DataViz-tp4

forked from aurelient's block:

forked from aurelient's block: DataViz-tp4

<!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; }
    
    .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 );

// On rajoute un groupe englobant toute la visualisation pour plus tard
    var g = svg.append("g"); 
    
    // Centrage de la projection sur la France
    var projection = d3.geoConicConformal().center([2.454071, 46.279229]).scale(2800);

// Recherche de l'etat dans le GeoJSON
             for (var j = 0; j < json.features.length; j++) {
                 var jsonRegion = json.features[j].properties.nom;
                 
                 if (data[i].region == jsonRegion) {
                     // On injecte la valeur de la region dans le json
                     json.features[j].properties.tab = Object.values(data[i]);

break;
                 }
             }	
         }
         
         // Mise a jour des semaines
         function updateViz(val) {
          d3.select('#week').html(semaines[val]);
          drawMap(val);
        };
         
         g.selectAll("path")
            .data(json.features)
            .enter()
            .append("path")
            .attr("d", path)
            
         		drawMap(1);
       		});
     
        //draw map
        function drawMap(value) {

carte = g.selectAll("path")
            .data(franceJson.features)
            .on('mousemove', function(d) {
                
            		var mouse = d3.mouse(g.node()).map(function(d) {
                    return parseInt(d);
                });
            
                tooltip.classed('hidden', false)
                .attr('style', 'left:' + (mouse[0] + 15) + 'px; top:' + (mouse[1] - 35) + 'px')
                .html(d.properties.nom + "<br/>" + regionsFromWeek(d, value));
            })
            
            .on('mouseout', function() {
              tooltip.classed('hidden', true);
            });

//update map 
            carte
            .attr("class", "update")
            .style("fill", function(d) {

// get value found above
              var tab = d.properties.tab;

if (tab) {

return color(tab[value]);

} else {
                // if no value matching, other color 
                return "#ccc";

}

// draw map for the 1st time 
              carte.selectAll("path")
                .enter()
                .data(France.features)
                .append("path")
                .attr("class", "enter")
                .attr("d", path)
                .style("fill", function(d) {

// get value found above
                  var tab = d.properties.tab;

if (tab) {

return color(tab[value]);

} else {
                    // if no value matching, other color 
                    return "#ccc";
                  }

})
            })
        }
      });
    
  </script>
</body>

https://d3js.org/d3.v4.min.js