Re: DOF transformation ordering

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Christopher R Volpe (volpe++at++ash.crd.ge.com)
Tue, 11 Mar 1997 08:41:02 -0500


Marcus Barnes wrote:
>
> Translations and scales are straightforward. The order of rotations in
> a DOF is identical to Performer's heading, pitch and roll rotations that
> are encapsulated in a pfCoord (these are referred to as Euler angles).
> The only difference may be the terminology. Older versions of MultiGen
> used the terms twist, azimuth and inclination to denote heading, pitch
> and roll respectively in Performer.

You sure about the "respectively" part? It sounds to me that twist
probably corresponds to roll (not heading), azimuth corresponds to
heading (not pitch), and inclination corresponds to pitch (not roll).
But I'm just guessing...

--

Chris Volpe Phone: (518) 387-7766 GE Corporate R&D Fax: (518) 387-6560 PO Box 8 Email: volpecr++at++crd.ge.com Schenectady, NY 12301 Web: http://www.crd.ge.com/~volpecr ======================================================================= List Archives, FAQ, FTP: http://www.sgi.com/Technology/Performer/ Submissions: info-performer++at++sgi.com Admin. requests: info-performer-request++at++sgi.com


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