D3 Examples - TP4 Data viz UCBL 2017

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<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://d3js.org/d3.v4.min.js"></script>
  <style>
    body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
  </style>
</head>
​
<body>
  <script>
    
    var grippeDataLink = "https://lyondataviz.github.io/teaching/lyon1-m2/2017/data/GrippeFrance2014.csv";
        var width = 700,
          height = 580;
​
        var svg = d3.select( "body" )
        .append( "svg" )
          .attr( "width", width )
          .attr( "height", height );
​
    var projection = d3.geoConicConformal().center([2.454071, 46.279229]).scale(2800);
    //var projection = d3.geoAlbersUsa() // d3.geo.albersUsa avec d3 version 3
    //          .translate([width/2, height/2])
​
    var path = d3.geoPath() // d3.geo.path avec d3 version 3
                 .projection(projection);
    
    //c = d3.scaleOrdinal(d3.schemeCategory10);
    // On definit une echelle de couleur
   var color = d3.scaleQuantize()  
         .range(["rgb(237,248,233)", "rgb(186,228,179)",
         "rgb(116,196,118)", "rgb(49,163,84)", "rgb(0,109,44)"]);
    color.domain([0, 2000]);
    
    d3.csv("grippe.csv", function(data) {
    
      console.log(data);
      var sum = 0;
      for (var i = 0; i < data.length; i++) {
          sum += data[i]["somme2014"];
        }
​
      d3.json("france.json", function(json) {
        //On fusionne les donnees avec le GeoJSON des regions
        for (var i = 0; i < data.length; i++) {
          var total = data[i]["somme2014"];
          //console.log(data);
          var ratio = (total / sum) * 2000 * 100
              //(+data[i]["01/06/14"] * 2000 * 100) / total;
          //console.log(ratio);
          json.features[i].properties["value"] = ratio;
        
        }
        svg.selectAll("path").data(json.features).enter()
          .append("path")
          .style("fill", function(d) { return color(d.properties.value); }) 
            .attr("d", path);
      });
  });
  </script>
</body>
​
    