Invert (Matrix.invert Method) - MACROMEDIA FLASH 8-ACTIONSCRIPT 2.0 LANGUAGE Reference

myMatrix.translate(100,200);
trace(myMatrix.toString()); // (a=1.6, b=1.2, c=-1.2, d=1.6, tx=100,
ty=200)
myMatrix.scale(2, 2);
trace(myMatrix.toString()); // (a=3.2, b=2.4, c=-2.4, d=3.2, tx=200,
ty=400)
myMatrix.identity();
trace(myMatrix.toString()); // (a=1, b=0, c=0, d=1, tx=0, ty=0)

invert (Matrix.invert method)

public invert() : Void
Performs the opposite transformation of the original matrix. You can apply an inverted matrix
to an object to undo the transformation performed when applying the original matrix.
Availability: ActionScript 1.0; Flash Player 8
Example
The following example creates
doubleScaleMatrix
that is, matrixes that undo any transformations performed by the other. The example shows
this inversion by creating
import flash.geom.Matrix;
import flash.geom.Transform;
var rectangleMc_0:MovieClip = createRectangle(20, 80, 0xFF0000);
var rectangleMc_1:MovieClip = createRectangle(20, 80, 0x00FF00);
var rectangleMc_2:MovieClip = createRectangle(20, 80, 0x0000FF);
var rectangleMc_3:MovieClip = createRectangle(20, 80, 0x000000);
var rectangleTrans_0:Transform = new Transform(rectangleMc_0);
var rectangleTrans_1:Transform = new Transform(rectangleMc_1);
var rectangleTrans_2:Transform = new Transform(rectangleMc_2);
var rectangleTrans_3:Transform = new Transform(rectangleMc_3);
var doubleScaleMatrix:Matrix = new Matrix(2, 0, 0, 2, 0, 0);
rectangleTrans_0.matrix = doubleScaleMatrix;
trace(doubleScaleMatrix.toString()); // (a=2, b=0, c=0, d=2, tx=0, ty=0)
var noScaleMatrix:Matrix = new Matrix(1, 0, 0, 1, 0, 0);
rectangleTrans_1.matrix = noScaleMatrix;
rectangleMc_1._x = 100;
trace(noScaleMatrix.toString()); // (a=1, b=0, c=0, d=1, tx=0, ty=0)
var halfScaleMatrix:Matrix = doubleScaleMatrix.clone();
halfScaleMatrix
, and then demonstrates that the two are Matrix inverses of one another,
originalAndInverseMatrix
by calling the
invert()
, which is equal to
Matrix (flash.geom.Matrix)
method of
.
noScaleMatrix
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