# ParaView Support

**URL:** https://discourse.paraview.org/c/paraview-support/7.md?page=200

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**Page:** 201

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## [Hide a filter from Filter Search List](https://discourse.paraview.org/t/hide-a-filter-from-filter-search-list/2839)

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**Author:** [@HollowSun0](https://discourse.paraview.org/u/HollowSun0)\
**Replies:** 4\
**Last updated:** [October 28, 2019, 7:53am UTC](https://discourse.paraview.org/t/hide-a-filter-from-filter-search-list/2839 "2019-10-28T07:53:29Z")

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Hi, I’m looking for a way to hide a particular filter from the filter search list while still being available to the state file load process. If I change the ProxyGroup name attribute from “filters” to something else, …

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## [Extract a user-defined surface from 3D data](https://discourse.paraview.org/t/extract-a-user-defined-surface-from-3d-data/2858)

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**Author:** [@henry2004y](https://discourse.paraview.org/u/henry2004y)\
**Replies:** 1\
**Last updated:** [October 28, 2019, 7:43am UTC](https://discourse.paraview.org/t/extract-a-user-defined-surface-from-3d-data/2858 "2019-10-28T07:43:12Z")

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Hi there, I have a 3D unstructured VTK file from fluid simulation, and I want to extract a physical boundary (e.g. shock front) from the data. The boundary can be defined with certain kind of math expressions, for examp…

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## [Interpolate onto part of the domain](https://discourse.paraview.org/t/interpolate-onto-part-of-the-domain/2853)

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**Author:** [@henry2004y](https://discourse.paraview.org/u/henry2004y)\
**Replies:** 2\
**Last updated:** [October 27, 2019, 6:12pm UTC](https://discourse.paraview.org/t/interpolate-onto-part-of-the-domain/2853 "2019-10-27T18:12:14Z")

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Hi there, This should be simple, but I don’t know what to do. My input file is a 3D unstructured vtu. Since I am only interested in part of the domain, I want to interpolate data on a structured mesh for that specific …

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## [Animate polydata using programmable filter](https://discourse.paraview.org/t/animate-polydata-using-programmable-filter/2843)

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**Author:** [@Vincent\_Rivola](https://discourse.paraview.org/u/Vincent_Rivola)\
**Replies:** 1\
**Last updated:** [October 25, 2019, 7:57pm UTC](https://discourse.paraview.org/t/animate-polydata-using-programmable-filter/2843 "2019-10-25T19:57:22Z")

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Hi everyone, I have a CFD solution which contains time steps and that I can animate easily. I would like to load an STL for instance, and make it rotate based on the global time step which will change when I click the p…

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## [Script to extract data from Plot over Line](https://discourse.paraview.org/t/script-to-extract-data-from-plot-over-line/2851)

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**Author:** [@CLDi](https://discourse.paraview.org/u/CLDi)\
**Replies:** 0\
**Last updated:** [October 25, 2019, 5:46pm UTC](https://discourse.paraview.org/t/script-to-extract-data-from-plot-over-line/2851 "2019-10-25T17:46:52Z")

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Hi everyone, This is my first time posting here. I’ve been playing around with Paraview to automate some task to ease my Data analysis procedure. I’m trying to extract the data of several files using the Plot over Line…

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## [Importing Mesh files into a Volume Rendering](https://discourse.paraview.org/t/importing-mesh-files-into-a-volume-rendering/2849)

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**Author:** [@nicholas.jacobson](https://discourse.paraview.org/u/nicholas.jacobson)\
**Replies:** 3\
**Last updated:** [October 25, 2019, 5:08pm UTC](https://discourse.paraview.org/t/importing-mesh-files-into-a-volume-rendering/2849 "2019-10-25T17:08:12Z")

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Hello, We are trying to load a mesh file into a volume rendering. We’d like to be able to move the mesh file around and place it in the volume rendering. Can you help me understand if this is possible. nick

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## [Rotation of the camera at a specific speed](https://discourse.paraview.org/t/rotation-of-the-camera-at-a-specific-speed/2841)

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**Author:** [@bastiend](https://discourse.paraview.org/u/bastiend)\
**Replies:** 5\
**Last updated:** [October 25, 2019, 3:30pm UTC](https://discourse.paraview.org/t/rotation-of-the-camera-at-a-specific-speed/2841 "2019-10-25T15:30:09Z")

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Dear, I would like to rotate the camera during my visualisation. So in the animation view i added camera with orbit. It works well but it makes only one rotation during all the visualisation. I would like to modify this…

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## [Refine and interpolate certain cells within an unstructured grid](https://discourse.paraview.org/t/refine-and-interpolate-certain-cells-within-an-unstructured-grid/2825)

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**Author:** [@dolesch](https://discourse.paraview.org/u/dolesch)\
**Replies:** 1\
**Last updated:** [October 25, 2019, 2:51pm UTC](https://discourse.paraview.org/t/refine-and-interpolate-certain-cells-within-an-unstructured-grid/2825 "2019-10-25T14:51:46Z")

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Hello all, i have a question concerning programmable filters. I have an unstructured grid and want to interpolate within high gradient regions of a certain field variable. Therefore I want to “split” the cells with the …

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## [Attach arrow to mesh](https://discourse.paraview.org/t/attach-arrow-to-mesh/2691)

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**Author:** [@eelcovanvliet](https://discourse.paraview.org/u/eelcovanvliet)\
**Replies:** 4\
**Last updated:** [October 25, 2019, 12:47pm UTC](https://discourse.paraview.org/t/attach-arrow-to-mesh/2691 "2019-10-25T12:47:03Z")

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Hi all, I have a mesh data set that I can deform using Warp by Vector filter. I also have another data set containing a single force vector (at location \[0,0,0\], with components \[fx(t),fy(t),fz(t)\]. I can use Transform …

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## [paraview parallel overlapping when raytracing and opacity \<1](https://discourse.paraview.org/t/paraview-parallel-overlapping-when-raytracing-and-opacity-1/2768)

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**Author:** [@gilcu2](https://discourse.paraview.org/u/gilcu2)\
**Replies:** 6\
**Last updated:** [October 25, 2019, 7:08am UTC](https://discourse.paraview.org/t/paraview-parallel-overlapping-when-raytracing-and-opacity-1/2768 "2019-10-25T07:08:08Z")

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Hi, I am trying a parallel rendering with raytracing by ospray. When the opacity\<1 I get an overlapped image. I tried a clean to grid filter but the same result. What can I do? Thanks Reynaldo

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## [Line probe fails in parallel for Nek5000 data](https://discourse.paraview.org/t/line-probe-fails-in-parallel-for-nek5000-data/2828)

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**Author:** [@juanecopro](https://discourse.paraview.org/u/juanecopro)\
**Replies:** 3\
**Last updated:** [October 25, 2019, 6:38am UTC](https://discourse.paraview.org/t/line-probe-fails-in-parallel-for-nek5000-data/2828 "2019-10-25T06:38:58Z")

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Hello, I’m using Paraview 5.7.0. When I do PlotOverLine on data from Nek5000 running Paraview in serial, it works fine. But when I run in parallel, the line probe fails. Basically, it doesn’t show the Nek5000 variables,…

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## [Problem with parallel rendering with raytracing and opacity](https://discourse.paraview.org/t/problem-with-parallel-rendering-with-raytracing-and-opacity/2834)

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**Author:** [@gilcu2](https://discourse.paraview.org/u/gilcu2)\
**Replies:** 0\
**Last updated:** [October 24, 2019, 10:11am UTC](https://discourse.paraview.org/t/problem-with-parallel-rendering-with-raytracing-and-opacity/2834 "2019-10-24T10:11:29Z")

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I am running in parallel with mpiexec -np 4 pvserver and connect pv to it. If opacity\<1 without raytracing works ok. If opacity=1 with raytracing it is ok. if opacity\<1 and raytracing some overlapped composition is ob…

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## [different ExtractEdges filter for every edge of a cell](https://discourse.paraview.org/t/different-extractedges-filter-for-every-edge-of-a-cell/2833)

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**Author:** [@dolesch](https://discourse.paraview.org/u/dolesch)\
**Replies:** 0\
**Last updated:** [October 24, 2019, 9:09am UTC](https://discourse.paraview.org/t/different-extractedges-filter-for-every-edge-of-a-cell/2833 "2019-10-24T09:09:58Z")

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Hi all, is there a way to use the filter ExtractEdges to highlight only one edge of every cell? I have four cell-data values assigned for a certain edge. Therefore I require to colorize every element edge of a cell base…

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## [Efficient way to store time dependent data](https://discourse.paraview.org/t/efficient-way-to-store-time-dependent-data/2827)

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**Author:** [@pauloh](https://discourse.paraview.org/u/pauloh)\
**Replies:** 1\
**Last updated:** [October 23, 2019, 7:17pm UTC](https://discourse.paraview.org/t/efficient-way-to-store-time-dependent-data/2827 "2019-10-23T19:17:44Z")

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Hello, I need to visualize time dependent data that corresponds to a large grid. So far, I have been using a .pvd file to store a link to individual .vtu files that include the grid information and the data for each ind…

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## [Save large datasets (on unstructured grid) in PVD (.VTU) format](https://discourse.paraview.org/t/save-large-datasets-on-unstructured-grid-in-pvd-vtu-format/1833)

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**Author:** [@PasCo31](https://discourse.paraview.org/u/PasCo31)\
**Replies:** 5\
**Last updated:** [October 23, 2019, 4:43pm UTC](https://discourse.paraview.org/t/save-large-datasets-on-unstructured-grid-in-pvd-vtu-format/1833 "2019-10-23T16:43:36Z")

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Hi everyone, I’m using pvbatch to post-process DNS data and although calculations scripted in Python are quite fast, saving the data requires a prohibitively large amount of time. Here is the function used to save the …

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## [Feature External Edges Only](https://discourse.paraview.org/t/feature-external-edges-only/2812)

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**Author:** [@yamartinezgomez](https://discourse.paraview.org/u/yamartinezgomez)\
**Replies:** 4\
**Last updated:** [October 23, 2019, 2:11pm UTC](https://discourse.paraview.org/t/feature-external-edges-only/2812 "2019-10-23T14:11:26Z")

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Hello! I am trying to display only the outside edges/outline of a VTK object by using the ‘Feature Edges’ representation. However, I am only interested in the external outline shape of the vtk object and not the intern…

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## [unstructured to structured data?](https://discourse.paraview.org/t/unstructured-to-structured-data/2817)

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**Author:** [@Gary](https://discourse.paraview.org/u/Gary)\
**Replies:** 13\
**Last updated:** [October 23, 2019, 1:00pm UTC](https://discourse.paraview.org/t/unstructured-to-structured-data/2817 "2019-10-23T13:00:13Z")

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I have a closed surface (unstructured) can I use paraview to convert it to a solid voxel (image/structured) dataset? How is this achieved?

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## [A reader for .pvtu file could not be found](https://discourse.paraview.org/t/a-reader-for-pvtu-file-could-not-be-found/2822)

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**Author:** [@panwolke](https://discourse.paraview.org/u/panwolke)\
**Replies:** 6\
**Last updated:** [October 23, 2019, 12:28pm UTC](https://discourse.paraview.org/t/a-reader-for-pvtu-file-could-not-be-found/2822 "2019-10-23T12:28:23Z")

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Hello, i’m a new user for paraview and i write a .pvtp file which is wroten in the official file format.pdf. When i want open it in paraview 5.7.0, the software tells me that a reader could not be found. And i overview t…

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## [Connecting to postgresql directly](https://discourse.paraview.org/t/connecting-to-postgresql-directly/2816)

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**Author:** [@Gary](https://discourse.paraview.org/u/Gary)\
**Replies:** 1\
**Last updated:** [October 23, 2019, 7:09am UTC](https://discourse.paraview.org/t/connecting-to-postgresql-directly/2816 "2019-10-23T07:09:53Z")

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Is there a way to connect/append data from PostgreSQL directlyto paraview objects? I am visualising 3D objects in paraview, each object’s file name is the unique identifier. The unique identifier is the same in the Pos…

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## [FreeCAD ParaView 5.4.1 and 5.7.0 Problems](https://discourse.paraview.org/t/freecad-paraview-5-4-1-and-5-7-0-problems/2654)

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**Author:** [@mcrossleyuk](https://discourse.paraview.org/u/mcrossleyuk)\
**Replies:** 21\
**Last updated:** [October 22, 2019, 3:50pm UTC](https://discourse.paraview.org/t/freecad-paraview-5-4-1-and-5-7-0-problems/2654 "2019-10-22T15:50:28Z")

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First of all, I have little experience but had fantastic service from PV 5.4.1 before recent changes to FreeCAD (0.18). Similar problem. I can start PV 5.4.1 from or outside FreeCAD but cannot open a file. It just hangs …

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## [3D scatterplot with lighting/shadows](https://discourse.paraview.org/t/3d-scatterplot-with-lighting-shadows/2813)

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**Author:** [@bradley](https://discourse.paraview.org/u/bradley)\
**Replies:** 3\
**Last updated:** [October 22, 2019, 8:51am UTC](https://discourse.paraview.org/t/3d-scatterplot-with-lighting-shadows/2813 "2019-10-22T08:51:47Z")

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I need to plot my data as a 3D scatterplot, using discrete data points (no triangulation to create a surface), with such control over the lighting/shading/shadow effects that the 3-dimensionality really pops out at you. …

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## [I am having issues with the clipping animation track KeyTime values?](https://discourse.paraview.org/t/i-am-having-issues-with-the-clipping-animation-track-keytime-values/2787)

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**Author:** [@Teresita\_Ramirez\_Agu](https://discourse.paraview.org/u/Teresita_Ramirez_Agu)\
**Replies:** 3\
**Last updated:** [October 21, 2019, 11:58pm UTC](https://discourse.paraview.org/t/i-am-having-issues-with-the-clipping-animation-track-keytime-values/2787 "2019-10-21T23:58:27Z")

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I am trying to use the clipping tool with python and I feel like I have the correct set up for this, however every time I run my script the times for the animation track of the clip are off. this is what I want: #…

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## [Getting uniformly distributed points](https://discourse.paraview.org/t/getting-uniformly-distributed-points/2796)

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**Author:** [@y.abdoush](https://discourse.paraview.org/u/y.abdoush)\
**Replies:** 14\
**Last updated:** [October 21, 2019, 9:39am UTC](https://discourse.paraview.org/t/getting-uniformly-distributed-points/2796 "2019-10-21T09:39:10Z")

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Hello all, I am a very new user of Paraview so I apologize in advance if my question is very trivial to some. I have a 2D surface extracted from a 3D one (x-y plane, i;e, y=f(x)). When I extract the data, the points ar…

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## [getting at geometry point data within a python macro](https://discourse.paraview.org/t/getting-at-geometry-point-data-within-a-python-macro/2774)

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**Author:** [@garcfd](https://discourse.paraview.org/u/garcfd)\
**Replies:** 6\
**Last updated:** [October 21, 2019, 3:50am UTC](https://discourse.paraview.org/t/getting-at-geometry-point-data-within-a-python-macro/2774 "2019-10-21T03:50:36Z")

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How do you read or modify geometry point data within a python macro? I’m reading in an STL file with STLReader (that works ok) Then I’m using pd = reader.GetPointDataInformation() but its not working, and there are no…

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## [Split occurs in the 3D plot of a 2D multi-piece domain](https://discourse.paraview.org/t/split-occurs-in-the-3d-plot-of-a-2d-multi-piece-domain/2809)

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**Author:** [@JunmingDuan](https://discourse.paraview.org/u/JunmingDuan)\
**Replies:** 1\
**Last updated:** [October 20, 2019, 2:49am UTC](https://discourse.paraview.org/t/split-occurs-in-the-3d-plot-of-a-2d-multi-piece-domain/2809 "2019-10-20T02:49:22Z")

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Dear all, I have a parallel vtu data consists of several vtu data, which represent the solution in several pieces of the whole computational domain. I try to give a 3D plot of the density on the 2D domain. So I use t…

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## [How to ensure that "client-server wrapping is properly initialized"?](https://discourse.paraview.org/t/how-to-ensure-that-client-server-wrapping-is-properly-initialized/2556)

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**Author:** [@cobo](https://discourse.paraview.org/u/cobo)\
**Replies:** 20\
**Last updated:** [October 18, 2019, 1:07pm UTC](https://discourse.paraview.org/t/how-to-ensure-that-client-server-wrapping-is-properly-initialized/2556 "2019-10-18T13:07:42Z")

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What would you do if you get the following error message - after the PV has crashed: vtkSISourceProxy (0x296eb70): Failed to create ‘vtkAtgBlockModelReader’. This typically means that ParaView does not know about the re…

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## [Using conda python to run the trace script does not work, while using pvpython it works](https://discourse.paraview.org/t/using-conda-python-to-run-the-trace-script-does-not-work-while-using-pvpython-it-works/2785)

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**Author:** [@Robinnie](https://discourse.paraview.org/u/Robinnie)\
**Replies:** 5\
**Last updated:** [October 18, 2019, 2:58am UTC](https://discourse.paraview.org/t/using-conda-python-to-run-the-trace-script-does-not-work-while-using-pvpython-it-works/2785 "2019-10-18T02:58:00Z")

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Dear gurus, I met a problem which maybe easy for you. It is strange to get following error: ERROR: In /home/conda/feedstock\_root/build\_artifacts/paraview\_1543153320890/work/VTK/Rendering/OpenGL2/ vtkOpenGLRenderWindow.…

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## [Clip and Slice fines mesh](https://discourse.paraview.org/t/clip-and-slice-fines-mesh/2792)

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**Author:** [@Vaya\_Putra](https://discourse.paraview.org/u/Vaya_Putra)\
**Replies:** 9\
**Last updated:** [October 18, 2019, 1:17am UTC](https://discourse.paraview.org/t/clip-and-slice-fines-mesh/2792 "2019-10-18T01:17:32Z")

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Hi all i have fine mesh 100x100x3, then i want to clip become small mesh 12x16x3 or 576 cells, but what i have 12.3x16x3 and consist 624 cells i cant exactly clip in the corner of cells any one help me12x16x3.vtu (68.3 …

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## [Question: how to place the camera to make sure snapshot the whole dataset in python script (NOT in GUI)](https://discourse.paraview.org/t/question-how-to-place-the-camera-to-make-sure-snapshot-the-whole-dataset-in-python-script-not-in-gui/2789)

<div class="topic-metadata">

**Author:** [@Robinnie](https://discourse.paraview.org/u/Robinnie)\
**Replies:** 6\
**Last updated:** [October 17, 2019, 1:45pm UTC](https://discourse.paraview.org/t/question-how-to-place-the-camera-to-make-sure-snapshot-the-whole-dataset-in-python-script-not-in-gui/2789 "2019-10-17T13:45:56Z")

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I am using python script to snapshot the 3D datasets. A lot of datasets. It seems the camera position/placement, etc will affect the snapshot(it may snapshot the whole dataset, or just part of it) as shown as the attache…

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## [Paraview build with GDAL problem](https://discourse.paraview.org/t/paraview-build-with-gdal-problem/2393)

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**Author:** [@Lovrenc\_Pavlin](https://discourse.paraview.org/u/Lovrenc_Pavlin)\
**Replies:** 1\
**Last updated:** [October 17, 2019, 1:45pm UTC](https://discourse.paraview.org/t/paraview-build-with-gdal-problem/2393 "2019-10-17T13:45:53Z")

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Hi! I am trying to build paraview with GDAL enabled with no luck. I am on windows 10, with latest cmake (3.15.1) , Qt 5.12, VS 2019. I can make a build without GDAL enabled but with it I get errors (see attached file). …

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