# Top

**URL:** https://discourse.paraview.org/top.md?page=176&period=all

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**Page:** 177

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## [Problem with Gradient Filter in computing vorticity](https://discourse.paraview.org/t/problem-with-gradient-filter-in-computing-vorticity/15168)

<div class="topic-metadata">

**Author:** [@Gaurav\_Gupta](https://discourse.paraview.org/u/Gaurav_Gupta)\
**Replies:** 1\
**Last updated:** [August 5, 2024, 10:51am UTC](https://discourse.paraview.org/t/problem-with-gradient-filter-in-computing-vorticity/15168 "2024-08-05T10:51:15Z")

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Hello, I am analysing the vortices around my geometry using the Gradient Filter. The output looks boxy and discontinous near the geometry (See the reference image). How could I resolve this issue ? The mesh is finer the…

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## [How to Volume Render Data in Custom Application Without Widgets?](https://discourse.paraview.org/t/how-to-volume-render-data-in-custom-application-without-widgets/14249)

<div class="topic-metadata">

**Author:** [@Depoha](https://discourse.paraview.org/u/Depoha)\
**Replies:** 0\
**Last updated:** [March 24, 2024, 1:32pm UTC](https://discourse.paraview.org/t/how-to-volume-render-data-in-custom-application-without-widgets/14249 "2024-03-24T13:32:49Z")

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Hello experts, I am writing a custom application to load in .pvd data and then volume render it. I am able to load in the data, and display at as representation types Surface, Points, Outline etc. But when I set it to V…

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## [Programmatical active selection creation](https://discourse.paraview.org/t/programmatical-active-selection-creation/14163)

<div class="topic-metadata">

**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 0\
**Last updated:** [March 14, 2024, 6:56pm UTC](https://discourse.paraview.org/t/programmatical-active-selection-creation/14163 "2024-03-14T18:56:07Z")

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Hello dear Paraview developers! Could you please clarify, how to create active selection from c++ filter programmatically? Best regards

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## [plot over line vtp files](https://discourse.paraview.org/t/plot-over-line-vtp-files/17679)

<div class="topic-metadata">

**Author:** [@Mersad\_j](https://discourse.paraview.org/u/Mersad_j)\
**Replies:** 3\
**Last updated:** [August 14, 2026, 7:25am UTC](https://discourse.paraview.org/t/plot-over-line-vtp-files/17679 "2026-08-14T07:25:27Z")

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validator.vtp (2.6 MB) hi i have a file in vtp format. im new to paraview and i have some problems. i share here. when i use plot over line or any types of plot filters i dont know how to set my x and y axis data. for e…

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## [lvsb cmake -DENABLE\_openxrsdk:BOOL=ON option error + plugin manager menu option](https://discourse.paraview.org/t/lvsb-cmake-denable-openxrsdk-bool-on-option-error-plugin-manager-menu-option/17472)

<div class="topic-metadata">

**Author:** [@simonmssu](https://discourse.paraview.org/u/simonmssu)\
**Replies:** 2\
**Last updated:** [March 13, 2026, 5:11pm UTC](https://discourse.paraview.org/t/lvsb-cmake-denable-openxrsdk-bool-on-option-error-plugin-manager-menu-option/17472 "2026-03-13T17:11:45Z")

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Hello, we would like to run LidarView with ParaView’s XR Interface Plugin to see our point cloud data on a Head Mounted Display. However, my cmake options below cmake ..\\lvsb -GNinja -DCMAKE\_BUILD\_TYPE=Release -DENABL…

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## [Colorby field not getting rendered/updated from script](https://discourse.paraview.org/t/colorby-field-not-getting-rendered-updated-from-script/16801)

<div class="topic-metadata">

**Author:** [@Shashi](https://discourse.paraview.org/u/Shashi)\
**Replies:** 2\
**Last updated:** [June 13, 2025, 7:47am UTC](https://discourse.paraview.org/t/colorby-field-not-getting-rendered-updated-from-script/16801 "2025-06-13T07:47:00Z")

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Hey all I am facing an issue with Colorby field not getting updated and rendered based on my choice. After running the script i get a full blue graph which is not desired. However if i change colorby to something arbitr…

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## [control "axes grid" properties using python script](https://discourse.paraview.org/t/control-axes-grid-properties-using-python-script/15879)

<div class="topic-metadata">

**Author:** [@Chen\_Huang](https://discourse.paraview.org/u/Chen_Huang)\
**Replies:** 2\
**Last updated:** [January 8, 2025, 11:58am UTC](https://discourse.paraview.org/t/control-axes-grid-properties-using-python-script/15879 "2025-01-08T11:58:53Z")

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Hi, I want to modify “axes grid” properties using python script. It seems that some scripts are working, but some are not working. For example: the following is working: \>\>\> renderView = GetActiveView() \>\>\> axesGrid = …

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## [How to hide particles？](https://discourse.paraview.org/t/how-to-hide-particles/15660)

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**Author:** [@Guanlong](https://discourse.paraview.org/u/Guanlong)\
**Replies:** 2\
**Last updated:** [October 31, 2024, 2:11am UTC](https://discourse.paraview.org/t/how-to-hide-particles/15660 "2024-10-31T02:11:28Z")

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How are you, researchers. How can I hide the selected particles? For example, the particles within the rectangle shown in the figure below. I provided the VTK file of the particles. Please give the relevant operation pro…

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## [Bug with "Cell Centers" and "Plot over line" filter](https://discourse.paraview.org/t/bug-with-cell-centers-and-plot-over-line-filter/16560)

<div class="topic-metadata">

**Author:** [@baranKucukcay](https://discourse.paraview.org/u/baranKucukcay)\
**Replies:** 1\
**Last updated:** [May 2, 2025, 9:07am UTC](https://discourse.paraview.org/t/bug-with-cell-centers-and-plot-over-line-filter/16560 "2025-05-02T09:07:39Z")

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I am currently using ParaView for post-processing while developing a solver as part of my master’s studies. In my code, the output is generated as rectilinear cells—so my data is in the form of cell data. When I apply th…

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## [Problem with extension .cpp vtk\_module\_add\_module](https://discourse.paraview.org/t/problem-with-extension-cpp-vtk-module-add-module/16370)

<div class="topic-metadata">

**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 1\
**Last updated:** [March 24, 2025, 10:04am UTC](https://discourse.paraview.org/t/problem-with-extension-cpp-vtk-module-add-module/16370 "2025-03-24T10:04:11Z")

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Hello! I have a problem with Severity Code Description Project File Line Suppression State Details Error CMake Error at VTK/CMake/vtkModule.cmake:3393 (add\_library): Cannot find source file: File.cxx Tried e…

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## [MYSTERY: How to get access to the upstream algorithm from the client side?](https://discourse.paraview.org/t/mystery-how-to-get-access-to-the-upstream-algorithm-from-the-client-side/15813)

<div class="topic-metadata">

**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 1\
**Last updated:** [November 29, 2024, 8:56am UTC](https://discourse.paraview.org/t/mystery-how-to-get-access-to-the-upstream-algorithm-from-the-client-side/15813 "2024-11-29T08:56:05Z")

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Hello dear Paraview developers! I have a question of great importance. How can one get access to the algorithm upstream to the current algorithm from the widget side? I know about filter = vtkSrcPrxyPtr::Take(vtkSMSou…

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## [How to change default settings for Visualizer checkboxes](https://discourse.paraview.org/t/how-to-change-default-settings-for-visualizer-checkboxes/15724)

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**Author:** [@roka2024](https://discourse.paraview.org/u/roka2024)\
**Replies:** 1\
**Last updated:** [November 16, 2024, 12:25am UTC](https://discourse.paraview.org/t/how-to-change-default-settings-for-visualizer-checkboxes/15724 "2024-11-16T00:25:09Z")

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Hi, I want to set the default for “Map Scalars” to false, i.e. unchecked, when launching Visualizer. How can I do that? Thanks, Robert

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## [Hardware for streamlines and contours in a 10^9 3D cartesian grid](https://discourse.paraview.org/t/hardware-for-streamlines-and-contours-in-a-10-9-3d-cartesian-grid/14415)

<div class="topic-metadata">

**Author:** [@XavierFRANK](https://discourse.paraview.org/u/XavierFRANK)\
**Replies:** 0\
**Last updated:** [April 16, 2024, 3:32pm UTC](https://discourse.paraview.org/t/hardware-for-streamlines-and-contours-in-a-10-9-3d-cartesian-grid/14415 "2024-04-16T15:32:11Z")

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Hi I am preparing to purchase a workstation that will be used for Paraview sessions. A typical dataset will be, for example, a flow in a porous material. Streamlines and 3D contours will be required. The size of the Ca…

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## [ParaView editing grid](https://discourse.paraview.org/t/paraview-editing-grid/17421)

<div class="topic-metadata">

**Author:** [@Vinicius](https://discourse.paraview.org/u/Vinicius)\
**Replies:** 1\
**Last updated:** [February 2, 2026, 12:37pm UTC](https://discourse.paraview.org/t/paraview-editing-grid/17421 "2026-02-02T12:37:12Z")

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Hi, I know this is a long shot, but I thought it was worth asking. I have a structured (curvilinear) grid vtk file in which each cell is assigned a property value: I also have the same grid with all property values …

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## [I dont know why paraview is not fluid when I mesh](https://discourse.paraview.org/t/i-dont-know-why-paraview-is-not-fluid-when-i-mesh/17245)

<div class="topic-metadata">

**Author:** [@ZEYxTER](https://discourse.paraview.org/u/ZEYxTER)\
**Replies:** 1\
**Last updated:** [October 17, 2025, 8:04am UTC](https://discourse.paraview.org/t/i-dont-know-why-paraview-is-not-fluid-when-i-mesh/17245 "2025-10-17T08:04:19Z")

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I have a 3080 nvidia and i5 11600KF 32 Gb RAM and Ubuntu 22.04 and when following a course on openfoam v9 and going through the Ahmed body example, I see paraview on the tutorial having no lag and mine (with the exact sa…

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## [Using InteractiveLine widget in Python plugin](https://discourse.paraview.org/t/using-interactiveline-widget-in-python-plugin/16606)

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**Author:** [@elynch](https://discourse.paraview.org/u/elynch)\
**Replies:** 1\
**Last updated:** [May 12, 2025, 2:57pm UTC](https://discourse.paraview.org/t/using-interactiveline-widget-in-python-plugin/16606 "2025-05-12T14:57:20Z")

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I’m trying to write a Python plugin with a line, defined by two points, as one of its inputs. If possible, I would like to use ParaView’s InteractiveLine widget to select the points so the user can interactively pick th…

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## [automatic positioning of scroll bar on selection of filter](https://discourse.paraview.org/t/automatic-positioning-of-scroll-bar-on-selection-of-filter/17691)

<div class="topic-metadata">

**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 3\
**Last updated:** [August 19, 2026, 3:48pm UTC](https://discourse.paraview.org/t/automatic-positioning-of-scroll-bar-on-selection-of-filter/17691 "2026-08-19T15:48:12Z")

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hello, I make this feature request in the follow up of different UI improvements. context: User using paraview particularly with pvstates or python scripts. when we load a pvstate or run a python script on the paravie…

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## [Difference between Find Data MaxValue of TemporalStatistics results and Find Data nearest the identified point](https://discourse.paraview.org/t/difference-between-find-data-maxvalue-of-temporalstatistics-results-and-find-data-nearest-the-identified-point/17663)

<div class="topic-metadata">

**Author:** [@etterac](https://discourse.paraview.org/u/etterac)\
**Replies:** 3\
**Last updated:** [July 27, 2026, 2:04pm UTC](https://discourse.paraview.org/t/difference-between-find-data-maxvalue-of-temporalstatistics-results-and-find-data-nearest-the-identified-point/17663 "2026-07-27T14:04:47Z")

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Hello, I’m using and old ParaView 5.6.0 64-bit on Linux Workstation to analyze CFD vtp unsteady results files. The concern is to find the maximum local value inside these hundreds of files. My problem is that I obtain …

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## [Export a ray traced environment for an animation](https://discourse.paraview.org/t/export-a-ray-traced-environment-for-an-animation/14900)

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**Author:** [@Methil](https://discourse.paraview.org/u/Methil)\
**Replies:** 0\
**Last updated:** [June 21, 2024, 12:29pm UTC](https://discourse.paraview.org/t/export-a-ray-traced-environment-for-an-animation/14900 "2024-06-21T12:29:16Z")

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Hello, I want to export a 3D visualisation with a ray traced environment in order to make an animation but I have two issues: The first issue is that when I export an image, I have a very noisy result which is the res…

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## [Removing edge points from the original data](https://discourse.paraview.org/t/removing-edge-points-from-the-original-data/14716)

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**Author:** [@Foojan](https://discourse.paraview.org/u/Foojan)\
**Replies:** 0\
**Last updated:** [May 27, 2024, 1:39am UTC](https://discourse.paraview.org/t/removing-edge-points-from-the-original-data/14716 "2024-05-27T01:39:21Z")

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Hi, I have extracted a contour in 3D space from OpenFoam output. After using “FeatureEdges”, I was able to detect the points on the edge. How can I remove such points from my original dataset? Thanks,

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## [What is ProxyGroup and what is it needed for?](https://discourse.paraview.org/t/what-is-proxygroup-and-what-is-it-needed-for/14311)

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**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 0\
**Last updated:** [April 2, 2024, 8:13am UTC](https://discourse.paraview.org/t/what-is-proxygroup-and-what-is-it-needed-for/14311 "2024-04-02T08:13:14Z")

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Hello! What does ‘ProxyGroup’ in plugin xml means? What values could this parameter have? Thanks!

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## [ParaView 6.1.0 severe UI lag with NVIDIA driver 595 — ?? Qt 6.9 interaction](https://discourse.paraview.org/t/paraview-6-1-0-severe-ui-lag-with-nvidia-driver-595-qt-6-9-interaction/17570)

<div class="topic-metadata">

**Author:** [@karl.randle](https://discourse.paraview.org/u/karl.randle)\
**Replies:** 0\
**Last updated:** [May 19, 2026, 10:12am UTC](https://discourse.paraview.org/t/paraview-6-1-0-severe-ui-lag-with-nvidia-driver-595-qt-6-9-interaction/17570 "2026-05-19T10:12:30Z")

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Summary ParaView 6.1.0 is extremely slow on a high-end workstation with NVIDIA driver 595.97 (RTX PRO 4000 Blackwell). The slowness affects toggling visibility of pipeline items, switching representations (e.g. outline t…

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## [The effect of where different types of cells are defined in Vtk on their internal index numbers](https://discourse.paraview.org/t/the-effect-of-where-different-types-of-cells-are-defined-in-vtk-on-their-internal-index-numbers/14710)

<div class="topic-metadata">

**Author:** [@hohoyu](https://discourse.paraview.org/u/hohoyu)\
**Replies:** 0\
**Last updated:** [May 25, 2024, 8:02am UTC](https://discourse.paraview.org/t/the-effect-of-where-different-types-of-cells-are-defined-in-vtk-on-their-internal-index-numbers/14710 "2024-05-25T08:02:39Z")

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hi, I have a Vtk file which has both line and facet cells, and even if the facet cell definition is placed before the line cell, when imported using paraview its internal index number is the line cell before the facet c…

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## [How to extract vertex points after using feature edge filter?](https://discourse.paraview.org/t/how-to-extract-vertex-points-after-using-feature-edge-filter/14507)

<div class="topic-metadata">

**Author:** [@fcheng](https://discourse.paraview.org/u/fcheng)\
**Replies:** 0\
**Last updated:** [April 27, 2024, 6:27pm UTC](https://discourse.paraview.org/t/how-to-extract-vertex-points-after-using-feature-edge-filter/14507 "2024-04-27T18:27:49Z")

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Hi all, After using feature edge filter, my 2d example dataset becomes the following which looks good: However, if only just want to keep the points at the featured edge vertices(remove the extras) like this: W…

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## [get registrationName of filter object](https://discourse.paraview.org/t/get-registrationname-of-filter-object/17175)

<div class="topic-metadata">

**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 1\
**Last updated:** [September 10, 2025, 9:22am UTC](https://discourse.paraview.org/t/get-registrationname-of-filter-object/17175 "2025-09-10T09:22:25Z")

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Hello, how can one get the registrationName of a filter? or the name of the filter on the pipeline if it is a different thing from registrationName. thanks

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## [Clipping a portion of slice along a curved line.](https://discourse.paraview.org/t/clipping-a-portion-of-slice-along-a-curved-line/16772)

<div class="topic-metadata">

**Author:** [@scabo](https://discourse.paraview.org/u/scabo)\
**Replies:** 1\
**Last updated:** [June 4, 2025, 7:58am UTC](https://discourse.paraview.org/t/clipping-a-portion-of-slice-along-a-curved-line/16772 "2025-06-04T07:58:56Z")

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Hi I want to clip a portion of the slice along a curved line and then calcualte the area averaged properties on that 2 specific surfaces. I have attached the picture and i want to clip along the outer edges of the corne…

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## [Paraview using spack](https://discourse.paraview.org/t/paraview-using-spack/15775)

<div class="topic-metadata">

**Author:** [@omnipresent](https://discourse.paraview.org/u/omnipresent)\
**Replies:** 1\
**Last updated:** [November 25, 2024, 1:49pm UTC](https://discourse.paraview.org/t/paraview-using-spack/15775 "2024-11-25T13:49:53Z")

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Hi, I have built paraview using spack. How can i access the paraview gui using it? I don’t find any executable, such as ./bin/paraview Thanks

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## [Compute dihedral angel in a polydata](https://discourse.paraview.org/t/compute-dihedral-angel-in-a-polydata/15670)

<div class="topic-metadata">

**Author:** [@Juan\_Jose\_Casafranca](https://discourse.paraview.org/u/Juan_Jose_Casafranca)\
**Replies:** 1\
**Last updated:** [November 5, 2024, 11:02am UTC](https://discourse.paraview.org/t/compute-dihedral-angel-in-a-polydata/15670 "2024-11-05T11:02:15Z")

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I have a surface mesh made of triangle cells. I would like to compute the dihedral angle for each edge in the mesh. I have found the FeatureEdge filter, which must be computing the dihedral angle, but I haven’t find any…

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## [Material emissivity based on variable value](https://discourse.paraview.org/t/material-emissivity-based-on-variable-value/15509)

<div class="topic-metadata">

**Author:** [@Alexandre\_Minot](https://discourse.paraview.org/u/Alexandre_Minot)\
**Replies:** 1\
**Last updated:** [October 7, 2024, 9:17pm UTC](https://discourse.paraview.org/t/material-emissivity-based-on-variable-value/15509 "2024-10-07T21:17:31Z")

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Hello, Is it possible to set the emissivity of an object based on a variable value? It looks like emissive texture can be set by importing a texture file. I don’t understand how to generate texture files, and would lik…

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## [Improving label readability and zoom behavior for graph/extremum visualizations in ParaView](https://discourse.paraview.org/t/improving-label-readability-and-zoom-behavior-for-graph-extremum-visualizations-in-paraview/17558)

<div class="topic-metadata">

**Author:** [@Sahith](https://discourse.paraview.org/u/Sahith)\
**Replies:** 2\
**Last updated:** [May 11, 2026, 8:39am UTC](https://discourse.paraview.org/t/improving-label-readability-and-zoom-behavior-for-graph-extremum-visualizations-in-paraview/17558 "2026-05-11T08:39:51Z")

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Hello, I am exploring ParaView + TTK workflows for graph/topological visualizations (eventually extremum graphs), and I am investigating whether ParaView supports better control of labels and annotations through filters…

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## [write vkthdf file with points only.](https://discourse.paraview.org/t/write-vkthdf-file-with-points-only/16729)

<div class="topic-metadata">

**Author:** [@KS\_HH](https://discourse.paraview.org/u/KS_HH)\
**Replies:** 2\
**Last updated:** [June 2, 2025, 7:07pm UTC](https://discourse.paraview.org/t/write-vkthdf-file-with-points-only/16729 "2025-06-02T19:07:50Z")

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I am trying to understand how to write a vtkhdf file. To that end I tried to make it as simple as possible and write only points with point data. My script looks like this: import h5py as h5 import numpy as np pnts …

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## [probe gradient of FE solution at points inside cell](https://discourse.paraview.org/t/probe-gradient-of-fe-solution-at-points-inside-cell/14520)

<div class="topic-metadata">

**Author:** [@simonw](https://discourse.paraview.org/u/simonw)\
**Replies:** 0\
**Last updated:** [April 30, 2024, 8:45am UTC](https://discourse.paraview.org/t/probe-gradient-of-fe-solution-at-points-inside-cell/14520 "2024-04-30T08:45:34Z")

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data.vtu (1.4 KB) Above vtu file consists of four quad cells and contains a displacement u (vector) and pressure (scalar) field. Bilinear FE basis functions are used for interpolating the nodal values. When I apply gra…

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## [Custom Application Development Solutions](https://discourse.paraview.org/t/custom-application-development-solutions/17452)

<div class="topic-metadata">

**Author:** [@Tarang](https://discourse.paraview.org/u/Tarang)\
**Replies:** 1\
**Last updated:** [February 23, 2026, 12:40pm UTC](https://discourse.paraview.org/t/custom-application-development-solutions/17452 "2026-02-23T12:40:06Z")

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hi all, I am here looking for Custom Application Development Solutions for organization. I also searched this on many different website and found many solutions. We are bit confused to which one to choose. One of my fri…

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## [wslink.launcher: resolve custom fields from query parameter](https://discourse.paraview.org/t/wslink-launcher-resolve-custom-fields-from-query-parameter/17142)

<div class="topic-metadata">

**Author:** [@wulle](https://discourse.paraview.org/u/wulle)\
**Replies:** 1\
**Last updated:** [August 29, 2025, 4:08pm UTC](https://discourse.paraview.org/t/wslink-launcher-resolve-custom-fields-from-query-parameter/17142 "2025-08-29T16:08:15Z")

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Hello, I would like to use wslink in combination with Apache in a Docker container (similar as the premade trame docker setups) to start an application for multiple users with external authentication. As far as I under…

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## [Can someone please help me? How can I visualize FlowSquare datasets using Paraview?](https://discourse.paraview.org/t/can-someone-please-help-me-how-can-i-visualize-flowsquare-datasets-using-paraview/15946)

<div class="topic-metadata">

**Author:** [@ST.Sekkei](https://discourse.paraview.org/u/ST.Sekkei)\
**Replies:** 1\
**Last updated:** [January 6, 2025, 8:46am UTC](https://discourse.paraview.org/t/can-someone-please-help-me-how-can-i-visualize-flowsquare-datasets-using-paraview/15946 "2025-01-06T08:46:41Z")

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Hi everyone, Could anyone please give me some advice on how to visualize Flowsquare datasets using Paraview? I am using a simulation software called Flowsquare and somehow I managed to visualize the result using Paravi…

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## [Extract Cylindrical subset](https://discourse.paraview.org/t/extract-cylindrical-subset/15514)

<div class="topic-metadata">

**Author:** [@RaniaYian](https://discourse.paraview.org/u/RaniaYian)\
**Replies:** 1\
**Last updated:** [October 8, 2024, 9:08am UTC](https://discourse.paraview.org/t/extract-cylindrical-subset/15514 "2024-10-08T09:08:45Z")

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I want to extract a subset of my velocity field in order to do postprocessing. However this subset is a cylinder and not a plane, box, or sphere, for which I could use the Extract Subset filter. This is a printscreen whe…

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## [How to read variable names from Plot3D function file.](https://discourse.paraview.org/t/how-to-read-variable-names-from-plot3d-function-file/14525)

<div class="topic-metadata">

**Author:** [@kstar](https://discourse.paraview.org/u/kstar)\
**Replies:** 0\
**Last updated:** [April 30, 2024, 8:04pm UTC](https://discourse.paraview.org/t/how-to-read-variable-names-from-plot3d-function-file/14525 "2024-04-30T20:04:38Z")

</div>

Hi, I am saving my simulation result consisting of 6 fields in Plot3D format. When I load the grid and function file in ParaView, the fields are named from Function0 to Function5. Is there a way to give custom names to …

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## [Implementing Catalyst in the OVERFLOW solver](https://discourse.paraview.org/t/implementing-catalyst-in-the-overflow-solver/17673)

<div class="topic-metadata">

**Author:** [@Darby\_Vicker](https://discourse.paraview.org/u/Darby_Vicker)\
**Replies:** 2\
**Last updated:** [August 6, 2026, 12:55pm UTC](https://discourse.paraview.org/t/implementing-catalyst-in-the-overflow-solver/17673 "2026-08-06T12:55:16Z")

</div>

Hello, I’m interested in implementing catalyst in the OVERFLOW solver. If anyone has pointers for implementing this in a structured solver written in FORTRAN, please let me know. To get started, I’m working my way th…

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## [Change the title of GUI window using pvpython](https://discourse.paraview.org/t/change-the-title-of-gui-window-using-pvpython/16247)

<div class="topic-metadata">

**Author:** [@Vivek\_Ojha](https://discourse.paraview.org/u/Vivek_Ojha)\
**Replies:** 2\
**Last updated:** [February 27, 2025, 2:41pm UTC](https://discourse.paraview.org/t/change-the-title-of-gui-window-using-pvpython/16247 "2025-02-27T14:41:21Z")

</div>

Hi, While calling paraview using pvpython, is it possible to edit the title of the GUI window where “Paraview” is written by default . Thanks!

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## [2D colour map from .csv](https://discourse.paraview.org/t/2d-colour-map-from-csv/17395)

<div class="topic-metadata">

**Author:** [@Katie795](https://discourse.paraview.org/u/Katie795)\
**Replies:** 1\
**Last updated:** [January 13, 2026, 10:26pm UTC](https://discourse.paraview.org/t/2d-colour-map-from-csv/17395 "2026-01-13T22:26:35Z")

</div>

Hi all, What I am trying to is hopefully (!) very very simple, but I am still struggling to find a solution. I am trying to plot a colour map from a csv file containing columns x, y, z. I would like to have a 2D plot co…

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## [How to integrate data individually over a repeated array of surfaces?](https://discourse.paraview.org/t/how-to-integrate-data-individually-over-a-repeated-array-of-surfaces/16984)

<div class="topic-metadata">

**Author:** [@Dan\_Kam](https://discourse.paraview.org/u/Dan_Kam)\
**Replies:** 1\
**Last updated:** [July 21, 2025, 8:26am UTC](https://discourse.paraview.org/t/how-to-integrate-data-individually-over-a-repeated-array-of-surfaces/16984 "2025-07-21T08:26:16Z")

</div>

Hello, I have grouped multiple surfaces (i have 36 of them that come in an array like geometry, think of multiple cylinders in a row) using GroupedDatasets and selected them using Extract Block. I use integrate variabl…

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## [Bad link to classrom tutorials](https://discourse.paraview.org/t/bad-link-to-classrom-tutorials/15794)

<div class="topic-metadata">

**Author:** [@wascott](https://discourse.paraview.org/u/wascott)\
**Replies:** 1\
**Last updated:** [November 26, 2024, 9:59pm UTC](https://discourse.paraview.org/t/bad-link-to-classrom-tutorials/15794 "2024-11-26T21:59:41Z")

</div>

https://docs.paraview.org/en/latest/Tutorials/ClassroomTutorials/index.html @mwestphal @cory.quammen Why does the link above show as 5.12.0, yet it is to latest? I copied it from paraview.org/ Resources/ Classroom Tut…

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## [Building ParaView Superbuild in parallel](https://discourse.paraview.org/t/building-paraview-superbuild-in-parallel/15293)

<div class="topic-metadata">

**Author:** [@Alexandre\_Minot](https://discourse.paraview.org/u/Alexandre_Minot)\
**Replies:** 1\
**Last updated:** [August 23, 2024, 8:59pm UTC](https://discourse.paraview.org/t/building-paraview-superbuild-in-parallel/15293 "2024-08-23T20:59:56Z")

</div>

Hi, I’m trying to build ParaView and its dependencies using the superbuild, but it is only building on 1 core: \[ 88%\] Performing build step for 'paraview' gmake\[3\]: warning: -j1 forced in submake: resetting jobserver m…

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## [Importing transient simulation with .encas files to Paraview](https://discourse.paraview.org/t/importing-transient-simulation-with-encas-files-to-paraview/16190)

<div class="topic-metadata">

**Author:** [@HWIK](https://discourse.paraview.org/u/HWIK)\
**Replies:** 0\
**Last updated:** [February 18, 2025, 2:55pm UTC](https://discourse.paraview.org/t/importing-transient-simulation-with-encas-files-to-paraview/16190 "2025-02-18T14:55:15Z")

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Hi there, I am still figuring things out in Paraview. I did a CFD transient simulation and exported it to EnSight Gold format (.encas), where each file represents a different timestep. The naming is the same, where only…

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## [duplicate filter context menu option](https://discourse.paraview.org/t/duplicate-filter-context-menu-option/17732)

<div class="topic-metadata">

**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 6\
**Last updated:** [September 16, 2026, 2:35pm UTC](https://discourse.paraview.org/t/duplicate-filter-context-menu-option/17732 "2026-09-16T14:35:48Z")

</div>

hello, context: Sometimes we are using repetitive filters (ie., same type of filters) with changing a single option, eg, same clipping but inverted one to another, or same plane slice but different origin. issue/situat…

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## [Improving python output of paraview with extra toggles](https://discourse.paraview.org/t/improving-python-output-of-paraview-with-extra-toggles/17744)

<div class="topic-metadata">

**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 3\
**Last updated:** [September 28, 2026, 8:51am UTC](https://discourse.paraview.org/t/improving-python-output-of-paraview-with-extra-toggles/17744 "2026-09-28T08:51:49Z")

</div>

the feature request is toggle to save comments (on/off to save comments or not) or drop-down menu with ‘save comment and empty lines/save comments/save empty lines/remove extra lines’ the idea is self explanatory, as we …

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## [DataArray with NumberOfComponents=2 not recongnized as vector](https://discourse.paraview.org/t/dataarray-with-numberofcomponents-2-not-recongnized-as-vector/15272)

<div class="topic-metadata">

**Author:** [@FrancisGiraldeau](https://discourse.paraview.org/u/FrancisGiraldeau)\
**Replies:** 2\
**Last updated:** [August 22, 2024, 11:04am UTC](https://discourse.paraview.org/t/dataarray-with-numberofcomponents-2-not-recongnized-as-vector/15272 "2024-08-22T11:04:19Z")

</div>

Here is un unstructured grid with a scalar field and its gradient, which is a vector field with two components. The data loads fine, and the vector data seems correct, but all filters that require a vector input are disa…

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## [ParaView 5.13 crashes when loading trackingFromCriticalPoints.pvsm (TTK example)](https://discourse.paraview.org/t/paraview-5-13-crashes-when-loading-trackingfromcriticalpoints-pvsm-ttk-example/16177)

<div class="topic-metadata">

**Author:** [@Ali01](https://discourse.paraview.org/u/Ali01)\
**Replies:** 0\
**Last updated:** [February 14, 2025, 1:37pm UTC](https://discourse.paraview.org/t/paraview-5-13-crashes-when-loading-trackingfromcriticalpoints-pvsm-ttk-example/16177 "2025-02-14T13:37:50Z")

</div>

Hello, I am trying to run the Tracking From Critical Points example from the TTK website. I use this command “paraview states/trackingFromCriticalPoints.pvsm”. But, ParaView crashes immediately after loading the state …

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## [DescriptiveStatistics for Vectors - how to get stats for the norm?](https://discourse.paraview.org/t/descriptivestatistics-for-vectors-how-to-get-stats-for-the-norm/14492)

<div class="topic-metadata">

**Author:** [@Trophime](https://discourse.paraview.org/u/Trophime)\
**Replies:** 0\
**Last updated:** [April 25, 2024, 6:08pm UTC](https://discourse.paraview.org/t/descriptivestatistics-for-vectors-how-to-get-stats-for-the-norm/14492 "2024-04-25T18:08:02Z")

</div>

Hi, I’m trying to get some statistics about a vector field using DescriptiveStatistics filter. It seems that I get the stats per component of the vector. I would like to have also stats on the norm of the vector field…

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## [Create a discrete visualizationscale with differen](https://discourse.paraview.org/t/create-a-discrete-visualizationscale-with-differen/14378)

<div class="topic-metadata">

**Author:** [@Hammerstale](https://discourse.paraview.org/u/Hammerstale)\
**Replies:** 0\
**Last updated:** [April 10, 2024, 3:30pm UTC](https://discourse.paraview.org/t/create-a-discrete-visualizationscale-with-differen/14378 "2024-04-10T15:30:23Z")

</div>

Hi, I did a flow simulation in a pipeline network and I would like to be able to present the results is a really understable way. Based on the flow speed in each part of the pipeline network, different kinds of valve w…

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