ActionScript 3 AS3在0,0处绘制一个点以显示DisplayObject的中心

Posted 2021-05-23

private function showCentre($doc:DisplayObjectContainer = null, $colour:uint = 0x000000, $radius:Number = 2):void
{
	var dot:Shape = new Shape();
	dot.graphics.beginFill($colour);
	dot.graphics.drawCircle(0, 0, $radius);
	dot.graphics.endFill();
	$doc.addChild(dot);
}