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 >> > >> > > > _______________________________________________ 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
