[Rtk-users] Wrapping python and json file : member image pointer

[Simon Rit]

Hi Fabien,
I can't say I master this but I had to do something similar in
FieldOfViewImageFilter.json
<https://github.com/SimonRit/RTK/blob/master/utilities/SimpleRTK/Code/BasicFilters/json/FieldOfViewImageFilter.json>.
Look at the "ProjectionsStack" parameter which is actually a 3D image. How
did I come up with such a complicated code? No clue, but SimpleITK has
similar ugly json files, e.g., LabelMapContourOverlayImageFilter.json
<https://github.com/SimpleITK/SimpleITK/blob/master/Code/BasicFilters/json/LabelMapContourOverlayImageFilter.json>.
My guess is that passing an image as a parameters in an itk image filter is
not so common...
I hope this helps,
Simon

On Fri, Jun 17, 2016 at 11:07 AM, Fabien Momey <fabien.momey at gmail.com>
wrote:

> Hi everyone,
>
> I need some help for updating a JSON file for the
> ConjugateGradientConeBeamReconstructionFilter.
>
> I want to test a new implementation I made on this filter to perform a
> support constraint for the reconstructed image.
>
> The constraint consists in a binary mask passed as an attribute. This
> attribute is a pointer to an image of type TOutputImage. The default value
> (in the constructor) is NULL.
>
> I don't know how to write it in the JSON file to wrap this member :
>
>  {
>       "name" : "SupportMask",
>       "type" : ?,
>       "default" : ?,
>       "briefdescriptionSet" : "",
>       "detaileddescriptionSet" : "",
>       "briefdescriptionGet" : "",
>       "detaileddescriptionGet" : ""
>    }
>
> Does it also need to perform a specific cast with the optional field
> custom_itk_cast ? I don't really understand how it works.
>
> Thanks in advance for your help.
>
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