Parrainages présidentielle 2017 1er mars [UNLISTED]

This file shows how to use the geoConicConformalFrance projection from d3-composite-projections. without using node.

forked from rveciana's block: conicConformalFrance linked directly example

<!DOCTYPE html>
<meta charset="utf-8">
<style>

.states {
  fill: #ccc;
  stroke: #fff;
}
</style>
<body>
<script src="https://d3js.org/d3.v4.min.js"></script>
<script src="https://d3js.org/topojson.v1.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3-composite-projections/1.0.1/d3-composite-projections.min.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/d3-legend/2.21.0/d3-legend.min.js"></script>
<script>
var width = 960,
    height = 500;

var projection = d3.geoConicConformalFrance();
var path = d3.geoPath()
    .projection(projection);

var color = d3.scaleOrdinal(d3.schemeCategory10);
  
var svg = d3.select("body").append("svg")
    .attr("width", width)
    .attr("height", height);

var t = d3.transition();
d3.json("france.json", function(error, france) {
  var france = topojson.feature(france, france.objects.regions);
  svg.selectAll(".region")
      .data(france.features)
      .enter()
      .append("path")
      .attr("class", "region")
      .attr("d", path)
      .style("fill", "#eff5ef")
      .style("stroke", "#000")
      .style("stroke-width", "0.5px");

svg
    .append("path")
      .style("fill","none")
      .style("stroke","#f00")
      .attr("d", projection.getCompositionBorders());

d3.csv('parrainages-geocodes.csv', function(err, data) {
    candidats = {};
    data.map(d => d['Candidat-e'])
    .map(d => candidats[d] = (candidats[d] || 0) + 1);
    
    
    data = data.map(d => {
      let p = projection([d.lon, d.lat]);
      d.x = p[0];
      d.y = p[1];
      var c = d['Candidat-e'];
      if (candidats[c] < 15) c = 'Autres'; else c += ' (' + candidats[c] + ')'
      d.color = color(c);
      return d;
    });

svg.append('g')
    .selectAll('circle')
    .data(data)
    .enter()
    .append('circle')
    .attr('r', 3)
    .attr('transform', d => `translate(${[d.x,d.y]})`)
    .attr('fill', d => d.color)
    .attr('fill-opacity', 0.6)
    .attr('stroke', 'black')
    .attr('stroke-width', 0.3)
    .append('title')
    .text(d => d['Candidat-e']);
  
  var legend = d3.legendColor()
  .labelFormat(d3.format(".2f"))
  .title("Candidats")
  .titleWidth(100)
  .scale(color);
  
  svg.append('g')
    .attr("transform", "translate(20,20)")
    .call(legend);
    });

});

</script>

Modified http://d3js.org/topojson.v1.min.js to a secure url

https://d3js.org/d3.v4.min.js

https://d3js.org/topojson.v1.min.js

https://cdnjs.cloudflare.com/ajax/libs/d3-composite-projections/1.0.1/d3-composite-projections.min.js

https://cdnjs.cloudflare.com/ajax/libs/d3-legend/2.21.0/d3-legend.min.js