codeRIT/hackathon_manager

$.fn.initMap = function() {
  if (!this || this.length == 0) {
    return;
  }

  var width = 950,
    height = 600;
  var appsById = d3.map();
  var formatNumber = d3.format(',.0f');
  var path = d3.geo.path().projection(null);
  var radius = d3.scale
    .sqrt()
    .domain([0, 50])
    .range([0, 1]);
  var svg = d3
    .select(this[0])
    .append('svg:svg')
    .attr('width', width)
    .attr('height', height);

  queue()
    .defer(d3.json, '/us.json')
    .defer(d3.tsv, '/manage/dashboard/map_data.tsv', function(d) {
      appsById.set(d.id, +d.apps);
    })
    .await(ready);

  function ready(error, us) {
    if (error) return console.error(error);

    svg
      .append('path')
      .datum(topojson.feature(us, us.objects.nation))
      .attr('class', 'land')
      .attr('d', path);

    svg
      .append('path')
      .datum(
        topojson.mesh(us, us.objects.states, function(a, b) {
          return a !== b;
        })
      )
      .attr('class', 'border border--state')
      .attr('d', path);

    svg
      .append('g')
      .attr('class', 'county')
      .selectAll('path')
      .data(
        topojson.feature(us, us.objects.counties).features.sort(function(a, b) {
          return (appsById.get(b.id) || 0) - (appsById.get(a.id) || 0);
        })
      )
      .enter()
      .append('path')
      .attr('d', path)
      .attr('fill-opacity', function(d) {
        return radius(appsById.get(d.id) || 0);
      })
      .append('title')
      .text(function(d) {
        return d.properties.name + '\nQuestionnaires: ' + formatNumber(appsById.get(d.id) || 0);
      });
  }

  d3.select(self.frameElement).style('height', height + 'px');
};