# Top

**URL:** https://discourse.paraview.org/top.md?page=135&period=all

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**Page:** 136

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## [How to pass the output of a Reader to an algorithm or filter](https://discourse.paraview.org/t/how-to-pass-the-output-of-a-reader-to-an-algorithm-or-filter/7252)

<div class="topic-metadata">

**Author:** [@bbellster](https://discourse.paraview.org/u/bbellster)\
**Replies:** 2\
**Last updated:** [May 20, 2021, 4:14am UTC](https://discourse.paraview.org/t/how-to-pass-the-output-of-a-reader-to-an-algorithm-or-filter/7252 "2021-05-20T04:14:29Z")

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I’m trying to use vtk functionality not available in paraview. So I’m trying to do everything I need to in a script and its a fairly long script so I don’t prefer the programmable script method. My question is, how do I…

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## [How to show cells that had a certain value at any given timestep?](https://discourse.paraview.org/t/how-to-show-cells-that-had-a-certain-value-at-any-given-timestep/6424)

<div class="topic-metadata">

**Author:** [@Terry](https://discourse.paraview.org/u/Terry)\
**Replies:** 2\
**Last updated:** [February 9, 2021, 9:04am UTC](https://discourse.paraview.org/t/how-to-show-cells-that-had-a-certain-value-at-any-given-timestep/6424 "2021-02-09T09:04:14Z")

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Hi, I do CFD with phase changes and I need to see what had been melted. The general goal is an comparison with micrographs from experiments. A heat source melts my material (a value changes from 0 to 1) and the material…

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## [Is it possible to upgrade paraview version for paraview-web](https://discourse.paraview.org/t/is-it-possible-to-upgrade-paraview-version-for-paraview-web/13556)

<div class="topic-metadata">

**Author:** [@Kim\_Namhyun](https://discourse.paraview.org/u/Kim_Namhyun)\
**Replies:** 1\
**Last updated:** [December 29, 2023, 12:01am UTC](https://discourse.paraview.org/t/is-it-possible-to-upgrade-paraview-version-for-paraview-web/13556 "2023-12-29T00:01:15Z")

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I am SW developer and we are testing paraview-web for our project. We are developing small program based on paraview-web which was introduced with paraview 5.7 We already developed serveral functions on top of pvpytho…

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## [New GUI to automate loading of multiple data sets that correspond to the same study](https://discourse.paraview.org/t/new-gui-to-automate-loading-of-multiple-data-sets-that-correspond-to-the-same-study/7169)

<div class="topic-metadata">

**Author:** [@migrod](https://discourse.paraview.org/u/migrod)\
**Replies:** 1\
**Last updated:** [May 7, 2021, 9:44am UTC](https://discourse.paraview.org/t/new-gui-to-automate-loading-of-multiple-data-sets-that-correspond-to-the-same-study/7169 "2021-05-07T09:44:39Z")

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I am dealing with a large amount of data which involves multiple data sets for any given case study. Each case has different slices, and each slice has different fields. So the data tree, so to speak, looks something lik…

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## [calling paraview as I do for pvpython](https://discourse.paraview.org/t/calling-paraview-as-i-do-for-pvpython/5570)

<div class="topic-metadata">

**Author:** [@Francesc\_Costa](https://discourse.paraview.org/u/Francesc_Costa)\
**Replies:** 1\
**Last updated:** [October 15, 2020, 7:23pm UTC](https://discourse.paraview.org/t/calling-paraview-as-i-do-for-pvpython/5570 "2020-10-15T19:23:41Z")

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Hello, I have successfully set-up paraview-lite in a ubuntu machine. I start the server with: pvpython ./server/pvw-lite.py --data ~/3d\_samples --port 8082 how can I do the same without using the python wrapper? how …

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## [Display of symbols at Gauss points levels](https://discourse.paraview.org/t/display-of-symbols-at-gauss-points-levels/3008)

<div class="topic-metadata">

**Author:** [@Richard](https://discourse.paraview.org/u/Richard)\
**Replies:** 1\
**Last updated:** [November 20, 2019, 8:13am UTC](https://discourse.paraview.org/t/display-of-symbols-at-gauss-points-levels/3008 "2019-11-20T08:13:27Z")

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I was wondering how to possibly get symbols display (stress or strain directions or symbol display based on a stress status (like square if ip\_Status=1, circle if ip\_Status=2, circle if ip\_Status=3) at Gauss points! I…

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## [How to plot only some selected meshes?](https://discourse.paraview.org/t/how-to-plot-only-some-selected-meshes/6754)

<div class="topic-metadata">

**Author:** [@maryha](https://discourse.paraview.org/u/maryha)\
**Replies:** 0\
**Last updated:** [March 21, 2021, 2:38pm UTC](https://discourse.paraview.org/t/how-to-plot-only-some-selected-meshes/6754 "2021-03-21T14:38:43Z")

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Hello everyone, I have used the Finite Element Method to solve my 2D elasticity model using Fenics, and exported my data using “.pvd” files. Now, I want to show the deformed shape of meshes over my domain using Paraview…

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## [How to use 'smooth' filter for a Structured (Curvilinear) Grid data](https://discourse.paraview.org/t/how-to-use-smooth-filter-for-a-structured-curvilinear-grid-data/6052)

<div class="topic-metadata">

**Author:** [@rupak](https://discourse.paraview.org/u/rupak)\
**Replies:** 0\
**Last updated:** [December 14, 2020, 8:04am UTC](https://discourse.paraview.org/t/how-to-use-smooth-filter-for-a-structured-curvilinear-grid-data/6052 "2020-12-14T08:04:30Z")

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I have a Structured (Curvilinear) Grid data (32 X 64 X 20) in the form of a helix. I need to smooth it. Is there any existing filter or any tool to do this?

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## [Some wrong with qt5 and paraview I have when I use paraview](https://discourse.paraview.org/t/some-wrong-with-qt5-and-paraview-i-have-when-i-use-paraview/15103)

<div class="topic-metadata">

**Author:** [@Celiniapockey](https://discourse.paraview.org/u/Celiniapockey)\
**Replies:** 5\
**Last updated:** [July 25, 2024, 1:54am UTC](https://discourse.paraview.org/t/some-wrong-with-qt5-and-paraview-i-have-when-i-use-paraview/15103 "2024-07-25T01:54:10Z")

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Hi everyone, the words on my shell is: QFactoryLoader::QFactoryLoader() checking directory path "/home/yukino/software/paraview/bin/platforms" ... Cannot load library /home/yukino/software/geant4/Qt5/5.14.2/gcc\_64/plugi…

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## [I need help with creating 3D from multiple 2D profiles of electrical resistivity data](https://discourse.paraview.org/t/i-need-help-with-creating-3d-from-multiple-2d-profiles-of-electrical-resistivity-data/14387)

<div class="topic-metadata">

**Author:** [@Adetokunbo\_Peter](https://discourse.paraview.org/u/Adetokunbo_Peter)\
**Replies:** 3\
**Last updated:** [May 11, 2024, 12:37pm UTC](https://discourse.paraview.org/t/i-need-help-with-creating-3d-from-multiple-2d-profiles-of-electrical-resistivity-data/14387 "2024-05-11T12:37:17Z")

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I need help creating 3D image like the one below out of 2D images. My data is a CSV file. The data structure consists of 4 columns - longitude latitude depth resistivity\_change. I can share a small part of my data is you…

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## [Slice/clip with surface not working](https://discourse.paraview.org/t/slice-clip-with-surface-not-working/16004)

<div class="topic-metadata">

**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 4\
**Last updated:** [August 5, 2025, 1:30pm UTC](https://discourse.paraview.org/t/slice-clip-with-surface-not-working/16004 "2025-08-05T13:30:52Z")

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Hello, I would like to do this with a surface created from the filter connectivity (use the freesurface to cut my volume) extract interface between water and air - #3 by Kenneth\_Moreland Is this possible? the type of t…

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## [ParaView System Architecture Wiki](https://discourse.paraview.org/t/paraview-system-architecture-wiki/13161)

<div class="topic-metadata">

**Author:** [@hasraz](https://discourse.paraview.org/u/hasraz)\
**Replies:** 4\
**Last updated:** [November 2, 2023, 1:24pm UTC](https://discourse.paraview.org/t/paraview-system-architecture-wiki/13161 "2023-11-02T13:24:56Z")

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Hello, I’m looking for recommendations for documents that can give a high-level overview of different components of the ParaView project. I found User guide and Developer guide (generated document for Python and C++ API)…

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## [How is filter hierarchy handled in custom filter?](https://discourse.paraview.org/t/how-is-filter-hierarchy-handled-in-custom-filter/8480)

<div class="topic-metadata">

**Author:** [@pindakaas](https://discourse.paraview.org/u/pindakaas)\
**Replies:** 1\
**Last updated:** [December 30, 2021, 6:49am UTC](https://discourse.paraview.org/t/how-is-filter-hierarchy-handled-in-custom-filter/8480 "2021-12-30T06:49:38Z")

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Hello, I am trying to create a custom filter which consists of first extracting data from several locations and then combining these extracted locations in a group. Here’s a sort of scheme of what I expect to happen: I…

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## [Maximum Font Size](https://discourse.paraview.org/t/maximum-font-size/8396)

<div class="topic-metadata">

**Author:** [@woodscn](https://discourse.paraview.org/u/woodscn)\
**Replies:** 1\
**Last updated:** [November 15, 2021, 8:40am UTC](https://discourse.paraview.org/t/maximum-font-size/8396 "2021-11-15T08:40:46Z")

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It appears that the font size in Paraview is capped at 99. This is on the small end for title text with a 4K image. Is it very difficult to allow it to scale further? Is there a better way to handle this use case?

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## [Extending animation end time, but keeping old keyframe times](https://discourse.paraview.org/t/extending-animation-end-time-but-keeping-old-keyframe-times/11738)

<div class="topic-metadata">

**Author:** [@wtfermi](https://discourse.paraview.org/u/wtfermi)\
**Replies:** 2\
**Last updated:** [March 29, 2023, 7:58am UTC](https://discourse.paraview.org/t/extending-animation-end-time-but-keeping-old-keyframe-times/11738 "2023-03-29T07:58:52Z")

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Hi, I often find myself in a situation, where I have a “complete” animation set up, but then want to add some additional stuff at the end (an additional camera position, plotting something). However, once the animation …

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## [How to clip Volume and keep rgba 4 scalar components](https://discourse.paraview.org/t/how-to-clip-volume-and-keep-rgba-4-scalar-components/9167)

<div class="topic-metadata">

**Author:** [@sharon](https://discourse.paraview.org/u/sharon)\
**Replies:** 0\
**Last updated:** [March 12, 2022, 9:56am UTC](https://discourse.paraview.org/t/how-to-clip-volume-and-keep-rgba-4-scalar-components/9167 "2022-03-12T09:56:59Z")

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Dear Experts, I want to clip my volume data which has 4 scalar components: rgba, my expected result is a portion of origin: the same color and opacity, but the real result is a solid entity which lost origin rgba infor…

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## [flow rate specific area](https://discourse.paraview.org/t/flow-rate-specific-area/6846)

<div class="topic-metadata">

**Author:** [@mylee](https://discourse.paraview.org/u/mylee)\
**Replies:** 0\
**Last updated:** [April 2, 2021, 1:15am UTC](https://discourse.paraview.org/t/flow-rate-specific-area/6846 "2021-04-02T01:15:03Z")

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Hello i need to calculate mass flow rate of three outlet in one flow domain. i have no something to represent three outlet surface. so i cannot activate or choose the outlet surfaces alone. so my idea was extract out…

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## [CTH Filter Bug in 5.6 (worked in 5.5)](https://discourse.paraview.org/t/cth-filter-bug-in-5-6-worked-in-5-5/1483)

<div class="topic-metadata">

**Author:** [@Dave](https://discourse.paraview.org/u/Dave)\
**Replies:** 1\
**Last updated:** [March 18, 2019, 3:23pm UTC](https://discourse.paraview.org/t/cth-filter-bug-in-5-6-worked-in-5-5/1483 "2019-03-18T15:23:41Z")

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We have updated Paraview to 5.6 and when I try the ‘Extract CTH Parts filter’, it completes the operation without any errors, but no materials appear on the screen. The mesh array is still displayed, however. If I then…

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## [open pqColorOpacityEditorWidget in c++ custom application](https://discourse.paraview.org/t/open-pqcoloropacityeditorwidget-in-c-custom-application/12575)

<div class="topic-metadata">

**Author:** [@fvitello](https://discourse.paraview.org/u/fvitello)\
**Replies:** 5\
**Last updated:** [July 25, 2023, 6:58am UTC](https://discourse.paraview.org/t/open-pqcoloropacityeditorwidget-in-c-custom-application/12575 "2023-07-25T06:58:27Z")

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hi all, how can I use existing paraview widget in my custom application? E.g. is is possibile to open and use the pqColorOpacityEditorWidget ?

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## [Extract subset that is not a box from structured data](https://discourse.paraview.org/t/extract-subset-that-is-not-a-box-from-structured-data/14497)

<div class="topic-metadata">

**Author:** [@Sandra](https://discourse.paraview.org/u/Sandra)\
**Replies:** 2\
**Last updated:** [April 29, 2024, 1:41pm UTC](https://discourse.paraview.org/t/extract-subset-that-is-not-a-box-from-structured-data/14497 "2024-04-29T13:41:34Z")

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I know I can use the Extract Subset-filter to extract a box from a Structured Grid and the output will also be a Structured Grid. What do I do if I want to extract a more complex subset and still have the output be a Str…

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## [Maximum file size to upload to this discourse](https://discourse.paraview.org/t/maximum-file-size-to-upload-to-this-discourse/11327)

<div class="topic-metadata">

**Author:** [@30Kaz](https://discourse.paraview.org/u/30Kaz)\
**Replies:** 2\
**Last updated:** [February 3, 2023, 4:58pm UTC](https://discourse.paraview.org/t/maximum-file-size-to-upload-to-this-discourse/11327 "2023-02-03T16:58:05Z")

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What is the maximum file size to upload to this discourse? Since I wanted to provide the files relevant to my question, I tried to upload a zip file of 3.2GB, but failed (twice) towards the end of the uploading process. …

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## [Error: Extract Selection Filter](https://discourse.paraview.org/t/error-extract-selection-filter/10629)

<div class="topic-metadata">

**Author:** [@FelixB](https://discourse.paraview.org/u/FelixB)\
**Replies:** 2\
**Last updated:** [October 31, 2022, 3:57am UTC](https://discourse.paraview.org/t/error-extract-selection-filter/10629 "2022-10-31T03:57:51Z")

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When I try to apply the extract selection filter I get the following error: Warning: In vtkExtractRectilinearGrid.cxx, line 129 vtkPExtractRectilinearGrid (0x205bf500): Error while initializing filter. this error also…

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## [orient custom glyph](https://discourse.paraview.org/t/orient-custom-glyph/8492)

<div class="topic-metadata">

**Author:** [@mbanaei](https://discourse.paraview.org/u/mbanaei)\
**Replies:** 2\
**Last updated:** [November 26, 2021, 11:09am UTC](https://discourse.paraview.org/t/orient-custom-glyph/8492 "2021-11-26T11:09:33Z")

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Hi everyone, when I am using the custom glyph orient option, the objects are not only rotating but are also moving. I am guessing that they are oriented along a certain axis and that is why they are moving. However, I w…

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## [Data array multi-component labelling in VTKHDF for Paraview](https://discourse.paraview.org/t/data-array-multi-component-labelling-in-vtkhdf-for-paraview/15641)

<div class="topic-metadata">

**Author:** [@jpmorr](https://discourse.paraview.org/u/jpmorr)\
**Replies:** 7\
**Last updated:** [October 30, 2024, 8:20am UTC](https://discourse.paraview.org/t/data-array-multi-component-labelling-in-vtkhdf-for-paraview/15641 "2024-10-30T08:20:45Z")

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Named components for xml based vtk files was discussed here in this post. Is there an equivalent support for VTKHDF files in paraview? If I just add ComponentName attributes to the point or cell data in the hdf file lik…

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## [Regarding streamlines](https://discourse.paraview.org/t/regarding-streamlines/14852)

<div class="topic-metadata">

**Author:** [@Stayal](https://discourse.paraview.org/u/Stayal)\
**Replies:** 7\
**Last updated:** [June 16, 2024, 11:27am UTC](https://discourse.paraview.org/t/regarding-streamlines/14852 "2024-06-16T11:27:53Z")

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Hello everyone In the second figure, we see that two secondary vortices are in the bottom left. When I flip the center of the axis, the first figure shows that the bottom left vortex is removed, and three vortices…

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## [Paraview - remote distributed rendering : how to showcase](https://discourse.paraview.org/t/paraview-remote-distributed-rendering-how-to-showcase/7705)

<div class="topic-metadata">

**Author:** [@Nicholas\_Yue](https://discourse.paraview.org/u/Nicholas_Yue)\
**Replies:** 1\
**Last updated:** [August 2, 2021, 8:02am UTC](https://discourse.paraview.org/t/paraview-remote-distributed-rendering-how-to-showcase/7705 "2021-08-02T08:02:29Z")

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Hi, I have build and setup Paraview+pserver on a cluster of Jetson Nano. The cluster contains 5 nodes (pc\[0-4\]). I am running paraview on pc0 and running mpiexec -np 4 -hosts pc1,pc2,pc3,pc4 pvserver I am able to con…

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## [Where can I find: test\_poly\_data.hdf ?](https://discourse.paraview.org/t/where-can-i-find-test-poly-data-hdf/14342)

<div class="topic-metadata">

**Author:** [@AhmedSalih3d](https://discourse.paraview.org/u/AhmedSalih3d)\
**Replies:** 6\
**Last updated:** [April 30, 2024, 7:50am UTC](https://discourse.paraview.org/t/where-can-i-find-test-poly-data-hdf/14342 "2024-04-30T07:50:47Z")

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I am using Julia to write .hdf files and I need to write a version with PolyData type. VTK File Formats - VTK documentation The docs mention test\_poly\_data.hdf, I would like to have it as a file I can open. Please don’t…

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## [Vertical color legends with horizontal title clash with the Use Above Range Color](https://discourse.paraview.org/t/vertical-color-legends-with-horizontal-title-clash-with-the-use-above-range-color/14059)

<div class="topic-metadata">

**Author:** [@GregVernon](https://discourse.paraview.org/u/GregVernon)\
**Replies:** 2\
**Last updated:** [March 2, 2024, 4:27am UTC](https://discourse.paraview.org/t/vertical-color-legends-with-horizontal-title-clash-with-the-use-above-range-color/14059 "2024-03-02T04:27:30Z")

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Does anyone know of a workaround for using a vertical colorbar with a horizontal title, when using the Use Above Color Range option (without going to horizontal legend or vertical title)? I’ve been trying (unsuccessf…

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## [No CUDA-capable device is detected when using NVIDIA IndeX plugin](https://discourse.paraview.org/t/no-cuda-capable-device-is-detected-when-using-nvidia-index-plugin/14121)

<div class="topic-metadata">

**Author:** [@jsiguenza](https://discourse.paraview.org/u/jsiguenza)\
**Replies:** 3\
**Last updated:** [March 14, 2024, 9:37pm UTC](https://discourse.paraview.org/t/no-cuda-capable-device-is-detected-when-using-nvidia-index-plugin/14121 "2024-03-14T21:37:46Z")

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Hi! I am trying to use the NVIDIA IndeX plugin in Paraview. I am on Windows11 system and downloaded ParaView-5.12.0-MPI-Windows-Python3.10-msvc2017-AMD64.msi. Here is what the command nvidia-smi gives me: I loaded…

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## [Restore state with files on remote server is hanging](https://discourse.paraview.org/t/restore-state-with-files-on-remote-server-is-hanging/11018)

<div class="topic-metadata">

**Author:** [@dpugmire](https://discourse.paraview.org/u/dpugmire)\
**Replies:** 3\
**Last updated:** [December 19, 2022, 7:25pm UTC](https://discourse.paraview.org/t/restore-state-with-files-on-remote-server-is-hanging/11018 "2022-12-19T19:25:39Z")

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I have a state file (on the client side) that I’m trying to open. The datasets are on the server side (Andes at OLCF) I’m doing the following steps: Fire up PV 5.10.0 connect to server restore state file. I’ve tried a…

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## [MacOS ParaView 5.8.1-RC1 Python 3 issue](https://discourse.paraview.org/t/macos-paraview-5-8-1-rc1-python-3-issue/4874)

<div class="topic-metadata">

**Author:** [@MBG](https://discourse.paraview.org/u/MBG)\
**Replies:** 0\
**Last updated:** [July 17, 2020, 2:29pm UTC](https://discourse.paraview.org/t/macos-paraview-5-8-1-rc1-python-3-issue/4874 "2020-07-17T14:29:35Z")

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\>\>\> Python 3.7.4 (default, Jul 17 2020, 07:58:07) \[Clang 8.1.0 (clang-802.0.42)\] on darwin \>\>\> from paraview.simple import \* \>\>\> \>\>\> import xarray as xr Traceback (most recent call last): File "\<console\>", line 1, i…

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## [Visualize voxel-wise P-value maps with different colors for each voxel depending on its value](https://discourse.paraview.org/t/visualize-voxel-wise-p-value-maps-with-different-colors-for-each-voxel-depending-on-its-value/6077)

<div class="topic-metadata">

**Author:** [@Junhao\_Wen](https://discourse.paraview.org/u/Junhao_Wen)\
**Replies:** 0\
**Last updated:** [December 16, 2020, 4:30pm UTC](https://discourse.paraview.org/t/visualize-voxel-wise-p-value-maps-with-different-colors-for-each-voxel-depending-on-its-value/6077 "2020-12-16T16:30:15Z")

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Hi, I want to visualize a brain statistical maps (containing only hippocampus regions) in a glass brain template. I can create this by creating mesh files, vtk, and overlay them. However, the vtk file does not contain c…

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## [Xdmf3 reader : blocks & finite element functions](https://discourse.paraview.org/t/xdmf3-reader-blocks-finite-element-functions/3103)

<div class="topic-metadata">

**Author:** [@xgarnaud](https://discourse.paraview.org/u/xgarnaud)\
**Replies:** 0\
**Last updated:** [December 3, 2019, 8:38am UTC](https://discourse.paraview.org/t/xdmf3-reader-blocks-finite-element-functions/3103 "2019-12-03T08:38:35Z")

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Dear Paraview developpers, I’d like to use the xdmf format to store data in a 3d volume as wall as on the different boundaries, and I’d like to use the finite element function feature. Unlike for the Xdmf2 reader, th…

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## [adjust manually colors to desired range](https://discourse.paraview.org/t/adjust-manually-colors-to-desired-range/1618)

<div class="topic-metadata">

**Author:** [@fanfan](https://discourse.paraview.org/u/fanfan)\
**Replies:** 0\
**Last updated:** [April 7, 2019, 7:47pm UTC](https://discourse.paraview.org/t/adjust-manually-colors-to-desired-range/1618 "2019-04-07T19:47:58Z")

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Hi, I would like to be able to change the color scale to certain desired levels ex: start of range at 0.07, 1.2, ,2.5, 10, 19 etc, It seems that the color scale can only be adjusted manually in a very approximate manne…

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## [Library not loaded: @rpath/Python3.framework/Versions/3.9/Python3](https://discourse.paraview.org/t/library-not-loaded-rpath-python3-framework-versions-3-9-python3/14013)

<div class="topic-metadata">

**Author:** [@zhe](https://discourse.paraview.org/u/zhe)\
**Replies:** 2\
**Last updated:** [February 26, 2024, 1:45am UTC](https://discourse.paraview.org/t/library-not-loaded-rpath-python3-framework-versions-3-9-python3/14013 "2024-02-26T01:45:52Z")

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Hi, I try to install paraview (tag: v5.12.0-RC3) on Mac. The code is ok to build, but I got this error when I execute the executable file: $ ./bin/paraview.app/Contents/MacOS/paraview dyld\[25562\]: Library not loaded: …

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## [multiple bugs affecting AMReX grid datasets](https://discourse.paraview.org/t/multiple-bugs-affecting-amrex-grid-datasets/9123)

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**Author:** [@BenWibking](https://discourse.paraview.org/u/BenWibking)\
**Replies:** 1\
**Last updated:** [January 8, 2025, 11:17pm UTC](https://discourse.paraview.org/t/multiple-bugs-affecting-amrex-grid-datasets/9123 "2025-01-08T23:17:16Z")

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There are multiple bugs preventing correct rendering of AMReX (i.e. BoxLib format) grid datasets. I’ve opened an issue, so I just want to make sure it didn’t get missed in bug triage. There’s also a GitHub discussion thr…

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## [ttk and other filter not able to use](https://discourse.paraview.org/t/ttk-and-other-filter-not-able-to-use/10260)

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**Author:** [@Pravin\_Poudel](https://discourse.paraview.org/u/Pravin_Poudel)\
**Replies:** 1\
**Last updated:** [September 7, 2022, 7:47am UTC](https://discourse.paraview.org/t/ttk-and-other-filter-not-able-to-use/10260 "2022-09-07T07:47:52Z")

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I opened the paraview and loaded the ttk from plugin lists. Then clicked on the file option in menu and clicked open in the dropdown and selected mt stl file. Made it visible by clicking on eye symbol in pipeline. …

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## [How can I get the main renderwindow of PV?](https://discourse.paraview.org/t/how-can-i-get-the-main-renderwindow-of-pv/6290)

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**Author:** [@lyz](https://discourse.paraview.org/u/lyz)\
**Replies:** 1\
**Last updated:** [January 25, 2021, 9:23am UTC](https://discourse.paraview.org/t/how-can-i-get-the-main-renderwindow-of-pv/6290 "2021-01-25T09:23:07Z")

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How can I get the main vtkRenderWindow or vtkRenderer from the PV using C++?

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## [Accessing virtual environment within Paraview](https://discourse.paraview.org/t/accessing-virtual-environment-within-paraview/16295)

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**Author:** [@mcgoldba](https://discourse.paraview.org/u/mcgoldba)\
**Replies:** 3\
**Last updated:** [March 12, 2025, 10:52pm UTC](https://discourse.paraview.org/t/accessing-virtual-environment-within-paraview/16295 "2025-03-12T22:52:40Z")

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I am attempting to access a virtual environment within paraview as described here: Using Python Virtual environments in ParaView 5.13.0 However, when I try to start paraview with paraview --venv .venv/, The paraview in…

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## [Save animation is very slow](https://discourse.paraview.org/t/save-animation-is-very-slow/14234)

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**Author:** [@legno](https://discourse.paraview.org/u/legno)\
**Replies:** 3\
**Last updated:** [March 25, 2024, 1:20pm UTC](https://discourse.paraview.org/t/save-animation-is-very-slow/14234 "2024-03-25T13:20:40Z")

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Hello, I am using Paraview 5.12.0. When I save an animation as a .avi file by doing File → Save animation, it takes forever, it is stuck at the window attached. How may I get around this ? Thank you

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## [Reload Python Algorithm through Python Shell](https://discourse.paraview.org/t/reload-python-algorithm-through-python-shell/14094)

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**Author:** [@HollowSun0](https://discourse.paraview.org/u/HollowSun0)\
**Replies:** 3\
**Last updated:** [March 13, 2024, 6:10pm UTC](https://discourse.paraview.org/t/reload-python-algorithm-through-python-shell/14094 "2024-03-13T18:10:37Z")

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Hi everyone! I’m currently looking for a way to reload a python algorithm through the python shell At the moment, I’m able to trigger a reload using the following: python\_algorithm = FindSource("PythonAlgorithmExample…

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## [sys.exit() command fails in paraview 5.7](https://discourse.paraview.org/t/sys-exit-command-fails-in-paraview-5-7/5826)

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**Author:** [@aerogt3](https://discourse.paraview.org/u/aerogt3)\
**Replies:** 0\
**Last updated:** [November 17, 2020, 8:23am UTC](https://discourse.paraview.org/t/sys-exit-command-fails-in-paraview-5-7/5826 "2020-11-17T08:23:13Z")

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I have a python script which is often run in batch on a server, but also run locally to load and setup data for manual visualization (and to debug/write the scripts). I have many sys.exit() calls which catch common error…

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## [pvserver crashes at Cell Data to Point Data conversion filter](https://discourse.paraview.org/t/pvserver-crashes-at-cell-data-to-point-data-conversion-filter/4455)

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**Author:** [@dutta-alankar](https://discourse.paraview.org/u/dutta-alankar)\
**Replies:** 0\
**Last updated:** [May 30, 2020, 8:38am UTC](https://discourse.paraview.org/t/pvserver-crashes-at-cell-data-to-point-data-conversion-filter/4455 "2020-05-30T08:38:51Z")

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I’m using a pvserver built on EGL rendering. It is crashing whenever I’m selecting Cell Data to Point Data conversion filter. It is happening for both single and multiple nodes on the server side. My data is vtk of size …

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## [How to determine one point is within one enclosed block or not](https://discourse.paraview.org/t/how-to-determine-one-point-is-within-one-enclosed-block-or-not/2314)

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**Author:** [@sharon](https://discourse.paraview.org/u/sharon)\
**Replies:** 0\
**Last updated:** [July 29, 2019, 1:34pm UTC](https://discourse.paraview.org/t/how-to-determine-one-point-is-within-one-enclosed-block-or-not/2314 "2019-07-29T13:34:59Z")

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Dear Experts, In my situation, there are tens of enclosed blocks, and when given one point, i need to check this point is in which block, or not in any block. my block is vtkPolyData, read from STL file. Is there any …

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## [pivot arrow to the midpoint](https://discourse.paraview.org/t/pivot-arrow-to-the-midpoint/15116)

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**Author:** [@sumeshpt](https://discourse.paraview.org/u/sumeshpt)\
**Replies:** 4\
**Last updated:** [July 26, 2024, 2:10pm UTC](https://discourse.paraview.org/t/pivot-arrow-to-the-midpoint/15116 "2024-07-26T14:10:33Z")

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Hi, I am wondering whether anybody knows how to pivot the mid point of the glyph vector to the grid point? I am plotting a nematic director (no head/tail, and thus a line) whose mid point should coincide with the grid p…

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## [simple.Show(trivialProducer) takes much time](https://discourse.paraview.org/t/simple-show-trivialproducer-takes-much-time/6826)

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**Author:** [@Superstarimage](https://discourse.paraview.org/u/Superstarimage)\
**Replies:** 0\
**Last updated:** [March 30, 2021, 1:44pm UTC](https://discourse.paraview.org/t/simple-show-trivialproducer-takes-much-time/6826 "2021-03-30T13:44:04Z")

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Hello, When I using this program bellow to draw a line, I find that the code ‘simple.Show(trivialProducer)’ has spent amost 0.04s. In other examples, such as draw a clone, or simple polydata wrote by myself, also spent …

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## [Paraview hangs when updating slice filter origin](https://discourse.paraview.org/t/paraview-hangs-when-updating-slice-filter-origin/12733)

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**Author:** [@NotDrJeff](https://discourse.paraview.org/u/NotDrJeff)\
**Replies:** 2\
**Last updated:** [August 22, 2023, 2:25pm UTC](https://discourse.paraview.org/t/paraview-hangs-when-updating-slice-filter-origin/12733 "2023-08-22T14:25:06Z")

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Hello, I have written a python script for use with pvbatch. I have tried it with PV version 5.10.1 and 5.11.1 on a linux cluster. I load an openfoam case, apply some filters including taking a slice, followed by some m…

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## [save data as vtk 4.2 datafile version?](https://discourse.paraview.org/t/save-data-as-vtk-4-2-datafile-version/13388)

<div class="topic-metadata">

**Author:** [@Archana](https://discourse.paraview.org/u/Archana)\
**Replies:** 1\
**Last updated:** [November 30, 2023, 1:51am UTC](https://discourse.paraview.org/t/save-data-as-vtk-4-2-datafile-version/13388 "2023-11-30T01:51:20Z")

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When I save data (loaded from a vts file) as Legacy vtk format, it is written out as vts 5.1 version. Is it possible to save my data as VTK Datafile version 4.2? Your suggestions would be greatly appreciated Archana

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## [Multi Cores Web based ParaView with all build-in filters](https://discourse.paraview.org/t/multi-cores-web-based-paraview-with-all-build-in-filters/12783)

<div class="topic-metadata">

**Author:** [@Ari](https://discourse.paraview.org/u/Ari)\
**Replies:** 1\
**Last updated:** [August 31, 2023, 2:54pm UTC](https://discourse.paraview.org/t/multi-cores-web-based-paraview-with-all-build-in-filters/12783 "2023-08-31T14:54:22Z")

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We are using ParaView at the moment to visualize OpenFoam files and we are planning to use Web based ParaView such as Trame or similar products (that sever to do heavy-lifting and browser rendering the results). We are l…

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## [Floating point error after mesh transform](https://discourse.paraview.org/t/floating-point-error-after-mesh-transform/8753)

<div class="topic-metadata">

**Author:** [@Yann\_G-R](https://discourse.paraview.org/u/Yann_G-R)\
**Replies:** 1\
**Last updated:** [January 11, 2022, 9:33am UTC](https://discourse.paraview.org/t/floating-point-error-after-mesh-transform/8753 "2022-01-11T09:33:59Z")

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Hi, for my OpenFoam simulation I perform a Hammer-Aitov Transformation. This works pretty well, however when opening the transformed data in paraview there are some render issues. When I set to surface in representation…

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