Hey Sebastien,
the UNSTRUCTURED_GRID (vtk-file 1) has around 10^8 POINTS, while the POYDATA (vtk-file 2) has around 10^6 POINTS, i.e., the POINTS in vtk-file 2 are a subset of the POINTS in vtk-file 1. Additionally, the POINTS in vtk-file 2 have some rounding error so that the location of "corresponding points" doesn't matches exactly and a nearest neighbor seems necessary. Best, Thomas ________________________________ From: Sebastien Jourdain <[email protected]> Sent: Friday, August 3, 2018 17:20 To: Fastl, Thomas Cc: paraview Subject: Re: [Paraview] Extract Point Data | Nearest Neighbor Location If they are truly the "same" why don't you forget your file2 and generate a polydata from the file1 as a file3? On Fri, Aug 3, 2018 at 9:41 AM Fastl, Thomas <[email protected]<mailto:[email protected]>> wrote: Dear Community, I've got an UNSTRUCTURED_GRID (vtk-file 1) with POINT_DATA and want to extract the POINT_DATA at specific POINTS. However, the POINTS are defined in POLYDATA (vtk-file 2) and are slightly off by some rounding error. Thus, I presume the process should look similar to: 1) Find the nearest neighbors of all POINTS defined in vtk-file 2 in vtk-file 1 2) Transfer/Store the POINT_DATA of the nearest neighbors in vtk-file 1 I've been searching the forum for hours, however, couldn't find a solution to that problem. I was wondering if there's a simple solution of doing this in Paraview? I'd really appreciate your help on this issue, thank you! Best, Thomas _______________________________________________ Powered by www.kitware.com<https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.kitware.com&data=01%7C01%7Cthomas.fastl%40kcl.ac.uk%7Ce5763891c0f6453319f108d5f95d16fd%7C8370cf1416f34c16b83c724071654356%7C0&sdata=1tZnhbKqOJXcXbg0Tp2m8D2gjHP8MOb7HGdGUc0EgD8%3D&reserved=0> ParaView discussion is moving! Please visit https://discourse.paraview.org/<https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdiscourse.paraview.org%2F&data=01%7C01%7Cthomas.fastl%40kcl.ac.uk%7Ce5763891c0f6453319f108d5f95d16fd%7C8370cf1416f34c16b83c724071654356%7C0&sdata=k6yXwz%2FsmevXQOR8FGQCAscP2996kdUPrdujqiV%2Fcg0%3D&reserved=0> for future posts. Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html<https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.kitware.com%2Fopensource%2Fopensource.html&data=01%7C01%7Cthomas.fastl%40kcl.ac.uk%7Ce5763891c0f6453319f108d5f95d16fd%7C8370cf1416f34c16b83c724071654356%7C0&sdata=k3qytN9NYE%2BVh6ZE99Kd1DUbtLIdGi3VuRqo1iQIht0%3D&reserved=0> Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView<https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fparaview.org%2FWiki%2FParaView&data=01%7C01%7Cthomas.fastl%40kcl.ac.uk%7Ce5763891c0f6453319f108d5f95d16fd%7C8370cf1416f34c16b83c724071654356%7C0&sdata=diUlLjUJJAbNWnE%2FzjxJM7uaYq9brB8MBjq0160kVWA%3D&reserved=0> Search the list archives at: http://markmail.org/search/?q=ParaView<https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmarkmail.org%2Fsearch%2F%3Fq%3DParaView&data=01%7C01%7Cthomas.fastl%40kcl.ac.uk%7Ce5763891c0f6453319f108d5f95d16fd%7C8370cf1416f34c16b83c724071654356%7C0&sdata=E0og4nleW31GkHJ0tL8nSySbRyZAqnODikkJqYSZmS8%3D&reserved=0> Follow this link to subscribe/unsubscribe: https://public.kitware.com/mailman/listinfo/paraview<https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpublic.kitware.com%2Fmailman%2Flistinfo%2Fparaview&data=01%7C01%7Cthomas.fastl%40kcl.ac.uk%7Ce5763891c0f6453319f108d5f95d16fd%7C8370cf1416f34c16b83c724071654356%7C0&sdata=R%2BrvA3fbK9R10O%2B4wYkwK8Qmgm64hcCa%2B7kd%2FukBI9I%3D&reserved=0>
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