Package	com.greensock.layout
Class	public class DynamicPinPoint
Inheritance	DynamicPinPoint PinPoint flash.geom.Point

Sometimes it's useful to have a PinPoint base its coordinates on some custom criteria, like the edge of another DisplayObject or the center of an object whose width/height changes frequently, so DynamicPinPoint allows you to associate a function (one you define) that returns a Point instance that will determine the DynamicPinPoint's x/y values. For example, to make the DynamicPinPoint position itself at the center bottom of the "video_mc" object and then attach a "mc" object, you could do this:

var pin:DynamicPinPoint = new DynamicPinPoint(video_mc, getBottomCenter);
pin.attach(mc);
function getBottomCenter():Point {
var bounds:Rectangle = video_mc.getBounds(video_mc);
return new Point(bounds.x + bounds.width / 2, bounds.y + bounds.height);
}

//if you want to initially position the "mc" object directly on the DynamicPinPoint, you could add this:
var p:Point = pin.toLocal(mc.parent);
mc.x = p.x;
mc.y = p.y;


Copyright 2010, GreenSock. All rights reserved. This work is subject to the terms in http://www.greensock.com/terms_of_use.html or for corporate Club GreenSock members, the software agreement that was issued with the corporate membership.

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getter

property

DynamicPinPoint

()

constructor

clone

()

method

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