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; }
		
		.province {
				fill: #888;
				stroke: #fff;
				stroke-width: 1px;
		}
		
		.province:hover {
				fill: #7f7f7f;
		}
		.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>

var width = 700;
	var 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(2300);

var path = d3.geoPath() // d3.geo.path avec d3 version 3
		.projection(projection);

var color = d3.scaleLinear().domain([1,length])
		.interpolate(d3.interpolateHcl)
		.range([d3.rgb(255,255,255), d3.rgb(0,193,6)]);

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

d3.csv("https://lyondataviz.github.io/teaching/lyon1-m2/2017/data/GrippeFrance2014.csv", function(data) {
		
		color.domain([0, 200]);
	
		d3.json("https://lyondataviz.github.io/teaching/lyon1-m2/2017/data/regions.json", function(json) {
			
			var weeksArray = Object.keys(data[0]);

//On fusionne les donnees avec le GeoJSON des regions
			for (var i = 0; i < data.length; i++) {
		
				//Nom de l'etat
				var dataState = data[i].region;

for (var j = 0; j < json.features.length; j++) {
			
					var jsonState = json.features[j].properties.nom;
					if (dataState == jsonState) {
			
						//On injecte la/les valeur(s) de l'Etat dans le json
						json.features[j].properties.value = data[i];
						//Pas besoin de chercher plus loin
						break;
					}
				}
			};

// update the elements
			function updateViz(value) {
				//console.log("update " + weeksArray);
				d3.select('#week').html(weeksArray[value]);
				drawMap(value);
			}
			
			function drawMap(currentWeek) {
				province = svg.selectAll(".province")
					.data(json.features);

// code en cas de mise a jour de la carte / de changement de semaine
				province
					.attr("class", "update")
					.style("fill", function(d) {
								
						var value = d.properties.value;
						if (value != undefined){
							value = Number(d.properties.value[weeksArray[currentWeek]]);
							return color(value);
						} else {
							// si pas de valeur alors en gris
							d.properties.value = undefined
							return "#888";
						};					
					})
					.on('mousemove', function(d) {
						var mouse = d3.mouse(svg.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+": <b>"+d.properties.value[weeksArray[currentWeek]]+"</b>");
					})
					.on('mouseout', function() {
						tooltip.classed('hidden', true);
					});

// code pour la creation de la carte quand les donnees sont chargees la 1e fois.
				province.enter()
					.append("path")
					//.attr("class", "enter")
					.attr('class', function(d) {

return 'province ' + d.properties.value;
					})
					.attr('d', path)
					.style("fill", function(d) {
								
						var value = d.properties.value;
						
						if (value != undefined){

value = Number(d.properties.value[weeksArray[currentWeek]]);
							return color(value);
						} else {

// si pas de valeur alors en gris
							d.properties.value = undefined
							return "#888";
						};					
					})
					.on('mousemove', function(d) {
						var mouse = d3.mouse(svg.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+": <b>"+d.properties.value[weeksArray[currentWeek]]+"</b>");
					})
					.on('mouseout', function() {
						tooltip.classed('hidden', true);
					});
			}
	
			d3.select("#slider").on("input", function() {
				updateViz(+this.value);
			});

updateViz(1);
		});
	});
	</script>
</body>

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