D3 Examples - The Choropleth Map

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<!DOCTYPE html>
<meta charset="utf-8">
<style>
​
.counties {
  fill: none;
}
​
.states {
  fill: none;
  stroke: #fff;
  stroke-linejoin: round;
}
​
.q0-9 { fill:rgb(247,251,255); }
.q1-9 { fill:rgb(222,235,247); }
.q2-9 { fill:rgb(198,219,239); }
.q3-9 { fill:rgb(158,202,225); }
.q4-9 { fill:rgb(107,174,214); }
.q5-9 { fill:rgb(66,146,198); }
.q6-9 { fill:rgb(33,113,181); }
.q7-9 { fill:rgb(8,81,156); }
.q8-9 { fill:rgb(8,48,107); }
​
</style>
<body>
<link href="https://rawgithub.com/VisDockHub/NewVisDock/master/master/visdock.css" rel="stylesheet" type="text/css"/>
<script src="https://d3js.org/d3.v3.min.js"></script>
<script src="https://d3js.org/queue.v1.min.js"></script>
<script src="https://d3js.org/topojson.v1.min.js"></script>
<script src="https://rawgithub.com/visdockhub/newvisdock/master/master/visdock.js"></script>
<script src="https://rawgithub.com/visdockhub/newvisdock/master/master/2d.js"></script>
<script src="https://rawgithub.com/visdockhub/newvisdock/master/master/intersectionutilities.js"></script>
<script src="https://rawgithub.com/visdockhub/newvisdock/master/master/visdock.utils.js"></script>
<script>
​
var width = 960,
    height = 500;
​
VisDock.init("body", {width: 960, height: 700});
var viewport = VisDock.getViewport();
​
var rateById = d3.map();
​
var quantize = d3.scale.quantize()
    .domain([0, .15])
    .range(d3.range(9).map(function(i) { return "q" + i + "-9"; }));
​
var path = d3.geo.path();
​
var svg = viewport;
​
queue()
    .defer(d3.json, "/VisDockHub/raw/8971488/us.json")
    .defer(d3.tsv, "unemployment.tsv", function(d) { rateById.set(d.id, +d.rate); })
    .await(ready);
​
function ready(error, us) {
  VisDock.startChrome();
  svg.append("g")
      .attr("class", "counties")
    .selectAll("path")
      .data(topojson.feature(us, us.objects.counties).features)
    .enter().append("path")
      .attr("class", function(d) { return quantize(rateById.get(d.id)); })
      .attr("d", path);
​
  svg.append("path")
      .datum(topojson.mesh(us, us.objects.states, function(a, b) { return a !== b; }))
      .attr("class", "states")
      .attr("d", path);
  VisDock.finishChrome();
}
​
    VisDock.eventHandler = {
        getHitsPolygon : function(points, inclusive) {
            var shapebound = new createPolygon(points);
            return shapebound.intersectPath(d3.selectAll(".counties").selectAll("path")[0], inclusive)
        },
        getHitsLine : function(points, inclusive) {
            var shapebound = new createLine(points);
            return shapebound.intersectPath(d3.selectAll(".counties").selectAll("path")[0], inclusive)
            },
        getHitsEllipse : function(points, inclusive) {
            var shapebound = new createEllipse(points);
            return shapebound.intersectPath(d3.selectAll(".counties").selectAll("path")[0], inclusive)
        },
        setColor : function(hits) {
            QueryManager.layers[num - 1] = [];
            for (var i = 0; i < hits.length; i++) {
                var str = hits[i].getAttributeNS(null, "d")
                QueryManager.layers[num - 1][i] = d3.selectAll(".counties").append("path").attr("d", str)
                    .attr("style", "fill: " + VisDock.color[num - 1] + "; opacity: 0.5; pointer-events: none");
            }
​
        },
        changeColor : function(color, query, index) {
            for (var i = 0; i < query.length; i++) {
                var vis = query[i].attr("style").split("opacity:")[1].split(";")[0];
                query[i][0][0].setAttributeNS(null, "style", "fill: " + color + "; opacity: " + vis)
            }
        },
        changeVisibility : function(vis, query, index) {
            for (var i = 0; i < query.length; i++) {
                var color = query[i].attr("style").split("fill:")[1].split(";")[0];
                query[i][0][0].setAttributeNS(null, "style", "fill: " + color + "; opacity: " + vis)
            }
        },
        removeColor : function(hits, index) {
            for (var i = 0; i < hits.length; i++) {
                hits[i].remove();
            }
        },
        QueryClick : function(query, index) {
        }
    }
BirdView.init(viewport, 960, 700)
d3.select(self.frameElement).style("width", "960px")
d3.select(self.frameElement).style("height", "700px")
</script>
    