[vtkusers] Error using vtkXMLMultiBlockDataWriter

Thu Jun 3 15:36:27 EDT 2010

Same issue here, vtk 5.6, linux.

Dominik

On Thu, Jun 3, 2010 at 3:32 PM, Adriano Gagliardi <agagliardi at ara.co.uk>wrote:

>
> Unfortunately, it's in serial. I tried it out with a simple piece of code
> (mostly taken from the VTK Examples page) and the same thing happened. The
> version of VTK was the one supplied in the ParaView-3.8.0-RC2, but I'll try
> with the official release to see if there is any difference. If anyone else
> has this working, I'd be interested in seeing an example.
>
> =========================================================================
> mbwritertest.cxx:
> =========================================================================
> #include <sstream>
>
> #include <vtkSphereSource.h>
> #include <vtkPolyData.h>
> #include <vtkMultiBlockDataSet.h>
> #include <vtkXMLPolyDataWriter.h>
> #include <vtkXMLMultiBlockDataWriter.h>
> #include <vtkSmartPointer.h>
>
> int main(int, char *[])
> {
>  vtkSmartPointer<vtkMultiBlockDataSet> MBPolyData =
>    vtkSmartPointer<vtkMultiBlockDataSet>::New();
>  MBPolyData->SetNumberOfBlocks(4);
>
>  for ( vtkIdType currBlk = 0; currBlk != MBPolyData->GetNumberOfBlocks();
> ++currBlk ) {
>
>    //Create a sphere.
>    vtkSmartPointer<vtkSphereSource> sphereSource =
>      vtkSmartPointer<vtkSphereSource>::New();
>    sphereSource->SetCenter(currBlk, 0.0, 0.0);
>    sphereSource->SetRadius(5.0);
>    sphereSource->Update();
>
>    vtkSmartPointer<vtkPolyData> poly = sphereSource->GetOutput();
>
>    MBPolyData->SetBlock(currBlk, poly);
>
>    //Write the PolyData to file
>    std::ostringstream ss;
>    ss << "sphere" << currBlk+1 << ".vtp";
>    vtkSmartPointer<vtkXMLPolyDataWriter> writer =
>      vtkSmartPointer<vtkXMLPolyDataWriter>::New();
>    writer->SetInput(poly);
>     writer->SetFileName(ss.str().c_str());
>     writer->Write();
>  }
>
>  //Write the MultiBlockData with PolyData to file
>  vtkSmartPointer<vtkXMLMultiBlockDataWriter> writer2 =
>    vtkSmartPointer<vtkXMLMultiBlockDataWriter>::New();
>  writer2->SetInput(MBPolyData);
>  writer2->SetFileName("all-spheres-PD.vtm");
>  writer2->Write();
>
>  return EXIT_SUCCESS;
> }
>
> =========================================================================
> CMakeLists.txt:
> =========================================================================
> cmake_minimum_required(VERSION 2.6)
>
> PROJECT (MBWriterTest)
>
> INCLUDE (${CMAKE_ROOT}/Modules/FindVTK.cmake)
> IF (USE_VTK_FILE)
>  INCLUDE(${USE_VTK_FILE})
> ENDIF (USE_VTK_FILE)
>
> LINK_LIBRARIES(
>  vtkHybrid
> )
>
> ADD_EXECUTABLE(mbwritertest mbwritertest.cxx)
>
>
> ===================================
>
> Adriano Gagliardi MEng PhD
> Business Sector Leader
> Computational Aerodynamics
> Aircraft Research Association Ltd.
> Manton Lane
> Bedford
>
> Tel: 01234 32 4644
> E-mail: agagliardi at ara.co.uk
> Url: www.ara.co.uk
> -----Original Message-----
> From: Berk Geveci [mailto:berk.geveci at kitware.com]
> Sent: 03 June 2010 13:20
> To: agagliardi at ara.co.uk
> Cc: vtkusers at vtk.org
> Subject: Re: [vtkusers] Error using vtkXMLMultiBlockDataWriter
>
> Is this in parallel by any chance?
>
> On Wed, Jun 2, 2010 at 10:52 AM, Adriano Gagliardi <agagliardi at ara.co.uk>
> wrote:
> >
> > Just to say that this was using VTK 5.6.0.
> >
> > ===================================
> >
> > Adriano Gagliardi MEng PhD
> > Business Sector Leader
> > Computational Aerodynamics
> > Aircraft Research Association Ltd.
> > Manton Lane
> > Bedford
> >
> > Tel: 01234 32 4644
> > E-mail: agagliardi at ara.co.uk
> > Url: www.ara.co.uk
> > -----Original Message-----
> > From: vtkusers-bounces at vtk.org [mailto:vtkusers-bounces at vtk.org] On
> > Behalf Of Adriano Gagliardi
> > Sent: 01 June 2010 17:50
> > To: vtkusers at vtk.org
> > Subject: [vtkusers] Error using vtkXMLMultiBlockDataWriter
> >
> >
> > Dear Users,
> >
> > I have been having an issue with the vtkXMLMultiBlockDataWriter class
> > that contain instances of vtkPolyData. The code follows. Note that
> > this same piece of code works fine if the data within the blocks is of
> > type
> > vtkUnstructuredGrid:
> >
> > ####
> > //mbdata is a pointer to a vtkMultiBlockDataSet containing either
> > vtkPolyData or vtkUnstructuredGrid data sets
> > vtkXMLMultiBlockDataWriter* writer =
> > vtkXMLMultiBlockDataWriter::New();
> > std::ostringstream ss;
> > ss << "debugFiles/data_out.vtm";
> > writer->SetFileName(ss.str().c_str());
> > writer->SetInput(mbdata);
> > writer->Write();
> > writer->Delete();
> > ss.str(std::string());
> > ####
> >
> > When using this, I get the following error message:
> >
> > ####
> > ERROR: In
> > /usr/people/gagliard/Paraview/FILES/VTK5.6/VTK/IO/vtkXMLWriter.cxx,
> > line 607 vtkXMLPolyDataWriter (0x13473b00): Error opening output file
> "debugFiles"
> >
> > ERROR: In
> > /usr/people/gagliard/Paraview/FILES/VTK5.6/VTK/IO/vtkXMLWriter.cxx,
> > line 610 vtkXMLPolyDataWriter (0x13473b00): Error code "Is a directory"
> >
> > ERROR: In
> > /usr/people/gagliard/Paraview/FILES/VTK5.6/VTK/Filtering/vtkExecutive.
> > cxx,
> > line 757
> > vtkStreamingDemandDrivenPipeline (0x134743c0): Algorithm
> > vtkXMLPolyDataWriter(0x13473b00) returned failure for request:
> > vtkInformation (0x1347ac00)
> >  Debug: Off
> >  Modified Time: 45234
> >  Reference Count: 1
> >  Registered Events: (none)
> >  Request: REQUEST_DATA
> >  ALGORITHM_AFTER_FORWARD: 1
> >  FORWARD_DIRECTION: 0
> >  FROM_OUTPUT_PORT: -1
> > ####
> >
> > I am, however, able to write out each block separately using
> > vtkXMLPolyDataWriter:
> >
> > ####
> > for ( vtkIdType currBlk = 0; currBlk != mbdata->GetNumberOfBlocks();
> > ++currBlk ) {
> >  vtkXMLPolyDataWriter* writer = vtkXMLPolyDataWriter::New();
> >  std::ostringstream ss;
> >  ss << "debugFiles/data_out" << currBlk << ".vtp";
> >  writer->SetFileName(ss.str().c_str());
> >  writer->SetInput(mbdata->GetBlock(currBlk));
> >  writer->Write();
> >  writer->Delete();
> >  ss.str(std::string());
> > }
> > ####
> >
> > I am wondering if I'm missing something fundamental that may cause
> > that error. Hopefully someone else can point out the error as I'm not
> seeing it.
> >
> > Cheers,
> >
> > Adriano
> >
> > ===================================
> >
> > Adriano Gagliardi MEng PhD
> > Business Sector Leader
> > Computational Aerodynamics
> > Aircraft Research Association Ltd.
> > Manton Lane
> > Bedford
> >
> > Tel: 01234 32 4644
> > E-mail: agagliardi at ara.co.uk
> > Url: www.ara.co.uk
> >
> >
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> This email contains information that is private and confidential and is
> intended only for the addressee.
> If you are not the intended recipient please delete it and notify us
> immediately by e-mailing the sender.
> Note: All email sent to or from this address may be accessed by someone
> other than the recipient, for
> system management and security reasons.
> Aircraft Research Association Ltd.  Registered in England, Registration No
> 503668 Registered Office:
> Manton Lane, Bedford MK41 7PF England VAT No GB 196351245
>
> **********************************************************************
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
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>
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