D3 Examples - visualización

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<!DOCTYPE html>
<meta charset="utf-8">
<style>
.background {
  fill: none;
  pointer-events: all;
}
​
.mpio {fill : #ddc;}
​
.mpio-borde {
  fill: none;
  stroke: #fff;
  stroke-linejoin: round;
  stroke-width: 0.5;
 }
 
.depto-borde {
  fill: none;
  stroke: #fff;
  stroke-linejoin: round;
  stroke-width: 2;}
  
#feature {
  fill: #ccc;
  cursor: pointer;
}
​
#feature.active {
  fill: orange;
}
​
.mesh {
  fill: none;
  stroke: #fff;
  stroke-linecap: round;
  stroke-linejoin: round;
}
​
</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 = 600,
    height = 600,
    active = d3.select(null);
​
var projection = d3.geo.mercator()
    .scale(1300)
    .translate([width / 2, height / 2])
    .center([-61,43])
    .rotate([2,3,2]);
​
var path = d3.geo.path()
    .projection(projection);
​
var svg = d3.select("body").append("svg")
    .attr("width", width)
    .attr("height", height);
    
svg.append("rect")
    .attr("class", "background")
    .attr("width", width)
    .attr("height", height)
    .on("click", reset);
    
var g = svg.append("g")
    .style("stroke-width", "1.5px");
/* 
ogr2ogr -f GeoJSON depts.json depto.shp -s_srs EPSG:26986 -t_srs EPSG:4326
topojson --id-property NOMBRE_DPT -p name=NOMBRE_DPT -p name -o colombia-departamentos.json depts.json
*/
​
d3.json("colombia-municipios.json", function(error, co) {
    var subunits = topojson.feature(co, co.objects.mpios);
   
    g.append("path")
        .datum(subunits)
        .attr("d", path);
    
    /*g.selectAll(".mpio")
        .data(topojson.feature(co, co.objects.mpios).features)
        .enter().append("path")
        .attr("class", function(d) { return "mpio " + "_" + d.id; })
        .attr("id", "feature")
        .attr("d", path)
        .on("click", clicked)
        .style("fill", function(d) {
            if(d.properties.dpt=="CUNDINAMARCA"){
                return "#F01";
            }
            else{
                return "#ccc"
            }           
         });*/
    g.selectAll(".mpio")
        .data(topojson.feature(co, co.objects.depts).features)
        .enter().append("path")
        .attr("class", function(d) { return "mpio" + "_" + d.properties.dpt; })
        .attr("id", "feature")
        .attr("d", path)
        .style("fill", "#ccc")
        .on("click", clicked);
         
g.append("path")
    .datum(topojson.mesh(co, co.objects.mpios, function(a, b) { return a !== b; }))
    .attr("d", path)
    .attr("class", "mpio-borde");
    g.append("path")
    .datum(topojson.mesh(co, co.objects.depts, function(a, b) { return a !== b; }))
    .attr("d", path)
    .attr("class", "depto-borde");
  
});
​
function clicked(d) {
  if (active.node() === this) return reset();
  active.classed("active", false);
  active = d3.select(this).classed("active", true);
​
  var bounds = path.bounds(d),
      dx = bounds[1][0] - bounds[0][0],
      dy = bounds[1][1] - bounds[0][1],
      x = (bounds[0][0] + bounds[1][0]) / 2,
      y = (bounds[0][1] + bounds[1][1]) / 2,
      scale = .9 / Math.max(dx / width, dy / height),
      translate = [width / 2 - scale * x, height / 2 - scale * y];
​
  g.transition()
      .duration(750)
      .style("stroke-width", 1.5 / scale + "px")
      .attr("transform", "translate(" + translate + ")scale(" + scale + ")");
}
​
function reset() {
  active.classed("active", false);
  active = d3.select(null);
​
  g.transition()
      .duration(750)
      .style("stroke-width", "1.5px")
      .attr("transform", "");
}
​
</script>
    