D3 Examples

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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; }
    div.tooltip {
        color: #222;
        background-color: #fff;
        padding: .5em;
        text-shadow: #f5f5f5 0 1px 0;
        border-radius: 2px;
        opacity: 0.9;
        position: absolute;
    }
    .hidden {
        display: none;
    }
  </style>
</head>
​
<body>
  <div>
  <input id="slider" type="range" value="1" min="0" max="51" step="1" />
  <span id="week">week</span>
    </div>
  <script>
        var width = 700,
          height = 580;
​
        var svg = d3.select( "body" )
        .append( "svg" )
          .attr( "width", width )
          .attr( "height", height )
        .attr("class", "Blues");
    
    var tooltip = d3.select('body').append('div')
            .attr('class', 'tooltip');
​
    var color = d3.scaleQuantize()
        //.range(d3.range(9))
       .range(["rgb(237,248,233)", "rgb(186,228,179)",
        "rgb(116,196,118)", "rgb(49,163,84)", "rgb(0,109,44)"]);
    
    // See formats https://bl.ocks.org/zanarmstrong/raw/05c1e95bf7aa16c4768e/
    var parseDate = d3.timeParse("%d/%m/%y");
    
    var projection = d3.geoConicConformal()
        .center([2.454071, 46.279229])
        .scale(2800);
​
    var path = d3.geoPath() // d3.geo.path avec d3 version 3
                 .projection(projection);
    
    var legend = svg.append('g')
    .attr('transform', 'translate(100, 300)')
    .attr('id', 'legend');
    
        d3.csv("GrippeFrance2014.csv", function(data) {
     //Set input domain for color scale
        color.domain([0,200]);
        /*color.domain([
             d3.min(data, function(d) { return d.value; }),
             d3.max(data, function(d) { return d.value; })
         ])*/
                   
                var weeksArray = Object.keys(data[0]).filter(parseDate)
        //remove region name and sum on the year w/ filter
        
            d3.json("regions.json", function(json) {  
          //On fusionne les donnees avec le GeoJSON des regions
            for (var i = 0; i < data.length; i++) {
                        var dataRegion = data[i].region
            
            var dataValue = parseFloat(data[i].somme2014);
            var  dataValueNov = SommeNov(data[i]);
            var toto = []
            for(k=0; k<weeksArray.length;k++){
              toto.push(data[i][weeksArray[k]])
            }
            
            for(var j = 0; j <json.features.length; j++){//pour chaque region
                var jsonRegion = json.features[j].properties.nom;
                if (dataRegion == jsonRegion) {
                //On injecte la valeur de la region dans le json
                json.features[j].properties.value = toto;
                            break; }
            }
            }//end for i
          console.log(toto)
                color.domain([
                0,
                500
            ])
          drawMap(json,0)
          d3.select(this)
          //console.log(jason)
          d3.select("#slider").on("input", function() {
                                updateViz(weeksArray,+this.value,json);
                        });
          
            legend.selectAll('.colorbar')
                .data(d3.range(5))
                .enter().append('svg:rect')
                .attr('y', function(d) { return d * 20 + 'px'; })
                .attr('height', '20px')
                .attr('width', '20px')
                .attr('x', '0px')
                .attr("class", function(d) { return "q" + d + "-9"; });
            }); //end json
      
      
        }); //end csv
    
    
    
    
 
    
    
    function updateViz(weeksArray,value,json){
            console.log("update "+ weeksArray[value] + " value " + value);
      d3.select('#week').html(weeksArray[value]);
      drawMap(json,value);
    }
    
    
    
    function drawMap(json, currentWeek) {
        carte = svg.selectAll("path")
            .data(json.features);
     
​
     if(currentWeek != 0)
    // code en cas de mise a jour de la carte / de changement de semaine
        carte.attr("class", "update")
        .attr("fill", function(d) {
             var value = d.properties.value ? d.properties.value[currentWeek] : undefined;
                 
                            console.log(d.properties.nom+ " " + value)
                        if (value) {
                    return color(value);
                    } else {
                    // si pas de valeur alors en gris
                    return "#ccc";
                                    }        
              })
      .on('mousemove', HandleMouseOn,currentWeek)
      .on('mouseout', HandleMouseOut)
      
    
​
    // code pour la creation de la carte quand les donnees sont chargees la 1e fois.
      else{
                carte.enter()
                    .append("path")
                    .attr("class", "enter")
            .attr("d", path)
            .attr("class", function(d){return 'Region'+ d.properties.nom;})
                .style("fill", function(d) {
               var value = d.properties.value ? d.properties.value[currentWeek] : undefined
               console.log(d.properties.nom+" " + value)
                    
                    if (value) {
                    return color(value);
                    } else {
                    // si pas de valeur alors en gris
                    return "#ccc";
                                    }           
                })
                        .on('mousemove', HandleMouseOn, currentWeek)
            .on('mouseout', HandleMouseOut)
      }
}
    
    
    
    
    function HandleMouseOn(d, currentWeek){
      console.log(currentWeek +':'+(d.properties.value ? d.properties.value[currentWeek] : undefined))
        tooltip.classed('hiden',false)
            .html(d.properties.nom +"<br/>"+ (d.properties.value ? d.properties.value[currentWeek] : undefined))
            .style("left", (d3.event.pageX) + "px")     
            .style("top", (d3.event.pageY - 28) + "px");
    }
    
    function HandleMouseOut(){
        tooltip.classed('hiden',true);
    }
    
    
    function SommeNov(d) {
                var dataValueNov = 0;
        dateSet = Object.keys(d).filter(parseDate)
          for(k=0 ; k<dateSet.length ; k++){
            if(parseDate(dateSet[k]).getMonth()+1==11){//parce que get.month renvoie un indice entre 0 et 11
                dataValueNov += parseFloat(d[dateSet[k]]);
              }
          }
      return dataValueNov
    }
  </script>
</body>
​
    