Andy, Thanks for the quick reply – that unstructured grid was output from vtkClipDataSet. I did not think to try the Mesh Quality filter – I will try that.
This is the first ugrid that I have seen this happen to, we are using clipdataset to slice a reservoir model ugrid using a geologic horizon. Many of these jobs have been run with good results. If you would like I could send you the input data and VTK flow. Thanks, Mark From: Andy Bauer [mailto:[email protected]] Sent: Thursday, May 14, 2015 4:56 PM To: Mark Cartwright Cc: [email protected] Subject: Re: [Paraview] Integrate Variables filter generates negative volume for UnstructuredGrid Hi Mark, It looks like some of your cells are inverted in their canonical ordering. You can use the Mesh Quality filter to see the tets that have negative volumes. Probably the easiest way to fix the cells canonical ordering would be using Programmable Filter. Regards, Andy On Thu, May 14, 2015 at 5:30 PM, Mark Cartwright <[email protected]<mailto:[email protected]>> wrote: Hello, I have an unstructured grid that oddly produces a negative volume – I’ve looked for degenerate cells, etc. But cannot find anything obvious. The file is attached, it’s a very small grid of approx.. 1500 cells, I’ve removed the data arrays – they integrated negative too – but this did not resolve the issue with the volume being < 0. I am look at vtkIntegrateAttributes now and will post if I find anything. Happy bug hunting, Mark ________________________________ This email and its attachments may contain MicroSeismic Inc. proprietary information, which is PRIVILEGED, CONFIDENTIAL, or subject to COPYRIGHT belonging to MicroSeismic Inc. This email is intended solely for the use of the individual or entity to which it is addressed. If you are not the intended recipient of this email, or the employee or agent responsible for delivering this email to the intended recipient you are hereby notified that any dissemination, distribution, copying, or action taken in relation to the contents of and attachments to this email is STRICTLY PROHIBITED and may be UNLAWFUL. If you have received this email in error, please notify the sender immediately and permanently delete the original and any copy of this email and any printout. Thank You. _______________________________________________ Powered by www.kitware.com<http://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 Search the list archives at: http://markmail.org/search/?q=ParaView Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/paraview ________________________________ This email and its attachments may contain MicroSeismic Inc. proprietary information, which is PRIVILEGED, CONFIDENTIAL, or subject to COPYRIGHT belonging to MicroSeismic Inc. This email is intended solely for the use of the individual or entity to which it is addressed. If you are not the intended recipient of this email, or the employee or agent responsible for delivering this email to the intended recipient you are hereby notified that any dissemination, distribution, copying, or action taken in relation to the contents of and attachments to this email is STRICTLY PROHIBITED and may be UNLAWFUL. If you have received this email in error, please notify the sender immediately and permanently delete the original and any copy of this email and any printout. Thank You.
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