assets/pie_graphs.js

   1 function PieDrawer(selector) {
   2   this.selector = selector;
   3 };
   4 PieDrawer.width = 150;
   5 PieDrawer.height = 150;
   6 PieDrawer.radius = Math.min(PieDrawer.width, PieDrawer.height) / 2;
   7 PieDrawer.formatPercent = d3.format(".2%");
   8
   9 PieDrawer.color_nos_oignons = "#ffa430";
  10 PieDrawer.color_others = "#57075f";
  11
  12 PieDrawer.arc = d3.svg.arc()
  13     .outerRadius(PieDrawer.radius - 10)
  14     .innerRadius(PieDrawer.radius - 40);
  15
  16 PieDrawer.labelRadius = PieDrawer.radius - 15;
  17
  18 PieDrawer.pie = d3.layout.pie()
  19     .sort(null)
  20     .value(function(d) { return d.frac; });
  21
  22 PieDrawer.onionoo_url = "https://onionoo.torproject.org/details?type=relay&contact=adminsys@nos-oignons.net";
  23
  24 PieDrawer.prototype.getFieldName = undefined;
  25 PieDrawer.prototype.getField = undefined;
  26 PieDrawer.prototype.draw = function() {
  27   var svg = d3.select(this.selector).append("svg")
  28       .style("margin", "auto")
  29       .attr("width", PieDrawer.width)
  30       .attr("height", PieDrawer.height)
  31     .append("g")
  32       .attr("transform", "translate(" + PieDrawer.width / 2 + "," + PieDrawer.height / 2 + ")");
  33
  34   var text = svg.append("text")
  35       .attr("text-anchor", "middle")
  36       .attr("dy", ".35em")
  37       .text(L10n.loading);
  38
  39   var field_getter = this.getField;
  40   d3.json(PieDrawer.onionoo_url + "&fields=fingerprint," + this.getFieldName(), function(error, raw_data) {
  41     var frac_nos_oignons = 0;
  42     raw_data['relays'].forEach(function(d) {
  43       nos_oignons_relays.forEach(function(r) {
  44         if (r.fingerprint == d.fingerprint) {
  45           var value = field_getter(d);
  46           if (value) {
  47             frac_nos_oignons += value;
  48           }
  49         }
  50       });
  51     });
  52     var frac_others = 1 - frac_nos_oignons;
  53
  54     data = [ { name: L10n.nos_oignons, frac: frac_nos_oignons, color: PieDrawer.color_nos_oignons, },
  55              { name: L10n.others,      frac: frac_others,      color: PieDrawer.color_others }, ];
  56
  57     text.text(PieDrawer.formatPercent(data[0].frac));
  58
  59     var g = svg.selectAll(".arc")
  60         .data(PieDrawer.pie(data))
  61       .enter().append("g")
  62         .attr("class", "arc");
  63
  64     g.append("path")
  65         .attr("d", PieDrawer.arc)
  66         .style("fill", function(d) { return d.data.color; });
  67
  68   });
  69 }
  70
  71 function ConsensusPieDrawer(selector) {
  72   this.selector = selector;
  73 };
  74 ConsensusPieDrawer.prototype = new PieDrawer();
  75 ConsensusPieDrawer.prototype.getSelector = function() {
  76   return "#consensus-pie";
  77 };
  78 ConsensusPieDrawer.prototype.getFieldName = function() {
  79   return "consensus_weight_fraction";
  80 };
  81 ConsensusPieDrawer.prototype.getField = function(r) {
  82   return r.consensus_weight_fraction;
  83 };
  84
  85 function ExitPieDrawer(selector) {
  86   this.selector = selector;
  87 };
  88 ExitPieDrawer.prototype = new PieDrawer();
  89 ExitPieDrawer.prototype.getFieldName = function() {
  90   return "exit_probability";
  91 };
  92 ExitPieDrawer.prototype.getField = function(r) {
  93   return r.exit_probability;
  94 };