D3 Examples - Counties of Croatia (from '92. to '97.)

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<!DOCTYPE html>
<meta charset="utf-8">
<style>
/*path {
  fill: none;
  stroke: #000;
  stroke-linejoin: round;
  stroke-linecap: round;
}
*/
​
.subunit {
  fill: #777;
​
}
​
​
.country {
  stroke: #fff;
  fill: none;
}
/*
​
*/
​
</style>
<body>
<script src="https://d3js.org/d3.v3.min.js"></script>
<script src="https://d3js.org/topojson.v1.min.js"></script>
<script>
​
var width = 960,
    height = 600;
​
​
var svg = d3.select("body").append("svg")
    .attr("width", width)
    .attr("height", height);
​
​
​
d3.json("croatiatopo.json", function(error, cro) {
  if (error) return console.error(error);
​
  var subunits = topojson.feature(cro, cro.objects.croatia);
​
  
  var projection = d3.geo.mercator()
    .center([15, 37.5]) // x to left, y to bottom
    .scale(5400)
    .translate([width / 3, height * 2]);
    
​
  var path = d3.geo.path()
    .projection(projection);  
​
  zupanije = svg.selectAll(".subunit")
    .data(topojson.feature(cro, cro.objects.croatia).features)
  .enter().append("path")
    .attr("class", function(d) { /* console.log(d);*/ return "subunit " + d.properties.HASC_1.substr(3,2); }) //str.substr(start[, length])
    .attr("d", path);
​
  zupanije.append("title")
      .text(function(d, i) { return d.properties.NAME_1; });  
​
  zupanije.on("mouseover", function (d, i) {
​
    d3.select(this).style("fill", "steelblue"); // .attr("transform", "translate(5,5)");
​
    //console.log(d.properties.NAME_1);
  });
​
  zupanije.on("mouseout", function (d, i) {
​
    d3.select(this).style("fill", "#777");
​
  });
​
  svg.append("path")
    .datum(subunits)
    .attr("d", path)
    .attr("class", "country");  
​
​
});
​
d3.select(self.frameElement).style("height", height + 80 + "px");
​
​
</script>
    