[vtk-developers] [VTK 0012994]: vtkXMLMultiBlockDataWriter does not write names for leaf nodes of the multiblock dataset

Mantis Bug Tracker mantis at public.kitware.com
Wed Mar 14 03:58:43 EDT 2012


The following issue has been SUBMITTED. 
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http://paraview.org/Bug/view.php?id=12994 
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Reported By:                nikolay.zhavoronok
Assigned To:                
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Project:                    VTK
Issue ID:                   12994
Category:                   (No Category)
Reproducibility:            have not tried
Severity:                   minor
Priority:                   normal
Status:                     backlog
Project:                    TBD 
Type:                       incorrect functionality 
Resolution:                 open
Fixed in Version:           
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Date Submitted:             2012-03-14 03:58 EDT
Last Modified:              2012-03-14 03:58 EDT
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Summary:                    vtkXMLMultiBlockDataWriter does not write names for
leaf nodes of the multiblock dataset
Description: 
The following code will assign the name for 0 block, but will not write this
name into vtu file:
============================================
vtkNew<vtkUnstructuredGrid> ugrid;
vtkNew<vtkMultiBlockDataSet> mb;
mb->SetNumberOfBlocks( 1 );
mb->SetBlock( 0, ugrid.GetPointer() );
mb->GetMetaData( 0 )->Set(vtkCompositeDataSet::NAME(), "My Material 1");
mb->GetMetaData( 0 )->Print( std::cout ); // for debuggin to see the name
vtkXMLMultiBlockDataWriter *writer = vtkXMLMultiBlockDataWriter::New();
writer->SetInput( mb.GetPointer() );
writer->SetFileName("test.vtm");
writer->Write();
============================================
The problem is inside vtkXMLMultiBlockDataWriter.cxx, int
vtkXMLMultiBlockDataWriter::WriteComposite method iterates over multiblock data
set items, and writes names only for vtkCompositeDataSet datasets. 

The fix looks easy, I am attaching the fixed file.

VTK Reader & Paraview support reading of leaf dataset names correctly, so the
problem is only in writer.

Thanks,
Nikolay
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Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2012-03-14 03:58 nikolay.zhavoronokNew Issue                                    
2012-03-14 03:58 nikolay.zhavoronokFile Added: vtkXMLMultiBlockDataWriter.cxx   
                
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