[Insight-developers] InterpolateImageFunction and Threads

[kent williams]

Hi. I'm working on enhancing the WarpImageFilter to work with
DeformationFields with resolution/spacing different than the output image
size.

To do this I am using itk::VectorLinearInterpolateImageFunction, to get a
deformation field at a particular physical point, rather than simply using
an ImageRegionIterator.

My question is this: The most natural thing to do is to instantiate the
interpolater right before where it's used, in ThreadedGenerateData.  But
this means it will get created/destroy for each thread.

Can I create one interpolater in BeforeThreadedGenerateData, and use it in
all threads? It looks like it's thread safe.



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