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karmadude

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India Population 2011

Data

Outline & major cities in TopoJSON
States in TopoJSON
2011 Population in JSON

Uses

d3.geo.mercator projection
d3.geo.tile plugin
Natural Earth II tiles

Referece

<!DOCTYPE html>
<meta charset="utf-8">
<link href='https://fonts.googleapis.com/css?family=Jacques+Francois+Shadow' rel='stylesheet' type='text/css'>
<style>
body {
  background: #faf5e2;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: #444;
  font-size: 12px;
}

header {
  color: #7c6e63;
  text-transform: uppercase;
  width: 960px;
  margin: 0 auto;
  position: relative;
}

header h1 {
  font-family: 'Jacques Francois Shadow', cursive;
  font-size: 24px;
  text-align: center;
  margin-bottom: 0;
}

header h2 {
  font-family: "HelveticaNeue-ThinCond", "Helvetica Neue Thin Cond", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-weight: 300;
  font-size: 18px;
  position: absolute;
  top: -7px;
}

header h2.right {
  right: 0;
}

.subunit {
  fill: none;
  stroke: #597a99;
  stroke-width: .5;
}

.subunit.INX {

}

.subunit.INA {
}

.subunit.INN {
}

.subunit.INL {
}

.subunit.natural-earth {
  fill: none;
}

.graticule {
  fill: none;
  stroke: #80B7D5;
  stroke-width: .5px;
}

.frame1 {
  width: 952px;
  height: 608px;
  margin: 0 auto;
  border: 2px solid #6b5d50;
  padding: 2px;
}

.frame2 {
  border: 1px solid #a19e8d;
  padding: 20px;
}

.map {
  background: #a3bfd5;
}

.place {
  fill: rgba(255,255,255,0.01);
  stroke: #584f46;
}

#states {
  fill: rgba(255,255,255,0.01);
  stroke: #7D947C;
  stroke-width: .5px;
}

.state.hover {
  fill: rgba(255,255,255,0.50);
}

text {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 10px;
  pointer-events: none;
}

.line {
  fill: none;
  stroke: #ddd;
}

.tooltip {
  position: absolute;
  background: rgba(200,200,200,0.75);
  border: 1px solid #ddd;
  padding: 5px 12px;
  border-radius: 5px;
  box-shadow: 2px 2px 2px rgba(120,120,120,0.55);
  text-shadow: 0 1px 0 #eee;
}

.state-title {
    font-weight: bold;
    color: #333;
    margin-bottom: 5px;
  }

.state-population {
    font-size: 18px;
  }
</style>

<body>
  <header>
    <h1>India Population</h1>
    <h2 class="left">1,210,193,422</h1>
    <h2 class="right">Census 2011</h2>
  </header>

var width = 910,
    height = 563;

var projection = d3.geo.mercator()
  .center([83, 23.5])
  .scale(890);

var path = d3.geo.path()
  .projection(projection)
  .pointRadius(2);

var tile = d3.geo.tile()
    .scale(projection.scale() * 2 * Math.PI)
    .translate(projection([0, 0]))
    .zoomDelta((window.devicePixelRatio || 1) - .5);

var svg = d3.select(".map")
  .append("svg")
    .attr("width", width)
    .attr("height", height);

var tooltip = d3.select("body")
  .append("div")
    .attr("class", "tooltip")
    .style("opacity", 0);

tooltip.append("div")
    .attr("class", "state-title");
tooltip.append("div")
    .attr("class", "state-population");

var defs = svg.append("defs");

var ne = svg.append("g")
  .attr("id", "natural-earth");

var india = svg.append("g")
  .attr("id", "india");

var indiaPlaces = svg.append("g")
  .attr("id", "places");

var states = svg.append("g")
  .attr("id", "states");

var pop;

var format1000 = d3.format(',');

d3.json("/d/4527959/in-map-major-cities.json", function(error, data) {
  drawNaturalEarth();
  drawIndia(data);
  drawIndiaPlaces(data);
  drawStates(function() {
  });
});

function drawIndia(data) {
  var subunits = topojson.object(data, data.objects.subunits);

india.selectAll("path.subpath")
      .data(subunits.geometries)
    .enter().append("path")
      .attr('class', function(d) { return 'subunit ' + d.id; })
      .attr('id', function(d) { return d.id; })
      .attr("d", path);
}

function drawIndiaPlaces(data) {
  indiaPlaces.selectAll("path.place")
      .data(topojson.object(data, data.objects.places).geometries)
    .enter().append("path")
      .attr("d", path)
      .attr("class", "place")
      .on("mouseenter", function(d) {
          tooltip.transition()
            .duration(100)
            .style("opacity", 1);

tooltip.select('.state-title')
            .text(d.properties.name);
          tooltip.select('.state-population')
              .text('');
        })
        .on("mousemove", function(d) {
          tooltip.style("left", (d3.event.pageX+5) + "px")
            .style("top", (d3.event.pageY+5) + "px");
        })
        .on("mouseleave", function(d) {
          tooltip.transition()
            .duration(100)
            .style("opacity", 0);
        });
}

// Code from D3 United States Example at https://bl.ocks.org/4150951
function drawNaturalEarth() {
  var tiles = tile();

india.selectAll('.subunit')
    .classed('natural-earth', true);

var clips = defs.append("clipPath")
      .attr("id", "clip");
  clips.append("use")
      .attr("xlink:href", "#INX");
  clips.append("use")
      .attr("xlink:href", "#INA");
  clips.append("use")
      .attr("xlink:href", "#INN");
  clips.append("use")
      .attr("xlink:href", "#INL");

ne.attr("clip-path", "url(#clip)")
      .selectAll("image")
        .data(tiles)
      .enter().append("image")
        .attr("xlink:href", function(d) { return "https://" + ["a", "b", "c", "d"][Math.random() * 4 | 0] + ".tiles.mapbox.com/v3/mapbox.natural-earth-2/" + d[2] + "/" + d[0] + "/" + d[1] + ".png"; })
        .attr("width", Math.round(tiles.scale))
        .attr("height", Math.round(tiles.scale))
        .attr("x", function(d) { return Math.round((d[0] + tiles.translate[0]) * tiles.scale); })
        .attr("y", function(d) { return Math.round((d[1] + tiles.translate[1]) * tiles.scale); });
}

function drawStates(callback) {
  d3.json("/d/4527959/in-states-topo.json", function(data) {
    states.selectAll("path")
        .data(topojson.object(data, data.objects.states).geometries)
      .enter().append("path")
        .attr('class', "state")
        .attr("title", function(d) { return d.properties.name; })
        .attr("d", path)
        .on("mouseenter", function(d) {
          d3.select(this).classed('hover', true);
          tooltip.transition()
            .duration(100)
            .style("opacity", 1);

if (pop[d.id]) {
            tooltip.select('.state-title')
              .text(d.properties.name);
            tooltip.select('.state-population')
              .text(format1000(pop[d.id]));
          }
        })
        .on("mousemove", function(d) {
          tooltip.style("left", (d3.event.pageX+5) + "px")
            .style("top", (d3.event.pageY+5) + "px");
        })
        .on("mouseleave", function(d) {
          d3.select(this).classed('hover', false);
          tooltip.transition()
            .duration(100)
            .style("opacity", 0);
        });

drawPopulation(callback);
  });
}

function drawPopulation(callback) {
  d3.json("/d/4527959/in-population.json", function(population) {
    pop = population.states;
      callback();
  });
}

d3.select(self.frameElement.parentElement).style('background', '#faf5e2');
  d3.select(self.frameElement)
    .style("height", "664px")
    .style("border", "none");

</script>
</body>

Modified http://d3js.org/d3.v3.js to a secure url

Modified http://d3js.org/d3.geo.tile.v0.min.js to a secure url

Modified http://d3js.org/topojson.v0.min.js to a secure url

https://d3js.org/d3.v3.js

https://d3js.org/d3.geo.tile.v0.min.js

https://d3js.org/topojson.v0.min.js