# Top

**URL:** https://discourse.paraview.org/top.md?page=38&period=all

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**Page:** 39

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## [ParaView 5.8.1 Python CMake Flags](https://discourse.paraview.org/t/paraview-5-8-1-python-cmake-flags/5620)

<div class="topic-metadata">

**Author:** [@TimJim](https://discourse.paraview.org/u/TimJim)\
**Replies:** 4\
**Last updated:** [May 17, 2021, 2:06pm UTC](https://discourse.paraview.org/t/paraview-5-8-1-python-cmake-flags/5620 "2021-05-17T14:06:05Z")

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Hi, the flags used to specify the Python interpreter to CMake don’t seem to be working for me at the moment - or maybe I’m missing something. I want to compile a PV install to use a specific Python interpreter and enviro…

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## [Which file I need to download and install for windows?](https://discourse.paraview.org/t/which-file-i-need-to-download-and-install-for-windows/11846)

<div class="topic-metadata">

**Author:** [@Raj](https://discourse.paraview.org/u/Raj)\
**Replies:** 7\
**Last updated:** [April 17, 2023, 10:34am UTC](https://discourse.paraview.org/t/which-file-i-need-to-download-and-install-for-windows/11846 "2023-04-17T10:34:03Z")

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Hi I am very new in ParaView. I have downloaded “ParaView-5.11.0-Windows-Python3.9-msvc2017-AMD64” but not finding any “.exe” file to be installed in windows. Please help.

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## [Opacity problem on Ubuntu 20.04 LTS](https://discourse.paraview.org/t/opacity-problem-on-ubuntu-20-04-lts/5885)

<div class="topic-metadata">

**Author:** [@safranyikf](https://discourse.paraview.org/u/safranyikf)\
**Replies:** 4\
**Last updated:** [December 2, 2020, 9:21am UTC](https://discourse.paraview.org/t/opacity-problem-on-ubuntu-20-04-lts/5885 "2020-12-02T09:21:27Z")

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Dear All, I have a big trouble with ParaView 5.7.0 on Ubuntu 20.04 LTS. When I would like to change opacity of the surfaces imported from .stl the surface immediately disappears. Before updating the OS from Ubuntu 18.0…

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## [ParaView 5.7.0 Release Candidate 2 available for download](https://discourse.paraview.org/t/paraview-5-7-0-release-candidate-2-available-for-download/2397)

<div class="topic-metadata">

**Author:** [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)\
**Replies:** 2\
**Last updated:** [August 12, 2019, 4:57pm UTC](https://discourse.paraview.org/t/paraview-5-7-0-release-candidate-2-available-for-download/2397 "2019-08-12T16:57:21Z")

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The ParaView team is happy to announce that ParaView 5.7.0-RC2 (Release Candidate 2) is available for download at https://www.paraview.org/download/ In addition, ParaView’s git repository and superbuild repository hav…

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## [Visualization of NetCDF file not resulting in 3D spherical view](https://discourse.paraview.org/t/visualization-of-netcdf-file-not-resulting-in-3d-spherical-view/1107)

<div class="topic-metadata">

**Author:** [@tsinghsia](https://discourse.paraview.org/u/tsinghsia)\
**Replies:** 2\
**Last updated:** [January 6, 2019, 7:45pm UTC](https://discourse.paraview.org/t/visualization-of-netcdf-file-not-resulting-in-3d-spherical-view/1107 "2019-01-06T19:45:01Z")

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Hi, I was trying to visualize data on a sphere which is stored in a netcdf file. Somehow paraview didn’t convert latitude and longitude into spherical coordinates. Instead, it uses latitude as x-axis and longitude as y-…

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## [Delete all sources in the pipeline programatically?](https://discourse.paraview.org/t/delete-all-sources-in-the-pipeline-programatically/3864)

<div class="topic-metadata">

**Author:** [@majo\_vlas](https://discourse.paraview.org/u/majo_vlas)\
**Replies:** 3\
**Last updated:** [March 23, 2020, 8:51am UTC](https://discourse.paraview.org/t/delete-all-sources-in-the-pipeline-programatically/3864 "2020-03-23T08:51:39Z")

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Is there a way to delete all the sources with their “child’s” and everything in the pipeline programmatically? Something like for x in GetSources(): Delete(x) ?

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## [How to get the source properties programmatically](https://discourse.paraview.org/t/how-to-get-the-source-properties-programmatically/3398)

<div class="topic-metadata">

**Author:** [@majo\_vlas](https://discourse.paraview.org/u/majo_vlas)\
**Replies:** 4\
**Last updated:** [January 24, 2020, 5:01pm UTC](https://discourse.paraview.org/t/how-to-get-the-source-properties-programmatically/3398 "2020-01-24T17:01:52Z")

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If I obtain a source programmatically, is there a way to get the name of the source, if it is in “show” or “hide” mode, and the properties in general. Example, I have activeSource = GetActiveSource() print(activeSource…

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## [Visualizing particle trajectory](https://discourse.paraview.org/t/visualizing-particle-trajectory/730)

<div class="topic-metadata">

**Author:** [@xikaij](https://discourse.paraview.org/u/xikaij)\
**Replies:** 4\
**Last updated:** [October 16, 2018, 5:38pm UTC](https://discourse.paraview.org/t/visualizing-particle-trajectory/730 "2018-10-16T17:38:05Z")

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Hi, I’m using Paraview to visualize particle trajectories. The trajectories are written to disk in ExodusII format using libMesh (finite element library). When I visualize the particles, their trajectory is random as sh…

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## [Make source a VTK object?](https://discourse.paraview.org/t/make-source-a-vtk-object/4208)

<div class="topic-metadata">

**Author:** [@yw5aj](https://discourse.paraview.org/u/yw5aj)\
**Replies:** 1\
**Last updated:** [May 1, 2020, 10:58am UTC](https://discourse.paraview.org/t/make-source-a-vtk-object/4208 "2020-05-01T10:58:39Z")

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I know that in programmable filters, I can get the input in the scene easily by using self.GetInputDataObject(0, ). It is already a vtkPolyData object. When I tried to troubleshoot, I am trying to first locate a source …

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## [Identifying streamlines from exported CSV file](https://discourse.paraview.org/t/identifying-streamlines-from-exported-csv-file/113)

<div class="topic-metadata">

**Author:** [@mhowell](https://discourse.paraview.org/u/mhowell)\
**Replies:** 3\
**Last updated:** [September 15, 2021, 9:48am UTC](https://discourse.paraview.org/t/identifying-streamlines-from-exported-csv-file/113 "2021-09-15T09:48:28Z")

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Hi, when saving streamlines to a csv file is there an easy way to determine which data points correspond to a single particle? I’m trying to take the csv data into unity to create a vr animation of streamlines, but I’m …

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## [sorted/unsorted data array selection](https://discourse.paraview.org/t/sorted-unsorted-data-array-selection/1055)

<div class="topic-metadata">

**Author:** [@olesenm](https://discourse.paraview.org/u/olesenm)\
**Replies:** 7\
**Last updated:** [October 2, 2019, 11:59am UTC](https://discourse.paraview.org/t/sorted-unsorted-data-array-selection/1055 "2019-10-02T11:59:24Z")

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In my plugin I’ve been using the following type of logic void addNames(vtkDataArraySelection\* select) { select-\>AddArray("internal"); ... } When presented with these values in ParaView (5.6), the order is sorted…

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## [Supplementing cells data with an additional column with the user values](https://discourse.paraview.org/t/supplementing-cells-data-with-an-additional-column-with-the-user-values/4829)

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**Author:** [@Andrei](https://discourse.paraview.org/u/Andrei)\
**Replies:** 3\
**Last updated:** [July 27, 2020, 2:54pm UTC](https://discourse.paraview.org/t/supplementing-cells-data-with-an-additional-column-with-the-user-values/4829 "2020-07-27T14:54:00Z")

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I imported the model into Paraview from another program (it is structural finite element model, which is represented by an unstructured grid), so I have cells and points data. Please help how to supplement cells data wi…

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## [Making a tensor from scalars](https://discourse.paraview.org/t/making-a-tensor-from-scalars/2914)

<div class="topic-metadata">

**Author:** [@Mike](https://discourse.paraview.org/u/Mike)\
**Replies:** 4\
**Last updated:** [February 10, 2022, 9:16am UTC](https://discourse.paraview.org/t/making-a-tensor-from-scalars/2914 "2022-02-10T09:16:53Z")

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Dear ParaView Community, I have the components of a tensor as scalar variables, and I would like to combine them into a single tensor variable so I can use the Tensor Glyph filter. The ParaView Wiki indicates that this…

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## [How to access "Row Data" in Python?](https://discourse.paraview.org/t/how-to-access-row-data-in-python/8059)

<div class="topic-metadata">

**Author:** [@wsherman](https://discourse.paraview.org/u/wsherman)\
**Replies:** 8\
**Last updated:** [December 20, 2022, 4:35pm UTC](https://discourse.paraview.org/t/how-to-access-row-data-in-python/8059 "2022-12-20T16:35:14Z")

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Hello all, So this is an embarrassingly simple question, but I’ve Googled a lot, and am throwing in the towel and asking for directions. I’m writing a pvbatch script that reads a cvs/ssv file, which works fine. But wh…

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## [Remote Visualization](https://discourse.paraview.org/t/remote-visualization/8811)

<div class="topic-metadata">

**Author:** [@rconner15](https://discourse.paraview.org/u/rconner15)\
**Replies:** 8\
**Last updated:** [January 24, 2022, 11:36am UTC](https://discourse.paraview.org/t/remote-visualization/8811 "2022-01-24T11:36:05Z")

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Hello, I would like to use Paraview to visualize results on a remote server, but l’m at a loss for how to set it up. I’ve tried following the instructions laid out in the user guide as well as those from the pdf linked …

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## [Measuring Cross-Sectional Area of Slice](https://discourse.paraview.org/t/measuring-cross-sectional-area-of-slice/7099)

<div class="topic-metadata">

**Author:** [@Bears](https://discourse.paraview.org/u/Bears)\
**Replies:** 3\
**Last updated:** [June 23, 2022, 12:10am UTC](https://discourse.paraview.org/t/measuring-cross-sectional-area-of-slice/7099 "2022-06-23T00:10:12Z")

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Hello All, I have exported surface meshes from ITK-snap and am trying to measure the cross-sectional area of an arbitrary slice. This is a surface mesh so there is no interior points, so when taking a slice only the ext…

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## [Visualization of 3D flow from python simulation](https://discourse.paraview.org/t/visualization-of-3d-flow-from-python-simulation/8709)

<div class="topic-metadata">

**Author:** [@Alberto\_Lolli](https://discourse.paraview.org/u/Alberto_Lolli)\
**Replies:** 5\
**Last updated:** [December 31, 2021, 9:19am UTC](https://discourse.paraview.org/t/visualization-of-3d-flow-from-python-simulation/8709 "2021-12-31T09:19:42Z")

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hello everyone, I would ask some help in order to better understand my simulation results, the following images represent the pressure and the velocity field on a 3D domain. I know that there is the streamtracer fi…

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## [Flow rate over time](https://discourse.paraview.org/t/flow-rate-over-time/3115)

<div class="topic-metadata">

**Author:** [@vishruthdilip](https://discourse.paraview.org/u/vishruthdilip)\
**Replies:** 7\
**Last updated:** [December 4, 2019, 10:25am UTC](https://discourse.paraview.org/t/flow-rate-over-time/3115 "2019-12-04T10:25:06Z")

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Hello, I use the MESHFREE solver. I wanted to know if there was a way to plot volume flow rate or mass flow rate across a surface over time. I am relatively new to Paraview. Any help would be appreciated.

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## [Texturing with TIFF files - a transparency and an extension problem](https://discourse.paraview.org/t/texturing-with-tiff-files-a-transparency-and-an-extension-problem/3009)

<div class="topic-metadata">

**Author:** [@cobo](https://discourse.paraview.org/u/cobo)\
**Replies:** 7\
**Last updated:** [November 25, 2019, 12:25pm UTC](https://discourse.paraview.org/t/texturing-with-tiff-files-a-transparency-and-an-extension-problem/3009 "2019-11-25T12:25:14Z")

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This issue started as a problem with texturing with a TIFF file in my PV derived “custom application”: I have there a “textured representation” that is supposed to add texturing to topo surfaces, like aerial photo with g…

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## [Rescale to Data Range: how to do it automatically when switching sets?](https://discourse.paraview.org/t/rescale-to-data-range-how-to-do-it-automatically-when-switching-sets/13638)

<div class="topic-metadata">

**Author:** [@PetrKryslUCSD](https://discourse.paraview.org/u/PetrKryslUCSD)\
**Replies:** 8\
**Last updated:** [June 3, 2025, 7:33pm UTC](https://discourse.paraview.org/t/rescale-to-data-range-how-to-do-it-automatically-when-switching-sets/13638 "2025-06-03T19:33:03Z")

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I have a .vtu file with 100 scalar datasets. I want to go through them all by using up and down arrows in the dropdown menu below “Colouring”. However, at the moment that doesn’t work because the datasets have differen…

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## [Unable to plot current density](https://discourse.paraview.org/t/unable-to-plot-current-density/1659)

<div class="topic-metadata">

**Author:** [@SKumar](https://discourse.paraview.org/u/SKumar)\
**Replies:** 6\
**Last updated:** [April 16, 2019, 3:59pm UTC](https://discourse.paraview.org/t/unable-to-plot-current-density/1659 "2019-04-16T15:59:04Z")

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Hiii… I have to visualize the current density in the benzene molecule (calculation done by GIMIC). I have installed paraview 5.6.0 in windows 10 as well as in Centos 6. I am unable to plot the same in both. I have seen s…

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## [Merging simulation data from vtk and vtu files](https://discourse.paraview.org/t/merging-simulation-data-from-vtk-and-vtu-files/6474)

<div class="topic-metadata">

**Author:** [@peterl](https://discourse.paraview.org/u/peterl)\
**Replies:** 5\
**Last updated:** [February 17, 2021, 2:01pm UTC](https://discourse.paraview.org/t/merging-simulation-data-from-vtk-and-vtu-files/6474 "2021-02-17T14:01:18Z")

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I would like to merge two simulation data sets, one based on a structured and one on an unstructured mesh together and validate my model against another one by computing absolute value differences of certain quantities. …

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## [Operate mirror and original](https://discourse.paraview.org/t/operate-mirror-and-original/5319)

<div class="topic-metadata">

**Author:** [@JDP](https://discourse.paraview.org/u/JDP)\
**Replies:** 3\
**Last updated:** [September 15, 2020, 2:58pm UTC](https://discourse.paraview.org/t/operate-mirror-and-original/5319 "2020-09-15T14:58:55Z")

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Hello, I have a flow field around an aircraft (from SU2) that has a sideslip angle (AoS) of let’s say 5 deg. I want to get the mirror flow field at -5deg. For that, I go to Filters-\>Transform and scale Y with -1 and X an…

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## [Failed to use on Fedora 30](https://discourse.paraview.org/t/failed-to-use-on-fedora-30/2484)

<div class="topic-metadata">

**Author:** [@amivaleo](https://discourse.paraview.org/u/amivaleo)\
**Replies:** 8\
**Last updated:** [August 29, 2019, 3:43pm UTC](https://discourse.paraview.org/t/failed-to-use-on-fedora-30/2484 "2019-08-29T15:43:11Z")

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Hi! When I try to launch paraview ./ParaView-5.7.0-RC2-MPI-Linux-Python3.7-64bit/bin/paraview I get an error related to qt5: ./paraview: /home/ParaView-5.7.0-RC2-MPI-Linux-Python3.7-64bit/bin/../lib/libQt5Core.so.5: …

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## [Improve Tecplot support](https://discourse.paraview.org/t/improve-tecplot-support/7035)

<div class="topic-metadata">

**Author:** [@mwestphal](https://discourse.paraview.org/u/mwestphal)\
**Replies:** 5\
**Last updated:** [July 9, 2021, 6:07pm UTC](https://discourse.paraview.org/t/improve-tecplot-support/7035 "2021-07-09T18:07:16Z")

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From a user voice request The Tecplot reader is very usefull, but it should be further improved because many Tecplot files (written by the user according to Tecplot format specifications or written by Tecplot itself !) …

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## [paraview using polar or cylindrical coordinates](https://discourse.paraview.org/t/paraview-using-polar-or-cylindrical-coordinates/6882)

<div class="topic-metadata">

**Author:** [@swornom](https://discourse.paraview.org/u/swornom)\
**Replies:** 3\
**Last updated:** [April 6, 2021, 11:35am UTC](https://discourse.paraview.org/t/paraview-using-polar-or-cylindrical-coordinates/6882 "2021-04-06T11:35:30Z")

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my x,y,x mesh file is actually a polar mesh. How do I tell that the mesh is polar? I want to plot over lines using theta, radial lines. paraview expects a Cartesian mesh.

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## [problems viewing images](https://discourse.paraview.org/t/problems-viewing-images/2916)

<div class="topic-metadata">

**Author:** [@fpoulin](https://discourse.paraview.org/u/fpoulin)\
**Replies:** 8\
**Last updated:** [November 7, 2019, 3:25pm UTC](https://discourse.paraview.org/t/problems-viewing-images/2916 "2019-11-07T15:25:13Z")

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I have been using paraview on ubuntu for years now and as of today I can no longer view any images. The problem started before I did anything but since I have removed and reinstalled paraview and the same problem persis…

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## [TabletoPoints-\>Delauny3D vs TabletoStructuredGrid](https://discourse.paraview.org/t/tabletopoints-delauny3d-vs-tabletostructuredgrid/7587)

<div class="topic-metadata">

**Author:** [@eb1064](https://discourse.paraview.org/u/eb1064)\
**Replies:** 6\
**Last updated:** [July 20, 2021, 2:02pm UTC](https://discourse.paraview.org/t/tabletopoints-delauny3d-vs-tabletostructuredgrid/7587 "2021-07-20T14:02:28Z")

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Help! I am trying to convert a .csv to a 3D plot. The .csv contains x, y, and z voxel coordinates. If I use TabletoStructured Grid, I get: But if I use TabletoPoints → Delauny3D I get: BUT. The TabletoPoints and D…

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## [strange error when building paraview superbuild on Windows 10 with cmake](https://discourse.paraview.org/t/strange-error-when-building-paraview-superbuild-on-windows-10-with-cmake/514)

<div class="topic-metadata">

**Author:** [@quagfeng](https://discourse.paraview.org/u/quagfeng)\
**Replies:** 6\
**Last updated:** [September 4, 2018, 1:25pm UTC](https://discourse.paraview.org/t/strange-error-when-building-paraview-superbuild-on-windows-10-with-cmake/514 "2018-09-04T13:25:48Z")

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Hi, I follow the link here https://gitlab.kitware.com/paraview/paraview-superbuild to build Paraview 5.5.2 on my PC. Following the link it is said that The superbuild can be built with a Makefiles or Ninja CMake ge…

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## [Reading xdmf file using pvpython](https://discourse.paraview.org/t/reading-xdmf-file-using-pvpython/4440)

<div class="topic-metadata">

**Author:** [@Saurabh](https://discourse.paraview.org/u/Saurabh)\
**Replies:** 4\
**Last updated:** [May 28, 2020, 5:00pm UTC](https://discourse.paraview.org/t/reading-xdmf-file-using-pvpython/4440 "2020-05-28T17:00:09Z")

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Hii all, I am new to paraview pvpython interface, and I am having trouble reading xdmf file from pvpython interface. This documentation: https://kitware.github.io/paraview-docs/latest/python/paraview.simple.XDMFReader.ht…

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## [Text Background](https://discourse.paraview.org/t/text-background/1598)

<div class="topic-metadata">

**Author:** [@gromaxe](https://discourse.paraview.org/u/gromaxe)\
**Replies:** 8\
**Last updated:** [April 4, 2019, 4:56pm UTC](https://discourse.paraview.org/t/text-background/1598 "2019-04-04T16:56:22Z")

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Hello everyone! Is there a way to set a background color for Text source and Python annotation filters? I’m making an animation, and changing colors sometimes make text unreadable (like this) Having a constant backg…

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## [paraview error on wls ubuntu 22.04](https://discourse.paraview.org/t/paraview-error-on-wls-ubuntu-22-04/10745)

<div class="topic-metadata">

**Author:** [@Ramesh\_Kolluru](https://discourse.paraview.org/u/Ramesh_Kolluru)\
**Replies:** 5\
**Last updated:** [November 15, 2022, 7:23am UTC](https://discourse.paraview.org/t/paraview-error-on-wls-ubuntu-22-04/10745 "2022-11-15T07:23:19Z")

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I am using windows 11 with wsl ubunu22.04 and installed paraview with aptitude install paraview… but when I run paraview the following is the behaviour and paraview doesn’t start ( 1.161s) \[paraview \]vtkOpenG…

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## [Error: Cannot import vtkPVAnimation while building ParaView with python 3](https://discourse.paraview.org/t/error-cannot-import-vtkpvanimation-while-building-paraview-with-python-3/1797)

<div class="topic-metadata">

**Author:** [@Shailesh\_Bg](https://discourse.paraview.org/u/Shailesh_Bg)\
**Replies:** 8\
**Last updated:** [June 13, 2019, 1:27pm UTC](https://discourse.paraview.org/t/error-cannot-import-vtkpvanimation-while-building-paraview-with-python-3/1797 "2019-06-13T13:27:38Z")

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Hello, I have been at this issue for quite some time now. But still, I am not getting a way to successfully build ParaView with python3. I followed the documentation at https://github.com/Kitware/ParaView/blob/master/D…

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## [Opacity mapping makes colors disappear](https://discourse.paraview.org/t/opacity-mapping-makes-colors-disappear/6212)

<div class="topic-metadata">

**Author:** [@liangwang0734](https://discourse.paraview.org/u/liangwang0734)\
**Replies:** 6\
**Last updated:** [January 13, 2021, 3:12pm UTC](https://discourse.paraview.org/t/opacity-mapping-makes-colors-disappear/6212 "2021-01-13T15:12:28Z")

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Simple 2d slice surface view, when using “Enable opacity mapping for surfaces”, the colors disappear altogether. I feel it might be a graphic card issue. Any ideas on how to debug this? Thank you for any suggestions. …

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## [NVIDIA Index issues with CUDA 11.4 and Paraview 5.10](https://discourse.paraview.org/t/nvidia-index-issues-with-cuda-11-4-and-paraview-5-10/8897)

<div class="topic-metadata">

**Author:** [@darrengarvey](https://discourse.paraview.org/u/darrengarvey)\
**Replies:** 2\
**Last updated:** [February 3, 2022, 9:25pm UTC](https://discourse.paraview.org/t/nvidia-index-issues-with-cuda-11-4-and-paraview-5-10/8897 "2022-02-03T21:25:30Z")

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I’ve been trying to test out NVIDIA Index but not been able to get it working. I suspect it’s a CUDA version mismatch. I’ve got two RTX 3090s and have tried the official Paraview 5.10 download as well as building Paravi…

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## [colorbar visibility using animation view](https://discourse.paraview.org/t/colorbar-visibility-using-animation-view/7023)

<div class="topic-metadata">

**Author:** [@Mike\_Tree](https://discourse.paraview.org/u/Mike_Tree)\
**Replies:** 5\
**Last updated:** [September 8, 2021, 3:52pm UTC](https://discourse.paraview.org/t/colorbar-visibility-using-animation-view/7023 "2021-09-08T15:52:29Z")

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Is it possible to control the visibility of the colorbar using the animation view? How can I make a colobar disappear at a certain time?

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## [Loguru caught a signal: SIGSEGV](https://discourse.paraview.org/t/loguru-caught-a-signal-sigsegv/10743)

<div class="topic-metadata">

**Author:** [@Lipbyte](https://discourse.paraview.org/u/Lipbyte)\
**Replies:** 5\
**Last updated:** [November 25, 2022, 12:59pm UTC](https://discourse.paraview.org/t/loguru-caught-a-signal-sigsegv/10743 "2022-11-25T12:59:02Z")

</div>

Hey all, I’m running Paraview version 5.10.1 on Ubuntu and I’m trying to compile a Python script that crashes at the command line trying to compile paraview.simple.TableToPoints with: Loguru caught a signal: SIGSEGV St…

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## [How to divide the coordinates / scale down the coordinates of vti file in paraview.](https://discourse.paraview.org/t/how-to-divide-the-coordinates-scale-down-the-coordinates-of-vti-file-in-paraview/5492)

<div class="topic-metadata">

**Author:** [@rasunag27](https://discourse.paraview.org/u/rasunag27)\
**Replies:** 5\
**Last updated:** [October 5, 2020, 1:32pm UTC](https://discourse.paraview.org/t/how-to-divide-the-coordinates-scale-down-the-coordinates-of-vti-file-in-paraview/5492 "2020-10-05T13:32:06Z")

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Dear All, I have a .vti file extension which contains around 6 million datapoints. The coordinates has dimensions of 241 in x-direction, 168 in y-direction and 144 in z-direction. I need to scale down this dimension …

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## [Aerodynamic Centre of Pressure (CoP)](https://discourse.paraview.org/t/aerodynamic-centre-of-pressure-cop/1278)

<div class="topic-metadata">

**Author:** [@1408387](https://discourse.paraview.org/u/1408387)\
**Replies:** 3\
**Last updated:** [February 18, 2019, 9:35am UTC](https://discourse.paraview.org/t/aerodynamic-centre-of-pressure-cop/1278 "2019-02-18T09:35:41Z")

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I need to calculate the centre of pressure of an aerodynamic body using Paraview, with simulations having been run successfully in OpenFOAM. This is required in order to carry out structural analysis of aerodynamic devic…

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## [Interactive select points in 2D](https://discourse.paraview.org/t/interactive-select-points-in-2d/1904)

<div class="topic-metadata">

**Author:** [@mzenker](https://discourse.paraview.org/u/mzenker)\
**Replies:** 6\
**Last updated:** [May 28, 2019, 8:25am UTC](https://discourse.paraview.org/t/interactive-select-points-in-2d/1904 "2019-05-28T08:25:43Z")

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Hi, I have a (hopefully) simple question: I visualize a 2D vtu data set (result of a simulation with Elmer) and want to select one or several points. My 2D geometry is in the xy plane, and I view it with the “-z” view. …

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## [Surface LIC](https://discourse.paraview.org/t/surface-lic/6883)

<div class="topic-metadata">

**Author:** [@heisenmech](https://discourse.paraview.org/u/heisenmech)\
**Replies:** 5\
**Last updated:** [April 6, 2021, 1:42pm UTC](https://discourse.paraview.org/t/surface-lic/6883 "2021-04-06T13:42:23Z")

</div>

Hi all, I recently enabled the “Surface LIC” plugin for streamline-like visualizations. When I select Surface LIC after loading the data in Paraview, it works fine. However, when I try to get a slice on this 3D (geometr…

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## [is shear stress calculated by paraview tangential?](https://discourse.paraview.org/t/is-shear-stress-calculated-by-paraview-tangential/12529)

<div class="topic-metadata">

**Author:** [@Ahmadna94](https://discourse.paraview.org/u/Ahmadna94)\
**Replies:** 8\
**Last updated:** [July 21, 2023, 8:21pm UTC](https://discourse.paraview.org/t/is-shear-stress-calculated-by-paraview-tangential/12529 "2023-07-21T20:21:08Z")

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In my post-processing workflow with ParaView, I am calculating shear stress on each point using the velocity field. I would like to confirm whether the shear stress calculated by ParaView represents the tangential compon…

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## [Error in Paraview 5.8.1 - Could not find the MPI external dependency.](https://discourse.paraview.org/t/error-in-paraview-5-8-1-could-not-find-the-mpi-external-dependency/6306)

<div class="topic-metadata">

**Author:** [@kmilo9999](https://discourse.paraview.org/u/kmilo9999)\
**Replies:** 8\
**Last updated:** [January 27, 2021, 7:33pm UTC](https://discourse.paraview.org/t/error-in-paraview-5-8-1-could-not-find-the-mpi-external-dependency/6306 "2021-01-27T19:33:12Z")

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Hello, I am trying to build paraview 5.8.1 from the source code, and I am enabling MPI. However I am getting the error: CMake Error at VTK/CMake/vtkModule.cmake:4112 (message): Could not find the MPI external depen…

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## [undefined reference to \`glXQueryVersion' with ParaView 5.7.0RC1 and EGL combination](https://discourse.paraview.org/t/undefined-reference-to-glxqueryversion-with-paraview-5-7-0rc1-and-egl-combination/2196)

<div class="topic-metadata">

**Author:** [@uturuncoglu](https://discourse.paraview.org/u/uturuncoglu)\
**Replies:** 6\
**Last updated:** [January 22, 2023, 7:09pm UTC](https://discourse.paraview.org/t/undefined-reference-to-glxqueryversion-with-paraview-5-7-0rc1-and-egl-combination/2196 "2023-01-22T19:09:58Z")

</div>

Hi, I am getting following error when I try to install ParaView 5.7.0RC1 with EGL support, \[ 95%\] Building CXX object VTK/Rendering/OpenGL2/CMakeFiles/vtkProbeOpenGLVersion.dir/vtkProbeOpenGLVersion.cxx.o \[ 95%\] Linki…

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## [OptiX does not show up](https://discourse.paraview.org/t/optix-does-not-show-up/3679)

<div class="topic-metadata">

**Author:** [@XIYUAN\_BAO](https://discourse.paraview.org/u/XIYUAN_BAO)\
**Replies:** 6\
**Last updated:** [March 8, 2020, 7:36am UTC](https://discourse.paraview.org/t/optix-does-not-show-up/3679 "2020-03-08T07:36:51Z")

</div>

Hi there, I am using ParaView-5.8.0-MPI-Linux-Python3.7-64bit binary release on CentOS 7 with ./mpiexec ./paraview. The machine has one RTX 2080Ti, Driver 440.44, CUDA 10.2: But when I enable ray tracing OptiX backe…

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## [Grain boundaries](https://discourse.paraview.org/t/grain-boundaries/4984)

<div class="topic-metadata">

**Author:** [@f.gallardo](https://discourse.paraview.org/u/f.gallardo)\
**Replies:** 8\
**Last updated:** [June 20, 2022, 6:50am UTC](https://discourse.paraview.org/t/grain-boundaries/4984 "2022-06-20T06:50:28Z")

</div>

Hello, I have cell data which correspond to grains. I would like to outline the edges that share 2 different grain IDs, a.k.a. grain boundaries. I did an example (see picture) with 1 grain. I did: threshold of 1 g…

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## [Cannot install Paraview through the binaries on Ubuntu 18.04](https://discourse.paraview.org/t/cannot-install-paraview-through-the-binaries-on-ubuntu-18-04/3463)

<div class="topic-metadata">

**Author:** [@Xabier\_Morales\_Ferez](https://discourse.paraview.org/u/Xabier_Morales_Ferez)\
**Replies:** 2\
**Last updated:** [January 31, 2020, 3:41pm UTC](https://discourse.paraview.org/t/cannot-install-paraview-through-the-binaries-on-ubuntu-18-04/3463 "2020-01-31T15:41:39Z")

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Hi! So I had previously installed Paraview 5.4.1 through apt install Paraview on my Ubuntu. I wanted to update to the 5.8.0 RC version due to some issues with some macros not working properly. But whenever I try to inst…

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## [Getting the content of a spreadSheet in python list with pvpython](https://discourse.paraview.org/t/getting-the-content-of-a-spreadsheet-in-python-list-with-pvpython/3926)

<div class="topic-metadata">

**Author:** [@Lorenzo\_Cozzi](https://discourse.paraview.org/u/Lorenzo_Cozzi)\
**Replies:** 4\
**Last updated:** [April 2, 2020, 7:28am UTC](https://discourse.paraview.org/t/getting-the-content-of-a-spreadsheet-in-python-list-with-pvpython/3926 "2020-04-02T07:28:30Z")

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Dear all, I’m trying to compute area average distributions of flow quantities with a pvpython script. To perform the computations I need to get in my python script some quantities that are present in a spreadsheet that …

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## [Bad file descriptor error](https://discourse.paraview.org/t/bad-file-descriptor-error/3037)

<div class="topic-metadata">

**Author:** [@bastian](https://discourse.paraview.org/u/bastian)\
**Replies:** 1\
**Last updated:** [November 25, 2019, 12:42pm UTC](https://discourse.paraview.org/t/bad-file-descriptor-error/3037 "2019-11-25T12:42:12Z")

</div>

I am trying to get Paraview to run on an HPC Linux server. Calling either pvpython or pvbatch from any of the two most recent pre-compiled versions ParaView-5.7.0-osmesa-MPI-Linux-Python3.7-64bit and ParaView-5.7.0-MP…

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## [Paraview Visualizer](https://discourse.paraview.org/t/paraview-visualizer/864)

<div class="topic-metadata">

**Author:** [@jmichel](https://discourse.paraview.org/u/jmichel)\
**Replies:** 5\
**Last updated:** [November 8, 2018, 6:49pm UTC](https://discourse.paraview.org/t/paraview-visualizer/864 "2018-11-08T18:49:24Z")

</div>

Hello everyone, I’m trying to start a new web project with Visualizer, so I’m looking for some tips to implement Visualizer in my web project in the right way. The intention of Visualizer within the project is to use it…

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