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<script src="https://d3js.org/d3.v4.min.js"></script>
<script src="https://unpkg.com/topojson@3"></script>
<div class="graph"></div>
<script>
var width = 700, height = 400;
var svg = d3.select(".graph").append("svg")
.attr("viewBox", "0 0 " + (width) + " " + (height))
.style("max-width", "700px")
d3.json("gemeenten.json", function(error, topology) {
var mapdata = topojson.feature(topology, topology.objects.gemeenten);
var projection = d3.geoMercator();
var path = d3.geoPath().projection(projection);
projection.fitSize([width,height],{"type": "FeatureCollection", "features": mapdata.features})
svg.append("g")
.attr("class", "gemeente")
.selectAll("path")
.data(mapdata.features)
.enter()
.append("path")
.attr("d", path)
});
</script>
https://d3js.org/d3.v4.min.js
https://unpkg.com/topojson@3