I'm terrible with names but..... If you would like to keep the default behavior the same then I would suggest an option to "Maintain structure".
Any good? Thanks, Paul On 25 February 2010 15:09, Utkarsh Ayachit <[email protected]>wrote: > Ah I c. I don't think there was any strong reason for trimming the > tree down. We can definitely add that as an option as well. Any ideas > what to call this new option :)? > > Utkarsh > > On Thu, Feb 25, 2010 at 9:57 AM, Paul Edwards <[email protected]> > wrote: > > Utkarsh, > > If you do that you will end up with all the empty blocks in the > structure. > > I would like to just see the extracted blocks without losing the > original > > structure. > > Regards, > > Paul > > > > On 25 February 2010 14:50, Utkarsh Ayachit <[email protected]> > > wrote: > >> > >> Paul, > >> > >> If you don't want the ExtractBlock filter to prune the output, you can > >> always simply uncheck the "Prune Output" checkbox. > >> > >> Utkarsh > >> > >> On Thu, Feb 18, 2010 at 9:45 AM, Paul Edwards <[email protected] > > > >> wrote: > >> > Hi, > >> > What is the reason for pruning the structure in the "Extract Block" > >> > filter > >> > when there is only one child item? I output the following structure > >> > from > >> > the custom reader: > >> > > >> > output (multi-block dataset) > >> > > >> > zone 1 (multi-block dataset) > >> > > >> > volume (unstructured grid) > >> > boundaries (multi-block dataset) > >> > > >> > blade (poly data) > >> > hub (poly data) > >> > case (poly data) > >> > > >> > zone 2 (multi-block dataset) > >> > > >> > volume (unstructured grid) > >> > boundaries (multi-block dataset) > >> > > >> > blade (poly data) > >> > hub (poly data) > >> > case (poly data) > >> > > >> > If I were to extract both the blades then the resulting structured > would > >> > be: > >> > > >> > output (multi-block dataset) > >> > > >> > blade (poly data) > >> > blade (poly data) > >> > > >> > This has now lost all the information from the original structure. > >> > Commenting out the section for the case when there is only one child > >> > item > >> > fixes this for me: > >> > > >> > > 8<-------------------------------------------------------------------------------------------------- > >> > Index: ./VTK/Graphics/vtkExtractBlock.cxx > >> > =================================================================== > >> > RCS file: > >> > /cvsroot/ParaView3/ParaView3/VTK/Graphics/vtkExtractBlock.cxx,v > >> > retrieving revision 1.6 > >> > diff -r1.6 vtkExtractBlock.cxx > >> > 239,251c239,251 > >> > < vtkMultiBlockDataSet* prunedBlock = > >> > vtkMultiBlockDataSet::SafeDownCast(block); > >> > < if (prunedBlock && prunedBlock->GetNumberOfBlocks()==1) > >> > < { > >> > < // shrink redundant branches. > >> > < clone->SetBlock(index, prunedBlock->GetBlock(0)); > >> > < if (prunedBlock->HasMetaData(static_cast<unsigned > int>(0))) > >> > < { > >> > < > clone->GetMetaData(index)->Copy(prunedBlock->GetMetaData( > >> > < static_cast<unsigned int>(0))); > >> > < } > >> > < } > >> > < else > >> > < { > >> > --- > >> >> // vtkMultiBlockDataSet* prunedBlock = > >> >> vtkMultiBlockDataSet::SafeDownCast(block); > >> >> // if (prunedBlock && prunedBlock->GetNumberOfBlocks()==1) > >> >> // { > >> >> // // shrink redundant branches. > >> >> // clone->SetBlock(index, prunedBlock->GetBlock(0)); > >> >> // if (prunedBlock->HasMetaData(static_cast<unsigned > int>(0))) > >> >> // { > >> >> // > clone->GetMetaData(index)->Copy(prunedBlock->GetMetaData( > >> >> // static_cast<unsigned int>(0))); > >> >> // } > >> >> // } > >> >> // else > >> >> // { > >> > 257c257 > >> > < } > >> > --- > >> >> // } > >> > > >> > > -------------------------------------------------------------------------------------------------->8 > >> > Could this case be removed in the main CVS or is there a good reason > for > >> > keeping it? (maybe an option could be added for it....) > >> > Thanks, > >> > Paul > >> > _______________________________________________ > >> > 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 ParaView Wiki at: > >> > http://paraview.org/Wiki/ParaView > >> > > >> > Follow this link to subscribe/unsubscribe: > >> > http://www.paraview.org/mailman/listinfo/paraview > >> > > >> > > > > > >
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