Grippe en France en novembre 2014

<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://d3js.org/d3.v3.min.js"></script>
  <style>
    body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
        <style>
          .regions {
              stroke: #fff;
              stroke-width: 1px;
          }
          .regions:hover {
              fill: #666;
          }
          .hidden {
              display: none;
          }
          div.tooltip {
              color: #222;
              background-color: #fff;
              padding: .5em;
              text-shadow: #f5f5f5 0 1px 0;
              border-radius: 2px;
              opacity: 0.9;
              position: absolute;
          }
        </style>
</head>

<body>
  <script>
    var width = 700,
        height = 580;

var svg = d3.select( "body" )
      .append( "svg" )
      .attr( "width", width )
      .attr( "height", height );

var projection = d3.geo.conicConformal().center([2.454071, 46.279229]).scale(3000)
          .translate([width/2, height/2]);

var path = d3.geo.path()
                 .projection(projection);

var length = 100,
    color = d3.scale.linear().domain([1,length])
      .interpolate(d3.interpolateHcl)
      .range([d3.rgb("#FBF2B7"), d3.rgb('#FF0000')]);

var tooltip = d3.select('body').append('div')
                .attr('class', 'hidden tooltip');

d3.csv("GrippeFrance2014.csv", function(data) {

d3.json("regions.json", function(regions) {

var dateMonth = "11/14";

for (var i = 0; i < data.length; i++) {
              data[i]["11/14"]=parseFloat(data[i]["02/11/14"])+parseFloat(data[i]["09/11/14"])+parseFloat(data[i]["16/11/14"])+parseFloat(data[i]["23/11/14"])+parseFloat(data[i]["30/11/14"]);
          }
          //color.domain([0, d3.max(data, function(d) { return parseFloat(d["somme2014"]);})]);
          color.domain([d3.min(data, function(d) { return parseFloat(d["11/14"]);}), d3.max(data, function(d) { return parseFloat(d["11/14"]);})]);

//On fusionne les donnees avec le GeoJSON
          for (var i = 0; i < data.length; i++) {
            for (var j = 0; j < regions.features.length; j++) {
                  //console.log(regions.features[j].properties.nom);
                  //console.log(data[i].region);
                if (regions.features[j].properties.nom === data[i].region){
                  regions.features[j].properties.grippe = data[i];
                }
            }
          }

svg.selectAll("path")
              .data(regions.features)
              .enter()
              .append("path")
              .attr("class", function(d,i){
                  return "regions";
              })
              .attr("d", path)
              .style("fill", function(d) {
                if (d.properties.grippe){
                    var value = parseFloat(d.properties.grippe["11/14"]);
                    return color(value);
                }
              }).on('mousemove', function(d) {
                  var mouse = d3.mouse(svg.node()).map(function(d) {
                      return parseInt(d);
                  });
                  var toDisplay =  d.properties.nom + " : </br>"
                  if (d.properties.grippe)
                    toDisplay+= "Cas de grippe en " + dateMonth + " : " + d.properties.grippe[dateMonth];
                  else
                    toDisplay+="Cas de grippe en " + dateMonth + " : " + "Non défini";

tooltip.classed('hidden', false)
                      .attr('style', 'left:' + (mouse[0] + 15) +
                              'px; top:' + (mouse[1] - 35) + 'px')
                      .html(toDisplay);
              })
              .on('mouseout', function() {
                  tooltip.classed('hidden', true);
              });
        });
    });
  
  </script>
</body>

https://d3js.org/d3.v3.min.js