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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