In article <slr### [at] fwicom>, ron### [at] povrayorg 
wrote:

> You might be surprised.  Except for the arbitrary transforms (which 
> make the problem different, but possibly not much more difficult) 
> it's relatively easy to decompose a matrix into rotations, scales, 
> and translates.  I wrote the whole mess up for someone in c.g.r.r. a 
> few years ago; I think I might still have it in my outbox.

But can you decompose the matrix into the *same* set of transforms which 
produced it?
My understanding is that there are often an infinite number of 
solutions. Getting the "orientation" might be useful, but what else 
would be possible?

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

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