ACTIONSCRIPT 3 Developer’s Guide en

ACTIONSCRIPT 3.0 DEVELOPER’S GUIDE
Working with geometry
The resulting skew is then applied to the existing matrix by concatenating the two matrixes, as the following example
shows:
sourceMatrix.concat(skewMatrix);
return sourceMatrix;
The scale() method
The following example shows the scale() method adjusts the scale factor if it is provided as a percentage, first, and
then uses the scale() method of the matrix object:
if (percent)
{
xScale = xScale / 100;
yScale = yScale / 100;
}
sourceMatrix.scale(xScale, yScale);
return sourceMatrix;
The translate() method
The translate() method simply applies the dx and dy translation factors by calling the translate() method of the
matrix object, as follows:
sourceMatrix.translate(dx, dy);
return sourceMatrix;
The rotate() method
The rotate() method converts the input rotation factor to radians (if it is provided in degrees or gradients), and then
calls the rotate() method of the matrix object:
if (unit == "degrees")
{
angle = Math.PI * 2 * angle / 360;
}
if (unit == "gradients")
{
angle = Math.PI * 2 * angle / 100;
}
sourceMatrix.rotate(angle);
return sourceMatrix;
Calling the MatrixTransformer.transform() method from the application
Flash Player 9 and later, Adobe AIR 1.0 and later
The application contains a user interface for getting the transformation parameters from the user. It then passes these
values, along with the matrix property of the transform property of the display object, to the Matrix.transform()
method, as follows:
Last updated 6/6/2012
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