p.s., Re: Demo for screen locked renderer.

[Bill Hibbard <billh@ssec.wisc.edu>]

On Thu, 22 May 2003, Bill Hibbard wrote:

> Note that the linear maps for XAxis, YAxis and ZAxis all
> have different scales, so the matrix that undoes the
> *change* in the ScalarMap linear mappings needs to have
> 3 scales (these are the first 3 diagonal elements in the
> matrix) and 3 translations.

The first 3 diagonal elements are axis scales only in
a rotationless matrix (i.e., all other elements of the
upper left 3x3 submatrix are 0.0).