# Top

**URL:** https://discourse.paraview.org/top.md?page=6

[Latest](https://discourse.paraview.org/latest.md) · [Categories](https://discourse.paraview.org/categories.md) · [Tags](https://discourse.paraview.org/tags.md)

**Page:** 7

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## [Python to find an extent](https://discourse.paraview.org/t/python-to-find-an-extent/17653)

<div class="topic-metadata">

**Author:** [@wascott](https://discourse.paraview.org/u/wascott)\
**Replies:** 5\
**Last updated:** [July 21, 2026, 9:31pm UTC](https://discourse.paraview.org/t/python-to-find-an-extent/17653 "2026-07-21T21:31:05Z")

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Hi guys, What is the python to find information in the information tab? My user is specifically looking for the extents or bounds. Thanks, Alan

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## [Core dumps "often"](https://discourse.paraview.org/t/core-dumps-often/17735)

<div class="topic-metadata">

**Author:** [@Bismuth-tetser.93](https://discourse.paraview.org/u/Bismuth-tetser.93)\
**Replies:** 6\
**Last updated:** [September 23, 2026, 8:56pm UTC](https://discourse.paraview.org/t/core-dumps-often/17735 "2026-09-23T20:56:15Z")

</div>

Not sure how to report this bug(s)… but I get core dumps now and then. I just got one by dragging my mouse in the rendered view of my data. I had started Paraview with the terminal. This is what I see: \[openvkl\] applica…

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## [ParaView Office Hours October 16, 2025](https://discourse.paraview.org/t/paraview-office-hours-october-16-2025/17246)

<div class="topic-metadata">

**Author:** [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)\
**Replies:** 0\
**Last updated:** [October 16, 2025, 7:31pm UTC](https://discourse.paraview.org/t/paraview-office-hours-october-16-2025/17246 "2025-10-16T19:31:28Z")

</div>

Kitware will be holding ParaView Office Hours again starting now, 3:30pm ET on Thursday, October 16, 2025. The public meeting information is:ParaView office hours Thursday, October 16 · 3:30 – 5:00pm ET Google Meet jo…

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## [Custom Glyph orientation after Transform causes unexpected lighting behavior](https://discourse.paraview.org/t/custom-glyph-orientation-after-transform-causes-unexpected-lighting-behavior/17670)

<div class="topic-metadata">

**Author:** [@pfahd](https://discourse.paraview.org/u/pfahd)\
**Replies:** 8\
**Last updated:** [August 25, 2026, 12:26pm UTC](https://discourse.paraview.org/t/custom-glyph-orientation-after-transform-causes-unexpected-lighting-behavior/17670 "2026-08-25T12:26:31Z")

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I am trying to visualize a Janus particle using Sphere-Surface-Glyph in ParaView. My goal is to create a hemisphere/sphere glyph whose symmetry axis is aligned with the Z-axis. I noticed that ParaView Glyph orientation a…

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## [What’s New in VTK 9.6 - Free Release Webinar](https://discourse.paraview.org/t/what-s-new-in-vtk-9-6-free-release-webinar/17524)

<div class="topic-metadata">

**Author:** [@NickBearup](https://discourse.paraview.org/u/NickBearup)\
**Replies:** 0\
**Last updated:** [April 14, 2026, 7:48pm UTC](https://discourse.paraview.org/t/what-s-new-in-vtk-9-6-free-release-webinar/17524 "2026-04-14T19:48:02Z")

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Are you a VTK user, or are you looking for open source software for manipulating and displaying scientific data? Next week, on Wednesday, April 22nd, Kitware is hosting a free webinar, “What’s New in VTK 9.6.0”. The webi…

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## [Add an option to “Toggle between dark mode and light mode”](https://discourse.paraview.org/t/add-an-option-to-toggle-between-dark-mode-and-light-mode/17509)

<div class="topic-metadata">

**Author:** [@diogo](https://discourse.paraview.org/u/diogo)\
**Replies:** 0\
**Last updated:** [April 3, 2026, 1:46pm UTC](https://discourse.paraview.org/t/add-an-option-to-toggle-between-dark-mode-and-light-mode/17509 "2026-04-03T13:46:20Z")

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Please add an option to “Toggle between dark mode and light mode”. References: 6.1: how to get rid of the dark theme? - ParaView Support - ParaView Switch off dark mode in 6.0? - ParaView Support - ParaView

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## [Slicing a dataset produces a surface mesh with different topology](https://discourse.paraview.org/t/slicing-a-dataset-produces-a-surface-mesh-with-different-topology/17307)

<div class="topic-metadata">

**Author:** [@simonw](https://discourse.paraview.org/u/simonw)\
**Replies:** 0\
**Last updated:** [November 14, 2025, 3:47pm UTC](https://discourse.paraview.org/t/slicing-a-dataset-produces-a-surface-mesh-with-different-topology/17307 "2025-11-14T15:47:27Z")

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Hello, I have a question about how ParaView handles slicing of 3D datasets and whether it is possible to preserve the original surface mesh topology. I have 1. a 2D surface mesh saved as a .vtu file This file contains…

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## [Having the same view in different states (with different centers)](https://discourse.paraview.org/t/having-the-same-view-in-different-states-with-different-centers/17710)

<div class="topic-metadata">

**Author:** [@Joao\_Pedro\_Perdigao](https://discourse.paraview.org/u/Joao_Pedro_Perdigao)\
**Replies:** 6\
**Last updated:** [September 2, 2026, 8:00am UTC](https://discourse.paraview.org/t/having-the-same-view-in-different-states-with-different-centers/17710 "2026-09-02T08:00:52Z")

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Hello, I’m comparing different wind tunnel data for two aircraft models and I would like to have the same views in all the tests, to better compare the results. The issue is that, since this was done experimentally (an…

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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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## [why cleantogrid filter so slow?](https://discourse.paraview.org/t/why-cleantogrid-filter-so-slow/17370)

<div class="topic-metadata">

**Author:** [@garcfd](https://discourse.paraview.org/u/garcfd)\
**Replies:** 0\
**Last updated:** [December 13, 2025, 1:27pm UTC](https://discourse.paraview.org/t/why-cleantogrid-filter-so-slow/17370 "2025-12-13T13:27:50Z")

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I have an octree mesh flow solution which comes from my solver ufocfd (octree) I decided to use use “clean to grid” because it seems the only way to get gradients of density. I noticed that the cleantogrid filter is ve…

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## [Extract interpolated data in a programable filter](https://discourse.paraview.org/t/extract-interpolated-data-in-a-programable-filter/17384)

<div class="topic-metadata">

**Author:** [@Captain\_Convergence](https://discourse.paraview.org/u/Captain_Convergence)\
**Replies:** 0\
**Last updated:** [December 18, 2025, 6:18pm UTC](https://discourse.paraview.org/t/extract-interpolated-data-in-a-programable-filter/17384 "2025-12-18T18:18:07Z")

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Dear support, I am wondering if it is possible to define a line AB given both points and then interpolating the dataset solution on its points to later access them and perform different operations. I know how to do thi…

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## [Mismatch of points/tuples between vtkmCleanGrid and its VTK-numpy-wrapper](https://discourse.paraview.org/t/mismatch-of-points-tuples-between-vtkmcleangrid-and-its-vtk-numpy-wrapper/17698)

<div class="topic-metadata">

**Author:** [@Bodacious](https://discourse.paraview.org/u/Bodacious)\
**Replies:** 8\
**Last updated:** [August 27, 2026, 6:21pm UTC](https://discourse.paraview.org/t/mismatch-of-points-tuples-between-vtkmcleangrid-and-its-vtk-numpy-wrapper/17698 "2026-08-27T18:21:49Z")

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Hello, I have a vtkUnstructuredGrid dataset that I filter with a vtkmCleanGrid VTK object in a programmable filter, whose objective is to perform the divergence operator on the VTK-numpy wrapped output of the vtkmCleanGr…

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## [Get multi block dataset structure in python](https://discourse.paraview.org/t/get-multi-block-dataset-structure-in-python/17628)

<div class="topic-metadata">

**Author:** [@Captain\_Convergence](https://discourse.paraview.org/u/Captain_Convergence)\
**Replies:** 0\
**Last updated:** [June 19, 2026, 12:58pm UTC](https://discourse.paraview.org/t/get-multi-block-dataset-structure-in-python/17628 "2026-06-19T12:58:14Z")

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Dear support, I would like to know if there is an method to parse or get the hierarchical structure of a multi block data set in python in a dictionary, XML or similar way which is quite useful for looping over the bloc…

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## [What’s New in In Situ Analysis and Visualization? - Free Webinar](https://discourse.paraview.org/t/what-s-new-in-in-situ-analysis-and-visualization-free-webinar/17554)

<div class="topic-metadata">

**Author:** [@NickBearup](https://discourse.paraview.org/u/NickBearup)\
**Replies:** 0\
**Last updated:** [May 7, 2026, 5:15pm UTC](https://discourse.paraview.org/t/what-s-new-in-in-situ-analysis-and-visualization-free-webinar/17554 "2026-05-07T17:15:16Z")

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Are you a developer working with large-scale simulations, looking into in situ approaches to reduce I/O bottlenecks and accelerate time to insight? Kitware is excited to be hosting a free webinar, “What’s New in In Situ…

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## [Calculating flow rate form surface generated from clip filter](https://discourse.paraview.org/t/calculating-flow-rate-form-surface-generated-from-clip-filter/17483)

<div class="topic-metadata">

**Author:** [@Aimannor](https://discourse.paraview.org/u/Aimannor)\
**Replies:** 0\
**Last updated:** [March 19, 2026, 7:30am UTC](https://discourse.paraview.org/t/calculating-flow-rate-form-surface-generated-from-clip-filter/17483 "2026-03-19T07:30:55Z")

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I created a new annular cylinder region using a series of clip filters to extract data in the flow field. The main goal is to separate the annular cylinder into smaller elements and then evaluate the flow rate going thro…

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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")

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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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## [Running a python script as headless without pvpython/pvbatch](https://discourse.paraview.org/t/running-a-python-script-as-headless-without-pvpython-pvbatch/17665)

<div class="topic-metadata">

**Author:** [@Rowan\_Wiles](https://discourse.paraview.org/u/Rowan_Wiles)\
**Replies:** 3\
**Last updated:** [July 23, 2026, 8:40pm UTC](https://discourse.paraview.org/t/running-a-python-script-as-headless-without-pvpython-pvbatch/17665 "2026-07-23T20:40:18Z")

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I’m working on a Paraview project that runs as a Python script. It’s crashing when I try using it in a CAVE and I believe it’s because of the VTK Render window it’s opening whenever it runs. I want to stop this window fr…

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## [Issues with QuerySelect between 6.0.1 and 6.1.0](https://discourse.paraview.org/t/issues-with-queryselect-between-6-0-1-and-6-1-0/17566)

<div class="topic-metadata">

**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 0\
**Last updated:** [May 13, 2026, 2:57pm UTC](https://discourse.paraview.org/t/issues-with-queryselect-between-6-0-1-and-6-1-0/17566 "2026-05-13T14:57:46Z")

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Hello, not sure if this is a bug issue, a syntax that changed or something else. I have this function to extract specific values from a filter, basically i use the querySelect to select the cells or points with specifi…

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## [Compute the cell-wall distance in a CFD mesh](https://discourse.paraview.org/t/compute-the-cell-wall-distance-in-a-cfd-mesh/17439)

<div class="topic-metadata">

**Author:** [@Captain\_Convergence](https://discourse.paraview.org/u/Captain_Convergence)\
**Replies:** 0\
**Last updated:** [February 11, 2026, 6:25pm UTC](https://discourse.paraview.org/t/compute-the-cell-wall-distance-in-a-cfd-mesh/17439 "2026-02-11T18:25:13Z")

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Dear support, I am exploring the possibility of creating iso-wall-distance surfaces for postprocessing. Unfortunately the cell-wall distance isn’t available in my dataset and I was wondering if it could be computed in p…

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## [Create slice from irregular line](https://discourse.paraview.org/t/create-slice-from-irregular-line/17685)

<div class="topic-metadata">

**Author:** [@Vinicius](https://discourse.paraview.org/u/Vinicius)\
**Replies:** 2\
**Last updated:** [August 17, 2026, 2:12pm UTC](https://discourse.paraview.org/t/create-slice-from-irregular-line/17685 "2026-08-17T14:12:13Z")

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Hi all, I am using ParaView version 5.12.0 for Windows. I would like to know if there is a way to create a slice along an irregular line within a structured grid and display it in an unwrapped format. I have a structur…

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## [Dynamic GUI Generation for Python Plugins](https://discourse.paraview.org/t/dynamic-gui-generation-for-python-plugins/17723)

<div class="topic-metadata">

**Author:** [@Felipe\_Bordeu](https://discourse.paraview.org/u/Felipe_Bordeu)\
**Replies:** 1\
**Last updated:** [September 14, 2026, 9:31am UTC](https://discourse.paraview.org/t/dynamic-gui-generation-for-python-plugins/17723 "2026-09-14T09:31:23Z")

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Hi ParaView Community, I do a lot of prototyping, and one feature I use heavily is Python plugins in ParaView. They make it possible to turn a prototype into something that instantly looks and feels professional, thank…

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## [Bad performance of Paraview while rendering .MED files](https://discourse.paraview.org/t/bad-performance-of-paraview-while-rendering-med-files/17720)

<div class="topic-metadata">

**Author:** [@anirudhnehra](https://discourse.paraview.org/u/anirudhnehra)\
**Replies:** 5\
**Last updated:** [September 18, 2026, 2:42pm UTC](https://discourse.paraview.org/t/bad-performance-of-paraview-while-rendering-med-files/17720 "2026-09-18T14:42:45Z")

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Hello, Greetings. I have been trying to use paraview to visualize Code\_Aster result files (in .med or .rmed format) but the performance is not too good. The rotations and manipulation of mesh is slow. The performance is…

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## [Delete downstream pipeline... but in python?](https://discourse.paraview.org/t/delete-downstream-pipeline-but-in-python/17708)

<div class="topic-metadata">

**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 2\
**Last updated:** [September 1, 2026, 7:35am UTC](https://discourse.paraview.org/t/delete-downstream-pipeline-but-in-python/17708 "2026-09-01T07:35:21Z")

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Hello, is there any way to cleanly do the same action as ‘delete downstream pipeline’ but from python itself? what i came up from some sketchy coding, is a function like this, but would like any inputs (to improve it) …

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## [Is it possible to show on the legend the true minimum and maximum?](https://discourse.paraview.org/t/is-it-possible-to-show-on-the-legend-the-true-minimum-and-maximum/17659)

<div class="topic-metadata">

**Author:** [@PetrKryslUCSD](https://discourse.paraview.org/u/PetrKryslUCSD)\
**Replies:** 1\
**Last updated:** [July 14, 2026, 4:03pm UTC](https://discourse.paraview.org/t/is-it-possible-to-show-on-the-legend-the-true-minimum-and-maximum/17659 "2026-07-14T16:03:50Z")

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I’d like to set the minimum and maximum, in which case the legend currently shows the chosen minimum and maximum, not the true minimum and maximum of the scalar field. Edit: I happened to find “Draw data range labels”. …

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## [VTKHDF usage](https://discourse.paraview.org/t/vtkhdf-usage/17697)

<div class="topic-metadata">

**Author:** [@jfavre](https://discourse.paraview.org/u/jfavre)\
**Replies:** 3\
**Last updated:** [August 26, 2026, 8:51am UTC](https://discourse.paraview.org/t/vtkhdf-usage/17697 "2026-08-26T08:51:05Z")

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I am evaluating the possibility of converting my data I/O to using the VTKHDF format. I am using ParaView v6.2.0-RC1. My datasets are made of single-block unstructured grids (either hexs, or quads) I can use the follow…

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## [Not able to visualize orientation with Quaternions in vtu files](https://discourse.paraview.org/t/not-able-to-visualize-orientation-with-quaternions-in-vtu-files/17742)

<div class="topic-metadata">

**Author:** [@pfahd](https://discourse.paraview.org/u/pfahd)\
**Replies:** 8\
**Last updated:** [September 30, 2026, 8:44am UTC](https://discourse.paraview.org/t/not-able-to-visualize-orientation-with-quaternions-in-vtu-files/17742 "2026-09-30T08:44:49Z")

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I am trying to visualize orientation of spherical particles. I have vtu files which has 4-component Quaternions in it, as can be seen in the screenshot. (or see the file: config\_t90.vtu (1.3 KB) ) However, I am not a…

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## [CFP for ISAV: In Situ AI, Analysis and Visualization at #SC26](https://discourse.paraview.org/t/cfp-for-isav-in-situ-ai-analysis-and-visualization-at-sc26/17542)

<div class="topic-metadata">

**Author:** [@mclarsen](https://discourse.paraview.org/u/mclarsen)\
**Replies:** 0\
**Last updated:** [April 30, 2026, 6:45pm UTC](https://discourse.paraview.org/t/cfp-for-isav-in-situ-ai-analysis-and-visualization-at-sc26/17542 "2026-04-30T18:45:27Z")

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Workshop Theme HPC platforms and applications have reached such large scale, complexity, and heterogeneity, that a major challenge has become the wide gap between our ability to compute extreme-scale data and our abil…

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## [LSDynaReader error: "Database has bad state size (0)" with SPH Double Precision files](https://discourse.paraview.org/t/lsdynareader-error-database-has-bad-state-size-0-with-sph-double-precision-files/17466)

<div class="topic-metadata">

**Author:** [@Salvatore\_Russo](https://discourse.paraview.org/u/Salvatore_Russo)\
**Replies:** 0\
**Last updated:** [March 8, 2026, 12:55pm UTC](https://discourse.paraview.org/t/lsdynareader-error-database-has-bad-state-size-0-with-sph-double-precision-files/17466 "2026-03-08T12:55:28Z")

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​Hi everyone, ​I am experiencing a persistent issue when trying to load LS-DYNA results in ParaView. Every time I select the base d3plot file and use the LSDynaReader, the following errors appear in the Output Messages: …

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## [Cannot reset "Open Data With" default reader for .vtu files on Kubuntu](https://discourse.paraview.org/t/cannot-reset-open-data-with-default-reader-for-vtu-files-on-kubuntu/17496)

<div class="topic-metadata">

**Author:** [@Daniel\_Marco](https://discourse.paraview.org/u/Daniel_Marco)\
**Replies:** 1\
**Last updated:** [March 30, 2026, 11:33am UTC](https://discourse.paraview.org/t/cannot-reset-open-data-with-default-reader-for-vtu-files-on-kubuntu/17496 "2026-03-30T11:33:24Z")

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I am an aerospace student using SU2 for wing simulations. I accidentally checked the “Set reader as default” box for .vtu files, selecting the OpenFOAM reader. Now, ParaView skips the “Open Data With” selection dialog an…

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## [ParaView error when reading OpenSees VTU files with ASDAbsorbingBoundary](https://discourse.paraview.org/t/paraview-error-when-reading-opensees-vtu-files-with-asdabsorbingboundary/17683)

<div class="topic-metadata">

**Author:** [@Aliy1766](https://discourse.paraview.org/u/Aliy1766)\
**Replies:** 7\
**Last updated:** [August 25, 2026, 8:29am UTC](https://discourse.paraview.org/t/paraview-error-when-reading-opensees-vtu-files-with-asdabsorbingboundary/17683 "2026-08-25T08:29:54Z")

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Hello, I am using OpenSees for dynamic soil–structure interaction analysis and ParaView for post-processing the results. My model contains quad soil elements and structural elements. The VTK output works correctly in P…

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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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## [ParaView Office Hours (December 10, 2025)](https://discourse.paraview.org/t/paraview-office-hours-december-10-2025/17361)

<div class="topic-metadata">

**Author:** [@dcthomp](https://discourse.paraview.org/u/dcthomp)\
**Replies:** 0\
**Last updated:** [December 10, 2025, 5:20pm UTC](https://discourse.paraview.org/t/paraview-office-hours-december-10-2025/17361 "2025-12-10T17:20:22Z")

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Please join @Sankhesh\_Jhaveri and me for ParaView Office Hours tomorrow (Thursday, December 11th, 2025), from 3:30 - 5:00 pm Eastern time. This is an opportunity to get your questions about using ParaView answered by Par…

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## [Catalyst connection freezes in Jupyter](https://discourse.paraview.org/t/catalyst-connection-freezes-in-jupyter/17342)

<div class="topic-metadata">

**Author:** [@greg](https://discourse.paraview.org/u/greg)\
**Replies:** 0\
**Last updated:** [December 2, 2025, 8:36pm UTC](https://discourse.paraview.org/t/catalyst-connection-freezes-in-jupyter/17342 "2025-12-02T20:36:41Z")

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I am trying to connect from Jupyter to a catalyst in situ simulation, but Jupyter freezes in the moment, when the in situ side connects. ( The aim of this experiment is to show some statistics, no graphics, in Jupyter fr…

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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")

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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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## [Paraview 6.0.1 crashes when open HDF5+XDMF](https://discourse.paraview.org/t/paraview-6-0-1-crashes-when-open-hdf5-xdmf/17522)

<div class="topic-metadata">

**Author:** [@Alexander\_Lewis](https://discourse.paraview.org/u/Alexander_Lewis)\
**Replies:** 0\
**Last updated:** [April 14, 2026, 9:06am UTC](https://discourse.paraview.org/t/paraview-6-0-1-crashes-when-open-hdf5-xdmf/17522 "2026-04-14T09:06:11Z")

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I generated a AMR which stored in HDF5+XDMF. However when I try to open it with paraview 6.0.1 XDMF Reader, paraview crashed. Is it an issue with XDMF or with ParaView？ The AMR has N blocks, they have different size. A…

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## [ParaView Office Hours February 5, 2026](https://discourse.paraview.org/t/paraview-office-hours-february-5-2026/17427)

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**Author:** [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)\
**Replies:** 0\
**Last updated:** [February 3, 2026, 11:39am UTC](https://discourse.paraview.org/t/paraview-office-hours-february-5-2026/17427 "2026-02-03T11:39:21Z")

</div>

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

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## [Upstreaming a reader for zCFD mesh files](https://discourse.paraview.org/t/upstreaming-a-reader-for-zcfd-mesh-files/17760)

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**Author:** [@T-Wainwright](https://discourse.paraview.org/u/T-Wainwright)\
**Replies:** 2\
**Last updated:** [October 8, 2026, 7:45am UTC](https://discourse.paraview.org/t/upstreaming-a-reader-for-zcfd-mesh-files/17760 "2026-10-08T07:45:53Z")

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Hi all, we’d like to get a reader for zCFD native mesh files into VTK/ParaView, to replace the plugin we ship today. Our results are already VTKHDF, so it’s only the mesh format that needs one. Before we start, we’d like…

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## [Refreshing Properties Panel without applying pipeline object](https://discourse.paraview.org/t/refreshing-properties-panel-without-applying-pipeline-object/17731)

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**Author:** [@Kenneth\_Moreland](https://discourse.paraview.org/u/Kenneth_Moreland)\
**Replies:** 2\
**Last updated:** [September 16, 2026, 12:23pm UTC](https://discourse.paraview.org/t/refreshing-properties-panel-without-applying-pipeline-object/17731 "2026-09-16T12:23:43Z")

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I have a reader that reads data from two files: one holding a grid and one holding fields. The sequence for loading this data is to open the file with the grid and then select the file holding the fields using a selector…

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## [updatePipeline of programmable filter overwriting the max function](https://discourse.paraview.org/t/updatepipeline-of-programmable-filter-overwriting-the-max-function/17711)

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**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 4\
**Last updated:** [September 3, 2026, 1:19pm UTC](https://discourse.paraview.org/t/updatepipeline-of-programmable-filter-overwriting-the-max-function/17711 "2026-09-03T13:19:42Z")

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first of all i must say that i was able to pinpoint this issue thanks to LLM. my code was working correctly when using paraview/python shell and running my code but when i was running it with pvbatch i was getting an er…

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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)

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

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

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

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

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**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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## [ParaView Office Hours May 28, 2026](https://discourse.paraview.org/t/paraview-office-hours-may-28-2026/17584)

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**Author:** [@Bob\_Obara](https://discourse.paraview.org/u/Bob_Obara)\
**Replies:** 0\
**Last updated:** [May 27, 2026, 1:33pm UTC](https://discourse.paraview.org/t/paraview-office-hours-may-28-2026/17584 "2026-05-27T13:33:58Z")

</div>

Have a question about how to use ParaView? Ask ParaView experts at this week’s office hours! Time: Thursday, May 28 · 3:30 – 5:00pm Time zone: America/New\_York Google Meet joining info Video call link: https://meet.go…

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## [Request for Review: CPEX-0050 - Solution Field Continuity Metadata in CGNS](https://discourse.paraview.org/t/request-for-review-cpex-0050-solution-field-continuity-metadata-in-cgns/17532)

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**Author:** [@brtnfld](https://discourse.paraview.org/u/brtnfld)\
**Replies:** 0\
**Last updated:** [April 23, 2026, 2:10pm UTC](https://discourse.paraview.org/t/request-for-review-cpex-0050-solution-field-continuity-metadata-in-cgns/17532 "2026-04-23T14:10:30Z")

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Hello, This concerns the recently proposed CGNS CPEX 50, which introduces solution-field continuity metadata into the CGNS standard. This extension allows CGNS to indicate whether a solution field is continuous or disco…

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## [Connect to pvserver with pycharm](https://discourse.paraview.org/t/connect-to-pvserver-with-pycharm/17482)

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**Author:** [@Captain\_Convergence](https://discourse.paraview.org/u/Captain_Convergence)\
**Replies:** 0\
**Last updated:** [March 18, 2026, 7:17pm UTC](https://discourse.paraview.org/t/connect-to-pvserver-with-pycharm/17482 "2026-03-18T19:17:05Z")

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Dear support, I am trying to connect to a pvserver and I can do it with the GUI. However I need to use an IDE to debug better my scripts and I am struggling with it. I have the same python version as the paraview instal…

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## [How to free up the storage shown in the bottom right corner?](https://discourse.paraview.org/t/how-to-free-up-the-storage-shown-in-the-bottom-right-corner/17756)

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**Author:** [@marissa.walser](https://discourse.paraview.org/u/marissa.walser)\
**Replies:** 1\
**Last updated:** [October 5, 2026, 10:50am UTC](https://discourse.paraview.org/t/how-to-free-up-the-storage-shown-in-the-bottom-right-corner/17756 "2026-10-05T10:50:14Z")

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(This might be a stupid question, but unfortunately I do not know the proper name of the thing I’m worried about, so I can’t easily look it up) I have been using Paraview 6.1.0 on Windows 10 and with everything I do the…

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## [passArray making things.... slower?](https://discourse.paraview.org/t/passarray-making-things-slower/17699)

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**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 1\
**Last updated:** [August 26, 2026, 8:05am UTC](https://discourse.paraview.org/t/passarray-making-things-slower/17699 "2026-08-26T08:05:23Z")

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Hello, I am trying to optimize my code(python script) to speed up, my data is unstructured data with: # of cells 604 829 # of points 725 864 (float) memory 67,4922 MB fields points: PointIDs fields cell: CellIDs Flag …

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## [any way to reconstruct images from paraview itself?](https://discourse.paraview.org/t/any-way-to-reconstruct-images-from-paraview-itself/17733)

<div class="topic-metadata">

**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 2\
**Last updated:** [September 23, 2026, 7:08pm UTC](https://discourse.paraview.org/t/any-way-to-reconstruct-images-from-paraview-itself/17733 "2026-09-23T19:08:52Z")

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Hello, i have a bunch of ‘slices’ at different heights of a tomography scan, generally I get a “3D tiff” which when open it is a “Image (Uniform Rectilinear Grid)” with elements in each direction with a tiff value at ea…

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