# Top

**URL:** https://discourse.paraview.org/top.md?page=172&period=all

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**Page:** 173

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## [Avoid plotting region boundary points when using a clip by scalar](https://discourse.paraview.org/t/avoid-plotting-region-boundary-points-when-using-a-clip-by-scalar/17517)

<div class="topic-metadata">

**Author:** [@cdelavegamartin](https://discourse.paraview.org/u/cdelavegamartin)\
**Replies:** 2\
**Last updated:** [April 8, 2026, 5:07pm UTC](https://discourse.paraview.org/t/avoid-plotting-region-boundary-points-when-using-a-clip-by-scalar/17517 "2026-04-08T17:07:47Z")

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I have data on a structured grid, and I want to visualise which points on my have certain conditions and how they evolve through time. The problem is that visualising with points or point gaussian, also adds some “bounda…

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## [ParaView Office Hours May 14, 2026](https://discourse.paraview.org/t/paraview-office-hours-may-14-2026/17561)

<div class="topic-metadata">

**Author:** [@Bob\_Obara](https://discourse.paraview.org/u/Bob_Obara)\
**Replies:** 1\
**Last updated:** [May 14, 2026, 7:44pm UTC](https://discourse.paraview.org/t/paraview-office-hours-may-14-2026/17561 "2026-05-14T19:44:46Z")

</div>

Have a question about how to use ParaView? Ask ParaView experts at this week’s office hours! Time: Thursday, May 14 · 3:30 – 5:00pm Time zone: America/New\_York Google Meet joining info Video call link: https://meet.go…

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## [issues with displaying data in pvbatch with colorbars and legends](https://discourse.paraview.org/t/issues-with-displaying-data-in-pvbatch-with-colorbars-and-legends/16925)

<div class="topic-metadata">

**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 1\
**Last updated:** [July 23, 2025, 2:58pm UTC](https://discourse.paraview.org/t/issues-with-displaying-data-in-pvbatch-with-colorbars-and-legends/16925 "2025-07-23T14:58:02Z")

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Hello, Instead of using everytime the trace function, i have a base script that outlines the workflow that i do and when i need a new workflow, i base myself on this script and modify it. this is working like a charm fo…

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## [Help with obtaining a binary mask from Polygon Mesh](https://discourse.paraview.org/t/help-with-obtaining-a-binary-mask-from-polygon-mesh/16592)

<div class="topic-metadata">

**Author:** [@Martin\_Kozar](https://discourse.paraview.org/u/Martin_Kozar)\
**Replies:** 1\
**Last updated:** [May 18, 2025, 3:33pm UTC](https://discourse.paraview.org/t/help-with-obtaining-a-binary-mask-from-polygon-mesh/16592 "2025-05-18T15:33:18Z")

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Hi everyone! I am brand new to using ParaView. My version is 5.10.1. I have downloaded the data from Dataset for modeling of a multiscale human cerebrovasculature where this group created a cerebral vasculature model I w…

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## [type hints](https://discourse.paraview.org/t/type-hints/13647)

<div class="topic-metadata">

**Author:** [@untereiner](https://discourse.paraview.org/u/untereiner)\
**Replies:** 0\
**Last updated:** [January 8, 2024, 3:14pm UTC](https://discourse.paraview.org/t/type-hints/13647 "2024-01-08T15:14:30Z")

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Hi, Is it possible to have type hints for paraview more precisely the decorators ? I am using vtkmodules.all to have those for vtk Mypy is complaining and I would like to not use # type: ignore Thanks in advance !

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## [PolyData vtp XML file, problems assigning Custom Properties to cells](https://discourse.paraview.org/t/polydata-vtp-xml-file-problems-assigning-custom-properties-to-cells/17201)

<div class="topic-metadata">

**Author:** [@Dumisani\_D](https://discourse.paraview.org/u/Dumisani_D)\
**Replies:** 2\
**Last updated:** [September 25, 2025, 9:50am UTC](https://discourse.paraview.org/t/polydata-vtp-xml-file-problems-assigning-custom-properties-to-cells/17201 "2025-09-25T09:50:12Z")

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Hi Community, I am having a challenge loading a .vtp file in Paraview. The attached .vtp file below has 6 Polygons, their corresponding points and cells. The mesh loads correctly when I ommit the CellData tag, however, …

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## [vtkExodusIIReader: How to Output a Partitioned Dataset Instead of a Multiblock](https://discourse.paraview.org/t/vtkexodusiireader-how-to-output-a-partitioned-dataset-instead-of-a-multiblock/17043)

<div class="topic-metadata">

**Author:** [@GeoMomo](https://discourse.paraview.org/u/GeoMomo)\
**Replies:** 2\
**Last updated:** [August 4, 2025, 3:41pm UTC](https://discourse.paraview.org/t/vtkexodusiireader-how-to-output-a-partitioned-dataset-instead-of-a-multiblock/17043 "2025-08-04T15:41:57Z")

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Dear All, This post follows up on Mathieu Westphal’s publication regarding the transition from multiblock structures to partitioned datasets: (Transition from multiblock to partitioned datasets in VTK and ParaView, a co…

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## [CMake Error: Unknown Command c\_install\_targets When Configuring Catalyst2](https://discourse.paraview.org/t/cmake-error-unknown-command-c-install-targets-when-configuring-catalyst2/15773)

<div class="topic-metadata">

**Author:** [@Bhavesh](https://discourse.paraview.org/u/Bhavesh)\
**Replies:** 2\
**Last updated:** [February 26, 2025, 7:35pm UTC](https://discourse.paraview.org/t/cmake-error-unknown-command-c-install-targets-when-configuring-catalyst2/15773 "2025-02-26T19:35:20Z")

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Hi everyone, I am trying to build Catalyst2 from the source code on a Windows 10 system using the following setup: CMake Version: 3.31.0 Paraview Version: 5.12.1 Generator: Ninja Compilers: GNU 14.1.0 Source Directory:…

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## [Python plugin split into multiple modules](https://discourse.paraview.org/t/python-plugin-split-into-multiple-modules/16100)

<div class="topic-metadata">

**Author:** [@marek.paty](https://discourse.paraview.org/u/marek.paty)\
**Replies:** 2\
**Last updated:** [February 4, 2025, 9:02am UTC](https://discourse.paraview.org/t/python-plugin-split-into-multiple-modules/16100 "2025-02-04T09:02:49Z")

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I am using ParaView 5.13 on linux and I would like to create a Python plugin which consists of multiple modules. The purpose is to make the structure better organized and to be able to reuse the different modules in othe…

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## [Integrate multiblock](https://discourse.paraview.org/t/integrate-multiblock/15492)

<div class="topic-metadata">

**Author:** [@samos9877](https://discourse.paraview.org/u/samos9877)\
**Replies:** 1\
**Last updated:** [October 4, 2024, 7:32am UTC](https://discourse.paraview.org/t/integrate-multiblock/15492 "2024-10-04T07:32:38Z")

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I have the same issue. The extracted selection (multiblock dataset) is populated with all the points and data arrays of interest, but the integration returns zero. If I isolate the geometry via threshold, the integration…

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## [Cannot link with custom widget](https://discourse.paraview.org/t/cannot-link-with-custom-widget/14373)

<div class="topic-metadata">

**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 1\
**Last updated:** [April 17, 2024, 9:12am UTC](https://discourse.paraview.org/t/cannot-link-with-custom-widget/14373 "2024-04-17T09:12:28Z")

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Hello dear Paraview developers! I have added my custom widget to Qt/ApplicationComponents Then I tried to edit cmake in my plugin: include\_directories(${CMAKE\_CURRENT\_SOURCE\_DIR}/../../Qt/ApplicationComponents) includ…

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## [Confusion about using the PVD reader from Python](https://discourse.paraview.org/t/confusion-about-using-the-pvd-reader-from-python/17658)

<div class="topic-metadata">

**Author:** [@CsatiZoltan](https://discourse.paraview.org/u/CsatiZoltan)\
**Replies:** 3\
**Last updated:** [August 6, 2026, 6:57pm UTC](https://discourse.paraview.org/t/confusion-about-using-the-pvd-reader-from-python/17658 "2026-08-06T18:57:27Z")

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I want to read a .pvd file from within a Python algorithm, and pass the underlying object (in my case a vtkMultiBlockDataSet) to an output port of my filter. So that my plugin be self-contained, I do not open the file wi…

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## [pvserver cmake flag?](https://discourse.paraview.org/t/pvserver-cmake-flag/15366)

<div class="topic-metadata">

**Author:** [@wsherman](https://discourse.paraview.org/u/wsherman)\
**Replies:** 3\
**Last updated:** [September 10, 2024, 2:03pm UTC](https://discourse.paraview.org/t/pvserver-cmake-flag/15366 "2024-09-10T14:03:57Z")

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Hey Everyone, We’re working on a bit of a crossover effort between ParaView and LidarView where we’d like to have access to some ParaView features while using LidarView. One specific case is that we’d like to connect L…

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## [Fetch Server Configurations Dialog is blank](https://discourse.paraview.org/t/fetch-server-configurations-dialog-is-blank/15227)

<div class="topic-metadata">

**Author:** [@Kenneth\_Moreland](https://discourse.paraview.org/u/Kenneth_Moreland)\
**Replies:** 5\
**Last updated:** [August 15, 2024, 4:13pm UTC](https://discourse.paraview.org/t/fetch-server-configurations-dialog-is-blank/15227 "2024-08-15T16:13:01Z")

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On my install of ParaView (5.12.1, Mac ARM, Kitware download), the fetch server configurations dialog is blank. When I click on Fetch Servers, the resulting dialog box is empty. If I then click on the Edit Sources bu…

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## [Generate Action Potential Graph with Paraview and Plotly in Trame](https://discourse.paraview.org/t/generate-action-potential-graph-with-paraview-and-plotly-in-trame/15077)

<div class="topic-metadata">

**Author:** [@Rafaelrr5](https://discourse.paraview.org/u/Rafaelrr5)\
**Replies:** 1\
**Last updated:** [August 6, 2024, 4:28pm UTC](https://discourse.paraview.org/t/generate-action-potential-graph-with-paraview-and-plotly-in-trame/15077 "2024-08-06T16:28:35Z")

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I’m trying to generate a graph view in my trame app using paraview functions, but I’m kinda lost. My code is below; I have the function to select a cell to get it’s action potential and the part that should show it on s…

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## [Transfert PointData from mesh to another](https://discourse.paraview.org/t/transfert-pointdata-from-mesh-to-another/14835)

<div class="topic-metadata">

**Author:** [@Uraeus](https://discourse.paraview.org/u/Uraeus)\
**Replies:** 1\
**Last updated:** [June 13, 2024, 11:38am UTC](https://discourse.paraview.org/t/transfert-pointdata-from-mesh-to-another/14835 "2024-06-13T11:38:43Z")

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Hello Everybody, I need some help please. I have two similar meshes A and B with a temperature PointData TA (define on A) and TB (define on B). I need to calculate (TA-TB) and show it on A mesh for example. I tried wit…

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## [How to make a selection of spheres of another size than default?](https://discourse.paraview.org/t/how-to-make-a-selection-of-spheres-of-another-size-than-default/14654)

<div class="topic-metadata">

**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 1\
**Last updated:** [May 21, 2024, 7:41am UTC](https://discourse.paraview.org/t/how-to-make-a-selection-of-spheres-of-another-size-than-default/14654 "2024-05-21T07:41:34Z")

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Hello dear Paraview developers! Could you please explain how to make a selection of points which would look like visible spheres, not small points? Best regards, Mike A.

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## [Export data in .plt or .encas](https://discourse.paraview.org/t/export-data-in-plt-or-encas/17436)

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**Author:** [@Captain\_Convergence](https://discourse.paraview.org/u/Captain_Convergence)\
**Replies:** 2\
**Last updated:** [February 10, 2026, 5:57pm UTC](https://discourse.paraview.org/t/export-data-in-plt-or-encas/17436 "2026-02-10T17:57:19Z")

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I wanted to know if it is possible to export data into .plt (TECPLOT) or .encas (ENSIGHT) format after I have manipulated it (i.e. computed new quantities in calculators, created slices, etc…). The reason for this is tha…

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## [Adding configurable paraview resource\_dir](https://discourse.paraview.org/t/adding-configurable-paraview-resource-dir/17018)

<div class="topic-metadata">

**Author:** [@qbisi](https://discourse.paraview.org/u/qbisi)\
**Replies:** 2\
**Last updated:** [August 4, 2025, 2:40pm UTC](https://discourse.paraview.org/t/adding-configurable-paraview-resource-dir/17018 "2025-08-04T14:40:31Z")

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I am building ParaView with an external VTK. Everything looks fine, except that ParaView cannot find the documentation or examples. I investigated a bit into the function: std::string vtkPVFileInformation::GetParaViewS…

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## [Server side plugin example](https://discourse.paraview.org/t/server-side-plugin-example/16549)

<div class="topic-metadata">

**Author:** [@florezg](https://discourse.paraview.org/u/florezg)\
**Replies:** 2\
**Last updated:** [April 29, 2025, 1:08pm UTC](https://discourse.paraview.org/t/server-side-plugin-example/16549 "2025-04-29T13:08:55Z")

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Is there a server side plugin example in Python or C++? I wonder if there is a trivial example to understand the basics about developing a server (distributed) plugin version in Python. In particular, the usage of the ex…

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## [open several med file with python script](https://discourse.paraview.org/t/open-several-med-file-with-python-script/15280)

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**Author:** [@dim14](https://discourse.paraview.org/u/dim14)\
**Replies:** 2\
**Last updated:** [August 23, 2024, 1:59pm UTC](https://discourse.paraview.org/t/open-several-med-file-with-python-script/15280 "2024-08-23T13:59:42Z")

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Hello I’m trying to write a script which can open several .med files and show their Mdepl characteristic an example of a such file can be download here : https://unicloud.unicaen.fr/index.php/s/et98DmfRAKNpi8b To reac…

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## [How to make this image stand out more? ](https://discourse.paraview.org/t/how-to-make-this-image-stand-out-more/14129)

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**Author:** [@Jslaten](https://discourse.paraview.org/u/Jslaten)\
**Replies:** 0\
**Last updated:** [March 11, 2024, 4:12pm UTC](https://discourse.paraview.org/t/how-to-make-this-image-stand-out-more/14129 "2024-03-11T16:12:20Z")

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Hi Paraviewers, I think I have an decent grasp of paraview, but what I really wanted was to have any advice on how to make this image more visually appealing? I am not super concerned about physics or some scientific me…

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## ["From a ParaView visualization to an interactive trame app" - Free Webinar](https://discourse.paraview.org/t/from-a-paraview-visualization-to-an-interactive-trame-app-free-webinar/17751)

<div class="topic-metadata">

**Author:** [@NickBearup](https://discourse.paraview.org/u/NickBearup)\
**Replies:** 0\
**Last updated:** [September 29, 2026, 7:29pm UTC](https://discourse.paraview.org/t/from-a-paraview-visualization-to-an-interactive-trame-app-free-webinar/17751 "2026-09-29T19:29:35Z")

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Next week, on October 7th, from 12:00pm - 1:00pm ET, Kitware’s Sebastien Jourdain and Cory Quammen will be hosting “From a ParaView visualization to an interactive trame application”. The webinar will demonstrate how to…

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## [Paraview conflicting with local Python installation](https://discourse.paraview.org/t/paraview-conflicting-with-local-python-installation/16582)

<div class="topic-metadata">

**Author:** [@ar505](https://discourse.paraview.org/u/ar505)\
**Replies:** 1\
**Last updated:** [May 14, 2025, 1:29pm UTC](https://discourse.paraview.org/t/paraview-conflicting-with-local-python-installation/16582 "2025-05-14T13:29:58Z")

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I have a case where I cannot run paraview server manager commands from Python Shell in Paraview where there is local Python installation. When I load a case and enter the command GetActiveSource() , it will fail. If I re…

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## [Trouble Using Interact() Method](https://discourse.paraview.org/t/trouble-using-interact-method/15902)

<div class="topic-metadata">

**Author:** [@Brian\_Hagewiesche](https://discourse.paraview.org/u/Brian_Hagewiesche)\
**Replies:** 3\
**Last updated:** [January 3, 2025, 8:43am UTC](https://discourse.paraview.org/t/trouble-using-interact-method/15902 "2025-01-03T08:43:30Z")

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I am currently working on a python script to perform some operations as a macro. For part of it I want the user to define a cutting plane visually, as in be able to move around the plane the way you might be able to do s…

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## [Paraview instantly crashing when trying to do anything with \*.sgy files](https://discourse.paraview.org/t/paraview-instantly-crashing-when-trying-to-do-anything-with-sgy-files/15637)

<div class="topic-metadata">

**Author:** [@Rbbric](https://discourse.paraview.org/u/Rbbric)\
**Replies:** 3\
**Last updated:** [October 28, 2024, 6:13am UTC](https://discourse.paraview.org/t/paraview-instantly-crashing-when-trying-to-do-anything-with-sgy-files/15637 "2024-10-28T06:13:36Z")

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Hi there, I am completely new to Paraview, and am hoping to use it for my Masters work. I am trying to work with \*.sgy files. Whether it’s attempting to visualise it in the 3D space, or updating the properties, my compu…

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## [connectivity wrong results?](https://discourse.paraview.org/t/connectivity-wrong-results/17433)

<div class="topic-metadata">

**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 6\
**Last updated:** [February 10, 2026, 1:51pm UTC](https://discourse.paraview.org/t/connectivity-wrong-results/17433 "2026-02-10T13:51:43Z")

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Hello, I THINK it is a bug, but not sure, therefore before making an issue i would like some developers input (not sure what are the exact specific steps that generates the problem in the pipeline): use wavelet source …

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## [How to extract the boundary surfaces from a Ensight .case file?](https://discourse.paraview.org/t/how-to-extract-the-boundary-surfaces-from-a-ensight-case-file/14952)

<div class="topic-metadata">

**Author:** [@Phil](https://discourse.paraview.org/u/Phil)\
**Replies:** 2\
**Last updated:** [June 29, 2024, 1:59am UTC](https://discourse.paraview.org/t/how-to-extract-the-boundary-surfaces-from-a-ensight-case-file/14952 "2024-06-29T01:59:08Z")

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Hi everyone, I am a PV newer and used to work with Ensight, they are so different from each other… I cannot even extract the boundary surfaces of Ensight files in PV. Many filters has been tried but useless. Is there a…

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## [With PV 5.12.0, the code of property widgets does not properly receive updated selections](https://discourse.paraview.org/t/with-pv-5-12-0-the-code-of-property-widgets-does-not-properly-receive-updated-selections/14850)

<div class="topic-metadata">

**Author:** [@cobo](https://discourse.paraview.org/u/cobo)\
**Replies:** 2\
**Last updated:** [June 14, 2024, 3:07pm UTC](https://discourse.paraview.org/t/with-pv-5-12-0-the-code-of-property-widgets-does-not-properly-receive-updated-selections/14850 "2024-06-14T15:07:23Z")

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This potential ParaView bug is observed inside the code of a property widget that belongs to some self-written filter plugin. The same property widget worked fine in versions of ParaView up to 5.10, but not any more with…

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## [camera undo/redo -\> render undo/redo](https://discourse.paraview.org/t/camera-undo-redo-render-undo-redo/17693)

<div class="topic-metadata">

**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 4\
**Last updated:** [August 24, 2026, 1:41pm UTC](https://discourse.paraview.org/t/camera-undo-redo-render-undo-redo/17693 "2026-08-24T13:41:54Z")

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hello, I make this feature request in the follow up of different UI improvements. proposal: Currently there is a undo/redo on the renderviewer for the camera. it would be great if instead of being only camera, it would…

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## [PV5.12 XMF2 Reader Array Issue](https://discourse.paraview.org/t/pv5-12-xmf2-reader-array-issue/14646)

<div class="topic-metadata">

**Author:** [@theodorebaltis](https://discourse.paraview.org/u/theodorebaltis)\
**Replies:** 1\
**Last updated:** [May 17, 2024, 7:13am UTC](https://discourse.paraview.org/t/pv5-12-xmf2-reader-array-issue/14646 "2024-05-17T07:13:56Z")

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Looks like a bug with the XMF2 reader in ParaView 5.12 Load a dataset, turn off all point/cell arrays, and hit ‘apply’. Then look at the coloring options and all of the arrays are still available (and display correctly …

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## [extracting section of grid by specific values of field](https://discourse.paraview.org/t/extracting-section-of-grid-by-specific-values-of-field/17424)

<div class="topic-metadata">

**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 3\
**Last updated:** [February 3, 2026, 8:21am UTC](https://discourse.paraview.org/t/extracting-section-of-grid-by-specific-values-of-field/17424 "2026-02-03T08:21:57Z")

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Hello, I am have a specific need (in python): lets say i have a grid, with pressure values, and i want to extract the section where the pressure has specific values, \[1,2,5\] without other values, so threshold is out of …

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## [particle path, wrong ordering?](https://discourse.paraview.org/t/particle-path-wrong-ordering/16774)

<div class="topic-metadata">

**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 3\
**Last updated:** [June 4, 2025, 11:13am UTC](https://discourse.paraview.org/t/particle-path-wrong-ordering/16774 "2025-06-04T11:13:39Z")

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Hello, i have a multiphase simulation in OpenFOAM and would like to use particle path over it. I wanted to recreate the same workflow as stream line from custom source but i am getting really wrong results. I am using …

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## [Set mathtext font (computer modern, latex)](https://discourse.paraview.org/t/set-mathtext-font-computer-modern-latex/16677)

<div class="topic-metadata">

**Author:** [@jluebke](https://discourse.paraview.org/u/jluebke)\
**Replies:** 0\
**Last updated:** [May 21, 2025, 7:38am UTC](https://discourse.paraview.org/t/set-mathtext-font-computer-modern-latex/16677 "2025-05-21T07:38:49Z")

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I would like to use the Computer Modern (cm) font in Paraview for Latex math rendering, but this solution, i.e. editing the matplotlibrc file, does not work for me. Troubleshooting: edit C:\\Users\\user\\.matplotlib\\matp…

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## [XDMF Hyper Slabs:](https://discourse.paraview.org/t/xdmf-hyper-slabs/14679)

<div class="topic-metadata">

**Author:** [@ramen\_newdals](https://discourse.paraview.org/u/ramen_newdals)\
**Replies:** 0\
**Last updated:** [May 20, 2024, 10:51pm UTC](https://discourse.paraview.org/t/xdmf-hyper-slabs/14679 "2024-05-20T22:51:47Z")

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Hello All, I have temporal data that was broken into many smaller .h5 files, but due to running out of file limits on shared storage they have been merged into a single large .h5 file with the hope that individual time-…

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## [How to make Selection from C++ visible?](https://discourse.paraview.org/t/how-to-make-selection-from-c-visible/13923)

<div class="topic-metadata">

**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 0\
**Last updated:** [February 13, 2024, 12:08pm UTC](https://discourse.paraview.org/t/how-to-make-selection-from-c-visible/13923 "2024-02-13T12:08:13Z")

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Hello dear Paraview developers! I have used the following code to select the points by IDs from the custom widget vtkSelection\* sel = vtkSelection::New(); vtkNew\<vtkIdTypeArray\> ids; ids-\>SetNumberOfCompone…

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## [Averaged Cross\_Section Velocity](https://discourse.paraview.org/t/averaged-cross-section-velocity/13841)

<div class="topic-metadata">

**Author:** [@scabo](https://discourse.paraview.org/u/scabo)\
**Replies:** 0\
**Last updated:** [February 1, 2024, 12:13pm UTC](https://discourse.paraview.org/t/averaged-cross-section-velocity/13841 "2024-02-01T12:13:34Z")

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Hi, I am trying to find out the averaged cross-sectional velocity in a pipe flow. I have attached the figure. DO I need to integrate the variables by using the ‘integrate variable’ tool in paraview and then divide by…

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## [What's the best alternative for VizSchema?](https://discourse.paraview.org/t/whats-the-best-alternative-for-vizschema/16887)

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**Author:** [@apadana](https://discourse.paraview.org/u/apadana)\
**Replies:** 2\
**Last updated:** [July 3, 2025, 8:39am UTC](https://discourse.paraview.org/t/whats-the-best-alternative-for-vizschema/16887 "2025-07-03T08:39:56Z")

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I’ve developed some code which creates HDF5 files with VizSchema metadata. Unlike VisIt, the support of VizSchema in ParaView is not complete and optimal. For example, each mesh can have an optional attribute named “vsAx…

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## [Editable Name in Selection Editor](https://discourse.paraview.org/t/editable-name-in-selection-editor/16799)

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**Author:** [@SRudinsky](https://discourse.paraview.org/u/SRudinsky)\
**Replies:** 2\
**Last updated:** [June 13, 2025, 7:55am UTC](https://discourse.paraview.org/t/editable-name-in-selection-editor/16799 "2025-06-13T07:55:08Z")

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Request for the ability to edit the name of selections in the Selection Editor.

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## [Filter to detect and treat outliers in field data](https://discourse.paraview.org/t/filter-to-detect-and-treat-outliers-in-field-data/16272)

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**Author:** [@simonw](https://discourse.paraview.org/u/simonw)\
**Replies:** 2\
**Last updated:** [March 9, 2025, 3:35pm UTC](https://discourse.paraview.org/t/filter-to-detect-and-treat-outliers-in-field-data/16272 "2025-03-09T15:35:38Z")

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I have 2d measurement data (x,y,u) which have some outliers, see e.g the highlighted regions below. To reproduce my picture, Table2Points and Delaunay2d needs to be applied to the attached file. Is there any filter to d…

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## [Parameter study with multiple files](https://discourse.paraview.org/t/parameter-study-with-multiple-files/17003)

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**Author:** [@Massimiliano\_Leoni](https://discourse.paraview.org/u/Massimiliano_Leoni)\
**Replies:** 1\
**Last updated:** [July 24, 2025, 11:57am UTC](https://discourse.paraview.org/t/parameter-study-with-multiple-files/17003 "2025-07-24T11:57:53Z")

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Hello, I am trying to perform what I call a “parameter study” or “parameter sweep” for a model I’m studying. I am aware of parameter studies with comparative views but that is somehow orthogonal to what I want to do in …

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## [How do I delete all datasets with one click?](https://discourse.paraview.org/t/how-do-i-delete-all-datasets-with-one-click/16474)

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**Author:** [@PetrKryslUCSD](https://discourse.paraview.org/u/PetrKryslUCSD)\
**Replies:** 1\
**Last updated:** [April 15, 2025, 3:44pm UTC](https://discourse.paraview.org/t/how-do-i-delete-all-datasets-with-one-click/16474 "2025-04-15T15:44:28Z")

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Selecting all datasets and choosing delete deletes only one of them. How do I delete all of them?

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## [Paraview crashes every time when reading cell data of plt file](https://discourse.paraview.org/t/paraview-crashes-every-time-when-reading-cell-data-of-plt-file/15737)

<div class="topic-metadata">

**Author:** [@Iamcannon](https://discourse.paraview.org/u/Iamcannon)\
**Replies:** 1\
**Last updated:** [November 18, 2024, 9:12am UTC](https://discourse.paraview.org/t/paraview-crashes-every-time-when-reading-cell-data-of-plt-file/15737 "2024-11-18T09:12:06Z")

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Hi there, Like the title suggests, paraview can’t load cell array of plt file, regardless of whether the plt file is large or not. It just crashed without any error. The version I am using is 5.13.1 both win and linux,…

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## [Integrate variables on streamtube surface](https://discourse.paraview.org/t/integrate-variables-on-streamtube-surface/15545)

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**Author:** [@Swantje](https://discourse.paraview.org/u/Swantje)\
**Replies:** 1\
**Last updated:** [November 11, 2024, 6:55am UTC](https://discourse.paraview.org/t/integrate-variables-on-streamtube-surface/15545 "2024-11-11T06:55:06Z")

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Hey, from a 3D velocity and temperature field I would like to generate a streamtube and integrate the temperature over its surface. I have a hot jet entering a colder region and have generated streamlines with a custom…

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## [Managing proxies from C++](https://discourse.paraview.org/t/managing-proxies-from-c/13919)

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**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 0\
**Last updated:** [February 13, 2024, 9:09am UTC](https://discourse.paraview.org/t/managing-proxies-from-c/13919 "2024-02-13T09:09:04Z")

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Hello dear Paraview developers! Could you please explain me, why such a snippet does not work? vtkSMSession\* session = vtkSMSession::New(); vtkSMSessionProxyManager\* pxm = session-\>GetSessionProxyManager(); vtkSmartPo…

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## [programmable filter rectilinear to unstructured](https://discourse.paraview.org/t/programmable-filter-rectilinear-to-unstructured/13878)

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**Author:** [@Ronan](https://discourse.paraview.org/u/Ronan)\
**Replies:** 0\
**Last updated:** [February 5, 2024, 11:40pm UTC](https://discourse.paraview.org/t/programmable-filter-rectilinear-to-unstructured/13878 "2024-02-05T23:40:19Z")

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I am trying to apply a filter to change altitude from a netcdf input file according to a 3d variable present in the file. I am followed this example applying this code import numpy as np # Obtenez l'entrée (le jeu d…

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## [Irregular problem with widget invoking server procedures](https://discourse.paraview.org/t/irregular-problem-with-widget-invoking-server-procedures/13698)

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**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 0\
**Last updated:** [January 15, 2024, 9:36am UTC](https://discourse.paraview.org/t/irregular-problem-with-widget-invoking-server-procedures/13698 "2024-01-15T09:36:26Z")

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Hello I have a need for a widget, which receives non-default values, derived from the data file. I have followed your e-mail instruction on invoking remote procedures on the server side, and in constructor of the widg…

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## [Saving data from CfdOF FreeCAD add-on in a usable manner](https://discourse.paraview.org/t/saving-data-from-cfdof-freecad-add-on-in-a-usable-manner/17649)

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**Author:** [@mpals](https://discourse.paraview.org/u/mpals)\
**Replies:** 2\
**Last updated:** [July 7, 2026, 1:00am UTC](https://discourse.paraview.org/t/saving-data-from-cfdof-freecad-add-on-in-a-usable-manner/17649 "2026-07-07T01:00:41Z")

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Hello, I’m having an issue with saving data created with the CfdOF add-on in FreeCAD. After my simulation finishes, I can open the data in ParaView just fine. However, I have been unable to save it in such a way that I …

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## [homogenize fields between python and spreadsheet](https://discourse.paraview.org/t/homogenize-fields-between-python-and-spreadsheet/17580)

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**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 3\
**Last updated:** [June 9, 2026, 2:28pm UTC](https://discourse.paraview.org/t/homogenize-fields-between-python-and-spreadsheet/17580 "2026-06-09T14:28:04Z")

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Hello, i would like to ask for the homogenization of what we ‘see’ on the spreadsheet and what we ‘use’ in python (regarding the names of fields). one example of this is ‘Point Id’, i wanted to use it: QuerySelect(Quer…

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## [Run a query on one block](https://discourse.paraview.org/t/run-a-query-on-one-block/16098)

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**Author:** [@jeDuck](https://discourse.paraview.org/u/jeDuck)\
**Replies:** 3\
**Last updated:** [February 7, 2025, 8:35am UTC](https://discourse.paraview.org/t/run-a-query-on-one-block/16098 "2025-02-07T08:35:58Z")

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Dear Paraview developers, is it possible in Paraview to create a query-based selection on a set of blocks? For example, I have a multiblock, consisting of two blocks and I want to find point with maximum value in a sing…

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