User Guide

Matrix object 231
You can rotate an object by setting the a, b, c, and d matrix properties relative to one another,
where
a = d and b = -c. For example, values of 0.5, 0.8, -0.8, and 0.5 rotate the object 60
º
:
var mat = fl.getDocumentDOM().selection[0].matrix;
mat.a = 0.5;
mat.b = 0.8;
mat.c = 0.8*(-1);
mat.d = 0.5;
fl.getDocumentDOM().selection[0].matrix = mat;
You can set a = d = 1 and c = b = 0 to reset the object back to its original shape.
matrix.b
Availability
Flash MX 2004.
Usage
matrix.b
Description
Property; a floating-point value that specifies the (0,1) element in the matrix. This value
represents the vertical skew of a shape; it causes Flash to move the shape’s right edge along the
vertical axis.
The
matrix.b and matrix.c properties in a matrix represent skewing.
Example
In the following example, you can set b and c to -1 and 0, respectively; these settings skew the
object at a 45º vertical angle:
var mat = fl.getDocumentDOM().selection[0].matrix;
mat.b = -1;
mat.c = 0;
fl.getDocumentDOM().selection[0].matrix = mat;
To skew the object back to its original shape, you can set b and c to 0.
See the
matrix.a example.
matrix.c
Availability
Flash MX 2004.
Usage
matrix.c
Description
Property; a floating-point value that specifies the (1,0) element in the matrix. This value causes
Flash to skew the object by moving its bottom edge along a horizontal axis.
The
matrix.b and matrix.c properties in a matrix represent skewing.