Add ol.renderer.vector.getSquaredTolerance and ol.SIMPLIFY_TOLERANCE

src/ol/ol.js

@@ -173,6 +173,12 @@ ol.MOUSEWHEELZOOM_TIMEOUT_DURATION = 80;
 ol.ROTATE_ANIMATION_DURATION = 250;
 
 
+/**
+ * @define {number} Tolerance for geometry simplification in device pixels.
+ */
+ol.SIMPLIFY_TOLERANCE = 0.5;
+
+
 /**
  * @define {number} Texture cache high water mark.
  */