tmcw/buurten.json

## buurten.json

      
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## index.html
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Heerlen</title>

    <link rel="stylesheet" href="style.css">
</head>
<body>
<svg id="map"></svg>

<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/4.13.0/d3.min.js" charset="utf-8"></script>
<script src="index.js"></script>
</body>
</html>

## index.js
var margin = { top: 50, right: 50, bottom: -20, left: 50 },
    width = 250 - margin.left - margin.right,
    height = 350 - margin.top - margin.bottom;

var svg = d3.select("#map")
    .attr("width", width + margin.left + margin.right)
    .attr("height", height + margin.top + margin.bottom)
    .append("g")
    .attr("transform", "translate(" + margin.left + "," + margin.top +")");

var projection = d3.geoMercator()
    .center([5.961, 50.865])
    .scale(100000)
    .translate([width / 2, height / 2]);

var path = d3.geoPath()
    .projection(projection);

var color = d3.scaleLinear()
    .domain([0, 250, 500, 1400, 2800, 3600, 4500])
    .range(['#ffffcc','#c7e9b4','#7fcdbb','#41b6c4','#1d91c0','#225ea8','#0c2c84']);

d3.json("buurten.json", function(err, json) {
if (err) throw error;

function drawMap() {
    var features = svg.append("g")
        .attr("class", "heerlen")
        .selectAll("#map")
        .data(json.features);

    featuresEnter = features
        .enter().append("g")
        .attr("class", function(d) { return "buurt " + d.properties.BU_NAAM})
        .append("path")
        .attr("d", path)
            .style("fill", function(d) {
            return color(d.properties.AANT_INW); });

    console.log(featuresEnter);
    featuresEnter.on("mousemove", function(d) {
                console.log(d.properties.AANT_INW);
        });
};

function loopThrough() {
    for (var i=0;i<json.features.length;i++){
        var buurtInw = json.features[i].properties.AANT_INW;
        var buurtNaam = json.features[i].properties.BU_NAAM;

        //console.log(buurtNaam + ": " + buurtInw);
    }
}

drawMap();
loopThrough();

//    console.log(json);
//    console.log(json.features);
//    console.log(json.features[4].properties);
//    console.log(json.features[4].properties.AANT_INW);
//    console.log(json.features[4].properties.BU_NAAM);

});

## style.css
body {
    background: whitesmoke;
}

.buurten, .heerlen {
    stroke: #444;
    stroke-width: 1px;
    stroke-linejoin: round;
    stroke-linecap: round;
    pointer-events: none;
}

div.tooltip {
  position: absolute;
  text-align: center;
  width: 60px;
  height: 28px;
  padding: 2px;
  font: 12px sans-serif;
  background: lightsteelblue;
  border: 0px;
  border-radius: 8px;
  pointer-events: none;
}
	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<title>Heerlen</title>

	<link rel="stylesheet" href="style.css">
	</head>
	<body>
	<svg id="map"></svg>

	<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/4.13.0/d3.min.js" charset="utf-8"></script>
	<script src="index.js"></script>
	</body>
	</html>
	var margin = { top: 50, right: 50, bottom: -20, left: 50 },
	width = 250 - margin.left - margin.right,
	height = 350 - margin.top - margin.bottom;

	var svg = d3.select("#map")
	.attr("width", width + margin.left + margin.right)
	.attr("height", height + margin.top + margin.bottom)
	.append("g")
	.attr("transform", "translate(" + margin.left + "," + margin.top +")");

	var projection = d3.geoMercator()
	.center([5.961, 50.865])
	.scale(100000)
	.translate([width / 2, height / 2]);

	var path = d3.geoPath()
	.projection(projection);

	var color = d3.scaleLinear()
	.domain([0, 250, 500, 1400, 2800, 3600, 4500])
	.range(['#ffffcc','#c7e9b4','#7fcdbb','#41b6c4','#1d91c0','#225ea8','#0c2c84']);

	d3.json("buurten.json", function(err, json) {
	if (err) throw error;

	function drawMap() {
	var features = svg.append("g")
	.attr("class", "heerlen")
	.selectAll("#map")
	.data(json.features);

	featuresEnter = features
	.enter().append("g")
	.attr("class", function(d) { return "buurt " + d.properties.BU_NAAM})
	.append("path")
	.attr("d", path)
	.style("fill", function(d) {
	return color(d.properties.AANT_INW); });

	console.log(featuresEnter);
	featuresEnter.on("mousemove", function(d) {
	console.log(d.properties.AANT_INW);
	});
	};

	function loopThrough() {
	for (var i=0;i<json.features.length;i++){
	var buurtInw = json.features[i].properties.AANT_INW;
	var buurtNaam = json.features[i].properties.BU_NAAM;

	//console.log(buurtNaam + ": " + buurtInw);
	}
	}

	drawMap();
	loopThrough();

	// console.log(json);
	// console.log(json.features);
	// console.log(json.features[4].properties);
	// console.log(json.features[4].properties.AANT_INW);
	// console.log(json.features[4].properties.BU_NAAM);

	});
	body {
	background: whitesmoke;
	}

	.buurten, .heerlen {
	stroke: #444;
	stroke-width: 1px;
	stroke-linejoin: round;
	stroke-linecap: round;
	pointer-events: none;
	}

	div.tooltip {
	position: absolute;
	text-align: center;
	width: 60px;
	height: 28px;
	padding: 2px;
	font: 12px sans-serif;
	background: lightsteelblue;
	border: 0px;
	border-radius: 8px;
	pointer-events: none;
	}