Hello list,
the problem seems to be solved. I originally used a real VTK pipeline
after loading the image. Then VTK complained about the NULL data at the
beginning of the pipeline. Now I am using the mitk::ImageToSurfaceFilter
instead which I reckon does basically the same like my VTK pipeline but
does not complain about the data and I am able to display it. I am a bit
puzzled here, but it seems to work in the end.
Cheers, Marcel
Marcel Schenderlein schrieb:
> Hello list,
>
> first of all I want to give some props to the MITK makers for the new
> release. The new features look promising. I came back to MITK after a
> while of doing other work.
>
> After compiling my application with the new MITK (0.9.3) I ran into a
> problem though.
>
> Loading a VTK file (VTK Dataset Structured Points, I attached the header
> at the end of the mail) does not seem to work correctly. The image is
> just a segmented volume with 0s, 1s and 2s. I am doing the following
> (which worked with the older MITK):
>
> // -- try to read the file
> mitk::DataTreeNodeFactory::Pointer reader =
> mitk::DataTreeNodeFactory::New();
> try {
> reader->SetFileName(filename.ascii());
> reader->Update();
> } catch(...) {
> // some error handling...
> return;
> }
>
> // -- open segmentation image
> mitk::Image::Pointer segmentationImage =
> dynamic_cast<mitk::Image*>(reader->GetOutput()->GetData());
>
> if (segmentationImage.IsNull()) {
> // some more error handling... is not reached in this case!!!
> return;
> }
>
>
> The strange thing is that I do get a segmentationImage which is not
> null. In debug mode I can see that the segmentationImage contains all
> the correct dimension, spacing, etc. information, simply the image data
> is missing (segmentationImage.m_CompleteData.m_Pointer=0x000000). This
> naturally produces errors further down the pipeline.
>
> Notice that when I use the Open dialog of the MainApp loading works
> perfectly!
>
> Any ideas what is going on here? Thanks in advance!
>
> Cheers, Marcel
>
>
>
>
>
> # vtk DataFile Version 3.0
> VTK File Generated by Insight Segmentation and Registration Toolkit (ITK)
> BINARY
> DATASET STRUCTURED_POINTS
> DIMENSIONS 256 256 100
> SPACING 1.0000000000000000e+000 1.0000000000000000e+000
> 1.0000008344650269e+000
> ORIGIN -1.2708883666992188e+002 -5.5723289489746094e+001
> 1.3431561279296875e+002
> POINT_DATA 6553600
> SCALARS scalars unsigned_char 1
> LOOKUP_TABLE default
>
>
>
>
--
---------------------------------------------
Dipl.-Ing. Marcel Schenderlein
Institute of Measurement, Control and Microtechnology
Ulm University
Albert Einstein Allee 41
89081 Ulm, Germany
Phone: +49 (0) 731 50 26338
FAX: +49 (0) 731 50 26301
Mobile: +49 (0) 176 217 33668
Email: [EMAIL PROTECTED]
web: http://www.uni-ulm.de/in/mrm
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