Dear Daphné,
looks like this VTK-issue:
http://www.vtk.org/Wiki/VTK/VTK_6_Migration/Factories_now_require_defines .
We fixed this on Friday, October 28. 2016: https://phabricator.mitk.org/T20070 ,
git-commit 10bf4f18a76ba41a3079745b58a236523be6885e :
// add this to your mapper's header file to get rid of that nasty, unexpected
nullptr:
#include <vtkAutoInit.h>
VTK_MODULE_INIT(vtkRenderingVolumeOpenGL);
// or add:
find_package(VTK)
// and:
include(${VTK_USE_FILE})
// to the corresponding CMakeLists.txt .
Alternatively you could try using the GPU volume renderer by setting
volumerendering.usegpu to true.
Hope that helps,
Mit freundlichen Grüßen / Kind regards,
________________________________________
Martin Hettich
DKFZ-Juniorgruppe Medizinische Bildverarbeitung
Student
Deutsches Krebsforschungszentrum
Stiftung des öffentlichen Rechts
Im Neuenheimer Feld 280
69120 Heidelberg
Tel: +49 6221 42-3546
Fax: +49 6221 42-2345
m.hett...@dkfz.de
www.dkfz.de/de/medizinische-bildverarbeitung
Vorstand: Prof. Dr. Michael Boutros (komm.), Prof. Dr. Josef Puchta
USt-ID: DE143293537
________________________________________
Martin Hettich
DKFZ Junior Group Medical Image Computing
Student
German Cancer Research Center (DKFZ)
Foundation under Public Law
Im Neuenheimer Feld 280
69120 Heidelberg
Germany
phone: +49 6221 42-3546
fax: +49 6221 42-2345
m.hett...@dkfz.de
http://www.dkfz.de/en/medizinische-bildverarbeitung
Management Board: Prof. Dr. Michael Boutros (interim), Prof. Dr. Josef Puchta
VAT-ID No.: DE143293537
________________________________________
________________________________________
Von: Daphné Wallach [daphne.wall...@hrv-simulation.com]
Gesendet: Mittwoch, 9. November 2016 10:38
An: mitk-users@lists.sourceforge.net
Betreff: [mitk-users] Volume rendering
Dear Mitk users,
I am working on an application using Mitk as a library. For technical
reasons, I had to use an existing framework and could not develop an
Mitk module or plug-in.
The aim of the application is to load a DICOM image and segment it.
I am facing an issue with volume rendering: I would like the
segmentation volume to be visible in 3D, and updated in real time
(similarly to what exists in the workbench).
Looking into the MITK code, I thought I could simply create a mapper and
assign it to my data node, but this crashes the code with the following
message:
"Exception caught: reading access violation.
this->ImageDisplayHelper was nullptr."
The offending line is in the file vtkFixedPointVolumeRayCastMapper.cxx,
l717:
"this->ImageDisplayHelper->PreMultipliedColorsOn();".
Below is a snippet of my code:
// Created a node called totalDataNode, added it to the datastorage
mitk::Mapper::Pointer totalMapper;
totalMapper = mitk::GPUVolumeMapper3D::New();
totalMapper->SetDefaultProperties(totalDataNode);
totalMapper->SetDataNode(totalDataNode);
totalDataNode->SetMapper(2, totalMapper);
totalDataNode->SetProperty("volumerendering",
mitk::BoolProperty::New(true));
totalDataNode->SetProperty("volumerendering.uselod",
mitk::BoolProperty::New(true));
totalDataNode->SetProperty("volumerendering.usegpu",
mitk::BoolProperty::New(false));
totalDataNode->SetProperty("volumerendering.useray",
mitk::BoolProperty::New(false));
totalDataNode->SetProperty("volumerendering.usemip",
mitk::BoolProperty::New(false));
The line
totalDataNode->SetProperty("volumerendering",
mitk::BoolProperty::New(true));
triggers the error.
Does anybody know of the correct way to create and use a mapper? I would
greatly appreciate any help.
Thanks in advance!
Daphné
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