MACROMEDIA FLASH 8-ACTIONSCRIPT 2.0 LANGUAGE Reference page 779

mc.lineTo(width, height);
mc.lineTo(width, 0);
mc.lineTo(0, 0);
return mc;
}
The previous example uses the
. Generally, when dealing with Matrix object positioning, mixing positioning
rectangleMc
techniques is considered poor format. The previous example written in correct syntax would
concatenate a translation Matrix to
. The following example demonstrates this.
rectangleMc
import flash.geom.Matrix;
import flash.geom.Transform;
var myMatrix:Matrix = new Matrix();
trace(myMatrix.toString()); // (a=1, b=0, c=0, d=1, tx=0, ty=0)
var degrees:Number = 30;
var radians:Number = (degrees/180) * Math.PI;
myMatrix.rotate(radians);
trace(myMatrix.toString()); // (a=0.866025403784439, b=0.5, c=-0.5,
d=0.866025403784439, tx=0, ty=0)
var translateMatrix:Matrix = new Matrix();
translateMatrix.translate(100, 0);
myMatrix.concat(translateMatrix);
trace(myMatrix.toString()); // (a=0.866025403784439, b=0.5, c=-0.5,
d=0.866025403784439, tx=100, ty=0)
var rectangleMc:MovieClip = createRectangle(20, 80, 0xFF0000);
trace(rectangleMc._x); // 0
rectangleMc._x = 100;
trace(rectangleMc._x); // 100
var rectangleTrans:Transform = new Transform(rectangleMc);
rectangleTrans.matrix = myMatrix;
trace(rectangleMc._x); // 100
function createRectangle(width:Number, height:Number,
color:Number):MovieClip {
var depth:Number = this.getNextHighestDepth();
var mc:MovieClip = this.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;
}
property of the MovieClip object to position
_x
to change the horizontal location of
myMatrix
Matrix (flash.geom.Matrix) 779