MACROMEDIA FLASH 8-ACTIONSCRIPT 2.0 LANGUAGE - Matrix (Transform.matrix Property)

Transform (flash.geom.Transform) 1269
Example
The following example applies two Transform objects to both a child and parent MovieClip
object. A
scaleMatrix is then applied to the Transform object parentTrans, which scales
both parent and child MovieClip objects. You can see how
child.concatenatedMatrix is
the combination of
parentTrans and childTrans.
import flash.geom.Transform;
import flash.geom.Matrix;
var parentRect:MovieClip = createRectangle(20, 80, 0xFF0000);
var childRect:MovieClip = createRectangle(10, 40, 0x00FF00, parentRect);
var parentTrans:Transform = new Transform(parentRect);
var childTrans:Transform = new Transform(childRect);
var scaleMatrix:Matrix = new Matrix();
scaleMatrix.scale(2, 2);
parentTrans.matrix = scaleMatrix;
trace(childTrans.concatenatedMatrix); // (a=2, b=0, c=0, d=2, tx=0, ty=0)
trace(childTrans.matrix); // (a=1, b=0, c=0, d=1, tx=0, ty=0)
trace(parentTrans.concatenatedMatrix); // (a=2, b=0, c=0, d=2, tx=0, ty=0)
function createRectangle(width:Number, height:Number, color:Number,
scope:MovieClip):MovieClip {
scope = (scope == undefined) ? this : scope;
var depth:Number = scope.getNextHighestDepth();
var mc:MovieClip = scope.createEmptyMovieClip("mc_" + depth, depth);
mc.beginFill(color);
mc.lineTo(0, height);
mc.lineTo(width, height);
mc.lineTo(width, 0);
mc.lineTo(0, 0);
return mc;
}
matrix (Transform.matrix property)
public matrix : Matrix
A transformation Matrix object containing values that affect the scaling, rotation, and
translation of the movie clip.
Availability: ActionScript 1.0; Flash Player 8