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Rotation of an IDLgrPolygon about a user specified axis [message #36763] Thu, 16 October 2003 22:38
Beat.Schmutz is currently offline  Beat.Schmutz
Messages: 6
Registered: October 2003
Junior Member
Dear all,

If have generated an IDLgrPolygon model (200000+ vertices) of a bone.
I have centred the data so that the model is displayed in the centre
of the view/window. What I would like to do now is to rotate the model
about the long axis of the bone. This axis passes roughly through the
centre of the bone's shaft and will not lay in the middle of any of
the xyz data ranges, otherwise I could just do
oModel -> ROTATE. Once I have determined the equation of this axis
(utilising data coordinates returned by �pickData' in the draw_Event
handler) how can I then rotate the model around this axis?

Many thanks.

Beat

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