Numeric question, putting one matrix into another

[Konrad Hinsen]

Jorn Verwey <jorn.verwey at psi.ch> writes:
> Using Numeric-arrays I have made a (3x3) rotation-matrix. Now I would like to put this rotation
> matrix in a (4x4) transformation matrix.

That's easy:

   rotation = Numeric.zeros((3,3), Numeric.Float)
   transformation = Numeric.zeros((4,4), Numeric.Float)

   transformation[:3, :3] = rotation

BTW, you might be interested in the module
Scientific.Geometry.Transformation, which is part of Scientific Python
(http://starship.python.net/crew/hinsen/scientific.html). It handles
linear transformations with some added luxury.
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