title: D3js projection EPSG code for ogr2ogr?
body: <p>I use d3js for vector projection, it's something such as <code>d3.geo.mercator()</code>:</p>
  
  <pre><code>var projection = d3.geo.mercator()
          .scale(150)
          .translate([0, 0]);
  </code></pre>
  
  <p>I also use ogr2ogr for raster projections, it's something such as <code>epsg:3857</code>:</p>
  
  <pre><code>gdalwarp -of GTiff -s_srs epsg:4326 -t_srs epsg:3857 ...
  </code></pre>
  
  <p>As I must have the both matching perfectly...</p>
  
  <p><strong>Is there a place where we can find for each <a href="https://github.com/d3/d3-geo-projection/" rel="nofollow">d3js projection</a> to which <a href="http://spatialreference.org/ref/epsg/" rel="nofollow">EPSG projection code</a> it must be associated ?</strong></p>