D3 Examples - TP5_RaoFernandes

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<!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; }
    .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;
    }
    
    .slider {
      position: relative;
      top: 20px;
      left: 100px;
    }
​
    .slider-tray {
      position: absolute;
      width: 100%;
      height: 6px;
      border: solid 1px #ccc;
      border-top-color: #aaa;
      border-radius: 4px;
      background-color: #f0f0f0;
      box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.08);
    }
​
    .slider-handle {
      position: absolute;
      top: 3px;
    }
​
    .slider-handle-icon {
      width: 14px;
      height: 14px;
      border: solid 1px #aaa;
      position: absolute;
      border-radius: 10px;
      background-color: #fff;
      box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
      top: -7px;
      left: -7px;
    }
    .slider_label{
      position: relative;
      top : 15px;
      left : 530px;
    }
  </style>
</head>
​
<body>
  <div class="slider"></div>
  <div class="slider_label">week</div>
    <script src="https://d3js.org/queue.v1.min.js"></script>
  <script>
    var week  = 1;
    var values = [];
    var values_months = [];
    
    var _json = {};
    var nb_weeks = 0;
    var max_values = {};
    var max = 0;
    var week_names = [];
        var width = 700,
          height = 580;
    
    var width_slider = 400;
    
    var color = d3.scale.quantize()  
    .range(["rgb(237,248,233)",
            "rgb(186,228,179)",
            "rgb(116,196,118)",
            "rgb(49,163,84)",
            "rgb(0,109,44)"]);
    
    
    var scale_slider = d3.scale.linear()
    .domain([0, 1])
    .range([0, width_slider])
    .clamp(true);
​
    var dispatch = d3.dispatch("sliderChange");
​
    var slider = d3.select(".slider")
        .style("width", width_slider + "px");
​
    var sliderTray = slider.append("div")
        .attr("class", "slider-tray");
​
    var sliderHandle = slider.append("div")
        .attr("class", "slider-handle");
​
    sliderHandle.append("div")
        .attr("class", "slider-handle-icon")
​
    slider.call(d3.behavior.drag()
        .on("dragstart", function() {
          dispatch.sliderChange(scale_slider.invert(d3.mouse(sliderTray.node())[0]));
          d3.event.sourceEvent.preventDefault();
      
            week = Math.trunc(scale_slider.invert(d3.mouse(sliderTray.node())[0]));
            console.log(week)       
      
            update();
        })
        .on("drag", function() {
          dispatch.sliderChange(scale_slider.invert(d3.mouse(sliderTray.node())[0]));
            
            week = Math.trunc(scale_slider.invert(d3.mouse(sliderTray.node())[0]));
            
            update();
            }));
​
    dispatch.on("sliderChange.slider", function(value) {
      sliderHandle.style("left", scale_slider(value) + "px")
    });
    
    function processData(error, /*results*/ json, data){
      
      for(wn = 0; wn < Object.keys(data[0]).length; wn++){
          if(Object.keys(data[0])[wn].match("[0-9]*/[0-9]*/[0-9]*")){ 
            week_names.push(Object.keys(data[0])[wn]);
            nb_weeks += 1;
          }
        }
      scale_slider.domain([0, nb_weeks - 0.1]);
      for (var i = 0; i < data.length; i++) {
        var values_temp = []
        data_w = d3.values(data[i]);
        for(var w = 1; w < nb_weeks + 1; ++w){
          if(data_w[w]){
            values_temp.push(data_w[w]);
            if(parseInt(data_w[w]) > max) max = parseInt(data_w[w]); 
            if(max_values[w]){
              if(max_values[w] < parseInt(data_w[w])) max_values[w] = parseInt(data_w[w]);
            }
            else{
              max_values[w] = parseInt(data_w[w]);
            }
          }
        }
​
        var data_reg = data[i].regions; // ou data[i].region si grippe2014
        for (var j = 0; j < json.features.length; j++){
          var json_reg = json.features[j].properties.nom;
          if (data_reg == json_reg) {
            //On injecte la valeur de l'Etat dans le json
            json.features[j].properties.value = values_temp;
            break;
          }
        }
      }
      
      
      
      d3.select(".legend2").text(max);
      
      svg.selectAll("path")
        .data(json.features)
        .enter()
        .append("path")
        .attr("d", path)
        .attr("stroke", "black")
        .style("fill", function(d) {
          //on prend la valeur recupere plus haut
            if(d.properties.value){
            var value = d.properties.value[week];
            return color(value);
          } else {
            // si pas de valeur alors en gris
            return "#ccc";
          }
        })
        .on('mousemove', function(d) {
          var mouse = d3.mouse(svg.node()).map(function(d) {
            return parseInt(d);
          });
          d3.select(this)
            .transition()
            .duration(50)
            .attr("stroke", "black")
            .attr("stroke-width", 3);
​
          tooltip.classed('hidden', false)
            .attr('style', 'left:' + (mouse[0] + 15) +
                  'px; top:' + (mouse[1] - 35) + 'px')
            .html("Nom : " + d.properties.nom + "</br>Data : " + (d.properties.value ? String(d.properties.value[week]) : "undefined"));
        })
        .on('mouseout', function() {
        d3.select(this)
          .transition()
          .duration(300)
          .attr("stroke", "black")
          .attr("stroke-width", 1)
        tooltip.classed('hidden', true);
      });
      
      _json = json;
      
      update();
    }
    
    queue()   // permet de charger les fichiers de manière asynchrone
      .defer(d3.json, "regions.geojson")
      //.defer(d3.csv, "GrippeFrance2014.csv")
        .defer(d3.csv, "GrippeFrance2003-15.csv")
      .await(processData); 
​
    function update(){
      color.domain([0, max/4]);
      
      d3.select(".slider_label")
        .text(week_names[week]);
      
      carte = svg.selectAll("path")
                .data(_json.features);
      
      carte.style("fill", function(d) {
          //on prend la valeur recupere plus haut
            if(d.properties.value && d.properties.value[week]){
            var value = d.properties.value[week];
            return color(value);
          } else {
            // si pas de valeur alors en gris
            return "#ccc";
          }
        });
    }
        var svg = d3.select( "body" )
        .append( "svg" )
          .attr( "width", width )
          .attr( "height", height );
    
    var projection = d3.geo.conicConformal()
                .translate([width/2, height/2])
                .center([5, 44.89])
                .scale(3000)
​
    var path = d3.geo.path()
                 .projection(projection);
    
    var tooltip = d3.select('body').append('div')
            .attr('class', 'hidden tooltip');
    
  </script>
</body>
    