[vtkusers] Help creating a vtkImageData object using Python

[Pieper, Chris]

I am a beginner vtk user and would like to generate a vtkImageData
object using Python code.  I have the data that I want to insert into
the object available as Python objects, but don't know how to insert
them into the vtkImageData object.  I saw something in the archives
about using vtkImageImport to do this, but I don't understand the
implementation...

I'm starting with an example from the user's guide:

#! /usr/local/bin/vtkpython
import vtk

NL=Na=Nb=10

size=[NL,Na,Nb]
id=vtk.vtkImageData()
id.SetDimensions(NL,Na,Nb)
id.SetScalarTypeToUnsignedShort()
id.SetNumberOfScalarComponents(1)
id.AllocateScalars()


This much  works, but I don't know how to insert the scalars... The
example uses a C++ pointer to do this, can it be done within Python?

Also, my image data is a structured volume with RGB values at each
location.  Since the space represents different colors (I'm visualizing
colors), each location has a unique RGB value.  Can I use a 3 component
scalar value at each volume coordinate or do I need to create a LUT?

Thanks for any help you may offer.  I apologize if my terminology
doesn't make sense...  

Chris

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