From: Edward Lyman (
Date: Tue Oct 28 2008 - 11:39:42 CDT

Hi all,

I am looking for an explicit definition of the 4x4 matrix that is is used to
'move' a selection. e.g., lets say I just want to rotate a selection by 30
degrees around the y axis. z_new = sin(30)x_old + cos(30) z_old...but which
matrix elements are which? and what's up with the extra row and column?
somehow they must correspond to translations...