It was not clear in your email, but I am assuming that the points marked invalid are actually inside a cell in the unstructured mesh and should not have been marked so. You also stated that they happen near where the resolution of the unstructured grid changes. That can mean multiple things, but I am assuming that you are referring to a discontinuity in the grid where coarse cells share a face with multiple finer cells. If this is the case, then VTK is going to have problems because many of its algorithms, including finding the cell in which a point belongs, relies on being able to find a cell's neighbors, and this is ill defined when you have a discontinuity.
-Ken On 8/10/10 6:30 PM, "[email protected]" <[email protected]> wrote: Dear all, I am using the ResampleWithDataset filter to interpolate values from an unstructured grid to a grid of equally spaced points. >From the vtkValidPointMask, I noticed that several of the sampled points are invalid. The invalid points are found mostly where the resolution of the unstructured grid changes. Is there a way to reduce the number of invalid points? And is it correct to apply the ResampleWithDataset filter on Unstructured Grid, or should I have converted them to something else first? Thanks in advance for your help! Camilla _______________________________________________ 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 **** Kenneth Moreland *** Sandia National Laboratories *********** *** *** *** email: [email protected] ** *** ** phone: (505) 844-8919 *** web: http://www.cs.unm.edu/~kmorel
_______________________________________________ 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
