[vtkusers] Copy from vtkImageData to array

[Michael Xanadu]

Hi,

I have got a vtkImageData filled with 3-dimensional CT data. Now I'm doing
this:

vtkUnsignedCharArray *arr =
vtkUnsignedCharArray::SafeDownCast(image->GetPointData()->GetScalars());

This copies the 3-dimensional image data into a 1-dimensional array. But of
course, now I don't know which index of the array I should address if I want
to get an element with former coordinates (x,y,z). In other words, what
principle was used to copy the data from the vtkImageData to the array?


Regards, Michael
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