The XDMF in 3.6 did not have the global id attribute so it did the unsafe thing and let filters have their way with them. It kept the array around, but in most cases the values in the array at the end of the pipeline were worthless.
Not that XDMF does have global ids, the clip filter (like most of the other filters) is doing the safe thing and not keeping the globalids. Off the top of my head, I can not think of a reason really why the clip filter shouldn't be allowed to copy the globalids across though. Erik, try this and see if it works for you: in vtkTableBasedClipDataSet, look for the three places where it calls CopyAllocate. For example: outPD->CopyAllocate(inPD, nOutPts); Insert a line before each one of those that tells VTK that it is OK top copy this array across. In that case: outPD->SetCopyGlobalIds(1,vtkDataSetAttributes::COPYTUPLE); The globalIDS will then make it through this filter. David E DeMarle Kitware, Inc. R&D Engineer 28 Corporate Drive Clifton Park, NY 12065-8662 Phone: 518-371-3971 x109 On Mon, Apr 19, 2010 at 1:48 PM, Eric E. Monson <emon...@cs.duke.edu> wrote: > Hello, > > It seems that we're sort of getting the worst of both worlds right now > ParaView and Xdmf GlobalID AttributeType: Besides not being read in as > "idtype", a Clip filter removes the GlobalID attribute from the data set. > > Attached is a simple XML example adapted from the Xdmf source data sets, but > with a duplicate scalar point attribute labeled as AttributeType="GlobalID". > Load it into PV and apply a Clip filter and you'll see the IDvalues array > disappear. > > I see this behavior with PV 3.8-RC1 and last week's CVS, but not with 3.6.2. > I can't remember if the Xdmf reader in 3.6.2 had GlobalID type or not. (OS X > 10.6.3) > > I can file a bug report for this if someone can replicate it. > > Thanks a lot, > -Eric > > ------------------------------------------------------ > Eric E Monson > Duke Visualization Technology Group > > > _______________________________________________ > 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
