[vtkusers] diplaying a 2d matrix

[WolfgangZillig]

Hello,

I'm a bit lost in all the possibilites vtk has. I want to display a 
1024x1024 matrix with ineger values as a graphic. I need to read the 
matrix from a binary file (more or less with basic python features).

My question now is how do I feed this matrix data into a vtk object. 
Which vtk data representation should I use? vtkDataSet, vtkIntArray?

Thanks for any help

Wolfgang