[vtkusers] VtkImageReslice on a vktImageData with multiple arrays, array selection problem

[Knut Eric Jelden]

Hi everybody,

I have a vtkImageData with an array of PointData:
vtkImageData *image......
int numberOfResultsForPointData =
image->GetPointData()->GetNumberOfArrays();
where numberOfResultsForPointData > 1 in my case.

I want to reslice the image by vtkImageReslice using:
vtkImageReslice *reslice = vtkImageReslice::New();
reslice->SetOutputDimensionality(2);
reslice->SetResliceAxes(.....)
reslice->SetInput(image);

The result of the rendering process gives me a slice of image's first point
data.

I was trying to solve the problem by setting an active scalar or vector
field (which I have both), but it was not giving me the wished result. Also
I was playing around with vtkAlgorithm::SetInputArrayToProcess(), which was
either not having any effect, or I was using it in a wrong way.

So, how to change the point data array which is used by the reslicer?

Thanks for your help,
Knut
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