Re: Center of Rotation

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Ran Yakir (rany++at++bvr.co.il)
Tue, 27 Aug 1996 07:56:05 +0000

> I am trying to set the center of rotation on a DCS. Can anyone help
> me?
>

Let's assume your center of rotation is in :
pfVec3 center;
and your DCS transformation is in
pfMatrix tmat;

...
pfMakeIdentMat (mat);
pfPreTransMat (mat, center[0], center[1], center[2], mat);
pfPreMultMat (mat, tmat);
pfPreTransMat (mat, -center[0], -center[1], -center[2], mat);
pfDCSMat (dcs, mat);

Ran

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