# Top

**URL:** https://discourse.paraview.org/top.md?page=45&period=all

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**Page:** 46

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## [How ParaView load a directory of dicom files and render a volume?](https://discourse.paraview.org/t/how-paraview-load-a-directory-of-dicom-files-and-render-a-volume/6124)

<div class="topic-metadata">

**Author:** [@wulicheng](https://discourse.paraview.org/u/wulicheng)\
**Replies:** 1\
**Last updated:** [January 4, 2021, 10:17am UTC](https://discourse.paraview.org/t/how-paraview-load-a-directory-of-dicom-files-and-render-a-volume/6124 "2021-01-04T10:17:19Z")

</div>

Is the Paraview has command or action to load directory of dicom files and construct it with 3D. Does the UI has ? Can anyone tell me? The “Radiant dicom viewer” has as the flowing picture:

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## [Angle measurement tool](https://discourse.paraview.org/t/angle-measurement-tool/12487)

<div class="topic-metadata">

**Author:** [@Julien\_Bomberault](https://discourse.paraview.org/u/Julien_Bomberault)\
**Replies:** 4\
**Last updated:** [September 18, 2023, 9:33am UTC](https://discourse.paraview.org/t/angle-measurement-tool/12487 "2023-09-18T09:33:12Z")

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Hello there, Please correct me if I am wrong: I did not find any angle measurement tool. Until now I tried to find one on the internet or I drew two tangent lines by hand to obtain numerical parameters and to compute m…

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## [Modules and kits - what is the difference?](https://discourse.paraview.org/t/modules-and-kits-what-is-the-difference/2486)

<div class="topic-metadata">

**Author:** [@cobo](https://discourse.paraview.org/u/cobo)\
**Replies:** 6\
**Last updated:** [August 31, 2019, 10:16am UTC](https://discourse.paraview.org/t/modules-and-kits-what-is-the-difference/2486 "2019-08-31T10:16:14Z")

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Looking through the reorganized build system of ParaView 5.7 RC2, I find modules (with specification files vtk.module) and kits (specified in vtk.kit files) - and the question arises about what is the difference? Because…

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## [Internal .foam reader for OpenFOAM data: Issue with fixedGradient boundary condition](https://discourse.paraview.org/t/internal-foam-reader-for-openfoam-data-issue-with-fixedgradient-boundary-condition/698)

<div class="topic-metadata">

**Author:** [@ykanani](https://discourse.paraview.org/u/ykanani)\
**Replies:** 3\
**Last updated:** [October 11, 2018, 10:14am UTC](https://discourse.paraview.org/t/internal-foam-reader-for-openfoam-data-issue-with-fixedgradient-boundary-condition/698 "2018-10-11T10:14:35Z")

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Hi, The OpenFOAM data writer does not write the face values associated to the fixedGradient boundary condition. If ParaView is loaded with Openfoam libraries (i.e. ParaFoam), ParaView correctly evaluates the patch value…

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## [Enabling ray tracing with glyphs](https://discourse.paraview.org/t/enabling-ray-tracing-with-glyphs/7603)

<div class="topic-metadata">

**Author:** [@Miguel\_Angel\_Salazar](https://discourse.paraview.org/u/Miguel_Angel_Salazar)\
**Replies:** 6\
**Last updated:** [August 3, 2021, 12:12pm UTC](https://discourse.paraview.org/t/enabling-ray-tracing-with-glyphs/7603 "2021-08-03T12:12:10Z")

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Whenever I click on “Enable Ray Tracing” and I have a Glyph object in my scene, a big object appears out of nowhere: I am referring to the ball and the cone in the bottom left. Is this somehow a light used by the ray…

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## [Strange lines on the isosurface visualisation](https://discourse.paraview.org/t/strange-lines-on-the-isosurface-visualisation/6367)

<div class="topic-metadata">

**Author:** [@heisenmech](https://discourse.paraview.org/u/heisenmech)\
**Replies:** 7\
**Last updated:** [February 4, 2021, 12:46am UTC](https://discourse.paraview.org/t/strange-lines-on-the-isosurface-visualisation/6367 "2021-02-04T00:46:43Z")

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Hi all, I’m using Paraview for iso-surface visualisations, data of which comes from Fluent. Everything works smoothly apart from some strange white lines on the surface as you can see in the screenshot below. There is n…

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## [Add Structured indexes to unstructured grid format(vtu)](https://discourse.paraview.org/t/add-structured-indexes-to-unstructured-grid-format-vtu/2120)

<div class="topic-metadata">

**Author:** [@Toorall](https://discourse.paraview.org/u/Toorall)\
**Replies:** 4\
**Last updated:** [June 27, 2019, 1:06pm UTC](https://discourse.paraview.org/t/add-structured-indexes-to-unstructured-grid-format-vtu/2120 "2019-06-27T13:06:16Z")

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Hello everyone, I have a structured grid, but in unstructured file format(.vtu). It can be converted to structured format (.vts), but there are some reasons I want it to stay in unstructured form. But I still want to …

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## [Error PVTU Files ~ URGENT](https://discourse.paraview.org/t/error-pvtu-files-urgent/7214)

<div class="topic-metadata">

**Author:** [@Holly\_O\_Neill](https://discourse.paraview.org/u/Holly_O_Neill)\
**Replies:** 7\
**Last updated:** [May 14, 2021, 6:12pm UTC](https://discourse.paraview.org/t/error-pvtu-files-urgent/7214 "2021-05-14T18:12:47Z")

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Hello I am trying to read pvtu files but each time this error pops up… I redownloaded paraview and the files just to make sure and now the VTU files aren’t even working… ERROR: In C:\\glr\\builds\\paraview\\paraview-ci\\bui…

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## [vtkPythonSelector (0x55f2f1af8bf0): Failed to import 'paraview.python\_selector'](https://discourse.paraview.org/t/vtkpythonselector-0x55f2f1af8bf0-failed-to-import-paraview-python-selector/7382)

<div class="topic-metadata">

**Author:** [@verminator](https://discourse.paraview.org/u/verminator)\
**Replies:** 5\
**Last updated:** [June 8, 2021, 7:53pm UTC](https://discourse.paraview.org/t/vtkpythonselector-0x55f2f1af8bf0-failed-to-import-paraview-python-selector/7382 "2021-06-08T19:53:09Z")

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i get this error on my machine when trying to use the “Find Data” functionality. "Warning: In /build/paraview-SVeOv3/paraview-5.7.0/ParaViewCore/ClientServerCore/Core/vtkPythonSelector.cxx, line 56 vtkPythonSelector (0…

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## [Paraview in python: ModuleNotFoundError](https://discourse.paraview.org/t/paraview-in-python-modulenotfounderror/11220)

<div class="topic-metadata">

**Author:** [@kskollepara](https://discourse.paraview.org/u/kskollepara)\
**Replies:** 3\
**Last updated:** [August 23, 2023, 3:30pm UTC](https://discourse.paraview.org/t/paraview-in-python-modulenotfounderror/11220 "2023-08-23T15:30:06Z")

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I am sure this is a trivial question (I am a beginner in paraview): I am importing paraview.simple from the anaconda python interpreter (OS: Ubuntu 22.04). As per the comments written in paraview/\_\_init\_\_.py, I understan…

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## [Paraview 5.5 can't be run in Windows XP x64](https://discourse.paraview.org/t/paraview-5-5-cant-be-run-in-windows-xp-x64/244)

<div class="topic-metadata">

**Author:** [@Someone\_fromjapan](https://discourse.paraview.org/u/Someone_fromjapan)\
**Replies:** 4\
**Last updated:** [July 23, 2018, 11:53pm UTC](https://discourse.paraview.org/t/paraview-5-5-cant-be-run-in-windows-xp-x64/244 "2018-07-23T23:53:09Z")

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I have a big problems using ParaView in Windows 7x64 (bug #18255) So I tried running it in Windows XP x64 SP1. And after installation it says, “paraview x64 is not a valid 32bit application”… while it is x64 build of c…

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## [pvbatch with EGL device on HPC](https://discourse.paraview.org/t/pvbatch-with-egl-device-on-hpc/9262)

<div class="topic-metadata">

**Author:** [@jirikolar](https://discourse.paraview.org/u/jirikolar)\
**Replies:** 7\
**Last updated:** [March 23, 2022, 8:51pm UTC](https://discourse.paraview.org/t/pvbatch-with-egl-device-on-hpc/9262 "2022-03-23T20:51:18Z")

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Hi, I compiled paraview in headless mode with EGL support. However, I can use it only if PBS scheduler assigns me the very first GPU in the node (index 0). If it assigns me any other card, despite it is visible within t…

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## [Creating a 'nice' orbit path for an animation](https://discourse.paraview.org/t/creating-a-nice-orbit-path-for-an-animation/6216)

<div class="topic-metadata">

**Author:** [@Ada12](https://discourse.paraview.org/u/Ada12)\
**Replies:** 5\
**Last updated:** [January 13, 2021, 7:10pm UTC](https://discourse.paraview.org/t/creating-a-nice-orbit-path-for-an-animation/6216 "2021-01-13T19:10:52Z")

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I’ll start with - I’m definitely being dumb here, but after 2 days of trying to execute I’m out of ideas. I want to make a camera orbit fully around my 3D rendering - think when you’re customising a model in some 3D gam…

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## [Smoothing the output of Rotational Extrusion](https://discourse.paraview.org/t/smoothing-the-output-of-rotational-extrusion/6211)

<div class="topic-metadata">

**Author:** [@woodscn](https://discourse.paraview.org/u/woodscn)\
**Replies:** 7\
**Last updated:** [January 13, 2021, 5:35pm UTC](https://discourse.paraview.org/t/smoothing-the-output-of-rotational-extrusion/6211 "2021-01-13T17:35:32Z")

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I’m trying to make a visually impressive (as in, I’m willing to sacrifice some technical accuracy) 3-D movie based on 2-D axisymmetric data. I’ll walk through the steps I’ve tried and the reasons why. I have cell-center…

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## [UI resolution very low](https://discourse.paraview.org/t/ui-resolution-very-low/5774)

<div class="topic-metadata">

**Author:** [@datathing](https://discourse.paraview.org/u/datathing)\
**Replies:** 5\
**Last updated:** [February 2, 2021, 1:49pm UTC](https://discourse.paraview.org/t/ui-resolution-very-low/5774 "2021-02-02T13:49:32Z")

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Hi, I’m a first time user today and just installed Paraview 5.9.0 on Windows 10. The UI seems to have a really low resolution and I can’t see any option to change it. I can see a few similar-ish posts about UI resolutio…

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## [Attach arrow to mesh](https://discourse.paraview.org/t/attach-arrow-to-mesh/2691)

<div class="topic-metadata">

**Author:** [@eelcovanvliet](https://discourse.paraview.org/u/eelcovanvliet)\
**Replies:** 4\
**Last updated:** [October 25, 2019, 12:47pm UTC](https://discourse.paraview.org/t/attach-arrow-to-mesh/2691 "2019-10-25T12:47:03Z")

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Hi all, I have a mesh data set that I can deform using Warp by Vector filter. I also have another data set containing a single force vector (at location \[0,0,0\], with components \[fx(t),fy(t),fz(t)\]. I can use Transform …

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## [paraview.simple SaveData Paraview 5.6 built on Ubuntu .04](https://discourse.paraview.org/t/paraview-simple-savedata-paraview-5-6-built-on-ubuntu-04/1487)

<div class="topic-metadata">

**Author:** [@raymon68](https://discourse.paraview.org/u/raymon68)\
**Replies:** 4\
**Last updated:** [March 19, 2019, 5:33pm UTC](https://discourse.paraview.org/t/paraview-simple-savedata-paraview-5-6-built-on-ubuntu-04/1487 "2019-03-19T17:33:08Z")

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Hello. I hope this problem has been solved. If it has, lob a tomato at me with the url for the fix printed on it. I am using paraview simple. Eclipse is the editor. I am trying to read in ExodusIIData ship it out to…

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## [Dynamic scene](https://discourse.paraview.org/t/dynamic-scene/399)

<div class="topic-metadata">

**Author:** [@GPsalachs](https://discourse.paraview.org/u/GPsalachs)\
**Replies:** 5\
**Last updated:** [August 27, 2018, 1:57pm UTC](https://discourse.paraview.org/t/dynamic-scene/399 "2018-08-27T13:57:52Z")

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Hello, Is it possible to export a full 3D dynamic scene? If possible how is it done? Thank you!

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## [Open .pvd file](https://discourse.paraview.org/t/open-pvd-file/4046)

<div class="topic-metadata">

**Author:** [@Maria\_Perez](https://discourse.paraview.org/u/Maria_Perez)\
**Replies:** 1\
**Last updated:** [April 14, 2020, 3:14am UTC](https://discourse.paraview.org/t/open-pvd-file/4046 "2020-04-14T03:14:49Z")

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Hi, Im using for the first time Paraview, I did some simulations and I would like to open in Paraview. I have a .pvd file (animation.pvd) and a set of .vtu files. When I try to run the .pvd file I have the next errors: …

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## [How does one actually build the Catalyst Examples?](https://discourse.paraview.org/t/how-does-one-actually-build-the-catalyst-examples/1327)

<div class="topic-metadata">

**Author:** [@bastian](https://discourse.paraview.org/u/bastian)\
**Replies:** 4\
**Last updated:** [February 25, 2019, 4:30pm UTC](https://discourse.paraview.org/t/how-does-one-actually-build-the-catalyst-examples/1327 "2019-02-25T16:30:46Z")

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My attempt on a linux HPC cluster with with lots of guessing involved: git clone https://github.com/Kitware/ParaView.git cd ParaView/Examples/Catalyst/Fortran90FullExample mkdir build cd build cmake -DCMAKE\_PREFIX\_PATH=…

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## [Script to extract data from Plot over Line](https://discourse.paraview.org/t/script-to-extract-data-from-plot-over-line/2851)

<div class="topic-metadata">

**Author:** [@CLDi](https://discourse.paraview.org/u/CLDi)\
**Replies:** 0\
**Last updated:** [October 25, 2019, 5:46pm UTC](https://discourse.paraview.org/t/script-to-extract-data-from-plot-over-line/2851 "2019-10-25T17:46:52Z")

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Hi everyone, This is my first time posting here. I’ve been playing around with Paraview to automate some task to ease my Data analysis procedure. I’m trying to extract the data of several files using the Plot over Line…

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## [Strange effects with volume representation](https://discourse.paraview.org/t/strange-effects-with-volume-representation/2951)

<div class="topic-metadata">

**Author:** [@cobo](https://discourse.paraview.org/u/cobo)\
**Replies:** 6\
**Last updated:** [November 12, 2019, 2:23pm UTC](https://discourse.paraview.org/t/strange-effects-with-volume-representation/2951 "2019-11-12T14:23:27Z")

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Just downloaded and installed Paraview 5.7 on two brand new Lenovo T590 notebooks, both with Interl UHD Graphics 620, but the one with Windows 10 (1903) and the other with Ubuntu 18.04. On the Windows machine there seem…

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## [Visualizing streamlines from a case file (StarCCM+)](https://discourse.paraview.org/t/visualizing-streamlines-from-a-case-file-starccm/13880)

<div class="topic-metadata">

**Author:** [@Nouamane](https://discourse.paraview.org/u/Nouamane)\
**Replies:** 7\
**Last updated:** [February 7, 2024, 9:31am UTC](https://discourse.paraview.org/t/visualizing-streamlines-from-a-case-file-starccm/13880 "2024-02-07T09:31:53Z")

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Hello, I am looking forward to create streamlines from a case file imported on Paraview. (I don’t want to import them directly as vtk format on the visualizer). The main issue here is that I am exporting all the veloci…

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## [Paraview 5.10 won't run on Mac](https://discourse.paraview.org/t/paraview-5-10-wont-run-on-mac/8156)

<div class="topic-metadata">

**Author:** [@michaich](https://discourse.paraview.org/u/michaich)\
**Replies:** 2\
**Last updated:** [October 11, 2021, 3:12pm UTC](https://discourse.paraview.org/t/paraview-5-10-wont-run-on-mac/8156 "2021-10-11T15:12:04Z")

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I downloaded the new Paraview 5.10 release candidate ( ParaView-5.10.0-RC1-MPI-OSX11.0-Python3.9-arm64.pkg) on my Mac. Installation was successful but I get this error message when I try to open it: You can’t open the …

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## [IMU/ INS integration with VLP-16 & LiDARView](https://discourse.paraview.org/t/imu-ins-integration-with-vlp-16-lidarview/10577)

<div class="topic-metadata">

**Author:** [@Splocal](https://discourse.paraview.org/u/Splocal)\
**Replies:** 5\
**Last updated:** [November 17, 2022, 6:10pm UTC](https://discourse.paraview.org/t/imu-ins-integration-with-vlp-16-lidarview/10577 "2022-11-17T18:10:57Z")

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Hello, Is there a plug-in for LiDARView that will allow IMU/INS data to integrate with the LiDAR data to increase accuracy? Also has loop closure been implemented yet in LiDARView? Pretty new to this, I was looking th…

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## [How to properly warp by vector](https://discourse.paraview.org/t/how-to-properly-warp-by-vector/14050)

<div class="topic-metadata">

**Author:** [@herman](https://discourse.paraview.org/u/herman)\
**Replies:** 8\
**Last updated:** [March 6, 2024, 1:35pm UTC](https://discourse.paraview.org/t/how-to-properly-warp-by-vector/14050 "2024-03-06T13:35:32Z")

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Hi, I have a 3D displacement and velocity field and I’m trying to display a slice of the velocity field that’s warped by the displacement field. However, it seems that warp by vector makes an extra blank slice that coinc…

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## [extract volume](https://discourse.paraview.org/t/extract-volume/6497)

<div class="topic-metadata">

**Author:** [@ValeRomano](https://discourse.paraview.org/u/ValeRomano)\
**Replies:** 3\
**Last updated:** [February 18, 2021, 6:34pm UTC](https://discourse.paraview.org/t/extract-volume/6497 "2021-02-18T18:34:36Z")

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Hello, I need to extract a subset volume from my domain in order to make same calculation on the data. How can I do this? I need this subset at each time step. Attached a figure showing the domain, I need to extract th…

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## [Performance difference caused by local rendering and remote rendering](https://discourse.paraview.org/t/performance-difference-caused-by-local-rendering-and-remote-rendering/6684)

<div class="topic-metadata">

**Author:** [@Superstarimage](https://discourse.paraview.org/u/Superstarimage)\
**Replies:** 7\
**Last updated:** [March 18, 2021, 5:22pm UTC](https://discourse.paraview.org/t/performance-difference-caused-by-local-rendering-and-remote-rendering/6684 "2021-03-18T17:22:25Z")

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Hello, I am testing the web client performance using VTK as server in remote mode. We read a obj model in the local file which has 1 billion triangle faces and got 3 fps. But when we rendered the same model with vtk rend…

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## [number of cell](https://discourse.paraview.org/t/number-of-cell/3097)

<div class="topic-metadata">

**Author:** [@Vaya\_Putra](https://discourse.paraview.org/u/Vaya_Putra)\
**Replies:** 4\
**Last updated:** [December 2, 2019, 3:38pm UTC](https://discourse.paraview.org/t/number-of-cell/3097 "2019-12-02T15:38:21Z")

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coba.vtu (152.2 KB) hi i have grid 25x25, i am confused since i visualize in paraview the number of cell not in order, its like random. is that a problem from my VTU file ? thank you

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## [Saving data with time steps](https://discourse.paraview.org/t/saving-data-with-time-steps/8835)

<div class="topic-metadata">

**Author:** [@chis54](https://discourse.paraview.org/u/chis54)\
**Replies:** 6\
**Last updated:** [January 26, 2022, 12:37am UTC](https://discourse.paraview.org/t/saving-data-with-time-steps/8835 "2022-01-26T00:37:53Z")

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I have a simulation with time steps that are not spaced evenly. I am using the save data to export my model at PLY files for each time step. Is there a way to also export the time values per step so that I can post proce…

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## [Could not determine discrete values to use for annotations](https://discourse.paraview.org/t/could-not-determine-discrete-values-to-use-for-annotations/6630)

<div class="topic-metadata">

**Author:** [@theodorebaltis](https://discourse.paraview.org/u/theodorebaltis)\
**Replies:** 5\
**Last updated:** [March 9, 2021, 2:04pm UTC](https://discourse.paraview.org/t/could-not-determine-discrete-values-to-use-for-annotations/6630 "2021-03-09T14:04:52Z")

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I’m trying to create a discrete color bar for my data. When I click “Interpret Values as Categories” in the Color Map Editor I am presented with this warning: Though my dataset consists of integers and has less than …

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## [How to export ParaView colormap into a format that could be read by matplotlib](https://discourse.paraview.org/t/how-to-export-paraview-colormap-into-a-format-that-could-be-read-by-matplotlib/2436)

<div class="topic-metadata">

**Author:** [@wascott](https://discourse.paraview.org/u/wascott)\
**Replies:** 1\
**Last updated:** [October 24, 2019, 5:17am UTC](https://discourse.paraview.org/t/how-to-export-paraview-colormap-into-a-format-that-could-be-read-by-matplotlib/2436 "2019-10-24T05:17:20Z")

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A beautiful little python function that Cory Quammen created: Sure, here is a little function that can export the color map in a table: def ExportPreset(lutName): from paraview import servermanager presets = paravi…

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## [I cannot view .vtu file in Paraview.](https://discourse.paraview.org/t/i-cannot-view-vtu-file-in-paraview/7448)

<div class="topic-metadata">

**Author:** [@Vyacheslav\_Siniy](https://discourse.paraview.org/u/Vyacheslav_Siniy)\
**Replies:** 3\
**Last updated:** [June 20, 2021, 5:44am UTC](https://discourse.paraview.org/t/i-cannot-view-vtu-file-in-paraview/7448 "2021-06-20T05:44:53Z")

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Hello. I have a .vtu file, but I cannot view it in Paraview. I’ve tried on another one (some sample from the Internet) and it works fine, so maybe something is wrong with my file. Can you please help me? (I have two vers…

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## [Working with Adaptive Mesh Refinement (AMR) data](https://discourse.paraview.org/t/working-with-adaptive-mesh-refinement-amr-data/10215)

<div class="topic-metadata">

**Author:** [@trenton.carpenter](https://discourse.paraview.org/u/trenton.carpenter)\
**Replies:** 6\
**Last updated:** [September 3, 2022, 2:11am UTC](https://discourse.paraview.org/t/working-with-adaptive-mesh-refinement-amr-data/10215 "2022-09-03T02:11:17Z")

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I’m working with a CFD data set, it is of an object floating in a fluid, about 300 \*.dat files (imports correctly with “TecPlot Reader” option selected). The data is from a CFD analysis with moving boundaries and adaptiv…

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## [ParaView 5.7 RC1: ray tracing seems to cause unexpected behaviours with handle widgets.](https://discourse.paraview.org/t/paraview-5-7-rc1-ray-tracing-seems-to-cause-unexpected-behaviours-with-handle-widgets/2206)

<div class="topic-metadata">

**Author:** [@phil\_ossk](https://discourse.paraview.org/u/phil_ossk)\
**Replies:** 1\
**Last updated:** [July 12, 2019, 10:06pm UTC](https://discourse.paraview.org/t/paraview-5-7-rc1-ray-tracing-seems-to-cause-unexpected-behaviours-with-handle-widgets/2206 "2019-07-12T22:06:35Z")

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Hello, I just installed 5.7.0-RC1 and was playing around with it when I noticed the following: it looks like enabling Ray Tracing causes some funny behaviours with objects that have handles. For instance, if I have an…

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## [How to add temperature data for external mesh?](https://discourse.paraview.org/t/how-to-add-temperature-data-for-external-mesh/5387)

<div class="topic-metadata">

**Author:** [@rasunag27](https://discourse.paraview.org/u/rasunag27)\
**Replies:** 2\
**Last updated:** [September 22, 2020, 2:27pm UTC](https://discourse.paraview.org/t/how-to-add-temperature-data-for-external-mesh/5387 "2020-09-22T14:27:26Z")

</div>

Dear All, I have a dataset which contains x, y and z co-ordinates along with temperature data. Since, it is point clouds and in Paraview it is visible as points, Delaunay gave very rough mesh and so I could not create a…

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## [pvbatch core dump](https://discourse.paraview.org/t/pvbatch-core-dump/2714)

<div class="topic-metadata">

**Author:** [@DanPar](https://discourse.paraview.org/u/DanPar)\
**Replies:** 5\
**Last updated:** [October 8, 2019, 3:52am UTC](https://discourse.paraview.org/t/pvbatch-core-dump/2714 "2019-10-08T03:52:32Z")

</div>

Hi, I am working on Ubuntu 18.04 LTS with Paraview 5.7. I have saved my python script p.py while I was performing all my operations and saving screenshots. When i try to execute with pvbatch I got this error: termina…

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## [Missing data after slice](https://discourse.paraview.org/t/missing-data-after-slice/4359)

<div class="topic-metadata">

**Author:** [@Rob777](https://discourse.paraview.org/u/Rob777)\
**Replies:** 4\
**Last updated:** [May 20, 2020, 7:50am UTC](https://discourse.paraview.org/t/missing-data-after-slice/4359 "2020-05-20T07:50:44Z")

</div>

Hi everybody, I have a tridimensional domain (a cylinder) of a scalar field. The case represents flow over an airfoil. After taking a slice of it (a plane parallel to the two cylinder’s faces and passing to the midpoint…

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## [Setting "Line Width" below 1?](https://discourse.paraview.org/t/setting-line-width-below-1/5475)

<div class="topic-metadata">

**Author:** [@AhmedSalih3d](https://discourse.paraview.org/u/AhmedSalih3d)\
**Replies:** 4\
**Last updated:** [October 5, 2020, 4:40pm UTC](https://discourse.paraview.org/t/setting-line-width-below-1/5475 "2020-10-05T16:40:15Z")

</div>

Hello! I can increase line width as I want, but if I try to set it below 1, it does not decrease? Is there anyway to force it to decrease. Kind regards

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## [Material and OSPRay](https://discourse.paraview.org/t/material-and-ospray/706)

<div class="topic-metadata">

**Author:** [@pcrepier](https://discourse.paraview.org/u/pcrepier)\
**Replies:** 1\
**Last updated:** [October 11, 2018, 1:02pm UTC](https://discourse.paraview.org/t/material-and-ospray/706 "2018-10-11T13:02:30Z")

</div>

Hi everyone, I carry on with my attempts to make my rendering look fancy. Lately, I got some impressive results using OSPRay with the pathtracer renderer. I saw that the materials where defined in a json file. I success…

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## [vtkAppendPolyData ?](https://discourse.paraview.org/t/vtkappendpolydata/3766)

<div class="topic-metadata">

**Author:** [@gujax](https://discourse.paraview.org/u/gujax)\
**Replies:** 8\
**Last updated:** [March 11, 2020, 2:52am UTC](https://discourse.paraview.org/t/vtkappendpolydata/3766 "2020-03-11T02:52:37Z")

</div>

Hi I am absolutely new to Paraview and only using its Qt-viewer. The solids are being generated by another application (GEANT4). So I generated one cone and another hollow cone surrounding the first cone. When I form a…

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## [can not open in paraview](https://discourse.paraview.org/t/can-not-open-in-paraview/2371)

<div class="topic-metadata">

**Author:** [@Vaya\_Putra](https://discourse.paraview.org/u/Vaya_Putra)\
**Replies:** 4\
**Last updated:** [September 2, 2019, 3:01pm UTC](https://discourse.paraview.org/t/can-not-open-in-paraview/2371 "2019-09-02T15:01:51Z")

</div>

does anyone could help me? i make new grid 100x100x1 i create by using excel to define consist of 10000 cell and 20402 node and connectivity. but i got problem to visualize in paraview Generic Warning: In /build/para…

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## [VTKPythonAlgorithmBase for custom annotations](https://discourse.paraview.org/t/vtkpythonalgorithmbase-for-custom-annotations/1939)

<div class="topic-metadata">

**Author:** [@siver](https://discourse.paraview.org/u/siver)\
**Replies:** 5\
**Last updated:** [June 14, 2019, 11:39am UTC](https://discourse.paraview.org/t/vtkpythonalgorithmbase-for-custom-annotations/1939 "2019-06-14T11:39:36Z")

</div>

Dear devs, Can one use the VTKPythonAlgorithmBase class to create annotation filters, i.e. show additional descriptive text? I have managed to open a table in a separate window, but never to show a text in the same wind…

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## [How to plot live residuals and forces of a simpleFoam steady-state simulation using Catalyst in Paraview ?](https://discourse.paraview.org/t/how-to-plot-live-residuals-and-forces-of-a-simplefoam-steady-state-simulation-using-catalyst-in-paraview/5984)

<div class="topic-metadata">

**Author:** [@OlivierM](https://discourse.paraview.org/u/OlivierM)\
**Replies:** 3\
**Last updated:** [December 9, 2020, 7:51pm UTC](https://discourse.paraview.org/t/how-to-plot-live-residuals-and-forces-of-a-simplefoam-steady-state-simulation-using-catalyst-in-paraview/5984 "2020-12-09T19:51:07Z")

</div>

Hello, I am new on OpenFoam and Paraview. I am able to run simulation and to plot residuals and forces at the end using the .dat files in the PostProcessing folders, But I can’t manage to follow these on live in Paravi…

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## [general framework to compare different .vtk files (just visualizing)](https://discourse.paraview.org/t/general-framework-to-compare-different-vtk-files-just-visualizing/7640)

<div class="topic-metadata">

**Author:** [@simonw](https://discourse.paraview.org/u/simonw)\
**Replies:** 5\
**Last updated:** [July 19, 2021, 3:32pm UTC](https://discourse.paraview.org/t/general-framework-to-compare-different-vtk-files-just-visualizing/7640 "2021-07-19T15:32:45Z")

</div>

Dear all, I am a beginner to paraview and just confronted with a rather simple issue. I have two different .vtk files (groups) where each group stores a different number of time steps and I would like to compare them i…

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## [Building a code using Catalyst with cmake](https://discourse.paraview.org/t/building-a-code-using-catalyst-with-cmake/595)

<div class="topic-metadata">

**Author:** [@mdorier](https://discourse.paraview.org/u/mdorier)\
**Replies:** 2\
**Last updated:** [September 20, 2018, 10:11pm UTC](https://discourse.paraview.org/t/building-a-code-using-catalyst-with-cmake/595 "2018-09-20T22:11:40Z")

</div>

Hi, I’m having troubles building a code that uses Catalyst. The code is built with cmake, so its CMakeLists.txt file has the following: if(ENABLE\_CATALYST) find\_package(ParaView 4.3 REQUIRED COMPONENTS vtkPVPythonCat…

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## [Volume Rendering with original image colors; removing the black fill](https://discourse.paraview.org/t/volume-rendering-with-original-image-colors-removing-the-black-fill/5192)

<div class="topic-metadata">

**Author:** [@Davincible](https://discourse.paraview.org/u/Davincible)\
**Replies:** 4\
**Last updated:** [August 27, 2020, 7:55pm UTC](https://discourse.paraview.org/t/volume-rendering-with-original-image-colors-removing-the-black-fill/5192 "2020-08-27T19:55:07Z")

</div>

I have a bunch of images like this: And I am looking to reconstruct them in a 3D model. Loading the data into Paraview, I am able to do so if I use a color map (enable Map Scalars & Ray Tracing), resulting in: However…

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## [How to make the colour legend white at 0.](https://discourse.paraview.org/t/how-to-make-the-colour-legend-white-at-0/10001)

<div class="topic-metadata">

**Author:** [@Paravu](https://discourse.paraview.org/u/Paravu)\
**Replies:** 4\
**Last updated:** [July 13, 2022, 1:39pm UTC](https://discourse.paraview.org/t/how-to-make-the-colour-legend-white-at-0/10001 "2022-07-13T13:39:29Z")

</div>

Hi, I’d like values above 0 to be varying levels of red, and for values below to be varying levels of blue. I’d like 0 to be white. How do I do that? Is it even possible?

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## [Time support in VTK/Paraview](https://discourse.paraview.org/t/time-support-in-vtk-paraview/6878)

<div class="topic-metadata">

**Author:** [@pevoz](https://discourse.paraview.org/u/pevoz)\
**Replies:** 3\
**Last updated:** [February 27, 2023, 2:15am UTC](https://discourse.paraview.org/t/time-support-in-vtk-paraview/6878 "2023-02-27T02:15:47Z")

</div>

From my C++ code for a scientific simulation, I’m exporting .vtp files to be visualized with paraview. Until now, I was using a constant time step length so the task was easy: I just named my files as out\_i.vtp, imported…

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## [paraview on master does not load python plugins](https://discourse.paraview.org/t/paraview-on-master-does-not-load-python-plugins/1343)

<div class="topic-metadata">

**Author:** [@danlipsa](https://discourse.paraview.org/u/danlipsa)\
**Replies:** 3\
**Last updated:** [February 23, 2019, 12:49pm UTC](https://discourse.paraview.org/t/paraview-on-master-does-not-load-python-plugins/1343 "2019-02-23T12:49:38Z")

</div>

Hi all, I am trying to load a python plugin and I am getting the following error. Note the same plugin loads correctly with ParaView 5.6 release. Do you have any suggestions? Thanks, ERROR: In /home/danlipsa/projects/…

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