[vtkusers] Extracting a Slice from a volume in different orientation

[Amy Henderson]

At 06:21 PM 7/17/2002 +0530, cspl wrote:
>Dear Friends,
>
>How to extract an Image from a volume in orientations 
>sagital(height),coronal(volwidth),transverse(depth). Is there any suitable 
>class or method in VTK.
>
>Thanking you,
>
>Regards,
>Ramakrishna

Try using vtkImageClip.  Use the SetOutputWholeExtent method that takes 6 
parameters (min and max in each of X, Y, and Z directions).  To extract a 
slice in a particular direction, set the min and max values for that 
dimension to be the same value (the slice number you want).  For example, 
if your data has dimensions 128 x 128 x 30, and you want to extract slice 
50 in X, call SetOutputWholeExtent(50, 50, 0, 127, 0, 29).

- Amy
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