File: graphics/js/CircleGroup.js

            /**
             * Abstract class for creating groups of circles with the same styles and dimensions.
             *
             * @class CircleGroup
             * @constructor
             * @submodule graphics-group
             */
             CircleGroup = function()
             {
                CircleGroup.superclass.constructor.apply(this, arguments);
             };
            
             CircleGroup.NAME = "circleGroup";
            
             Y.extend(CircleGroup, Y.ShapeGroup, {
                /**
                 * Algorithm for drawing shape.
                 *
                 * @method drawShape
                 * @param {Object} cfg Parameters used to draw the shape.
                 */
                drawShape: function(cfg)
                {
                    this.drawCircle(cfg.x, cfg.y, cfg.radius);
                }
             });
            
            CircleGroup.ATTRS = Y.merge(Y.ShapeGroup.ATTRS, {
                dimensions: {
                    getter: function()
                    {
                        var dimensions = this._dimensions,
                            radius,
                            yRadius,
                            width,
                            height;
                        if(dimensions.hasOwnProperty("radius"))
                        {
                            return dimensions;
                        }
                        else
                        {
                            width = dimensions.width;
                            height = dimensions.height;
                            radius = Y_Lang.isArray(width) ? this._getRadiusCollection(width) : (width * 0.5);
                            yRadius = radius;
                            return {
                                width: width,
                                height: height,
                                radius: radius,
                                yRadius: yRadius
                            };
                        }
                    }
                }
            });
            
            CircleGroup.ATTRS = Y.ShapeGroup.ATTRS;
            Y.CircleGroup = CircleGroup;