Scripting Guide - SAS

Chapter 13 Three-Dimensional Scenes 453
Using the Matrix Stack
Similar is the Mult Matrix command
Mult Matrix(m)
When the Mult Matrix command is issued, the matrix on the top of the current matrix stack is multiplied
by m.
The following matrices perform some simple commands.
Translation:
[1 0 0 x
0 1 0 y
0 0 1 z
0 0 0 1]
In the following rotation matrices, c = cos(angle) and s=sin(angle).
Rotation about x-axis:
[1 0 0 0
0 c -s 0
0 -s c 0
0 0 0 1]
Rotation about y-axis:
[c 0 s 0
0 1 0 0
-s 0 c 0
0 0 0 1]
Rotation about z-axis:
[c -s 0 0
s c 0 0
0 0 1 0
0 0 0 1]
For example, here are two equivalent (except for the translation being opposite) ways to translate and rotate
a display list.
// first way uses matrix
gl