[vtkusers] c api and python and vtk

[rharder at uiuc.edu]

Hi,
I have a problem.  It's probably easy, but the available
documentation is not making it obvious.

I have a set of C codes that manipulate a data structure, one
component of which is an array of doubles.  I've managed to
wrap the C codes with SWIG so I have access to the structure
with the typical SWIG accessor functions, i.e. Sp4Array_data_get()
What do I have to do to get this data array into vtk?
data is declared within the structure as double* data.

I would like to avoid using Numarray or Numeric,  I think I 
should write a short C++ function to move the data to a
vtk datatype and the pass it back to python to impliment the
visualization.  How do I do that, assuming that is what's needed?
I don't get how my C++ instantiation of a vtk datatype is 
passed back to a python instantiation of the same type.

I may not be able to see the forest for the trees, this is my
first forray into python and vtk.  Thanks in advance for any
help you can offer.

Ross