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From: koblas@mips.COM (David Koblas)
Newsgroups: comp.graphics
Subject: Rotation Matries
Message-ID: <40050@mips.mips.COM>
Date: 11 Jul 90 02:31:52 GMT
Sender: news@mips.COM
Reply-To: koblas@mips.COM (David Koblas)
Organization: MIPS Computer Systems, Sunnyvale, CA
Lines: 22


This is a simple problem that I've spent far too long on.  

Given an arbitrary rotation matrix M, what combonation of three
rotation matries can generate M.  i.e

	Ry Rx Rz = M

Thus what I'm interested in is the angle theata for each of those
rotation matries.  What this has to do with is that I've done
an arbitrary number of RxRy's to generate M, and now I need to
figure out a way to decompose and regenerate M as a set of 
three angles (Longitude, Latitude and Twist).

Any ideas, would be appreciated.  And CODE would be celebrated with
champagne..  

-- 
name : David Koblas                        domain: koblas@cs.uoregon.edu
place: Nowhere, I'm just an AI batch job.  domain: koblas@mips.com
quote: "Time has little to do with         domain: koblas@riacs.edu
	infinity and jelly donuts."        domain: koblas@stellar.arc.nasa.gov