marker-line is not taken into account to calculate cached sprites size fixed #15

lib/torque/renderer/point.js

@@ -60,10 +60,12 @@
       }, shaderVars);
 
       var pointSize = st['point-radius'];
-      if(!pointSize) {
+      if (!pointSize) {
         throw new Error("marker-width property should be set");
       }
-      var canvasSize = pointSize*2;
+
+      // take into account the exterior ring to calculate the size
+      var canvasSize = (st.lineWidth || 0) + pointSize*2;
 
       var canvas = document.createElement('canvas');
       var ctx = canvas.getContext('2d');