sin$1(absDelta), cosPhi0 * cosPhi1 + k * cos$1(absDelta)));
angle += antimeridian ? delta + sign * tau$4 : delta;
// Are the longitudes either side of the point’s meridian (lambda),
// and are the latitudes smaller than the parallel (phi)?
if (antimeridian ^ lambda0 >= lambda ^ lambda1 >= lambda) {
var arc = cartesianCross(cartesian(point0), cartesian(point1));
cartesianNormalizeInPlace(arc);
var intersection = cartesianCross(normal, arc);
cartesianNormalizeInPlace(intersection);
var phiArc = (antimeridian ^ delta >= 0 ? -1 : 1) * asin$1(intersection[2]);
if (phi > phiArc || phi === phiArc && (arc[0] || arc[1])) {
winding += antimeridian ^ delta >= 0 ? 1 : -1;
}
}
}
}
// First, determine whether the South pole is inside or outside:
//
// It is inside if:
// * the polygon winds around it in a clockwise direction.
// * the polygon does not (cumulatively) wind around it, but has a negative
// (counter-clockwise) area.
//
// Second, count the (signed) number of times a segment crosses a lambda
// from the point to the South pole. If it is zero, then the point is the
// same side as the South pole.
var contains = (angle < -epsilon$4 || angle < epsilon$4 && sum$2 < -epsilon$4) ^ (winding & 1);
sum$2.reset();
return contains;
}
function clip(pointVisible, clipLine, interpolate, start) {
return function(rotate, sink) {
var line = clipLine(sink),
rotatedStart = rotate.invert(start[0], start[1]),
ringBuffer = clipBuffer(),
ringSink = clipLine(ringBuffer),
polygonStarted = false,
polygon,
segments,
ring;
var clip = {
point: point,
lineStart: lineStart,
lineEnd: lineEnd,
polygonStart: function() {
clip.point = pointRing;
clip.lineStart = ringStart;
clip.lineEnd = ringEnd;
segments = [];
polygon = [];
},
polygonEnd: function() {
clip.point = point;
clip.lineStart = lineStart;
clip.lineEnd = lineEnd;
segments = merge(segments);
var startInside = polygonContains(polygon, rotatedStart);
if (segments.length) {
if (!polygonStarted) sink.polygonStart(), polygonStarted = true;
clipPolygon(segments, compareIntersection, startInside, interpolate, sink);
} else if (startInside) {
if (!polygonStarted) sink.polygonStart(), polygonStarted = true;
sink.lineStart();
interpolate(null, null, 1, sink);
sink.lineEnd();
}
if (polygonStarted) sink.polygonEnd(), polygonStarted = false;
segments = polygon = null;
},
sphere: function() {
sink.polygonStart();
sink.lineStart();
interpolate(null, null, 1, sink);
sink.lineEnd();
sink.polygonEnd();
}
};
function point(lambda, phi) {
var point = rotate(lambda, phi);
if (pointVisible(lambda = point[0], phi = point[1])) sink.point(lambda, phi);
}
function pointLine(lambda, phi) {
var point = rotate(lambda, phi);
line.point(point[0], point[1]);
}
function lineStart() {
clip.point = pointLine;
line.lineStart();
}
function lineEnd() {
clip.point = point;
line.lineEnd();
}
function pointRing(lambda, phi) {
ring.push([lambda, phi]);
var point = rotate(lambda, phi);
ringSink.point(point[0], point[1]);
}
function ringStart() {
ringSink.lineStart();
ring = [];
}
function ringEnd() {
pointRing(ring[0][0], ring[0][1]);
ringSink.lineEnd();
var clean = ringSink.clean(),
ringSegments = ringBuffer.result(),
i, n = ringSegments.length, m,
segment,
point;
ring.pop();
polygon.push(ring);
ring = null;
if (!n) return;
// No intersections.
if (clean & 1) {
segment = ringSegments[0];
if ((m = segment.length - 1) > 0) {
if (!polygonStarted) sink.polygonStart(), polygonStarted = true;
sink.lineStart();
for (i = 0; i < m; ++i) sink.point((point = segment[i])[0], point[1]);
sink.lineEnd();
}
return;
}
// Rejoin connected segments.
// TODO reuse ringBuffer.rejoin()?
if (n > 1 && clean & 2) ringSegments.push(ringSegments.pop().concat(ringSegments.shift()));
segments.push(ringSegments.filter(validSegment));
}
return clip;
};
}
function validSegment(segment) {
return segment.length > 1;
}
// Intersections are sorted along the clip edge. For both antimeridian cutting
// and circle clipping, the same comparison is used.
function compareIntersection(a, b) {
return ((a = a.x)[0] < 0 ? a[1] - halfPi$3 - epsilon$4 : halfPi$3 - a[1])
- ((b = b.x)[0] < 0 ? b[1] - halfPi$3 - epsilon$4 : halfPi$3 - b[1]);
}
var clipAntimeridian = clip(
function() { return true; },
clipAntimeridianLine,
clipAntimeridianInterpolate,
[-pi$4, -halfPi$3]
);
// Takes a line and cuts into visible segments. Return values: 0 - there were
// intersections or the line was empty; 1 - no intersections; 2 - there were
// intersections, and the first and last segments should be rejoined.
function clipAntimeridianLine(stream) {
var lambda0 = NaN,
phi0 = NaN,
sign0 = NaN,
clean; // no intersections
return {
lineStart: function() {
stream.lineStart();
clean = 1;
},
point: function(lambda1, phi1) {
var sign1 = lambda1 > 0 ? pi$4 : -pi$4,
delta = abs(lambda1 - lambda0);
if (abs(delta - pi$4) < epsilon$4) { // line crosses a pole
stream.point(lambda0, phi0 = (phi0 + phi1) / 2 > 0 ? halfPi$3 : -halfPi$3);
stream.point(sign0, phi0);
stream.lineEnd();
stream.lineStart();
stream.point(sign1, phi0);
stream.point(lambda1, phi0);
clean = 0;
} else if (sign0 !== sign1 && delta >= pi$4) { // line crosses antimeridian
if (abs(lambda0 - sign0) < epsilon$4) lambda0 -= sign0 * epsilon$4; // handle degeneracies
if (abs(lambda1 - sign1) < epsilon$4) lambda1 -= sign1 * epsilon$4;
phi0 = clipAntimeridianIntersect(lambda0, phi0, lambda1, phi1);
stream.point(sign0, phi0);
stream.lineEnd();
stream.lineStart();
stream.point(sign1, phi0);
clean = 0;
}
stream.point(lambda0 = lambda1, phi0 = phi1);
sign0 = sign1;
},
lineEnd: function() {
stream.lineEnd();
lambda0 = phi0 = NaN;
},
clean: function() {
return 2 - clean; // if intersections, rejoin first and last segments
}
};
}
function clipAntimeridianIntersect(lambda0, phi0, lambda1, phi1) {
var cosPhi0,
cosPhi1,
sinLambda0Lambda1 = sin$1(lambda0 - lambda1);
return abs(sinLambda0Lambda1) > epsilon$4
? atan((sin$1(phi0) * (cosPhi1 = cos$1(phi1)) * sin$1(lambda1)
- sin$1(phi1) * (cosPhi0 = cos$1(phi0)) * sin$1(lambda0))
/ (cosPhi0 * cosPhi1 * sinLambda0Lambda1))
: (phi0 + phi1) / 2;
}
function clipAntimeridianInterpolate(from, to, direction, stream) {
var phi;
if (from == null) {
phi = direction * halfPi$3;
stream.point(-pi$4, phi);
stream.point(0, phi);
stream.point(pi$4, phi);
stream.point(pi$4, 0);
stream.point(pi$4, -phi);
stream.point(0, -phi);
stream.point(-pi$4, -phi);
stream.point(-pi$4, 0);
stream.point(-pi$4, phi);
} else if (abs(from[0] - to[0]) > epsilon$4) {
var lambda = from[0] < to[0] ? pi$4 : -pi$4;
phi = direction * lambda / 2;
stream.point(-lambda, phi);
stream.point(0, phi);
stream.point(lambda, phi);
} else {
stream.point(to[0], to[1]);
}
}
function clipCircle(radius, delta) {
var cr = cos$1(radius),
smallRadius = cr > 0,
notHemisphere = abs(cr) > epsilon$4; // TODO optimise for this common case
function interpolate(from, to, direction, stream) {
circleStream(stream, radius, delta, direction, from, to);
}
function visible(lambda, phi) {
return cos$1(lambda) * cos$1(phi) > cr;
}
// Takes a line and cuts into visible segments. Return values used for polygon
// clipping: 0 - there were intersections or the line was empty; 1 - no
// intersections 2 - there were intersections, and the first and last segments
// should be rejoined.
function clipLine(stream) {
var point0, // previous point
c0, // code for previous point
v0, // visibility of previous point
v00, // visibility of first point
clean; // no intersections
return {
lineStart: function() {
v00 = v0 = false;
clean = 1;
},
point: function(lambda, phi) {
var point1 = [lambda, phi],
point2,
v = visible(lambda, phi),
c = smallRadius
? v ? 0 : code(lambda, phi)
: v ? code(lambda + (lambda < 0 ? pi$4 : -pi$4), phi) : 0;
if (!point0 && (v00 = v0 = v)) stream.lineStart();
// Handle degeneracies.
// TODO ignore if not clipping polygons.
if (v !== v0) {
point2 = intersect(point0, point1);
if (pointEqual(point0, point2) || pointEqual(point1, point2)) {
point1[0] += epsilon$4;
point1[1] += epsilon$4;
v = visible(point1[0], point1[1]);
}
}
if (v !== v0) {
clean = 0;
if (v) {
// outside going in
stream.lineStart();
point2 = intersect(point1, point0);
stream.point(point2[0], point2[1]);
} else {
// inside going out
point2 = intersect(point0, point1);
stream.point(point2[0], point2[1]);
stream.lineEnd();
}
point0 = point2;
} else if (notHemisphere && point0 && smallRadius ^ v) {
var t;
// If the codes for two points are different, or are both zero,
// and there this segment intersects with the small circle.
if (!(c & c0) && (t = intersect(point1, point0, true))) {
clean = 0;
if (smallRadius) {
stream.lineStart();
stream.point(t[0][0], t[0][1]);
stream.point(t[1][0], t[1][1]);
stream.lineEnd();
} else {
stream.point(t[1][0], t[1][1]);
stream.lineEnd();
stream.lineStart();
stream.point(t[0][0], t[0][1]);
}
}
}
if (v && (!point0 || !pointEqual(point0, point1))) {
stream.point(point1[0], point1[1]);
}
point0 = point1, v0 = v, c0 = c;
},
lineEnd: function() {
if (v0) stream.lineEnd();
point0 = null;
},
// Rejoin first and last segments if there were intersections and the first
// and last points were visible.
clean: function() {
return clean | ((v00 && v0) << 1);
}
};
}
// Intersects the great circle between a and b with the clip circle.
function intersect(a, b, two) {
var pa = cartesian(a),
pb = cartesian(b);
// We have two planes, n1.p = d1 and n2.p = d2.
// Find intersection line p(t) = c1 n1 + c2 n2 + t (n1 ⨯ n2).
var n1 = [1, 0, 0], // normal
n2 = cartesianCross(pa, pb),
n2n2 = cartesianDot(n2, n2),
n1n2 = n2[0], // cartesianDot(n1, n2),
determinant = n2n2 - n1n2 * n1n2;
// Two polar points.
if (!determinant) return !two && a;
var c1 = cr * n2n2 / determinant,
c2 = -cr * n1n2 / determinant,
n1xn2 = cartesianCross(n1, n2),
A = cartesianScale(n1, c1),
B = cartesianScale(n2, c2);
cartesianAddInPlace(A, B);
// Solve |p(t)|^2 = 1.
var u = n1xn2,
w = cartesianDot(A, u),
uu = cartesianDot(u, u),
t2 = w * w - uu * (cartesianDot(A, A) - 1);
if (t2 < 0) return;
var t = sqrt$1(t2),
q = cartesianScale(u, (-w - t) / uu);
cartesianAddInPlace(q, A);
q = spherical(q);
if (!two) return q;
// Two intersection points.
var lambda0 = a[0],
lambda1 = b[0],
phi0 = a[1],
phi1 = b[1],
z;
if (lambda1 < lambda0) z = lambda0, lambda0 = lambda1, lambda1 = z;
var delta = lambda1 - lambda0,
polar = abs(delta - pi$4) < epsilon$4,
meridian = polar || delta < epsilon$4;
if (!polar && phi1 < phi0) z = phi0, phi0 = phi1, phi1 = z;
// Check that the first point is between a and b.
if (meridian
? polar
? phi0 + phi1 > 0 ^ q[1] < (abs(q[0] - lambda0) < epsilon$4 ? phi0 : phi1)
: phi0 <= q[1] && q[1] <= phi1
: delta > pi$4 ^ (lambda0 <= q[0] && q[0] <= lambda1)) {
var q1 = cartesianScale(u, (-w + t) / uu);
cartesianAddInPlace(q1, A);
return [q, spherical(q1)];
}
}
// Generates a 4-bit vector representing the location of a point relative to
// the small circle's bounding box.
function code(lambda, phi) {
var r = smallRadius ? radius : pi$4 - radius,
code = 0;
if (lambda < -r) code |= 1; // left
else if (lambda > r) code |= 2; // right
if (phi < -r) code |= 4; // below
else if (phi > r) code |= 8; // above
return code;
}
return clip(visible, clipLine, interpolate, smallRadius ? [0, -radius] : [-pi$4, radius - pi$4]);
}
function transform$1(prototype) {
return {
stream: transform$2(prototype)
};
}
function transform$2(prototype) {
function T() {}
var p = T.prototype = Object.create(Transform$1.prototype);
for (var k in prototype) p[k] = prototype[k];
return function(stream) {
var t = new T;
t.stream = stream;
return t;
};
}
function Transform$1() {}
Transform$1.prototype = {
point: function(x, y) { this.stream.point(x, y); },
sphere: function() { this.stream.sphere(); },
lineStart: function() { this.stream.lineStart(); },
lineEnd: function() { this.stream.lineEnd(); },
polygonStart: function() { this.stream.polygonStart(); },
polygonEnd: function() { this.stream.polygonEnd(); }
};
var maxDepth = 16;
var cosMinDistance = cos$1(30 * radians);
// cos(minimum angular distance)
function resample(project, delta2) {
return +delta2 ? resample$1(project, delta2) : resampleNone(project);
}
function resampleNone(project) {
return transform$2({
point: function(x, y) {
x = project(x, y);
this.stream.point(x[0], x[1]);
}
});
}
function resample$1(project, delta2) {
function resampleLineTo(x0, y0, lambda0, a0, b0, c0, x1, y1, lambda1, a1, b1, c1, depth, stream) {
var dx = x1 - x0,
dy = y1 - y0,
d2 = dx * dx + dy * dy;
if (d2 > 4 * delta2 && depth--) {
var a = a0 + a1,
b = b0 + b1,
c = c0 + c1,
m = sqrt$1(a * a + b * b + c * c),
phi2 = asin$1(c /= m),
lambda2 = abs(abs(c) - 1) < epsilon$4 || abs(lambda0 - lambda1) < epsilon$4 ? (lambda0 + lambda1) / 2 : atan2(b, a),
p = project(lambda2, phi2),
x2 = p[0],
y2 = p[1],
dx2 = x2 - x0,
dy2 = y2 - y0,
dz = dy * dx2 - dx * dy2;
if (dz * dz / d2 > delta2 // perpendicular projected distance
|| abs((dx * dx2 + dy * dy2) / d2 - 0.5) > 0.3 // midpoint close to an end
|| a0 * a1 + b0 * b1 + c0 * c1 < cosMinDistance) { // angular distance
resampleLineTo(x0, y0, lambda0, a0, b0, c0, x2, y2, lambda2, a /= m, b /= m, c, depth, stream);
stream.point(x2, y2);
resampleLineTo(x2, y2, lambda2, a, b, c, x1, y1, lambda1, a1, b1, c1, depth, stream);
}
}
}
return function(stream) {
var lambda00, x00, y00, a00, b00, c00, // first point
lambda0, x0, y0, a0, b0, c0; // previous point
var resampleStream = {
point: point,
lineStart: lineStart,
lineEnd: lineEnd,
polygonStart: function() { stream.polygonStart(); resampleStream.lineStart = ringStart; },
polygonEnd: function() { stream.polygonEnd(); resampleStream.lineStart = lineStart; }
};
function point(x, y) {
x = project(x, y);
stream.point(x[0], x[1]);
}
function lineStart() {
x0 = NaN;
resampleStream.point = linePoint;
stream.lineStart();
}
function linePoint(lambda, phi) {
var c = cartesian([lambda, phi]), p = project(lambda, phi);
resampleLineTo(x0, y0, lambda0, a0, b0, c0, x0 = p[0], y0 = p[1], lambda0 = lambda, a0 = c[0], b0 = c[1], c0 = c[2], maxDepth, stream);
stream.point(x0, y0);
}
function lineEnd() {
resampleStream.point = point;
stream.lineEnd();
}
function ringStart() {
lineStart();
resampleStream.point = ringPoint;
resampleStream.lineEnd = ringEnd;
}
function ringPoint(lambda, phi) {
linePoint(lambda00 = lambda, phi), x00 = x0, y00 = y0, a00 = a0, b00 = b0, c00 = c0;
resampleStream.point = linePoint;
}
function ringEnd() {
resampleLineTo(x0, y0, lambda0, a0, b0, c0, x00, y00, lambda00, a00, b00, c00, maxDepth, stream);
resampleStream.lineEnd = lineEnd;
lineEnd();
}
return resampleStream;
};
}
var transformRadians = transform$2({
point: function(x, y) {
this.stream.point(x * radians, y * radians);
}
});
function projection(project) {
return projectionMutator(function() { return project; })();
}
function projectionMutator(projectAt) {
var project,
k = 150, // scale
x = 480, y = 250, // translate
dx, dy, lambda = 0, phi = 0, // center
deltaLambda = 0, deltaPhi = 0, deltaGamma = 0, rotate, projectRotate, // rotate
theta = null, preclip = clipAntimeridian, // clip angle
x0 = null, y0, x1, y1, postclip = identity$7, // clip extent
delta2 = 0.5, projectResample = resample(projectTransform, delta2), // precision
cache,
cacheStream;
function projection(point) {
point = projectRotate(point[0] * radians, point[1] * radians);
return [point[0] * k + dx, dy - point[1] * k];
}
function invert(point) {
point = projectRotate.invert((point[0] - dx) / k, (dy - point[1]) / k);
return point && [point[0] * degrees$1, point[1] * degrees$1];
}
function projectTransform(x, y) {
return x = project(x, y), [x[0] * k + dx, dy - x[1] * k];
}
projection.stream = function(stream) {
return cache && cacheStream === stream ? cache : cache = transformRadians(preclip(rotate, projectResample(postclip(cacheStream = stream))));
};
projection.clipAngle = function(_) {
return arguments.length ? (preclip = +_ ? clipCircle(theta = _ * radians, 6 * radians) : (theta = null, clipAntimeridian), reset()) : theta * degrees$1;
};
projection.clipExtent = function(_) {
return arguments.length ? (postclip = _ == null ? (x0 = y0 = x1 = y1 = null, identity$7) : clipExtent(x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1]), reset()) : x0 == null ? null : [[x0, y0], [x1, y1]];
};
projection.scale = function(_) {
return arguments.length ? (k = +_, recenter()) : k;
};
projection.translate = function(_) {
return arguments.length ? (x = +_[0], y = +_[1], recenter()) : [x, y];
};
projection.center = function(_) {
return arguments.length ? (lambda = _[0] % 360 * radians, phi = _[1] % 360 * radians, recenter()) : [lambda * degrees$1, phi * degrees$1];
};
projection.rotate = function(_) {
return arguments.length ? (deltaLambda = _[0] % 360 * radians, deltaPhi = _[1] % 360 * radians, deltaGamma = _.length > 2 ? _[2] % 360 * radians : 0, recenter()) : [deltaLambda * degrees$1, deltaPhi * degrees$1, deltaGamma * degrees$1];
};
projection.precision = function(_) {
return arguments.length ? (projectResample = resample(projectTransform, delta2 = _ * _), reset()) : sqrt$1(delta2);
};
function recenter() {
projectRotate = compose(rotate = rotateRadians(deltaLambda, deltaPhi, deltaGamma), project);
var center = project(lambda, phi);
dx = x - center[0] * k;
dy = y + center[1] * k;
return reset();
}
function reset() {
cache = cacheStream = null;
return projection;
}
return function() {
project = projectAt.apply(this, arguments);
projection.invert = project.invert && invert;
return recenter();
};
}
function conicProjection(projectAt) {
var phi0 = 0,
phi1 = pi$4 / 3,
m = projectionMutator(projectAt),
p = m(phi0, phi1);
p.parallels = function(_) {
return arguments.length ? m(phi0 = _[0] * radians, phi1 = _[1] * radians) : [phi0 * degrees$1, phi1 * degrees$1];
};
return p;
}
function conicEqualAreaRaw(y0, y1) {
var sy0 = sin$1(y0),
n = (sy0 + sin$1(y1)) / 2,
c = 1 + sy0 * (2 * n - sy0),
r0 = sqrt$1(c) / n;
function project(x, y) {
var r = sqrt$1(c - 2 * n * sin$1(y)) / n;
return [r * sin$1(x *= n), r0 - r * cos$1(x)];
}
project.invert = function(x, y) {
var r0y = r0 - y;
return [atan2(x, r0y) / n, asin$1((c - (x * x + r0y * r0y) * n * n) / (2 * n))];
};
return project;
}
function conicEqualArea() {
return conicProjection(conicEqualAreaRaw)
.scale(155.424)
.center([0, 33.6442]);
}
function albers() {
return conicEqualArea()
.parallels([29.5, 45.5])
.scale(1070)
.translate([480, 250])
.rotate([96, 0])
.center([-0.6, 38.7]);
}
// The projections must have mutually exclusive clip regions on the sphere,
// as this will avoid emitting interleaving lines and polygons.
function multiplex(streams) {
var n = streams.length;
return {
point: function(x, y) { var i = -1; while (++i < n) streams[i].point(x, y); },
sphere: function() { var i = -1; while (++i < n) streams[i].sphere(); },
lineStart: function() { var i = -1; while (++i < n) streams[i].lineStart(); },
lineEnd: function() { var i = -1; while (++i < n) streams[i].lineEnd(); },
polygonStart: function() { var i = -1; while (++i < n) streams[i].polygonStart(); },
polygonEnd: function() { var i = -1; while (++i < n) streams[i].polygonEnd(); }
};
}
// A composite projection for the United States, configured by default for
// 960×500. The projection also works quite well at 960×600 if you change the
// scale to 1285 and adjust the translate accordingly. The set of standard
// parallels for each region comes from USGS, which is published here:
// http://egsc.usgs.gov/isb/pubs/MapProjections/projections.html#albers
function albersUsa() {
var cache,
cacheStream,
lower48 = albers(), lower48Point,
alaska = conicEqualArea().rotate([154, 0]).center([-2, 58.5]).parallels([55, 65]), alaskaPoint, // EPSG:3338
hawaii = conicEqualArea().rotate([157, 0]).center([-3, 19.9]).parallels([8, 18]), hawaiiPoint, // ESRI:102007
point, pointStream = {point: function(x, y) { point = [x, y]; }};
function albersUsa(coordinates) {
var x = coordinates[0], y = coordinates[1];
return point = null,
(lower48Point.point(x, y), point)
|| (alaskaPoint.point(x, y), point)
|| (hawaiiPoint.point(x, y), point);
}
albersUsa.invert = function(coordinates) {
var k = lower48.scale(),
t = lower48.translate(),
x = (coordinates[0] - t[0]) / k,
y = (coordinates[1] - t[1]) / k;
return (y >= 0.120 && y < 0.234 && x >= -0.425 && x < -0.214 ? alaska
: y >= 0.166 && y < 0.234 && x >= -0.214 && x < -0.115 ? hawaii
: lower48).invert(coordinates);
};
albersUsa.stream = function(stream) {
return cache && cacheStream === stream ? cache : cache = multiplex([lower48.stream(cacheStream = stream), alaska.stream(stream), hawaii.stream(stream)]);
};
albersUsa.precision = function(_) {
if (!arguments.length) return lower48.precision();
lower48.precision(_), alaska.precision(_), hawaii.precision(_);
return albersUsa;
};
albersUsa.scale = function(_) {
if (!arguments.length) return lower48.scale();
lower48.scale(_), alaska.scale(_ * 0.35), hawaii.scale(_);
return albersUsa.translate(lower48.translate());
};
albersUsa.translate = function(_) {
if (!arguments.length) return lower48.translate();
var k = lower48.scale(), x = +_[0], y = +_[1];
lower48Point = lower48
.translate(_)
.clipExtent([[x - 0.455 * k, y - 0.238 * k], [x + 0.455 * k, y + 0.238 * k]])
.stream(pointStream);
alaskaPoint = alaska
.translate([x - 0.307 * k, y + 0.201 * k])
.clipExtent([[x - 0.425 * k + epsilon$4, y + 0.120 * k + epsilon$4], [x - 0.214 * k - epsilon$4, y + 0.234 * k - epsilon$4]])
.stream(pointStream);
hawaiiPoint = hawaii
.translate([x - 0.205 * k, y + 0.212 * k])
.clipExtent([[x - 0.214 * k + epsilon$4, y + 0.166 * k + epsilon$4], [x - 0.115 * k - epsilon$4, y + 0.234 * k - epsilon$4]])
.stream(pointStream);
return albersUsa;
};
return albersUsa.scale(1070);
}
function azimuthalRaw(scale) {
return function(x, y) {
var cx = cos$1(x),
cy = cos$1(y),
k = scale(cx * cy);
return [
k * cy * sin$1(x),
k * sin$1(y)
];
}
}
function azimuthalInvert(angle) {
return function(x, y) {
var z = sqrt$1(x * x + y * y),
c = angle(z),
sc = sin$1(c),
cc = cos$1(c);
return [
atan2(x * sc, z * cc),
asin$1(z && y * sc / z)
];
}
}
var azimuthalEqualAreaRaw = azimuthalRaw(function(cxcy) {
return sqrt$1(2 / (1 + cxcy));
});
azimuthalEqualAreaRaw.invert = azimuthalInvert(function(z) {
return 2 * asin$1(z / 2);
});
function azimuthalEqualArea() {
return projection(azimuthalEqualAreaRaw)
.scale(124.75)
.clipAngle(180 - 1e-3);
}
var azimuthalEquidistantRaw = azimuthalRaw(function(c) {
return (c = acos(c)) && c / sin$1(c);
});
azimuthalEquidistantRaw.invert = azimuthalInvert(function(z) {
return z;
});
function azimuthalEquidistant() {
return projection(azimuthalEquidistantRaw)
.scale(79.4188)
.clipAngle(180 - 1e-3);
}
function mercatorRaw(lambda, phi) {
return [lambda, log$1(tan((halfPi$3 + phi) / 2))];
}
mercatorRaw.invert = function(x, y) {
return [x, 2 * atan(exp(y)) - halfPi$3];
};
function mercator() {
return mercatorProjection(mercatorRaw)
.scale(961 / tau$4);
}
function mercatorProjection(project) {
var m = projection(project),
scale = m.scale,
translate = m.translate,
clipExtent = m.clipExtent,
clipAuto;
m.scale = function(_) {
return arguments.length ? (scale(_), clipAuto && m.clipExtent(null), m) : scale();
};
m.translate = function(_) {
return arguments.length ? (translate(_), clipAuto && m.clipExtent(null), m) : translate();
};
m.clipExtent = function(_) {
if (!arguments.length) return clipAuto ? null : clipExtent();
if (clipAuto = _ == null) {
var k = pi$4 * scale(),
t = translate();
_ = [[t[0] - k, t[1] - k], [t[0] + k, t[1] + k]];
}
clipExtent(_);
return m;
};
return m.clipExtent(null);
}
function tany(y) {
return tan((halfPi$3 + y) / 2);
}
function conicConformalRaw(y0, y1) {
var cy0 = cos$1(y0),
n = y0 === y1 ? sin$1(y0) : log$1(cy0 / cos$1(y1)) / log$1(tany(y1) / tany(y0)),
f = cy0 * pow$1(tany(y0), n) / n;
if (!n) return mercatorRaw;
function project(x, y) {
if (f > 0) { if (y < -halfPi$3 + epsilon$4) y = -halfPi$3 + epsilon$4; }
else { if (y > halfPi$3 - epsilon$4) y = halfPi$3 - epsilon$4; }
var r = f / pow$1(tany(y), n);
return [r * sin$1(n * x), f - r * cos$1(n * x)];
}
project.invert = function(x, y) {
var fy = f - y, r = sign$1(n) * sqrt$1(x * x + fy * fy);
return [atan2(x, fy) / n, 2 * atan(pow$1(f / r, 1 / n)) - halfPi$3];
};
return project;
}
function conicConformal() {
return conicProjection(conicConformalRaw)
.scale(109.5)
.parallels([30, 30]);
}
function equirectangularRaw(lambda, phi) {
return [lambda, phi];
}
equirectangularRaw.invert = equirectangularRaw;
function equirectangular() {
return projection(equirectangularRaw)
.scale(152.63);
}
function conicEquidistantRaw(y0, y1) {
var cy0 = cos$1(y0),
n = y0 === y1 ? sin$1(y0) : (cy0 - cos$1(y1)) / (y1 - y0),
g = cy0 / n + y0;
if (abs(n) < epsilon$4) return equirectangularRaw;
function project(x, y) {
var gy = g - y, nx = n * x;
return [gy * sin$1(nx), g - gy * cos$1(nx)];
}
project.invert = function(x, y) {
var gy = g - y;
return [atan2(x, gy) / n, g - sign$1(n) * sqrt$1(x * x + gy * gy)];
};
return project;
}
function conicEquidistant() {
return conicProjection(conicEquidistantRaw)
.scale(131.154)
.center([0, 13.9389]);
}
function gnomonicRaw(x, y) {
var cy = cos$1(y), k = cos$1(x) * cy;
return [cy * sin$1(x) / k, sin$1(y) / k];
}
gnomonicRaw.invert = azimuthalInvert(atan);
function gnomonic() {
return projection(gnomonicRaw)
.scale(144.049)
.clipAngle(60);
}
function orthographicRaw(x, y) {
return [cos$1(y) * sin$1(x), sin$1(y)];
}
orthographicRaw.invert = azimuthalInvert(asin$1);
function orthographic() {
return projection(orthographicRaw)
.scale(249.5)
.clipAngle(90 + epsilon$4);
}
function stereographicRaw(x, y) {
var cy = cos$1(y), k = 1 + cos$1(x) * cy;
return [cy * sin$1(x) / k, sin$1(y) / k];
}
stereographicRaw.invert = azimuthalInvert(function(z) {
return 2 + atan(z);
});
function stereographic() {
return projection(stereographicRaw)
.scale(250)
.clipAngle(142);
}
function transverseMercatorRaw(lambda, phi) {
return [log$1(tan((halfPi$3 + phi) / 2)), -lambda];
}
transverseMercatorRaw.invert = function(x, y) {
return [-y, 2 * atan(exp(x)) - halfPi$3];
};
function transverseMercator() {
var m = mercatorProjection(transverseMercatorRaw),
center = m.center,
rotate = m.rotate;
m.center = function(_) {
return arguments.length ? center([-_[1], _[0]]) : (_ = center(), [_[1], -_[0]]);
};
m.rotate = function(_) {
return arguments.length ? rotate([_[0], _[1], _.length > 2 ? _[2] + 90 : 90]) : (_ = rotate(), [_[0], _[1], _[2] - 90]);
};
return rotate([0, 0, 90])
.scale(159.155);
}
exports.version = version;
exports.bisect = bisectRight;
exports.bisectRight = bisectRight;
exports.bisectLeft = bisectLeft;
exports.ascending = ascending;
exports.bisector = bisector;
exports.descending = descending;
exports.deviation = deviation;
exports.extent = extent;
exports.histogram = histogram;
exports.thresholdFreedmanDiaconis = freedmanDiaconis;
exports.thresholdScott = scott;
exports.thresholdSturges = sturges;
exports.max = max;
exports.mean = mean;
exports.median = median;
exports.merge = merge;
exports.min = min;
exports.pairs = pairs;
exports.permute = permute;
exports.quantile = threshold;
exports.range = range;
exports.scan = scan;
exports.shuffle = shuffle;
exports.sum = sum;
exports.ticks = ticks;
exports.tickStep = tickStep;
exports.transpose = transpose;
exports.variance = variance;
exports.zip = zip;
exports.entries = entries;
exports.keys = keys;
exports.values = values;
exports.map = map$1;
exports.set = set;
exports.nest = nest;
exports.randomUniform = uniform;
exports.randomNormal = normal;
exports.randomLogNormal = logNormal;
exports.randomBates = bates;
exports.randomIrwinHall = irwinHall;
exports.randomExponential = exponential;
exports.easeLinear = linear;
exports.easeQuad = quadInOut;
exports.easeQuadIn = quadIn;
exports.easeQuadOut = quadOut;
exports.easeQuadInOut = quadInOut;
exports.easeCubic = easeCubicInOut;
exports.easeCubicIn = cubicIn;
exports.easeCubicOut = cubicOut;
exports.easeCubicInOut = easeCubicInOut;
exports.easePoly = polyInOut;
exports.easePolyIn = polyIn;
exports.easePolyOut = polyOut;
exports.easePolyInOut = polyInOut;
exports.easeSin = sinInOut;
exports.easeSinIn = sinIn;
exports.easeSinOut = sinOut;
exports.easeSinInOut = sinInOut;
exports.easeExp = expInOut;
exports.easeExpIn = expIn;
exports.easeExpOut = expOut;
exports.easeExpInOut = expInOut;
exports.easeCircle = circleInOut;
exports.easeCircleIn = circleIn;
exports.easeCircleOut = circleOut;
exports.easeCircleInOut = circleInOut;
exports.easeBounce = bounceOut;
exports.easeBounceIn = bounceIn;
exports.easeBounceOut = bounceOut;
exports.easeBounceInOut = bounceInOut;
exports.easeBack = backInOut;
exports.easeBackIn = backIn;
exports.easeBackOut = backOut;
exports.easeBackInOut = backInOut;
exports.easeElastic = elasticOut;
exports.easeElasticIn = elasticIn;
exports.easeElasticOut = elasticOut;
exports.easeElasticInOut = elasticInOut;
exports.polygonArea = area;
exports.polygonCentroid = centroid;
exports.polygonHull = hull;
exports.polygonContains = contains;
exports.polygonLength = length$1;
exports.path = path;
exports.quadtree = quadtree;
exports.queue = queue;
exports.arc = arc;
exports.area = area$1;
exports.line = line;
exports.pie = pie;
exports.radialArea = radialArea;
exports.radialLine = radialLine$1;
exports.symbol = symbol;
exports.symbols = symbols;
exports.symbolCircle = circle;
exports.symbolCross = cross$1;
exports.symbolDiamond = diamond;
exports.symbolSquare = square;
exports.symbolStar = star;
exports.symbolTriangle = triangle;
exports.symbolWye = wye;
exports.curveBasisClosed = basisClosed;
exports.curveBasisOpen = basisOpen;
exports.curveBasis = basis;
exports.curveBundle = bundle;
exports.curveCardinalClosed = cardinalClosed;
exports.curveCardinalOpen = cardinalOpen;
exports.curveCardinal = cardinal;
exports.curveCatmullRomClosed = catmullRomClosed;
exports.curveCatmullRomOpen = catmullRomOpen;
exports.curveCatmullRom = catmullRom;
exports.curveLinearClosed = linearClosed;
exports.curveLinear = curveLinear;
exports.curveMonotoneX = monotoneX;
exports.curveMonotoneY = monotoneY;
exports.curveNatural = natural;
exports.curveStep = step;
exports.curveStepAfter = stepAfter;
exports.curveStepBefore = stepBefore;
exports.stack = stack;
exports.stackOffsetExpand = expand;
exports.stackOffsetNone = none;
exports.stackOffsetSilhouette = silhouette;
exports.stackOffsetWiggle = wiggle;
exports.stackOrderAscending = ascending$1;
exports.stackOrderDescending = descending$2;
exports.stackOrderInsideOut = insideOut;
exports.stackOrderNone = none$1;
exports.stackOrderReverse = reverse;
exports.color = color;
exports.rgb = colorRgb;
exports.hsl = colorHsl;
exports.lab = lab;
exports.hcl = colorHcl;
exports.cubehelix = cubehelix;
exports.interpolate = interpolate;
exports.interpolateArray = array$1;
exports.interpolateDate = date;
exports.interpolateNumber = interpolateNumber;
exports.interpolateObject = object;
exports.interpolateRound = interpolateRound;
exports.interpolateString = interpolateString;
exports.interpolateTransformCss = interpolateTransform$1;
exports.interpolateTransformSvg = interpolateTransform$2;
exports.interpolateZoom = interpolateZoom;
exports.interpolateRgb = interpolateRgb;
exports.interpolateRgbBasis = rgbBasis;
exports.interpolateRgbBasisClosed = rgbBasisClosed;
exports.interpolateHsl = hsl$1;
exports.interpolateHslLong = hslLong;
exports.interpolateLab = lab$1;
exports.interpolateHcl = hcl$1;
exports.interpolateHclLong = hclLong;
exports.interpolateCubehelix = cubehelix$2;
exports.interpolateCubehelixLong = interpolateCubehelixLong;
exports.interpolateBasis = basis$2;
exports.interpolateBasisClosed = basisClosed$1;
exports.quantize = quantize;
exports.dispatch = dispatch;
exports.dsvFormat = dsv;
exports.csvParse = csvParse;
exports.csvParseRows = csvParseRows;
exports.csvFormat = csvFormat;
exports.csvFormatRows = csvFormatRows;
exports.tsvParse = tsvParse;
exports.tsvParseRows = tsvParseRows;
exports.tsvFormat = tsvFormat;
exports.tsvFormatRows = tsvFormatRows;
exports.request = request;
exports.html = html;
exports.json = json;
exports.text = text;
exports.xml = xml;
exports.csv = csv$1;
exports.tsv = tsv$1;
exports.now = now;
exports.timer = timer;
exports.timerFlush = timerFlush;
exports.timeout = timeout$1;
exports.interval = interval$1;
exports.timeInterval = newInterval;
exports.timeMillisecond = millisecond;
exports.timeMilliseconds = milliseconds;
exports.timeSecond = second;
exports.timeSeconds = seconds;
exports.timeMinute = minute;
exports.timeMinutes = minutes;
exports.timeHour = hour;
exports.timeHours = hours;
exports.timeDay = day;
exports.timeDays = days;
exports.timeWeek = timeWeek;
exports.timeWeeks = sundays;
exports.timeSunday = timeWeek;
exports.timeSundays = sundays;
exports.timeMonday = timeMonday;
exports.timeMondays = mondays;
exports.timeTuesday = tuesday;
exports.timeTuesdays = tuesdays;
exports.timeWednesday = wednesday;
exports.timeWednesdays = wednesdays;
exports.timeThursday = thursday;
exports.timeThursdays = thursdays;
exports.timeFriday = friday;
exports.timeFridays = fridays;
exports.timeSaturday = saturday;
exports.timeSaturdays = saturdays;
exports.timeMonth = month;
exports.timeMonths = months;
exports.timeYear = year;
exports.timeYears = years;
exports.utcMillisecond = millisecond;
exports.utcMilliseconds = milliseconds;
exports.utcSecond = second;
exports.utcSeconds = seconds;
exports.utcMinute = utcMinute;
exports.utcMinutes = utcMinutes;
exports.utcHour = utcHour;
exports.utcHours = utcHours;
exports.utcDay = utcDay;
exports.utcDays = utcDays;
exports.utcWeek = utcWeek;
exports.utcWeeks = utcSundays;
exports.utcSunday = utcWeek;
exports.utcSundays = utcSundays;
exports.utcMonday = utcMonday;
exports.utcMondays = utcMondays;
exports.utcTuesday = utcTuesday;
exports.utcTuesdays = utcTuesdays;
exports.utcWednesday = utcWednesday;
exports.utcWednesdays = utcWednesdays;
exports.utcThursday = utcThursday;
exports.utcThursdays = utcThursdays;
exports.utcFriday = utcFriday;
exports.utcFridays = utcFridays;
exports.utcSaturday = utcSaturday;
exports.utcSaturdays = utcSaturdays;
exports.utcMonth = utcMonth;
exports.utcMonths = utcMonths;
exports.utcYear = utcYear;
exports.utcYears = utcYears;
exports.formatLocale = formatLocale;
exports.formatDefaultLocale = defaultLocale;
exports.formatSpecifier = formatSpecifier;
exports.precisionFixed = precisionFixed;
exports.precisionPrefix = precisionPrefix;
exports.precisionRound = precisionRound;
exports.isoFormat = formatIso;
exports.isoParse = parseIso;
exports.timeFormatLocale = formatLocale$1;
exports.timeFormatDefaultLocale = defaultLocale$1;
exports.scaleBand = band;
exports.scalePoint = point$4;
exports.scaleIdentity = identity$4;
exports.scaleLinear = linear$2;
exports.scaleLog = log;
exports.scaleOrdinal = ordinal;
exports.scaleImplicit = implicit;
exports.scalePow = pow;
exports.scaleSqrt = sqrt;
exports.scaleQuantile = quantile;
exports.scaleQuantize = quantize$1;
exports.scaleThreshold = threshold$1;
exports.scaleTime = time;
exports.scaleUtc = utcTime;
exports.schemeCategory10 = category10;
exports.schemeCategory20b = category20b;
exports.schemeCategory20c = category20c;
exports.schemeCategory20 = category20;
exports.scaleSequential = sequential;
exports.interpolateCubehelixDefault = cubehelix$3;
exports.interpolateRainbow = rainbow$1;
exports.interpolateWarm = warm;
exports.interpolateCool = cool;
exports.interpolateViridis = viridis;
exports.interpolateMagma = magma;
exports.interpolateInferno = inferno;
exports.interpolatePlasma = plasma;
exports.creator = creator;
exports.customEvent = customEvent;
exports.local = local;
exports.matcher = matcher$1;
exports.mouse = mouse;
exports.namespace = namespace;
exports.namespaces = namespaces;
exports.select = select;
exports.selectAll = selectAll;
exports.selection = selection;
exports.selector = selector;
exports.selectorAll = selectorAll;
exports.touch = touch;
exports.touches = touches;
exports.window = window;
exports.active = active;
exports.interrupt = interrupt;
exports.transition = transition;
exports.axisTop = axisTop;
exports.axisRight = axisRight;
exports.axisBottom = axisBottom;
exports.axisLeft = axisLeft;
exports.cluster = cluster;
exports.hierarchy = hierarchy;
exports.pack = index;
exports.packSiblings = siblings;
exports.packEnclose = enclose;
exports.partition = partition;
exports.stratify = stratify;
exports.tree = tree;
exports.treemap = index$1;
exports.treemapBinary = binary;
exports.treemapDice = treemapDice;
exports.treemapSlice = treemapSlice;
exports.treemapSliceDice = sliceDice;
exports.treemapSquarify = squarify;
exports.treemapResquarify = resquarify;
exports.forceCenter = center$1;
exports.forceCollide = collide;
exports.forceLink = link;
exports.forceManyBody = manyBody;
exports.forceSimulation = simulation;
exports.forceX = x$3;
exports.forceY = y$3;
exports.drag = drag;
exports.dragDisable = dragDisable;
exports.dragEnable = dragEnable;
exports.voronoi = voronoi;
exports.zoom = zoom;
exports.zoomIdentity = identity$6;
exports.zoomTransform = transform;
exports.brush = brush;
exports.brushX = brushX;
exports.brushY = brushY;
exports.brushSelection = brushSelection;
exports.chord = chord;
exports.ribbon = ribbon;
exports.geoAlbers = albers;
exports.geoAlbersUsa = albersUsa;
exports.geoArea = area$2;
exports.geoAzimuthalEqualArea = azimuthalEqualArea;
exports.geoAzimuthalEqualAreaRaw = azimuthalEqualAreaRaw;
exports.geoAzimuthalEquidistant = azimuthalEquidistant;
exports.geoAzimuthalEquidistantRaw = azimuthalEquidistantRaw;
exports.geoBounds = bounds;
exports.geoCentroid = centroid$1;
exports.geoCircle = circle$1;
exports.geoClipExtent = extent$1;
exports.geoConicConformal = conicConformal;
exports.geoConicConformalRaw = conicConformalRaw;
exports.geoConicEqualArea = conicEqualArea;
exports.geoConicEqualAreaRaw = conicEqualAreaRaw;
exports.geoConicEquidistant = conicEquidistant;
exports.geoConicEquidistantRaw = conicEquidistantRaw;
exports.geoDistance = distance;
exports.geoEquirectangular = equirectangular;
exports.geoEquirectangularRaw = equirectangularRaw;
exports.geoGnomonic = gnomonic;
exports.geoGnomonicRaw = gnomonicRaw;
exports.geoGraticule = graticule;
exports.geoInterpolate = interpolate$2;
exports.geoLength = length$2;
exports.geoMercator = mercator;
exports.geoMercatorRaw = mercatorRaw;
exports.geoOrthographic = orthographic;
exports.geoOrthographicRaw = orthographicRaw;
exports.geoPath = index$3;
exports.geoProjection = projection;
exports.geoProjectionMutator = projectionMutator;
exports.geoRotation = rotation;
exports.geoStereographic = stereographic;
exports.geoStereographicRaw = stereographicRaw;
exports.geoStream = stream;
exports.geoTransform = transform$1;
exports.geoTransverseMercator = transverseMercator;
exports.geoTransverseMercatorRaw = transverseMercatorRaw;
Object.defineProperty(exports, '__esModule', { value: true });
}));
},{}],7:[function(require,module,exports){
(function (global){
'use strict';
var width = 256;// each RC4 output is 0 <= x < 256
var chunks = 6;// at least six RC4 outputs for each double
var digits = 52;// there are 52 significant digits in a double
var pool = [];// pool: entropy pool starts empty
var GLOBAL = typeof global === 'undefined' ? window : global;
//
// The following constants are related to IEEE 754 limits.
//
var startdenom = Math.pow(width, chunks),
significance = Math.pow(2, digits),
overflow = significance * 2,
mask = width - 1;
var oldRandom = Math.random;
//
// seedrandom()
// This is the seedrandom function described above.
//
module.exports = function(seed, options) {
if (options && options.global === true) {
options.global = false;
Math.random = module.exports(seed, options);
options.global = true;
return Math.random;
}
var use_entropy = (options && options.entropy) || false;
var key = [];
// Flatten the seed string or build one from local entropy if needed.
var shortseed = mixkey(flatten(
use_entropy ? [seed, tostring(pool)] :
0 in arguments ? seed : autoseed(), 3), key);
// Use the seed to initialize an ARC4 generator.
var arc4 = new ARC4(key);
// Mix the randomness into accumulated entropy.
mixkey(tostring(arc4.S), pool);
// Override Math.random
// This function returns a random double in [0, 1) that contains
// randomness in every bit of the mantissa of the IEEE 754 value.
return function() { // Closure to return a random double:
var n = arc4.g(chunks), // Start with a numerator n < 2 ^ 48
d = startdenom, // and denominator d = 2 ^ 48.
x = 0; // and no 'extra last byte'.
while (n < significance) { // Fill up all significant digits by
n = (n + x) * width; // shifting numerator and
d *= width; // denominator and generating a
x = arc4.g(1); // new least-significant-byte.
}
while (n >= overflow) { // To avoid rounding up, before adding
n /= 2; // last byte, shift everything
d /= 2; // right using integer Math until
x >>>= 1; // we have exactly the desired bits.
}
return (n + x) / d; // Form the number within [0, 1).
};
};
module.exports.resetGlobal = function () {
Math.random = oldRandom;
};
//
// ARC4
//
// An ARC4 implementation. The constructor takes a key in the form of
// an array of at most (width) integers that should be 0 <= x < (width).
//
// The g(count) method returns a pseudorandom integer that concatenates
// the next (count) outputs from ARC4. Its return value is a number x
// that is in the range 0 <= x < (width ^ count).
//
/** @constructor */
function ARC4(key) {
var t, keylen = key.length,
me = this, i = 0, j = me.i = me.j = 0, s = me.S = [];
// The empty key [] is treated as [0].
if (!keylen) { key = [keylen++]; }
// Set up S using the standard key scheduling algorithm.
while (i < width) {
s[i] = i++;
}
for (i = 0; i < width; i++) {
s[i] = s[j = mask & (j + key[i % keylen] + (t = s[i]))];
s[j] = t;
}
// The "g" method returns the next (count) outputs as one number.
(me.g = function(count) {
// Using instance members instead of closure state nearly doubles speed.
var t, r = 0,
i = me.i, j = me.j, s = me.S;
while (count--) {
t = s[i = mask & (i + 1)];
r = r * width + s[mask & ((s[i] = s[j = mask & (j + t)]) + (s[j] = t))];
}
me.i = i; me.j = j;
return r;
// For robust unpredictability discard an initial batch of values.
// See http://www.rsa.com/rsalabs/node.asp?id=2009
})(width);
}
//
// flatten()
// Converts an object tree to nested arrays of strings.
//
function flatten(obj, depth) {
var result = [], typ = (typeof obj)[0], prop;
if (depth && typ == 'o') {
for (prop in obj) {
try { result.push(flatten(obj[prop], depth - 1)); } catch (e) {}
}
}
return (result.length ? result : typ == 's' ? obj : obj + '\0');
}
//
// mixkey()
// Mixes a string seed into a key that is an array of integers, and
// returns a shortened string seed that is equivalent to the result key.
//
function mixkey(seed, key) {
var stringseed = seed + '', smear, j = 0;
while (j < stringseed.length) {
key[mask & j] =
mask & ((smear ^= key[mask & j] * 19) + stringseed.charCodeAt(j++));
}
return tostring(key);
}
//
// autoseed()
// Returns an object for autoseeding, using window.crypto if available.
//
/** @param {Uint8Array=} seed */
function autoseed(seed) {
try {
GLOBAL.crypto.getRandomValues(seed = new Uint8Array(width));
return tostring(seed);
} catch (e) {
return [+new Date, GLOBAL, GLOBAL.navigator && GLOBAL.navigator.plugins,
GLOBAL.screen, tostring(pool)];
}
}
//
// tostring()
// Converts an array of charcodes to a string
//
function tostring(a) {
return String.fromCharCode.apply(0, a);
}
//
// When seedrandom.js is loaded, we immediately mix a few bits
// from the built-in RNG into the entropy pool. Because we do
// not want to intefere with determinstic PRNG state later,
// seedrandom will not call Math.random on its own again after
// initialization.
//
mixkey(Math.random(), pool);
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}]},{},[1]);