# Top

**URL:** https://discourse.paraview.org/top.md?page=174&period=all

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**Page:** 175

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## [Visualising MATLAB Data from Gaussian Quadrature in ParaView](https://discourse.paraview.org/t/visualising-matlab-data-from-gaussian-quadrature-in-paraview/15809)

<div class="topic-metadata">

**Author:** [@Seyed\_Sajad\_Mirjavad](https://discourse.paraview.org/u/Seyed_Sajad_Mirjavad)\
**Replies:** 1\
**Last updated:** [November 28, 2024, 9:17am UTC](https://discourse.paraview.org/t/visualising-matlab-data-from-gaussian-quadrature-in-paraview/15809 "2024-11-28T09:17:47Z")

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“I have my data stored in a results.mat file in MATLAB, which includes the plastic strain at Gaussian points. Is there a way to visualise this data in ParaView?”

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## [Improving speed for thresholding of list of values (custom selection+extractSelect)](https://discourse.paraview.org/t/improving-speed-for-thresholding-of-list-of-values-custom-selection-extractselect/17625)

<div class="topic-metadata">

**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 3\
**Last updated:** [June 19, 2026, 5:49am UTC](https://discourse.paraview.org/t/improving-speed-for-thresholding-of-list-of-values-custom-selection-extractselect/17625 "2026-06-19T05:49:16Z")

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Hello, I need to extract cells with specific values of a specific field. For this I am using the following lines of code: SetActiveSource(filter) QuerySelect(QueryString=f'(isin({fieldName}, {listOfValues}))', FieldTyp…

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## [Opacity/transparency of surface based on color map](https://discourse.paraview.org/t/opacity-transparency-of-surface-based-on-color-map/17618)

<div class="topic-metadata">

**Author:** [@PetrKryslUCSD](https://discourse.paraview.org/u/PetrKryslUCSD)\
**Replies:** 1\
**Last updated:** [June 15, 2026, 6:18am UTC](https://discourse.paraview.org/t/opacity-transparency-of-surface-based-on-color-map/17618 "2026-06-15T06:18:47Z")

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This used to work: I would map scalars to colors, and then the transfer function could be used to change the transparency of the colors. I can’t get it to work anymore (of course, it is possible that I misremember how to…

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## [Link streamlines with source seed ids](https://discourse.paraview.org/t/link-streamlines-with-source-seed-ids/15574)

<div class="topic-metadata">

**Author:** [@WhiteSte](https://discourse.paraview.org/u/WhiteSte)\
**Replies:** 1\
**Last updated:** [October 21, 2024, 11:52am UTC](https://discourse.paraview.org/t/link-streamlines-with-source-seed-ids/15574 "2024-10-21T11:52:15Z")

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Dear all, I’m generating a set of streamlines from a custom set of sources using the StreamTracerWithCustomSource filter: streamTracer = StreamTracerWithCustomSource(Input=foam\_source, SeedSource=seed\_points) In this …

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## [How to change the zoom level when running pvbatch script](https://discourse.paraview.org/t/how-to-change-the-zoom-level-when-running-pvbatch-script/17577)

<div class="topic-metadata">

**Author:** [@Nikolaos\_Beratlis](https://discourse.paraview.org/u/Nikolaos_Beratlis)\
**Replies:** 2\
**Last updated:** [May 22, 2026, 3:41pm UTC](https://discourse.paraview.org/t/how-to-change-the-zoom-level-when-running-pvbatch-script/17577 "2026-05-22T15:41:27Z")

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I have created a Paraview state file .pvsm. When I ran a python script that loads the state file and saves an animation the zoom level is different than then one when I was creating the state file in Paraview. Is it poss…

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## [Is Flatpak a viable way to package ParaView with QtWebEngineView?](https://discourse.paraview.org/t/is-flatpak-a-viable-way-to-package-paraview-with-qtwebengineview/17418)

<div class="topic-metadata">

**Author:** [@sherin.sugathan](https://discourse.paraview.org/u/sherin.sugathan)\
**Replies:** 2\
**Last updated:** [February 1, 2026, 1:43pm UTC](https://discourse.paraview.org/t/is-flatpak-a-viable-way-to-package-paraview-with-qtwebengineview/17418 "2026-02-01T13:43:56Z")

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Dear Community! :slightly\_smiling\_face: My development environment is Ubuntu (Qt5.15), and my ParaView plugin (C++) make use of a QtWebEngineView. If I attempt to package ParaView together with my plugin, I get the foll…

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## [Build install catalyst ctest n°17 fail when wrap fortran is selected](https://discourse.paraview.org/t/build-install-catalyst-ctest-n-17-fail-when-wrap-fortran-is-selected/16547)

<div class="topic-metadata">

**Author:** [@jml](https://discourse.paraview.org/u/jml)\
**Replies:** 2\
**Last updated:** [June 13, 2025, 9:59am UTC](https://discourse.paraview.org/t/build-install-catalyst-ctest-n-17-fail-when-wrap-fortran-is-selected/16547 "2025-06-13T09:59:03Z")

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Hello, i try to build catalyst in apptainer container ubuntu 24.04LTS. I have these errors during the ctest: ./Source/CTest/cmCTestRunTest.cxx:272 CMake Error at /opt/catalyst/tests/abi\_tests/nm.cmake:90 (message): Un…

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## [Correct name of PFBReader from ParFlow Plugin in pvpython](https://discourse.paraview.org/t/correct-name-of-pfbreader-from-parflow-plugin-in-pvpython/15498)

<div class="topic-metadata">

**Author:** [@caddfc](https://discourse.paraview.org/u/caddfc)\
**Replies:** 2\
**Last updated:** [October 4, 2024, 1:58pm UTC](https://discourse.paraview.org/t/correct-name-of-pfbreader-from-parflow-plugin-in-pvpython/15498 "2024-10-04T13:58:39Z")

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Good evening everyone, at the moment I am automating the visualisation of netcdf data in paraview with pvpython scripts. And now I want to do the same with ParFlow model output (.pfb) using the ParFlow plugin and in th…

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## [Which proxy is a current proxy?](https://discourse.paraview.org/t/which-proxy-is-a-current-proxy/15827)

<div class="topic-metadata">

**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 4\
**Last updated:** [December 3, 2024, 9:55am UTC](https://discourse.paraview.org/t/which-proxy-is-a-current-proxy/15827 "2024-12-03T09:55:15Z")

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Hello, dear ParaView developers! Explain me please, which proxy is considered a current? Is it always a filter, which was accessed last and is selected in the pq in the left of paraview menu, active element of the pipel…

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## [Replacement Shaders](https://discourse.paraview.org/t/replacement-shaders/14782)

<div class="topic-metadata">

**Author:** [@shawn](https://discourse.paraview.org/u/shawn)\
**Replies:** 0\
**Last updated:** [June 5, 2024, 5:16pm UTC](https://discourse.paraview.org/t/replacement-shaders/14782 "2024-06-05T17:16:33Z")

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Hey all, I am currently trying to develop some replacement shaders for Paraview, I know that there is a replacement shaders tab but I am trying to understand that when replacing shaders, how to find the original shader …

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## [contour plot of discontinous gradient, different interpolation functions to get smooth plot?](https://discourse.paraview.org/t/contour-plot-of-discontinous-gradient-different-interpolation-functions-to-get-smooth-plot/14502)

<div class="topic-metadata">

**Author:** [@simonw](https://discourse.paraview.org/u/simonw)\
**Replies:** 0\
**Last updated:** [April 27, 2024, 9:22am UTC](https://discourse.paraview.org/t/contour-plot-of-discontinous-gradient-different-interpolation-functions-to-get-smooth-plot/14502 "2024-04-27T09:22:08Z")

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Hello, suppose I have a .vtu file containing a scalar FE-solution u using bilinear FE-functions. Hence, the solution is piecewise continuous across the cells and the gradient nabla\_u is discontinous. Take attached vtu f…

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## [Handling overlapping node labels and dense graph visualization in ParaView/pvpython](https://discourse.paraview.org/t/handling-overlapping-node-labels-and-dense-graph-visualization-in-paraview-pvpython/17562)

<div class="topic-metadata">

**Author:** [@Sahith](https://discourse.paraview.org/u/Sahith)\
**Replies:** 2\
**Last updated:** [May 12, 2026, 11:07am UTC](https://discourse.paraview.org/t/handling-overlapping-node-labels-and-dense-graph-visualization-in-paraview-pvpython/17562 "2026-05-12T11:07:50Z")

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Hello, I am exploring graph/extremum graph visualization workflows in ParaView (5.13.3) and testing node labeling for dense topology visualizations. So far I tested: Find Data Extract Selection Point Labels / …

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## [pvbatch - vscode - debugpy](https://discourse.paraview.org/t/pvbatch-vscode-debugpy/17469)

<div class="topic-metadata">

**Author:** [@paul18fr](https://discourse.paraview.org/u/paul18fr)\
**Replies:** 2\
**Last updated:** [March 10, 2026, 5:51pm UTC](https://discourse.paraview.org/t/pvbatch-vscode-debugpy/17469 "2026-03-10T17:51:01Z")

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Hi Does somebody have ever experienced using pvbatch with vscode + its debugger (debugpy)? Indeed, ‘debugpy’ has not been included into Paraview python packages (it has been installed into my venv but the process is he…

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## [Create meshed surface from CFD results](https://discourse.paraview.org/t/create-meshed-surface-from-cfd-results/17442)

<div class="topic-metadata">

**Author:** [@markusandersson](https://discourse.paraview.org/u/markusandersson)\
**Replies:** 2\
**Last updated:** [February 16, 2026, 9:49am UTC](https://discourse.paraview.org/t/create-meshed-surface-from-cfd-results/17442 "2026-02-16T09:49:19Z")

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Hi All! I hace recently discovered paraview as a tool to handle huge CSV files. My work is to get the results from CFD Engineers and transfer them to 3DsMax to do nice renders. I now have a fluid in a pipe with informat…

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## [How to define an entry point when using \`paraview\_client\_add\`?](https://discourse.paraview.org/t/how-to-define-an-entry-point-when-using-paraview-client-add/17378)

<div class="topic-metadata">

**Author:** [@CsatiZoltan](https://discourse.paraview.org/u/CsatiZoltan)\
**Replies:** 2\
**Last updated:** [January 2, 2026, 9:02am UTC](https://discourse.paraview.org/t/how-to-define-an-entry-point-when-using-paraview-client-add/17378 "2026-01-02T09:02:06Z")

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I would like to make ParaView accept custom command line arguments in my ParaView custom application. To achieve that, I want to pass the optional argument of type vtkCLIOptions\* to the pqPVApplicationCore constructor. Y…

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## [how to simulate time series points with changing scalar values](https://discourse.paraview.org/t/how-to-simulate-time-series-points-with-changing-scalar-values/15679)

<div class="topic-metadata">

**Author:** [@sharon](https://discourse.paraview.org/u/sharon)\
**Replies:** 2\
**Last updated:** [November 9, 2024, 12:46pm UTC](https://discourse.paraview.org/t/how-to-simulate-time-series-points-with-changing-scalar-values/15679 "2024-11-09T12:46:10Z")

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Dear Experts, I have some points data and scalars, points coordinates are fixed values, while scalars values are time series data, so i want to do animation with point size or color changing with scalar values changes. …

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## [get all existing sources on beginning when doing trace in a existing setup](https://discourse.paraview.org/t/get-all-existing-sources-on-beginning-when-doing-trace-in-a-existing-setup/17715)

<div class="topic-metadata">

**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 3\
**Last updated:** [September 24, 2026, 3:29pm UTC](https://discourse.paraview.org/t/get-all-existing-sources-on-beginning-when-doing-trace-in-a-existing-setup/17715 "2026-09-24T15:29:52Z")

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hello, context: While scripting in paraview, I imagine i am not the only one, if i have a open paraview instance and I want to check how to modify a specific filter or how to call it to create it in paraview. I do, tool…

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## [Creating custom vectors on plane](https://discourse.paraview.org/t/creating-custom-vectors-on-plane/17680)

<div class="topic-metadata">

**Author:** [@scabo](https://discourse.paraview.org/u/scabo)\
**Replies:** 3\
**Last updated:** [August 10, 2026, 11:18pm UTC](https://discourse.paraview.org/t/creating-custom-vectors-on-plane/17680 "2026-08-10T23:18:28Z")

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Hi I have the time averaged X,Y,Z velocity of a pipe flow and I have exported them into paraview format. Now i want to draw the vectors on the plane or cross-section of the pipe with my time averaged vectors field. I ha…

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## [Should XML name or label be unique?](https://discourse.paraview.org/t/should-xml-name-or-label-be-unique/16147)

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**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 3\
**Last updated:** [February 11, 2025, 3:52pm UTC](https://discourse.paraview.org/t/should-xml-name-or-label-be-unique/16147 "2025-02-11T15:52:25Z")

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Should XML name or label be unique? Thanks

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## [I'm unable to run pvserver osmesa, it fails with a libglapi.so.0 error](https://discourse.paraview.org/t/im-unable-to-run-pvserver-osmesa-it-fails-with-a-libglapi-so-0-error/16764)

<div class="topic-metadata">

**Author:** [@mwestphal](https://discourse.paraview.org/u/mwestphal)\
**Replies:** 0\
**Last updated:** [June 2, 2025, 2:34pm UTC](https://discourse.paraview.org/t/im-unable-to-run-pvserver-osmesa-it-fails-with-a-libglapi-so-0-error/16764 "2025-06-02T14:34:08Z")

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There is an issue in older ParaView osmesa binary release that causes it to rely on system libglapi.so.0 instead of using the one provided in the package. If this file is not present on your system, you may encounter: e…

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## [Retrieve and Change Point Data in Custom Application](https://discourse.paraview.org/t/retrieve-and-change-point-data-in-custom-application/14282)

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**Author:** [@MulberryClassic](https://discourse.paraview.org/u/MulberryClassic)\
**Replies:** 0\
**Last updated:** [March 28, 2024, 7:05am UTC](https://discourse.paraview.org/t/retrieve-and-change-point-data-in-custom-application/14282 "2024-03-28T07:05:06Z")

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Hi Experts, I have loaded 2 datasets. One with 3 components (RGB) and the other as 1 component (A). I want to combine these two to form a single dataset of 4 components (RGBA). I implemented this using a programmable fi…

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## [Unable to connect to Preview on a remote machine](https://discourse.paraview.org/t/unable-to-connect-to-preview-on-a-remote-machine/13851)

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**Author:** [@Sara](https://discourse.paraview.org/u/Sara)\
**Replies:** 0\
**Last updated:** [February 2, 2024, 11:21pm UTC](https://discourse.paraview.org/t/unable-to-connect-to-preview-on-a-remote-machine/13851 "2024-02-02T23:21:11Z")

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Hello, I am unable to create the connection on Paraview on a remote machine. The error is the following: " Error: in /opt/glr/paraview/paraview-ci/build/superbuild/paraview/src/VTK/Common/System/vtkClientSocket.cxx,li…

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## [Demo using vtkPStreamTracer](https://discourse.paraview.org/t/demo-using-vtkpstreamtracer/13792)

<div class="topic-metadata">

**Author:** [@Sun](https://discourse.paraview.org/u/Sun)\
**Replies:** 0\
**Last updated:** [January 25, 2024, 10:57am UTC](https://discourse.paraview.org/t/demo-using-vtkpstreamtracer/13792 "2024-01-25T10:57:01Z")

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I want to create a distributed, parallel computing streamline on multiple machines. I need an example to show me how to do it and how to use vtkPStreamTracer

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## [Reorder CGNS variables using ParaView](https://discourse.paraview.org/t/reorder-cgns-variables-using-paraview/13636)

<div class="topic-metadata">

**Author:** [@6482a8254eb5245ba53d](https://discourse.paraview.org/u/6482a8254eb5245ba53d)\
**Replies:** 0\
**Last updated:** [January 5, 2024, 6:33pm UTC](https://discourse.paraview.org/t/reorder-cgns-variables-using-paraview/13636 "2024-01-05T18:33:37Z")

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I have a CGNS file that I use to restart a simulation. Is there a way to create a new CGNS file using Paraview to reorder the variables before setting it as a restart point? For example, in the original CGNS file, the v…

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## [Stream Tracer With Custom Source cutoff and irreproducible in ParaView 6.0.1 on Windows 11](https://discourse.paraview.org/t/stream-tracer-with-custom-source-cutoff-and-irreproducible-in-paraview-6-0-1-on-windows-11/17389)

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**Author:** [@Omega3](https://discourse.paraview.org/u/Omega3)\
**Replies:** 1\
**Last updated:** [January 5, 2026, 11:02am UTC](https://discourse.paraview.org/t/stream-tracer-with-custom-source-cutoff-and-irreproducible-in-paraview-6-0-1-on-windows-11/17389 "2026-01-05T11:02:53Z")

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I try to generate streamlines of a harmonic tangent vector field on a smooth surface. I set the source of the tracer as a Poly Points Source. But the streamlines are unexpected short. So I searched for posts here. It’s g…

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## [Export to .vtkjs Fails When Filename Contains Spaces](https://discourse.paraview.org/t/export-to-vtkjs-fails-when-filename-contains-spaces/17240)

<div class="topic-metadata">

**Author:** [@alauditi](https://discourse.paraview.org/u/alauditi)\
**Replies:** 1\
**Last updated:** [October 13, 2025, 4:54pm UTC](https://discourse.paraview.org/t/export-to-vtkjs-fails-when-filename-contains-spaces/17240 "2025-10-13T16:54:02Z")

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Hi everyone, I wanted to report a bug I encountered when exporting files to the .vtkjs format using Paraview version 6.0.0. When I try to export a file and the filename contains a space (for example, my file.vtkjs), th…

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## [How to mark the value of isolines in two different contours?](https://discourse.paraview.org/t/how-to-mark-the-value-of-isolines-in-two-different-contours/15892)

<div class="topic-metadata">

**Author:** [@Hanegawa\_Arashi](https://discourse.paraview.org/u/Hanegawa_Arashi)\
**Replies:** 1\
**Last updated:** [December 23, 2024, 2:26pm UTC](https://discourse.paraview.org/t/how-to-mark-the-value-of-isolines-in-two-different-contours/15892 "2024-12-23T14:26:59Z")

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Hello everyone! I have two contours now and I have plotted the isolines of them. I want to mark the values on the isolines, but I found if I use the “Interactive Select Points On” feature to mark the value in contour A…

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## [Asynch Paraview Proxies - how do I find what's supported?](https://discourse.paraview.org/t/asynch-paraview-proxies-how-do-i-find-whats-supported/14908)

<div class="topic-metadata">

**Author:** [@Douglas\_Brennan](https://discourse.paraview.org/u/Douglas_Brennan)\
**Replies:** 1\
**Last updated:** [June 23, 2024, 4:45pm UTC](https://discourse.paraview.org/t/asynch-paraview-proxies-how-do-i-find-whats-supported/14908 "2024-06-23T16:45:01Z")

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Hello!!! This is a question about Asynch Paraview. If there’s a better place to ask this questoin, let me know… I’m building a POC with Trame and Asynch Paraview and I’m at the point where I need to do more than I can …

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## [Should one run cmake cache update after plugin xml modification??](https://discourse.paraview.org/t/should-one-run-cmake-cache-update-after-plugin-xml-modification/14797)

<div class="topic-metadata">

**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 1\
**Last updated:** [June 7, 2024, 12:19pm UTC](https://discourse.paraview.org/t/should-one-run-cmake-cache-update-after-plugin-xml-modification/14797 "2024-06-07T12:19:19Z")

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Hello dear paraview developers! Could you please clarify wheter one should run cmake cache update after plugin xml modification?? Or he can just build? Thanks

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## [labels - legend](https://discourse.paraview.org/t/labels-legend/14518)

<div class="topic-metadata">

**Author:** [@katevill33](https://discourse.paraview.org/u/katevill33)\
**Replies:** 1\
**Last updated:** [April 29, 2024, 6:56pm UTC](https://discourse.paraview.org/t/labels-legend/14518 "2024-04-29T18:56:20Z")

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Hello, please could you tell me how to put W m-3 as exponential? many thanks in advance, Katherine

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## [The surface undulations of the 3D model created by Delaunay3D are not visible.](https://discourse.paraview.org/t/the-surface-undulations-of-the-3d-model-created-by-delaunay3d-are-not-visible/14603)

<div class="topic-metadata">

**Author:** [@efxdc](https://discourse.paraview.org/u/efxdc)\
**Replies:** 0\
**Last updated:** [May 12, 2024, 8:30am UTC](https://discourse.paraview.org/t/the-surface-undulations-of-the-3d-model-created-by-delaunay3d-are-not-visible/14603 "2024-05-12T08:30:12Z")

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I have encountered some issues while using ParaView to import CSV files and create 3D visualizations. My processing flow is as follows: \*open \> csv \> apply \*Add Filter \> Table To Points \> apply \*Add Filter \> Del…

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## [Interactive Selection on 3D View to update a WebView](https://discourse.paraview.org/t/interactive-selection-on-3d-view-to-update-a-webview/14369)

<div class="topic-metadata">

**Author:** [@Reshm\_R\_S](https://discourse.paraview.org/u/Reshm_R_S)\
**Replies:** 0\
**Last updated:** [April 9, 2024, 1:43pm UTC](https://discourse.paraview.org/t/interactive-selection-on-3d-view-to-update-a-webview/14369 "2024-04-09T13:43:13Z")

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I need to develop a simple application with two renderers displayed side by side. Left viewport will display a 3D mesh and right viewport should show a WebView where I wish to show a javascript based plot using libraries…

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## [large performance gap beween pvpython and paraview GUI](https://discourse.paraview.org/t/large-performance-gap-beween-pvpython-and-paraview-gui/17559)

<div class="topic-metadata">

**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 2\
**Last updated:** [May 12, 2026, 9:21am UTC](https://discourse.paraview.org/t/large-performance-gap-beween-pvpython-and-paraview-gui/17559 "2026-05-12T09:21:29Z")

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Hello, I have a script that takes raw data and analyze it, the script does not create absolutely no visualization whatsoever, once this is said, when i run the script from the python shell of the gui i see a large perfo…

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## [trame+jupyterlab+docker = NS\_ERROR\_CONNECTION\_REFUSED](https://discourse.paraview.org/t/trame-jupyterlab-docker-ns-error-connection-refused/17475)

<div class="topic-metadata">

**Author:** [@greg](https://discourse.paraview.org/u/greg)\
**Replies:** 2\
**Last updated:** [March 14, 2026, 7:45pm UTC](https://discourse.paraview.org/t/trame-jupyterlab-docker-ns-error-connection-refused/17475 "2026-03-14T19:45:38Z")

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I’d like to run jupyterlab with trame inside a docker container. Following Trame and Jupyter Lab | trame I use this Dockerfile: FROM ubuntu:24.04 RUN apt-get update -y RUN apt-get install -y python3-pip python3-venv …

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## [Emphasizing current time step by showing a marker or plot gradually with time (when x axis is not time)](https://discourse.paraview.org/t/emphasizing-current-time-step-by-showing-a-marker-or-plot-gradually-with-time-when-x-axis-is-not-time/15805)

<div class="topic-metadata">

**Author:** [@mehrpay](https://discourse.paraview.org/u/mehrpay)\
**Replies:** 2\
**Last updated:** [April 10, 2025, 3:04am UTC](https://discourse.paraview.org/t/emphasizing-current-time-step-by-showing-a-marker-or-plot-gradually-with-time-when-x-axis-is-not-time/15805 "2025-04-10T03:04:38Z")

</div>

I want to show the plot data chart next to the render view by emphasizing the current step on the plot curves. This can be done with a time marker when the x axis is time, but is there a way when plotting not against ti…

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## [2D Stream Tracer does not follow glyphs](https://discourse.paraview.org/t/2d-stream-tracer-does-not-follow-glyphs/16426)

<div class="topic-metadata">

**Author:** [@Kbhansson](https://discourse.paraview.org/u/Kbhansson)\
**Replies:** 2\
**Last updated:** [April 3, 2025, 6:19pm UTC](https://discourse.paraview.org/t/2d-stream-tracer-does-not-follow-glyphs/16426 "2025-04-03T18:19:28Z")

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I’ve got some 2D rectilinear data, see attached (1.6 MB). There are a couple variables in here concerning the gradient of some function. I’d like to make stream traces of this gradient function. In the attache data I …

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## [File loaded from command line gets](https://discourse.paraview.org/t/file-loaded-from-command-line-gets/15447)

<div class="topic-metadata">

**Author:** [@ThomasAC](https://discourse.paraview.org/u/ThomasAC)\
**Replies:** 2\
**Last updated:** [September 26, 2024, 11:45am UTC](https://discourse.paraview.org/t/file-loaded-from-command-line-gets/15447 "2024-09-26T11:45:39Z")

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Hi, I downloaded the ParaView v5.13.0 binaries for Linux from www.paraview.org. I noticed that when loading an STL-file via the command line, the file appears twice in the GUI. When loading the same file using the GUI,…

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## [Curvature map analysis over just one axis](https://discourse.paraview.org/t/curvature-map-analysis-over-just-one-axis/17727)

<div class="topic-metadata">

**Author:** [@Drifter\_River](https://discourse.paraview.org/u/Drifter_River)\
**Replies:** 3\
**Last updated:** [September 19, 2026, 8:24pm UTC](https://discourse.paraview.org/t/curvature-map-analysis-over-just-one-axis/17727 "2026-09-19T20:24:22Z")

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This is something that i have been trying to do for some time for some development of hydrodynamic products. Basically, what I want to do is to see a curvature (not contour) map along one axis of a mesh or point cloud. …

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## [Extracting Wall nomal profiles from Cone simulation](https://discourse.paraview.org/t/extracting-wall-nomal-profiles-from-cone-simulation/17467)

<div class="topic-metadata">

**Author:** [@Sulav\_Kafle](https://discourse.paraview.org/u/Sulav_Kafle)\
**Replies:** 3\
**Last updated:** [March 12, 2026, 9:27am UTC](https://discourse.paraview.org/t/extracting-wall-nomal-profiles-from-cone-simulation/17467 "2026-03-12T09:27:46Z")

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Hi, I want to extract wall normal profiles of my cone simulation. i donot want to plot along perpendicular y to surface but along the wall normal. How can i do that ?

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## [prescribing the motion of a solid sphere](https://discourse.paraview.org/t/prescribing-the-motion-of-a-solid-sphere/14188)

<div class="topic-metadata">

**Author:** [@asujrpv](https://discourse.paraview.org/u/asujrpv)\
**Replies:** 0\
**Last updated:** [March 18, 2024, 10:58am UTC](https://discourse.paraview.org/t/prescribing-the-motion-of-a-solid-sphere/14188 "2024-03-18T10:58:02Z")

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I have a rotating flow on cylindrical coordinates but the image is projected onto 2d cross section. The body (a sphere) is moving up and down in a sinusoidal manner and the flow is rotating, thus producing some rays as s…

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## [Domain enlargement according to 1 dimension (or distortion)](https://discourse.paraview.org/t/domain-enlargement-according-to-1-dimension-or-distortion/14098)

<div class="topic-metadata">

**Author:** [@audrey.gno](https://discourse.paraview.org/u/audrey.gno)\
**Replies:** 0\
**Last updated:** [March 6, 2024, 6:54pm UTC](https://discourse.paraview.org/t/domain-enlargement-according-to-1-dimension-or-distortion/14098 "2024-03-06T18:54:58Z")

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Dear Paraview team, My current study concerns a 3D finite element fluid domain that is very thin : about 140 km x 40 km x 70 m . Let’s say the length of 70 m is according to the vertical direction. I would like a glo…

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## [How to use vtkSMProperty](https://discourse.paraview.org/t/how-to-use-vtksmproperty/13863)

<div class="topic-metadata">

**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 0\
**Last updated:** [February 5, 2024, 9:02am UTC](https://discourse.paraview.org/t/how-to-use-vtksmproperty/13863 "2024-02-05T09:02:50Z")

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Hello! Is it true that in order to highlight some points with some color, one should use vtkSMProperty ? (because in plain VTK, one uses vtkProperty for colors ) How to use it, could you give me an example? Thanks

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## [Stereo mode side by side](https://discourse.paraview.org/t/stereo-mode-side-by-side/17232)

<div class="topic-metadata">

**Author:** [@Luc\_Renambot](https://discourse.paraview.org/u/Luc_Renambot)\
**Replies:** 1\
**Last updated:** [October 6, 2025, 5:14pm UTC](https://discourse.paraview.org/t/stereo-mode-side-by-side/17232 "2025-10-06T17:14:18Z")

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Would it be possible to have another stereo rendering mode, identical to the ‘side by side (left/right)’ mode, but using the full width of the display instead of the current mode, where it ‘squishes’ the horizontal dimen…

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## [launch fails on MacOS - conda version](https://discourse.paraview.org/t/launch-fails-on-macos-conda-version/17067)

<div class="topic-metadata">

**Author:** [@rtlee](https://discourse.paraview.org/u/rtlee)\
**Replies:** 1\
**Last updated:** [August 25, 2025, 11:38am UTC](https://discourse.paraview.org/t/launch-fails-on-macos-conda-version/17067 "2025-08-25T11:38:28Z")

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I installed paraview 6.0.0 using conda, and I get the following error: ( 1.587s) \[paraview \]vtkOpenGLRenderWindow.c:920 WARN| vtkGenericOpenGLRenderWindow (0x11ea143a0): Failed to initialize OpenGL functions!…

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## [Bug reading Exodus file?](https://discourse.paraview.org/t/bug-reading-exodus-file/16589)

<div class="topic-metadata">

**Author:** [@GregVernon](https://discourse.paraview.org/u/GregVernon)\
**Replies:** 1\
**Last updated:** [May 8, 2025, 3:39pm UTC](https://discourse.paraview.org/t/bug-reading-exodus-file/16589 "2025-05-08T15:39:34Z")

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I’ve got an Exodus file that I produced using Sculpt. Note that I’ve used EPU to recombine into a single file. The “stats” output from Sculpt reports 2,073,038 elements: ================ MESH SUMMARY =================…

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## [Threshold exactly one cell](https://discourse.paraview.org/t/threshold-exactly-one-cell/16047)

<div class="topic-metadata">

**Author:** [@edition999](https://discourse.paraview.org/u/edition999)\
**Replies:** 1\
**Last updated:** [January 24, 2025, 7:19pm UTC](https://discourse.paraview.org/t/threshold-exactly-one-cell/16047 "2025-01-24T19:19:38Z")

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Hello, I would like to threshold exactly one element of a mesh based on a cell data attribute (the element having maximum or minimum value). Is there a way to do that?

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## [Animating on two different 'levels'](https://discourse.paraview.org/t/animating-on-two-different-levels/16039)

<div class="topic-metadata">

**Author:** [@JoranZwet](https://discourse.paraview.org/u/JoranZwet)\
**Replies:** 1\
**Last updated:** [January 24, 2025, 12:55pm UTC](https://discourse.paraview.org/t/animating-on-two-different-levels/16039 "2025-01-24T12:55:26Z")

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Hi there, I work in topology optimization and our results usually consists of the design and various relevant fields (think: temperature, displacement, forces, stresses) in vti files for all optimization iterations. We …

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## [how to - from arbitrary combined selection to simple list of cell ids?](https://discourse.paraview.org/t/how-to-from-arbitrary-combined-selection-to-simple-list-of-cell-ids/15291)

<div class="topic-metadata">

**Author:** [@cobo](https://discourse.paraview.org/u/cobo)\
**Replies:** 1\
**Last updated:** [August 25, 2024, 1:15pm UTC](https://discourse.paraview.org/t/how-to-from-arbitrary-combined-selection-to-simple-list-of-cell-ids/15291 "2024-08-25T13:15:26Z")

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I am trying to understand the “new” way how selections are handled and can be combined with logical operators using “expressions”: looks great! However, once I have a vtkSelection in some filter class, containing whateve…

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## [OSPRay + OptiX shaders](https://discourse.paraview.org/t/ospray-optix-shaders/14997)

<div class="topic-metadata">

**Author:** [@shawn](https://discourse.paraview.org/u/shawn)\
**Replies:** 1\
**Last updated:** [July 5, 2024, 9:59pm UTC](https://discourse.paraview.org/t/ospray-optix-shaders/14997 "2024-07-05T21:59:06Z")

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Hey all, Just wondering if OSPRay and OptiX uses their own default shaders or do they still use the same shaders from VTK. I am trying to do a shader replacement while having ray tracing on however, it does not work lea…

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## [Opening TimeSeries multiplt .vtk files in Paraview](https://discourse.paraview.org/t/opening-timeseries-multiplt-vtk-files-in-paraview/14637)

<div class="topic-metadata">

**Author:** [@Anuhya](https://discourse.paraview.org/u/Anuhya)\
**Replies:** 1\
**Last updated:** [May 16, 2024, 9:10am UTC](https://discourse.paraview.org/t/opening-timeseries-multiplt-vtk-files-in-paraview/14637 "2024-05-16T09:10:47Z")

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Hello, I am trying to load the timeseries .vtk files to visualize the flow field and vortex per time step. But I’m not able to group it, load it and view. I have the files named with time\_series\_aoa\_beta\_001,…,time\_seri…

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