Add fabric.Circle#getRadiusX, fabric.Circle#getRadiusY methods.

dist/all.js

@@ -7506,6 +7506,23 @@ fabric.util.animate = animate;
       }
     },
 
+    /**
+     * Returns horizontal radius of an object (according to how an object is scaled)
+     * @method getRadiusX
+     * @return {Number}
+     */
+    getRadiusX: function() {
+      return this.get('radius') * this.get('scaleX');
+    },
+
+    /**
+     * Returns vertical radius of an object (according to how an object is scaled)
+     * @method getRadiusY
+     * @return {Number}
+     */
+    getRadiusY: function() {
+      return this.get('radius') * this.get('scaleY');
+    },
 
     /**
      * Returns complexity of an instance

src/circle.class.js

@@ -69,6 +69,23 @@
       }
     },
     
+    /**
+     * Returns horizontal radius of an object (according to how an object is scaled)
+     * @method getRadiusX
+     * @return {Number}
+     */
+    getRadiusX: function() {
+      return this.get('radius') * this.get('scaleX');
+    },
+    
+    /**
+     * Returns vertical radius of an object (according to how an object is scaled)
+     * @method getRadiusY
+     * @return {Number}
+     */
+    getRadiusY: function() {
+      return this.get('radius') * this.get('scaleY');
+    },
     
     /**
      * Returns complexity of an instance

test/unit/circle.js

@@ -13,6 +13,31 @@
     same(circle.type, 'circle');
   });
   
+  test('getRadiusX, getRadiusY', function() {
+    var circle = new fabric.Circle({ radius: 10 });
+    
+    ok(typeof circle.getRadiusX == 'function', 'getRadiusX should exist');
+    ok(typeof circle.getRadiusY == 'function', 'getRadiusY should exist');
+    
+    equals(circle.getRadiusX(), 10);
+    equals(circle.getRadiusY(), 10);
+    
+    circle.scale(2);
+    
+    equals(circle.getRadiusX(), 20);
+    equals(circle.getRadiusY(), 20);
+    
+    circle.set('scaleX', 3);
+    
+    equals(circle.getRadiusX(), 30);
+    equals(circle.getRadiusY(), 20);
+    
+    circle.set('scaleY', 4);
+    
+    equals(circle.getRadiusX(), 30);
+    equals(circle.getRadiusY(), 40);
+  });
+  
   test('complexity', function() {
     var circle = new fabric.Circle();
     ok(typeof circle.complexity == 'function');