[Rtk-users] Problem with rtkGgoFunctions when importing series of images

[Simon Rit]

Hi Thibault,
SetProjectionsReaderFromGgo is a macro designed for the
rtk::ProjectionsReader
<http://www.openrtk.org/Doxygen/classrtk_1_1ProjectionsReader.html>, I'm
not surprised that it does not work with the itk::ImageSeriesReader. It's
not about the image type but about the filter type... We use this macro to
set many parameters specific to the rtk::ProjectionsReader
<http://www.openrtk.org/Doxygen/classrtk_1_1ProjectionsReader.html>. Since
a while, I have made have a common rtkinputprojections_section.ggo
<https://github.com/SimonRit/RTK/blob/master/applications/rtkinputprojections_section.ggo>
file for all the applications that use the rtk::ProjectionsReader.
If you don't want to use the rtk::ProjectionsReader but
itk::ImageSeriesReader (e.g., because it does a lot of automatic processing
that you don't want), you'll have to write your own code to set it up.
I hope this clarifies things.
Simon

On Mon, Nov 2, 2015 at 2:08 PM, Notargiacomo Thibault <gnthibault at gmail.com>
wrote:

> I recently experienced the following problem, when importing multiple tif
> files inside a directory using itk::ImageSeriesReader:
>
> [...]
> code/rtkGgoFunctions.h: In instantiation of ‘void
> rtk::SetProjectionsReaderFromGgo(typename TProjectionsReaderType::Pointer,
> const TArgsInfo&)
> [...]
> code/rtkGgoFunctions.h:121:61: error: no type named
> ‘OutputImageDirectionType’ in ‘class
> itk::ImageSeriesReader<itk::Image<short unsigned int, 3u> >’
>    typename TProjectionsReaderType::OutputImageDirectionType direction;
> [...]
>
> It seems that, a new functionality added in rtkGgoFunctions.h
> (19/05/2015), allowing to directly modify input images properties through
> command line, like geometry (direction vector), assumes that the input
> image type defines OutputImageDirectionType, but in the case of
> itk::ImageSeriesReader, it does not.
>
> Is this considered as a regression, or should the
> SetProjectionsReaderFromGgo function be used with specific input image type
> ?
>
> Thank you in advance for your help.
>
> Kind regards
>
> Thibault Notargiacomo
>
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