Example: Applying A Matrix Transformation To A Display Object - Adobe FLEX 2-PROGRAMMING ACTIONSCRIPT 3.0 Manual

The following code produces the last radial gradient illustrated:
import flash.display.Shape;
import flash.display.GradientType;
import flash.geom.Matrix;
var type:String = GradientType.RADIAL;
var colors:Array = [0x00FF00, 0x000088];
var alphas:Array = [1, 1];
var ratios:Array = [0, 255];
var spreadMethod:String = SpreadMethod.PAD;
var interp:String = InterpolationMethod.LINEAR_RGB;
var focalPtRatio:Number = 0;
var matrix:Matrix = new Matrix();
var boxWidth:Number = 50;
var boxHeight:Number = 100;
var boxRotation:Number = Math.PI/2; // 90°
var tx:Number = 25;
var ty:Number = 0;
matrix.createGradientBox(boxWidth, boxHeight, boxRotation, tx, ty);
var square:Shape = new Shape;
square.graphics.beginGradientFill(type,
colors,
alphas,
ratios,
matrix,
spreadMethod,
interp,
focalPtRatio);
square.graphics.drawRect(0, 0, 100, 100);
addChild(square);
Example: Applying a matrix
transformation to a display object
The DisplayObjectTransformer sample application shows a number of features of using the
Matrix class to transform a display object, including the following:
Rotating the display object
■
Scaling the display object
■
Translating (repositioning) the display object
■
Skewing the display object
■
428 Working with Geometry