Berk and I just looked at this issue. We've committed a fix. Attached is the patch.
commit dc771ff1eed2ee95284cbc7d06bac1564603035e Author: Utkarsh Ayachit <[email protected]> Date: Mon Jun 28 16:55:41 2010 -0400 Resize cell scalars when inadequate. Utkarsh On Tue, May 11, 2010 at 3:47 PM, David Borland <[email protected]> wrote: > I played around with this some more. Looks like I *can* replicate it with > RectGrid2.vtk > > I'm using the regular Stream Tracer with a Point Source (not the Custom > Source version with a Mask Points input), and changing the number of points > to 10. Then applying a Contour filter on the Integration Time to generate > particles. > > This works fine for the default settings of the Stream Tracer. However, if > I change the Maximum Error to 1e-10, it crashes (again, only when attached > to a Contour Filter). > > This is beginning to make some sense to me (I think). Because Runge-Kutta > 4-5 is an adaptive integrator, the step size is decreased to match the > error. > > Something similar must have been happening with my other data set, but > because the scale of the data was different, a different Maximum Error was > causing the crash. I think the Contour Filter is having issues when > individual points on the streamlines are too close together. > > I've attached a python trace that works. However, changing the Maximum > Error to 1e-10 causes a crash. > > Here is the location in the ContourFilter that is causing problems: > > #12 0x00007fffe7b66f93 in vtkContourFilter::RequestData (this=0x23f58e0, > request=0x21ce010, inputVector=0x238cc90, outputVector=0x2387d60) > at > /home/borland/dev/ParaView-3.8.0-RC2/VTK/Graphics/vtkContourFilter.cxx:549 > 549 cellScalars->Delete(); > > > > > > > Favre Jean wrote: >> >> ________________________________________ >> From: David Borland [[email protected]] >> Sent: Monday, May 10, 2010 5:38 PM >> To: Favre Jean >> Cc: Zhanping Liu; [email protected] >> Subject: Re: [Paraview] Contours of streamlines crashing >> >> Yes, looks like I can't replicate it with RectGrid.vtk either. However >> I have been able to replicate it with bluntfin.vts... >> ________________________________________ >> >> bluntfin.vts works just fine for me. So I can't help unless you tell us >> with a debugger, where you see a crash. Send your script using the >> bluntfin.vts file. >> >> Jean >> CSCS > > _______________________________________________ > 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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