Groninger gemeenten

This is a TopoJSON file of municipalities in the north of The Netherlands visualized with D3.js. The TopoJSON file was created using Mapshaper.org.

<!DOCTYPE html>
<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");
    var tooltip = d3.select("body")
	                .append("div") 
                    .attr("class", "tooltip")       
                    .style("opacity", 0);
    d3.json("mapshaper.json", function(error, topology) {
        var mapdata = topojson.feature(topology, topology.objects.test);
    		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)
		       .on("mouseover", function(d) {    
                   tooltip.transition()    
                          .duration(200)    
                          .style("opacity", .9);    
                   tooltip.html(d.properties.gemeentenaam)  
                          .style("left", (d3.event.pageX) + "px")   
                          .style("top", (d3.event.pageY - 28) + "px");  
           })          
           .on("mouseout", function(d) {   
                   tooltip.transition()    
                          .duration(500)    
                          .style("opacity", 0); 
           }); 		
    });
</script>

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

https://unpkg.com/topojson@3