Chapter 27: math object, Math.concatmatrix(), Read-only; the – Adobe Extending Flash Professional CS4 User Manual
Page 347: Math object, Which provides methods for matrix and point, Read-only property; the, Provides methods for matrix and point operations
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Chapter 27: Math object
Availability
Flash MX 2004.
Description
The Math object is available as a read-only property of the flash object; see
. This object provides methods that
perform common mathematical operations.
Method summary
The following methods are available for the Math object:
Math.concatMatrix()
Availability
Flash MX 2004.
Usage
Math.concatMatrix(mat1, mat2)
Parameters
mat1, mat2
Specify the Matrix objects to be concatenated (see
). Each parameter must be an object with
fields
a
,
b
,
c
,
d
,
tx
, and
ty
.
Returns
A concatenated object matrix.
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 );
Method
Description
Performs a matrix concatenation and returns the result.
Returns the inverse of the specified matrix.
Computes the distance between two points.