User Guide

328 Objects
Description
Method; performs a matrix concatenation and returns the result.
Example
The following example stores the currently selected object in the elt variable, multiplies the
object matrix by the view matrix, and stores that value in the
mat variable:
var elt = fl.getDocumentDOM().selection[0];
var mat = fl.Math.concatMatrix( elt.matrix , fl.getDocumentDOM().viewMatrix
);
Math.invertMatrix()
Availability
Flash MX 2004.
Usage
Math.invertMatrix(mat)
Parameters
mat Indicates the Matrix object to invert (see Matrix object). It must have the following
fields:
a, b, c, d, tx, and ty.
Returns
A Matrix object that is the inverse of the original matrix.
Description
Method; returns the inverse of the specified matrix.
Example
The following example stores the currently selected object in the elt variable, assigns that
matrix to the
mat variable, and stores the inverse of the matrix in the inv variable:
var elt = fl.getDocumentDOM().selection[0];
var mat = elt.matrix;
var inv = fl.Math.invertMatrix( mat );