title: leaflet js: draw POIs as canvas
body: <p>I want to draw many geo points with Leaflet. Therefore I want to use HTML5 canvas to improve the performance.
  My datasoure is geoJSON. As I saw in the documention of Leaflet, it is not possible to draw the geo positions as canvas yet.</p>
  
  <pre><code>var anotherGeojsonLayer = new L.GeoJSON(coorsField, {
          pointToLayer: function (latlng){
              return new L.Marker(latlng, {
                  icon: new BaseballIcon()
              });
          }
      });
  </code></pre>
  
  <p>I think I should hook up here: </p>
  
  <blockquote>
    <p>pointToLayer: function (latlng) { }</p>
  </blockquote>
  
  <p>Does somebody know how to draw my latlng objects as canvas?</p>