[vtkusers] Passing data between VTK and NumPy.

[Maurice van de Rijzen]

Dear all,
I'm using VTK to visualize 5D-data.
However, VTK cannot handle 5D-data. I thought I had a solution but there 
are still some things that I don't know how to solve.
I can put all the data of the 5D-data and the dimensions into a long 1D 
vtkStructuredPoints.
Later on I can reconstruct the 5D-dataset by using these dimensions.
This 1D vtkStructuredPoints can be used as input in an instance of 
vtkProgrammableFilter.
Using the SetExecuteMethod I want to implement a method to select some 
'3D-slices' of the 5D-dataset.
The wat I want to implement the slicing is by using NumPy(A fast 
Numerical Extension of python).
The problem is that I don't know how to get the data from the 
SetExecuteMethod into NumPy.
Afaik know NumPy can read from strings and files.

Do I need to convert the data into a string?
Is there a way to 'say' to NumPy where in memory the 5D-dataset starts?
Does someone has experience in using NumPy in combination with VTK?