[vtkusers] Segmentation fault when trying to export a vtk mesh

[Cory Quammen]

You haven't called writer->SetFileName() to specify where the file
should be saved. That is necessary and may fix your crash - though
there should be a more graceful approach to handling an empty file
name than crashing, so that may not be it.

HTH,
Cory

On Thu, May 21, 2015 at 3:34 AM, Luc Valade <lucj.valade at gmail.com> wrote:
> Hi,
>
>
>
> I have a problem with the export of vtk meshes using vtkXMLWriter class.
> Indeed, my project builds without any problem, but during the run, the call
> of the vtkXMLWriter method Write() generates a segmentation fault.
>
>
>
> I works on Windows and uses qtcreator and qmake. I uses the version 6.2 of
> vtk. I've already build tutorial vtk projects using qmake to learn how to
> well linked projects to vtk dlls, and it worked well.
>
>
>
> Here is the projet I tried to run without success (.pro and main.cpp file)
>
>
>
> TEMPLATE = app
>
>
>
> CONFIG += console
>
> CONFIG -= app_bundle
>
> CONFIG -= qt
>
>
>
> SOURCES += main.cpp
>
>
>
> INCLUDEPATH += "C:\Program Files (x86)\VTK\include\vtk-6.2"
>
> LIBS += "-LC:\Program Files (x86)\VTK\lib"
>
> LIBS += -lvtkCommonDataModel-6.2.dll \
>
>         -lvtkCommonCore-6.2.dll \
>
>         -lvtkIOXML-6.2.dll
>
>
>
>
>
> #include <vtkVersion.h>
>
> #include <vtkCellArray.h>
>
> #include <vtkPoints.h>
>
> #include <vtkXMLPolyDataWriter.h>
>
> #include <vtkPolyData.h>
>
> #include <vtkSmartPointer.h>
>
>
>
> int main ( int, char *[] )
>
> {
>
>   // Create 10 points.
>
>   vtkSmartPointer<vtkPoints> points =
>
>     vtkSmartPointer<vtkPoints>::New();
>
>
>
>   for ( unsigned int i = 0; i < 10; ++i )
>
>     {
>
>     points->InsertNextPoint ( i, i, i );
>
>     }
>
>
>
>   // Create a polydata object and add the points to it.
>
>   vtkSmartPointer<vtkPolyData> polydata =
>
>     vtkSmartPointer<vtkPolyData>::New();
>
>   polydata->SetPoints(points);
>
>
>
>   // Write the file
>
>   vtkSmartPointer<vtkXMLPolyDataWriter> writer =
>
>     vtkSmartPointer<vtkXMLPolyDataWriter>::New();
>
>   writer->SetFileName("test.vtp");
>
> #if VTK_MAJOR_VERSION <= 5
>
>   writer->SetInput(polydata);
>
> #else
>
>   writer->SetInputData(polydata);
>
> #endif
>
>
>
>   // Optional - set the mode. The default is binary.
>
>   //writer->SetDataModeToBinary();
>
>   //writer->SetDataModeToAscii();
>
>
>
>   writer->Write();
>
>
>
>   return EXIT_SUCCESS;
>
> }
>
>
> Thanks in advance for any help.
>
>
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-- 
Cory Quammen
R&D Engineer
Kitware, Inc.