
1. Re: how to get started in matrix math...
Daniel Rinehart Aug 30, 2010 7:12 AM (in response to dotsandlines)1 person found this helpfulThe Wikipedia article on Transformation matrix will give you an idea
about the raw math (this type of matrix performs this type of
transform):
http://en.wikipedia.org/wiki/Transformation_matrix
Each transform matrix also has a link to more detailed article about
how the translation takes place.
 Daniel R. <danielr@neophi.com> http://danielr.neophi.com/

2. Re: how to get started in matrix math...
dotsandlines Aug 30, 2010 8:12 AM (in response to Daniel Rinehart)Thanks, I'd seen the page and I think maybe I need something a step or two back  I think I can grasp why the rotation and sharing matrices look the way they do, the others are a little much at the moment.
In the end I want to be able to generate my own for a particular transform I have in mind. Trying to understand how to get there.

3. Re: how to get started in matrix math...
unique_screenname_here Aug 31, 2010 4:42 PM (in response to dotsandlines)1 person found this helpfulYou may want to check out John Vince's book, "Mathematics for Computer Graphics." It's a good book and covers transformations.

4. Re: how to get started in matrix math...
dotsandlines Sep 2, 2010 6:42 PM (in response to unique_screenname_here)Thanks, I will check it out.

5. Re: how to get started in matrix math...
makc3d Sep 3, 2010 2:03 AM (in response to dotsandlines)one easy way to understand what matrix does is to look at its columns  they are vectors that this matrix turns unit vectors into. e.g., this matrix
A C
B D
will turn vector (1, 0) into (A, B) and (0, 1) into (C, D)  thus you can see easily rotation and shearing it does.