Re: A89: Re: 3D rotation of plots
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Re: A89: Re: 3D rotation of plots
So how would I do this without matricies? Just rotating around one axis is easy, but how would I
rotate around two axises? (sp?)
-Miles Raymond EML: m_rayman@bigfoot.com
ICQ: 13217756 IRC: Killer2 AIM: MRayMan
http://www.bigfoot.com/~m_rayman/
-----Original Message-----
From: Nate Mueller <nlmueller@students.wisc.edu>
To: assembly-89@lists.ticalc.org <assembly-89@lists.ticalc.org>
Date: Wednesday, January 13, 1999 7:01 PM
Subject: Re: A89: Re: 3D rotation of plots
>>x'=1*x + cosT*x + 0*y + 0*y + 0*z + sinT*z
>>y'=0*x + 0*x + cosR*y + 1*y + sinR*z + 0*z
>>z'=0*x + -sinT*x + -sinR*y + 0*y + cosR*z + cosT*z
>
>No it wouldn't work. You are applying both rotations to the origional
>coords and then adding the two results. You need to perform the second
>rotation to the result of the first. The addition only works with matrixs.
>
> --Nate
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