[ITK-users] itk::RayCastInterpolateImageFunction for ITK Python Wrap

Michka Popoff michkapopoff at gmail.com
Mon Mar 28 05:58:16 EDT 2016 

I just looked at our buildbots, this problem is also popping up here:
https://open.cdash.org/viewBuildError.php?buildid=4297981

The errors are similar. We will have to fix them.

Matt, do you have an idea what that could be ?
I will not have time to setup a Windows build anytime soon.

Michka


> On 27 Mar 2016, at 21:41, D'Isidoro Fabio <fisidoro at ethz.ch> wrote:
> 
> Thank you. 
> 
> I downloaded ITK with Git from: http://www.itk.org/Wiki/ITK/Git and built it with Visual Studio and the ITK_WRAP_PYTHON option (I had one this procedure many times already before). Unfortunately my build (8 hours on my laptop, without BUILD_EXAMPLES) was unsuccessful. Apparently there are mistakes related to itk:NumericTraits (see below a part of it):
> 
> ...
> $NumericTraits at H@itk@@2HB) already defined in itkAbsImageFilterPython.obj
> 503>ITKCommon-4.10.lib(itkNumericTraits.obj) : error LNK2005: "public: static unsigned int const itk::NumericTraits<unsigned int>::Zero" (?Zero@?$NumericTraits at I@itk@@2IB) already defined in itkAbsImageFilterPython.obj
> 503>ITKCommon-4.10.lib(itkNumericTraits.obj) : error LNK2005: "public: static unsigned int const itk::NumericTraits<unsigned int>::One" (?One@?$NumericTraits at I@itk@@2IB) already defined in itkAbsImageFilterPython.obj
> 503>ITKCommon-4.10.lib(itkNumericTraits.obj) : error LNK2005: "public: static long const itk::NumericTraits<long>::Zero" (?Zero@?$NumericTraits at J@itk@@2JB) already defined in itkAbsImageFilterPython.obj
> 503>ITKCommon-4.10.lib(itkNumericTraits.obj) : error LNK2005: "public: static long const itk::NumericTraits<long>::One" (?One@?$NumericTraits at J@itk@@2JB) already defined in itkAbsImageFilterPython.obj
> 503>ITKCommon-4.10.lib(itkNumericTraits.obj) : error LNK2005: "public: static bool const itk::NumericTraits<bool>::Zero" (?Zero@?$NumericTraits at _N@itk@@2_NB) already defined in itkAbsImageFilterPython.obj
> 503>ITKCommon-4.10.lib(itkNumericTraits.obj) : error LNK2005: "public: static bool const itk::NumericTraits<bool>::One" (?One@?$NumericTraits at _N@itk@@2_NB) already defined in itkAbsImageFilterPython.obj
> 503>ITKCommon-4.10.lib(itkNumericTraits.obj) : error LNK2005: "public: static unsigned long const itk::NumericTraits<unsigned long>::Zero" (?Zero@?$NumericTraits at K@itk@@2KB) already defined in itkAbsImageFilterPython.obj
> 503>ITKCommon-4.10.lib(itkNumericTraits.obj) : error LNK2005: "public: static unsigned long const itk::NumericTraits<unsigned long>::One" (?One@?$NumericTraits at K@itk@@2KB) already defined in itkAbsImageFilterPython.obj
> 503>     Creating library C:/Users/difabio/ITK_49_Wrap/lib/Release/ITKImageIntensityPython.lib and object C:/Users/difabio/ITK_49_Wrap/lib/Release/ITKImageIntensityPython.exp
> 503>C:\Users\difabio\ITK_49_Wrap\lib\Release\_ITKImageIntensityPython.pyd : fatal error LNK1169: one or more multiply defined symbols found
> 529>------ Build started: Project: ALL_BUILD, Configuration: Release Win32 ------
> 529>  Building Custom Rule C:/Users/difabio/ITK/CMakeLists.txt
> 529>  CMake does not need to re-run because C:\Users\difabio\ITK_49_Wrap\CMakeFiles\generate.stamp is up-to-date.
> ========== Build: 452 succeeded, 77 failed, 0 up-to-date, 0 skipped ==========
> 
> 
> In my Cmake build configuration, I remember I added the data type "double" and maybe also "unsigned float" to the standard ones. May this be the problem?
> 
> Any help would be appreciated. Thanks.
> 
> -----Original Message-----
> From: Michka Popoff [mailto:michkapopoff at gmail.com] 
> Sent: Sonntag, 27. März 2016 11:20
> To: Matt McCormick
> Cc: D'Isidoro Fabio; insight-users at itk.org
> Subject: Re: [ITK-users] itk::RayCastInterpolateImageFunction for ITK Python Wrap
> 
> Patch has been merged. You should now be able to use it.
> Thanks Matt for the quick review.
> 
> Michka
> 
>> On 27 Mar 2016, at 03:59, Matt McCormick <matt.mccormick at kitware.com> wrote:
>> 
>> Hi,
>> 
>> Here are some pointers to relevant documentation:
>> 
>> How to add wrapping for a filter:
>> http://itk.org/ITKSoftwareGuide/html/Book1/ITKSoftwareGuide-Book1ch9.h
>> tml#x50-1500009.5
>> 
>> How to perform a review:
>> https://insightsoftwareconsortium.github.io/ITKBarCamp-doc/CommunitySo
>> ftwareProcess/PerformAGerritReview/index.html
>> 
>> How to download ITK with Git: http://www.itk.org/Wiki/ITK/Git
>> 
>> Hope this helps,
>> Matt
>> 
>> On Sat, Mar 26, 2016 at 2:41 PM, Michka Popoff <michkapopoff at gmail.com> wrote:
>>> I can notify you once it is merged to the master branch of ITK.
>>> This should be fast (as soon as it gets reviewed).
>>> 
>>> Wrapping new functions/classes is made by adding a .wrap file in the 
>>> corresponding “wrapping" folder of the module.
>>> I often just copy-paste a similar .wrap file an adapt it. There are 
>>> sometimes some surprise, and the .wrap file needs to be tweaked.
>>> 
>>> Not sure if we have a guide on how to do it.
>>> Some cases like this one are really easy to implement, some others 
>>> are more involved.
>>> 
>>> Once the patch is merged, you will need to build ITK from source.
>>> This is pretty easy: 
>>> http://www.itk.org/Wiki/ITK/Configuring_and_Building
>>> We can assist you if there are problems.
>>> 
>>> Writing your own filter in Python is doable; but I never tried such thing.
>>> It would be a nice proof-of-concept to get something like this to run.
>>> But this is probably more work than it is worth.
>>> 
>>> If you can wait a few days until the patch is merged, and are willing 
>>> to build ITK from source, the python solution is probably the easiest.
>>> 
>>> Michka
>>> 
>>> 
>>> On 26 Mar 2016, at 19:27, D'Isidoro Fabio <fisidoro at ethz.ch> wrote:
>>> 
>>> Thank you for your reply.
>>> 
>>> I miss the skills to test/review that patch. I do not know how to 
>>> wrap a C++ code to Python. Is there any relatively easy guide for it?
>>> 
>>> Also, what are my possibilities now? Writing my own RayCasting Filter 
>>> in Python and possibly use it as interpolator for the 
>>> ResampleImageFilter Filter? Or necessarily turn to C++ forgetting about Python?
>>> 
>>> Thanks
>>> 
>>> From: Michka Popoff [mailto:michkapopoff at gmail.com]
>>> Sent: Samstag, 26. März 2016 19:16
>>> To: D'Isidoro Fabio
>>> Cc: insight-users at itk.org
>>> Subject: Re: [ITK-users] itk::RayCastInterpolateImageFunction for ITK 
>>> Python Wrap
>>> 
>>> Hi
>>> 
>>> The function was not wrapped at all.
>>> Most of them are, and the remaining are added slowly, mostly 
>>> on-demand (for the moment).
>>> 
>>> I made a patch which you can test/review here:
>>> http://review.source.kitware.com/#/c/20945/
>>> 
>>> We can probably add it to the 4.9.1 release; else it will land in the 
>>> ITK
>>> 4.10 release.
>>> 
>>> Michka
>>> 
>>> 
>>> On 26 Mar 2016, at 17:13, D'Isidoro Fabio <fisidoro at ethz.ch> wrote:
>>> 
>>> Hallo,
>>> 
>>> I am trying to implement my own Digital Radiograph Reconstruction 
>>> algorithm with ITK v 4.8 Python Wrap. I have looked on the web and 
>>> found examples that make use of the 
>>> itk::RayCastInterpolateImageFunction. However, it seems that this function has not been wrapped for Python because I get the error:
>>> 
>>> ‘LazyITKModule’ object has not attribute ‘RayCastInterpolateImageFunction’
>>> 
>>> Any help? Hast this been done in the new 4.9 Version or what do you 
>>> suggest for me to do?
>>> 
>>> Thank you.
>>> 
>>> Fabio
>>> 
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