This example is part of this blog entry and shows how to use rollup to create a custom bundle with the library d3-composite-projections.
To use this example, just download the files from the gist
git clone https://gist.github.com/0e73c92391def44331d2069755edc199.git
and then:
npm install
npm run build
I took the information from this post by Richa Vyas.
<!DOCTYPE html>
<meta charset="utf-8">
<style>
.states {
fill: #ccc;
stroke: #fff;
}
</style>
<body>
<script src="d3.min.js"></script>
<script>
var width = 960,
height = 500;
var projection = d3.geoConicConformalSpain();
var path = d3.geoPath()
.projection(projection);
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
var t = d3.transition();
d3.json("provincias.json", function(error, spain) {
var spain = d3.feature(spain, spain.objects.provincias);
svg.selectAll(".region")
.data(spain.features)
.enter()
.append("path")
.attr("class", "region")
.attr("d", path)
.style("fill", "#aca")
.style("stroke", "#000")
.style("stroke-width", "0.5px")
.on("mouseover", function(d,i) {
d3.select(this).interrupt();
d3.select(this)
.transition(t)
.style("fill", "red");
})
.on("mouseout", function(d,i) {
d3.select(this).interrupt();
d3.select(this)
.transition(t)
.style("fill", "#aca");
});;
svg
.append("path")
.style("fill","none")
.style("stroke","#f00")
.attr("d", projection.getCompositionBorders());
});
</script>