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SVG.Ellipse = function Ellipse() {
this.constructor.call(this, SVG.create('ellipse'));
};
// inherit from SVG.Shape
SVG.Ellipse.prototype = new SVG.Shape();
// Add ellipse-specific functions
SVG.extend(SVG.Ellipse, {
// custom move function
move: function(x, y) {
this.attrs.x = x;
this.attrs.y = y;
return this.center();
},
// custom size function
size: function(w, h) {
return this.
attr({ rx: w / 2, ry: (h != null ? h : w) / 2 }).
center();
},
// position element by its center
center: function(x, y) {
return this.attr({
cx: x || (this.attrs.x || 0) + (this.attrs.rx || 0),
cy: y || (this.attrs.y || 0) + (this.attrs.ry || 0)
});
}
});
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