app-js/d3/network.js
import * as d3 from "d3";
import {event as d3CurrentEvent} from 'd3';
function drawGraph(orgName) {
var name = orgName
// Remove any existing graph
d3.select("#graph-container").select("svg").remove();
console.log("drawGraph Called");
// var example_file = "../example.json";
var endpoint = "../organizations/index?name="+name;
// because we use this on <root>/graph we need to go one directory up
// to find the /public JSON file at <root>.
var w = window.innerWidth;
var h = window.innerHeight;
var keyc, keys, keyt, keyr, keyx, keyd, keyl, keym, keyh, key1, key2, key3, key0;
keyc = keys = keyt = keyr = keyx = keyd = keyl = keym = keyh = key1 = key2 = key3 = key0 = true;
var focus_node = null, highlight_node = null;
var text_center = false;
var outline = false;
var min_score = 0;
var max_score = 1;
var color = d3.scale.linear()
.domain([min_score, (min_score+max_score)/2, max_score])
.range(["lime", "yellow", "#28a745"]);
var highlight_color = "#00ff99";
var highlight_trans = 0.1;
var size = d3.scale.pow().exponent(1)
.domain([1,100])
.range([8,24]);
var force = d3.layout.force()
.linkDistance(200)
.charge(-500)
.size([w,h]);
var default_node_color = "#fff";
//var default_node_color = "rgb(3,190,100)";
var default_link_color = "#fff";
var nominal_base_node_size = 18;
var nominal_text_size = 20;
var max_text_size = 24;
var nominal_stroke = 1.5;
var max_stroke = 4.5;
var max_base_node_size = 36;
var min_zoom = 0.1;
var max_zoom = 7;
var svg = d3.select("#graph-container").append("svg");
var zoom = d3.behavior.zoom().scaleExtent([min_zoom,max_zoom])
var g = svg.append("g");
svg.style("cursor","move");
d3.json(endpoint, function(error, graph) {
var linkedByIndex = {};
graph.links.forEach(function(d) {
linkedByIndex[d.source + "," + d.target] = true;
});
function isConnected(a, b) {
return (
linkedByIndex[a.index + "," + b.index] ||
linkedByIndex[b.index + "," + a.index] ||
a.index == b.index
);
};
function hasConnections(a) {
for (var property in linkedByIndex) {
s = property.split(",");
if ((s[0] == a.index || s[1] == a.index) && linkedByIndex[property]) {
return true;
}
}
return false;
}
force.nodes(graph.nodes)
.links(graph.links)
.start();
var link = g.selectAll(".link")
.data(graph.links)
.enter().append("line")
.attr("class", "link")
.style("stroke-width",nominal_stroke)
.style("stroke", function(d) {
if (isNumber(d.score) && d.score>=0) return color(d.score);
else return default_link_color;
});
var node = g.selectAll(".node")
.data(graph.nodes)
.enter().append("g")
.attr("class", "node")
.call(force.drag);
node.on("dblclick.zoom", function(d) { d3CurrentEvent.stopPropagation();
var dcx = (window.innerWidth/2-d.x*zoom.scale());
var dcy = (window.innerHeight/2-d.y*zoom.scale());
zoom.translate([dcx,dcy]);
g.attr("transform", "translate("+ dcx + "," + dcy + ")scale(" + zoom.scale() + ")");
});
var tocolor = "fill";
var towhite = "stroke";
if (outline) {
tocolor = "stroke"
towhite = "fill"
}
var circle = node.append("path")
.attr("d", d3.svg.symbol()
.size(function(d) { return Math.PI*Math.pow(size(d.size)||nominal_base_node_size,2); })
.type(function(d) { return d.type; }))
.style(tocolor, function(d) {
if (isNumber(d.score) && d.score>=0) {
return color(d.score);
} else {
return default_node_color;
}
})
//.attr("r", function(d) { return size(d.size)||nominal_base_node_size; })
.style("stroke-width", nominal_stroke)
.style(towhite, "white");
var text = g.selectAll(".text")
.data(graph.nodes)
.enter().append("text")
.attr("dy", ".35em")
.attr("fill", "#bbff99")
.style("font-size", nominal_text_size + "px");
if (text_center) {
text.text(function(d) { return d.id; }).style("text-anchor", "middle");
} else {
text.attr("dx", function(d) {return (size(d.size)||nominal_base_node_size);})
.text(function(d) { return '\u2002'+d.id; });
}
node.on("mouseover", function(d) {
set_highlight(d);
})
.on("mousedown", function(d) {
d3CurrentEvent.stopPropagation();
focus_node = d;
set_focus(d)
if (highlight_node === null) {
set_highlight(d)
}
}).on("mouseout", function(d) {
exit_highlight();
});
d3.select(window).on("mouseup", function() {
if (focus_node!==null) {
focus_node = null;
if (highlight_trans<1) {
circle.style("opacity", 1);
text.style("opacity", 1);
link.style("opacity", 1);
}
}
if (highlight_node === null) {
exit_highlight();
}
});
function exit_highlight() {
highlight_node = null;
if (focus_node === null) {
svg.style("cursor","move");
if (highlight_color != "white") {
circle.style(towhite, "white");
text.style("font-weight", "normal");
link.style(
"stroke",
function(o) {
return (isNumber(o.score) && o.score >= 0) ? color(o.score) : default_link_color
}
);
}
}
}
function set_focus(d) {
if (highlight_trans < 1) {
circle.style("opacity", function(o) {
return isConnected(d, o) ? 1 : highlight_trans;
});
text.style("opacity", function(o) {
return isConnected(d, o) ? 1 : highlight_trans;
});
link.style("opacity", function(o) {
return o.source.index == d.index || o.target.index == d.index ? 1 : highlight_trans;
});
}
}
function set_highlight(d) {
svg.style("cursor","pointer");
if (focus_node!==null) d = focus_node;
highlight_node = d;
if (highlight_color!="white") {
circle.style(towhite, function(o) {
return isConnected(d, o) ? highlight_color : "white";
});
text.style("font-weight", function(o) {
return isConnected(d, o) ? "bold" : "normal";
});
link.style("stroke", function(o) {
return (
o.source.index == d.index ||
o.target.index == d.index ? highlight_color : ((isNumber(o.score) && o.score>=0) ? color(o.score) : default_link_color)
);
});
}
}
zoom.on("zoom", function() {
var stroke = nominal_stroke;
if (nominal_stroke*zoom.scale() > max_stroke) {
stroke = max_stroke/zoom.scale();
}
link.style("stroke-width",stroke);
circle.style("stroke-width",stroke);
var base_radius = nominal_base_node_size;
if (nominal_base_node_size*zoom.scale() > max_base_node_size) {
base_radius = max_base_node_size/zoom.scale();
}
circle.attr("d", d3.svg.symbol()
.size(function(d) { return Math.PI*Math.pow(size(d.size)*base_radius/nominal_base_node_size||base_radius,2); })
.type(function(d) { return d.type; }));
//circle.attr("r", function(d) { return (size(d.size)*base_radius/nominal_base_node_size||base_radius); })
if (!text_center) {
text.attr("dx", function(d) { return (size(d.size)*base_radius/nominal_base_node_size||base_radius); });
}
var text_size = nominal_text_size;
if (nominal_text_size*zoom.scale()>max_text_size) {
text_size = max_text_size/zoom.scale();
}
text.style("font-size",text_size + "px");
g.attr("transform", "translate(" + d3CurrentEvent.translate + ")scale(" + d3CurrentEvent.scale + ")");
});
svg.call(zoom);
resize();
//window.focus();
d3.select(window).on("resize", resize).on("keydown", keydown);
force.on("tick", function() {
node.attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; });
text.attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; });
link.attr("x1", function(d) { return d.source.x; })
.attr("y1", function(d) { return d.source.y; })
.attr("x2", function(d) { return d.target.x; })
.attr("y2", function(d) { return d.target.y; });
node.attr("cx", function(d) { return d.x; })
.attr("cy", function(d) { return d.y; });
});
function resize() {
var width = window.innerWidth, height = window.innerHeight;
svg.attr("width", width).attr("height", height);
force.size([force.size()[0]+(width-w)/zoom.scale(),force.size()[1]+(height-h)/zoom.scale()]).resume();
w = width;
h = height;
}
function keydown() {
if (d3CurrentEvent.keyCode==32) {
force.stop();
} else if (d3CurrentEvent.keyCode>=48 && d3CurrentEvent.keyCode<=90 && !d3CurrentEvent.ctrlKey && !d3CurrentEvent.altKey && !d3CurrentEvent.metaKey) {
switch (String.fromCharCode(d3CurrentEvent.keyCode)) {
case "C": keyc = !keyc; break;
case "S": keys = !keys; break;
case "T": keyt = !keyt; break;
case "R": keyr = !keyr; break;
case "X": keyx = !keyx; break;
case "D": keyd = !keyd; break;
case "L": keyl = !keyl; break;
case "M": keym = !keym; break;
case "H": keyh = !keyh; break;
case "1": key1 = !key1; break;
case "2": key2 = !key2; break;
case "3": key3 = !key3; break;
case "0": key0 = !key0; break;
}
link.style("display", function(d) {
var flag = (
vis_by_type(d.source.type) &&
vis_by_type(d.target.type) &&
vis_by_node_score(d.source.score) &&
vis_by_node_score(d.target.score) &&
vis_by_link_score(d.score)
);
linkedByIndex[d.source.index + "," + d.target.index] = flag;
return flag ? "inline" : "none";
});
node.style("display", function(d) {
return key0 || hasConnections(d) && vis_by_type(d.type) && vis_by_node_score(d.score) ? "inline" : "none";
});
text.style("display", function(d) {
return (key0||hasConnections(d))&&vis_by_type(d.type)&&vis_by_node_score(d.score)?"inline":"none";
});
if (highlight_node !== null) {
if ((key0||hasConnections(highlight_node))&&vis_by_type(highlight_node.type)&&vis_by_node_score(highlight_node.score)) {
if (focus_node!==null) {
set_focus(focus_node);
}
set_highlight(highlight_node);
} else {exit_highlight();}
}
}
}
});
function vis_by_type(type) {
switch (type) {
case "square": return keyc;
case "circle": return keys;
case "triangle-up": return keyt;
case "diamond": return keyr;
case "cross": return keyx;
case "triangle-down": return keyd;
default: return true;
}
}
function vis_by_node_score(score) {
if (isNumber(score)) {
if (score>=0.666) return keyh;
else if (score>=0.333) return keym;
else if (score>=0) return keyl;
}
return true;
}
function vis_by_link_score(score) {
if (isNumber(score)) {
if (score>=0.666) return key3;
else if (score>=0.333) return key2;
else if (score>=0) return key1;
}
return true;
}
function isNumber(n) {
return !isNaN(parseFloat(n)) && isFinite(n);
}
}
export { drawGraph };
//
// // Add listener to button
// $(document).on('turbolinks:load', function() {
// $('#submit-name').click(drawGraph)
// });