[vtk-developers] vtkImageReslice constants

[David Gobbi]

Hi Carlos,

Quadratic interpolation is not requested often enough for it to be added
to the class, but I have at least fixed the class in cvs so that it won't
segfault anymore.

I can't change the constants (the class has been around for too long for
me to want to do that) so you will have to specifically set nearest-neighbor,
linear, and cubic rather than just incrementing the value.

 - David


On 8/25/07, Carlos Scheidegger <cscheid at sci.utah.edu> wrote:
> Hi,
>
>         Looking at the vtkImageReslice constants, I can't help but notice that
> they're not contiguous. I imagine the intent is that eventually there should be a
>
> #define VTK_RESLICE_QUADRATIC 2
>
> However, VTK simply segfaults if SetInterpolationMode(2) is called. This is
> somewhat inconvenient in my case, where I'd like to generate comparisons
> between all interpolation modes by directly iterating over all constants.
>
> Would it be possible to put some check on the dispatching functions
> (vtkGetResliceInterpFunc and vtkGetResliceSummationFunc) instead of returning
> NULL, so that either an error is raised or a default interpolation mode is
> chosen? It seems segfaulting is somewhat harsh in this case.
>
> Thanks very much,
> Carlos Scheidegger
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