Graphics Programs Reference

In-Depth Information

Basically, the i rst four numbers are a compact form of expressing the end result of rotating,

skewing, and scaling an element, and the last two translate that end result. If you understand

matrix-transformation math, then you'll love this. If you don't, don't worry about it overmuch.

You can get to the same place with the other transform values reviewed in this chapter.

If you'd like to learn about matrix transforms, here are two resources:

http://en.wikipedia.org/wiki/Linear_transformation#Examples_

of_linear_transformation_matrices

http://www.mathamazement.com/Lessons/Pre-Calculus/08_Matrices-

and-Determinants/coordinate-transformation-matrices.html

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