hi,

as a part of a process I calculate two random-ish 3d points which are the base
and cap centres of a cylinder.  I now want to transform the cylinder such that
the base is at origin and the Y axis is the centre axis.  after adding some
points relative to the centre axis, I need to transform the cylinder back to its
original position.

as the cylinder is "oriented", I cannot fathom how/where to get "my angles" wrt
the POV-Ray "world" axes.  can someone please take me through a worked example,
or point out a good www resource?  tia.


regards, jr.

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