# Top

**URL:** https://discourse.paraview.org/top.md?page=76&period=all

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**Page:** 77

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## [PV5.9.1: Rendering Artefacts, Win10, GTX1650](https://discourse.paraview.org/t/pv5-9-1-rendering-artefacts-win10-gtx1650/8567)

<div class="topic-metadata">

**Author:** [@cfd\_payne](https://discourse.paraview.org/u/cfd_payne)\
**Replies:** 7\
**Last updated:** [December 8, 2021, 9:45am UTC](https://discourse.paraview.org/t/pv5-9-1-rendering-artefacts-win10-gtx1650/8567 "2021-12-08T09:45:03Z")

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While trying to interact \[rotate,pan ,zoom\]with dormant \*.paraview state files opened after a while \[few days,hrs\] leads to the below :- Test Set : Comb.xyz, Comb.q combxyz\_artefacts1.pvsm (840.1 KB) point the fi…

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## [How to set up material lookuptable for OSPRay](https://discourse.paraview.org/t/how-to-set-up-material-lookuptable-for-ospray/56)

<div class="topic-metadata">

**Author:** [@Dave\_DeMarle](https://discourse.paraview.org/u/Dave_DeMarle)\
**Replies:** 0\
**Last updated:** [May 31, 2018, 6:49pm UTC](https://discourse.paraview.org/t/how-to-set-up-material-lookuptable-for-ospray/56 "2018-05-31T18:49:31Z")

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Howdy, The new OSPRay path tracer in ParaView 5.5.0 has a mode in which each cell gets a material assigned via colormapping. To use it: choose “Value Indexed” for the OSPRay Material instead of any of the individual m…

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## [Paraview vs OpenFOAM vtp slice plotting with matplotlib](https://discourse.paraview.org/t/paraview-vs-openfoam-vtp-slice-plotting-with-matplotlib/10941)

<div class="topic-metadata">

**Author:** [@Gabriel\_Axtmann](https://discourse.paraview.org/u/Gabriel_Axtmann)\
**Replies:** 3\
**Last updated:** [November 9, 2023, 6:45am UTC](https://discourse.paraview.org/t/paraview-vs-openfoam-vtp-slice-plotting-with-matplotlib/10941 "2023-11-09T06:45:30Z")

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Hi maybe you can help me out with a right comment or hint for my problem. Pretty easy, I would like to plot a 2D slice vtp file (OpenFOAM) via matplotlib as tricontourf plot. 1.) Creating the vtp slice by Paraview and…

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## [Exporting transient simulation result from ANSYS Fluent to Paraview](https://discourse.paraview.org/t/exporting-transient-simulation-result-from-ansys-fluent-to-paraview/7260)

<div class="topic-metadata">

**Author:** [@Alimokh91](https://discourse.paraview.org/u/Alimokh91)\
**Replies:** 1\
**Last updated:** [May 20, 2021, 2:53pm UTC](https://discourse.paraview.org/t/exporting-transient-simulation-result-from-ansys-fluent-to-paraview/7260 "2021-05-20T14:53:32Z")

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Hi I have my ANSYS Fluent result, my case was transient simulation. Before knowing ParaView, I saved all data for all the time steps in the CFD post compatible format which is not readable in ParaView. Now I know that…

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## [Is there a filter to normalise the input data?](https://discourse.paraview.org/t/is-there-a-filter-to-normalise-the-input-data/10389)

<div class="topic-metadata">

**Author:** [@hxhxhx33](https://discourse.paraview.org/u/hxhxhx33)\
**Replies:** 2\
**Last updated:** [September 27, 2022, 10:31am UTC](https://discourse.paraview.org/t/is-there-a-filter-to-normalise-the-input-data/10389 "2022-09-27T10:31:51Z")

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I am rendering a 3D medical image, and want to normalize the input data to have a zero mean and unit variance, i.e. to subtract from each voxel the mean and then divide it by the std. I have googled but failed to find a …

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## [Threshold on slice using an ellipse](https://discourse.paraview.org/t/threshold-on-slice-using-an-ellipse/4532)

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**Author:** [@yek\_irani](https://discourse.paraview.org/u/yek_irani)\
**Replies:** 2\
**Last updated:** [June 8, 2020, 6:33pm UTC](https://discourse.paraview.org/t/threshold-on-slice-using-an-ellipse/4532 "2020-06-08T18:33:03Z")

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Hello, I am making a slice along the Y-normal plane. However, I would like to look at results confined to a region bounded by an elliptical surface. The region I want to visualize is restricted to where x^2/a^2 + z^2/b^…

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## [Change time label in Current Time toolbar](https://discourse.paraview.org/t/change-time-label-in-current-time-toolbar/6025)

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**Author:** [@Raimonds\_Vilums](https://discourse.paraview.org/u/Raimonds_Vilums)\
**Replies:** 3\
**Last updated:** [December 14, 2020, 11:27am UTC](https://discourse.paraview.org/t/change-time-label-in-current-time-toolbar/6025 "2020-12-14T11:27:29Z")

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Hi! Is there a possibility to change the text “Time:” in the Current Time toolbar to something else without rebuilding all ParaView? We use different frequency values for optimization. The animation is handy, but the t…

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## [Looking for PARAVIEW GUIDE (version 2004 - Henderson)](https://discourse.paraview.org/t/looking-for-paraview-guide-version-2004-henderson/5830)

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**Author:** [@MiguelAngelAGUIRRE](https://discourse.paraview.org/u/MiguelAngelAGUIRRE)\
**Replies:** 5\
**Last updated:** [November 23, 2020, 1:53pm UTC](https://discourse.paraview.org/t/looking-for-paraview-guide-version-2004-henderson/5830 "2020-11-23T13:53:54Z")

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Hello, I’m looking for this version of the Paraview Guide but it seems to be no longer available: I’m particularly interested in the PART 2 (Developer’s Guide), especially in chapters 18 to 22 (Anything related to XM…

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## [About the velocity vector visualization of lagrangian data](https://discourse.paraview.org/t/about-the-velocity-vector-visualization-of-lagrangian-data/12295)

<div class="topic-metadata">

**Author:** [@t45454](https://discourse.paraview.org/u/t45454)\
**Replies:** 4\
**Last updated:** [June 14, 2023, 1:01am UTC](https://discourse.paraview.org/t/about-the-velocity-vector-visualization-of-lagrangian-data/12295 "2023-06-14T01:01:19Z")

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Hi all, I was trying to visualize the velocity field of Lagrangian data and met a problem. Is it possible to add velocity vector arrows on each particle, to better visualize the particle flow pattern? I tried Lagrangian…

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## [NetCDF file gives error "Incorrect Dimensionality"](https://discourse.paraview.org/t/netcdf-file-gives-error-incorrect-dimensionality/7254)

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**Author:** [@datathing](https://discourse.paraview.org/u/datathing)\
**Replies:** 2\
**Last updated:** [May 11, 2022, 7:52am UTC](https://discourse.paraview.org/t/netcdf-file-gives-error-incorrect-dimensionality/7254 "2022-05-11T07:52:17Z")

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Hi, I generated some NetCDF files using FloPy (flopy3\_export.ipynb) and tried to import and view these in ParaView, but I get an ‘Incorrect Dimensionality’ error for every single file NetCDF (.nc) file. Any ideas wh…

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## [paraview-superbuild for optix ppc64le](https://discourse.paraview.org/t/paraview-superbuild-for-optix-ppc64le/6661)

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**Author:** [@danlipsa](https://discourse.paraview.org/u/danlipsa)\
**Replies:** 8\
**Last updated:** [March 9, 2021, 10:45pm UTC](https://discourse.paraview.org/t/paraview-superbuild-for-optix-ppc64le/6661 "2021-03-09T22:45:42Z")

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I am trying to compile paraview on a P9 (ppc64le) machine (summit) with Optix and I get an error at install time - every compiled successfully. Strangely, the library where it fails dds.so seems to be a i86 library. @ben…

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## [A VTK error during make](https://discourse.paraview.org/t/a-vtk-error-during-make/8017)

<div class="topic-metadata">

**Author:** [@Chong\_ZHENG](https://discourse.paraview.org/u/Chong_ZHENG)\
**Replies:** 7\
**Last updated:** [September 20, 2021, 6:19pm UTC](https://discourse.paraview.org/t/a-vtk-error-during-make/8017 "2021-09-20T18:19:08Z")

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I have the following error when I tried to make it, please help. .../VTK/ThirdParty/hdf5/vtkhdf5/src/H5Oint.c:358:12: error: implicit declaration of function 'vtkhdf5\_H5CX\_get\_ohdr\_flags' is invalid in C99 \[-Werror,-Wim…

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## [Python - Slice Face two separate data sets](https://discourse.paraview.org/t/python-slice-face-two-separate-data-sets/3876)

<div class="topic-metadata">

**Author:** [@chart3388](https://discourse.paraview.org/u/chart3388)\
**Replies:** 2\
**Last updated:** [March 24, 2020, 9:33pm UTC](https://discourse.paraview.org/t/python-slice-face-two-separate-data-sets/3876 "2020-03-24T21:33:07Z")

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Hi All, I have a thin surface with different values on the front and back face (front and back are just arbitrary names given for ease). We’d like to be able to separate the front face data and the back face data into …

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## [lighting bug with Gauraud shading of 'inverted' models](https://discourse.paraview.org/t/lighting-bug-with-gauraud-shading-of-inverted-models/881)

<div class="topic-metadata">

**Author:** [@Marcin\_Krotkiewski](https://discourse.paraview.org/u/Marcin_Krotkiewski)\
**Replies:** 2\
**Last updated:** [November 12, 2018, 8:17am UTC](https://discourse.paraview.org/t/lighting-bug-with-gauraud-shading-of-inverted-models/881 "2018-11-12T08:17:11Z")

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Hi, I came across this problem: when I transform my model with Z scale = -1, my transformed model is much darker when I use Gauraud shading, compared to Flat shading. Two pictures and the VTK model attached. The ‘Flat’ …

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## [How to add include directories to manual plugin build](https://discourse.paraview.org/t/how-to-add-include-directories-to-manual-plugin-build/5214)

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**Author:** [@Fabian188](https://discourse.paraview.org/u/Fabian188)\
**Replies:** 3\
**Last updated:** [May 15, 2021, 4:06pm UTC](https://discourse.paraview.org/t/how-to-add-include-directories-to-manual-plugin-build/5214 "2021-05-15T16:06:30Z")

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We have a plugin which we build for many years for PV. We adopted it to the new structure and it works fine with the plugin-builder. For Mac I try to integrate it with the paraview-superbuild. I have a superbuild in pv\_…

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## [Gradient background "banding" in avi animation.](https://discourse.paraview.org/t/gradient-background-banding-in-avi-animation/273)

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**Author:** [@Someone\_fromjapan](https://discourse.paraview.org/u/Someone_fromjapan)\
**Replies:** 4\
**Last updated:** [July 24, 2018, 12:18am UTC](https://discourse.paraview.org/t/gradient-background-banding-in-avi-animation/273 "2018-07-24T00:18:19Z")

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Why is avi animation saved in that huge size with that bad quality? CRAM codec. A proprietary, half century old, and outdated crap: 8-bit palettized or 15-bit RGB color space for ISO-bus x286 MCGA machines… Vhy not F…

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## [Origin](https://discourse.paraview.org/t/origin/3090)

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**Author:** [@DominionSoftware](https://discourse.paraview.org/u/DominionSoftware)\
**Replies:** 1\
**Last updated:** [December 2, 2019, 8:53am UTC](https://discourse.paraview.org/t/origin/3090 "2019-12-02T08:53:17Z")

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Is it possible to change a whole scene origin?

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## [Python Scripting Paraview parameters on paraview web](https://discourse.paraview.org/t/python-scripting-paraview-parameters-on-paraview-web/5823)

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**Author:** [@indrajit](https://discourse.paraview.org/u/indrajit)\
**Replies:** 6\
**Last updated:** [November 19, 2020, 6:49am UTC](https://discourse.paraview.org/t/python-scripting-paraview-parameters-on-paraview-web/5823 "2020-11-19T06:49:12Z")

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Hello, I am trying to figure out how to best use ParaView on a Linux guest running on a VirtualBox VM to render some MR Angio flow paths. Background: On a Linux system running directly on the metal, a Python script use…

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## [Scratch on unfolded cylinder](https://discourse.paraview.org/t/scratch-on-unfolded-cylinder/10774)

<div class="topic-metadata">

**Author:** [@Marvin](https://discourse.paraview.org/u/Marvin)\
**Replies:** 7\
**Last updated:** [November 30, 2022, 11:05am UTC](https://discourse.paraview.org/t/scratch-on-unfolded-cylinder/10774 "2022-11-30T11:05:58Z")

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Hi, I use the following formula to unfold a cylinder coordsZ\*iHat+(atan(coordsX/coordsY)+(coordsY/abs(coordsY))1.57)(coordsX^2+coordsY^2)^(1/2)jHat+0kHat The cylinder is unfolded but the rendering is not good Do y…

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## [Parallel rendering - Opening large raw dataset crash](https://discourse.paraview.org/t/parallel-rendering-opening-large-raw-dataset-crash/5838)

<div class="topic-metadata">

**Author:** [@kmilo9999](https://discourse.paraview.org/u/kmilo9999)\
**Replies:** 5\
**Last updated:** [November 19, 2020, 9:16pm UTC](https://discourse.paraview.org/t/parallel-rendering-opening-large-raw-dataset-crash/5838 "2020-11-19T21:16:38Z")

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Hello, I am working on a cluste environment using parallel rendering. So far, it works with some datasets (TIFF stacks), but it crashes when I load a .raw file. http://cdn.klacansky.com/open-scivis-datasets/pig\_heart/…

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## [Solid Color Option Not Recorded In Trace](https://discourse.paraview.org/t/solid-color-option-not-recorded-in-trace/325)

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**Author:** [@jgonzalez49](https://discourse.paraview.org/u/jgonzalez49)\
**Replies:** 3\
**Last updated:** [July 18, 2018, 9:53am UTC](https://discourse.paraview.org/t/solid-color-option-not-recorded-in-trace/325 "2018-07-18T09:53:54Z")

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Hi, I’ve noticed that selecting the Solid Color option is not recorded when tracing. Here are the steps I’m taking in Paraview 5.5.2: Start trace in Paraview, with full tracing and incremental display. Open VTK produce…

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## [Removing part of the model (Remove particles within model)](https://discourse.paraview.org/t/removing-part-of-the-model-remove-particles-within-model/6301)

<div class="topic-metadata">

**Author:** [@shahrokh](https://discourse.paraview.org/u/shahrokh)\
**Replies:** 2\
**Last updated:** [January 26, 2021, 10:24am UTC](https://discourse.paraview.org/t/removing-part-of-the-model-remove-particles-within-model/6301 "2021-01-26T10:24:41Z")

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Hello Dear Developers and Users As shown in the following figure; I have two models with the names of particlesSystem.vtk and ROI.vtk (Spherical shape). I want to do two steps: Step #1- Extract particles within ROI …

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## [Segmentation fault while Visualizing/Creating contours,slices.](https://discourse.paraview.org/t/segmentation-fault-while-visualizing-creating-contours-slices/1258)

<div class="topic-metadata">

**Author:** [@vrkssai](https://discourse.paraview.org/u/vrkssai)\
**Replies:** 2\
**Last updated:** [February 8, 2019, 10:34pm UTC](https://discourse.paraview.org/t/segmentation-fault-while-visualizing-creating-contours-slices/1258 "2019-02-08T22:34:33Z")

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Loading a 2x2x2 dimensions lagrange hexahedron element type of order 1 and trying to visualize the slices, clipping or contour leads to segmentation fault. I suspected corrupted vtk file so I created a sample element fro…

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## [Create atan2 function in programmable filter](https://discourse.paraview.org/t/create-atan2-function-in-programmable-filter/7065)

<div class="topic-metadata">

**Author:** [@woodscn](https://discourse.paraview.org/u/woodscn)\
**Replies:** 2\
**Last updated:** [April 26, 2021, 3:19pm UTC](https://discourse.paraview.org/t/create-atan2-function-in-programmable-filter/7065 "2021-04-26T15:19:36Z")

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I’m trying to create a programmable filter that does something similar to the atan2 function in many languages, accounting for the periodicity of the arctan function. Unfortunately, I’m struggling to understand the way t…

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## [PBR options in paraview 5.9RC2 MacOS](https://discourse.paraview.org/t/pbr-options-in-paraview-5-9rc2-macos/6012)

<div class="topic-metadata">

**Author:** [@amlucas](https://discourse.paraview.org/u/amlucas)\
**Replies:** 2\
**Last updated:** [December 8, 2020, 2:59pm UTC](https://discourse.paraview.org/t/pbr-options-in-paraview-5-9rc2-macos/6012 "2020-12-08T14:59:11Z")

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Hello, I have just switched from paraview 5.8.1 to paraview 5.9 RC2. I really liked the PBR in the lighting options when rendering surfaces. However, I cannot find it in the newer release. Has it disappeared or moved…

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## [ParaView GUI crashes (Win 10, Paraview 5.8.0)](https://discourse.paraview.org/t/paraview-gui-crashes-win-10-paraview-5-8-0/4883)

<div class="topic-metadata">

**Author:** [@rex0707](https://discourse.paraview.org/u/rex0707)\
**Replies:** 2\
**Last updated:** [July 19, 2020, 2:38am UTC](https://discourse.paraview.org/t/paraview-gui-crashes-win-10-paraview-5-8-0/4883 "2020-07-19T02:38:18Z")

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Hello, My notebook is Dell XPS 13 with 4K screen but I use external screen with display resolution 1920 x 1800. After I open a vtk file and click the “Apply” button, GUI crashes. The same vtk file can be used in anot…

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## [Import nastran results f06/op2 problem](https://discourse.paraview.org/t/import-nastran-results-f06-op2-problem/1121)

<div class="topic-metadata">

**Author:** [@Stefano\_Milani](https://discourse.paraview.org/u/Stefano_Milani)\
**Replies:** 0\
**Last updated:** [January 8, 2019, 10:52pm UTC](https://discourse.paraview.org/t/import-nastran-results-f06-op2-problem/1121 "2019-01-08T22:52:53Z")

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Dear Paraview community, I need to import a nastran result (f06 or op2) in paraview, but when I try it I give back an error message: Could anyone help me? Best regards Stefano

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## [Custom filter/CPD - Event-Driven](https://discourse.paraview.org/t/custom-filter-cpd-event-driven/295)

<div class="topic-metadata">

**Author:** [@michal.wozniak](https://discourse.paraview.org/u/michal.wozniak)\
**Replies:** 3\
**Last updated:** [July 18, 2018, 12:28am UTC](https://discourse.paraview.org/t/custom-filter-cpd-event-driven/295 "2018-07-18T00:28:27Z")

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Hi @utkarsh.ayachit, My colleagues and I went to meet you a couple of months ago during Kitware’s training courses. We told you about our problem with our huge state files and how long it was taking during each update. …

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## [How to view different layers of a planar process ?](https://discourse.paraview.org/t/how-to-view-different-layers-of-a-planar-process/2700)

<div class="topic-metadata">

**Author:** [@Ashish\_Jayant\_Shukla](https://discourse.paraview.org/u/Ashish_Jayant_Shukla)\
**Replies:** 1\
**Last updated:** [October 7, 2019, 2:54am UTC](https://discourse.paraview.org/t/how-to-view-different-layers-of-a-planar-process/2700 "2019-10-07T02:54:08Z")

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Hi, I have imported a particular geometry (.vtf) file from a chip design software. My geometry is essentially a circuit layout consisting of different layers that are part of the planar process associated with the fabri…

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## [Extract data from a specific point rather than nodes](https://discourse.paraview.org/t/extract-data-from-a-specific-point-rather-than-nodes/5912)

<div class="topic-metadata">

**Author:** [@Alix1](https://discourse.paraview.org/u/Alix1)\
**Replies:** 2\
**Last updated:** [November 27, 2020, 11:54am UTC](https://discourse.paraview.org/t/extract-data-from-a-specific-point-rather-than-nodes/5912 "2020-11-27T11:54:55Z")

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Hi everyone, I have a 3D geometry with unstructured mesh and I would like to extract history data from locations that are not defined by mesh nodes (or points). Is there any possible way to do this in Paraview? Thanks …

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## [possible bug in vtkRectilinearGrid](https://discourse.paraview.org/t/possible-bug-in-vtkrectilineargrid/3451)

<div class="topic-metadata">

**Author:** [@Rigel](https://discourse.paraview.org/u/Rigel)\
**Replies:** 2\
**Last updated:** [January 30, 2020, 2:24pm UTC](https://discourse.paraview.org/t/possible-bug-in-vtkrectilineargrid/3451 "2020-01-30T14:24:10Z")

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Hi, I have a simulation which runs on a simple, rectilinear grid (with 8 points in each Cartesian direction). When running in serial, Catalyst outputs the correct information, which can then be visualized in ParaView ou…

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## [Paraview binaries fail to start on CentOS 7.5.1804](https://discourse.paraview.org/t/paraview-binaries-fail-to-start-on-centos-7-5-1804/2487)

<div class="topic-metadata">

**Author:** [@samfux84](https://discourse.paraview.org/u/samfux84)\
**Replies:** 2\
**Last updated:** [August 30, 2019, 12:02pm UTC](https://discourse.paraview.org/t/paraview-binaries-fail-to-start-on-centos-7-5-1804/2487 "2019-08-30T12:02:54Z")

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Hi, I have installed the ParaView 5.6.2 binaries on our universities HPC cluster. But when trying to start paraview, it only prints out a warning about a fontconfig issue and then abort. The warning does not seem to be…

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## [Catalyst2 detrimental performance](https://discourse.paraview.org/t/catalyst2-detrimental-performance/9135)

<div class="topic-metadata">

**Author:** [@menno](https://discourse.paraview.org/u/menno)\
**Replies:** 8\
**Last updated:** [March 7, 2022, 3:06pm UTC](https://discourse.paraview.org/t/catalyst2-detrimental-performance/9135 "2022-03-07T15:06:17Z")

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I find that using Catalyst2/MeshBlueprint has significant overhead each timestep. This is a big change w.r.t. the first Catalyst, where the VTK-based (mapped) grids could be re-used with only changing fields data. To gi…

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## [pvpython and multiprocess](https://discourse.paraview.org/t/pvpython-and-multiprocess/10771)

<div class="topic-metadata">

**Author:** [@Stefano\_Godi](https://discourse.paraview.org/u/Stefano_Godi)\
**Replies:** 4\
**Last updated:** [November 22, 2022, 9:40am UTC](https://discourse.paraview.org/t/pvpython-and-multiprocess/10771 "2022-11-22T09:40:32Z")

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Hi, I’m trying to use the ProcessThreadPool class of python but I get the following error: Some resources might leak . I’m trying to understand if it’s because I run my python script under pvpython or not. What am I do…

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## [Color map XML format](https://discourse.paraview.org/t/color-map-xml-format/12868)

<div class="topic-metadata">

**Author:** [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)\
**Replies:** 2\
**Last updated:** [September 15, 2023, 5:59am UTC](https://discourse.paraview.org/t/color-map-xml-format/12868 "2023-09-15T05:59:59Z")

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Continuing the discussion from Replacement default color map and background palette: Andrew, I’ve branched this into a new topic. You are right, we should have better documentation of the XML and JSON file formats for …

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## [Absent nodes in 3D Mesh](https://discourse.paraview.org/t/absent-nodes-in-3d-mesh/6099)

<div class="topic-metadata">

**Author:** [@ksheldon](https://discourse.paraview.org/u/ksheldon)\
**Replies:** 3\
**Last updated:** [December 21, 2020, 2:15pm UTC](https://discourse.paraview.org/t/absent-nodes-in-3d-mesh/6099 "2020-12-21T14:15:11Z")

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I have a 3D structured mesh. The XYZ vertices describe a slightly deformed rectangular prism. (K and Z are parallel. The XY plane at any constant K value may undulate in Z) Here is a sample depicting the XYZ outline a…

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## [New trouble opening cell data](https://discourse.paraview.org/t/new-trouble-opening-cell-data/2665)

<div class="topic-metadata">

**Author:** [@Dec](https://discourse.paraview.org/u/Dec)\
**Replies:** 5\
**Last updated:** [October 3, 2019, 3:31am UTC](https://discourse.paraview.org/t/new-trouble-opening-cell-data/2665 "2019-10-03T03:31:05Z")

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All of a sudden opening my solution data has become an issue. In short I use CONVERGE CFD, convert a given solution file to “Paraview in-line binary format”, I then usually work with the cell data file and some of the bo…

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## [Plot variable over block number at a specific timestep](https://discourse.paraview.org/t/plot-variable-over-block-number-at-a-specific-timestep/9956)

<div class="topic-metadata">

**Author:** [@Jeremie](https://discourse.paraview.org/u/Jeremie)\
**Replies:** 4\
**Last updated:** [August 8, 2022, 7:03am UTC](https://discourse.paraview.org/t/plot-variable-over-block-number-at-a-specific-timestep/9956 "2022-08-08T07:03:34Z")

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Hi all, I have several vtk output files from 5 simulations, each with the same number of variables and timesteps. I grouped them together in a Multi-Block Dataset to visualize each simulation’s velocity over time on the…

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## [Corrupt kd tree error in XDMF](https://discourse.paraview.org/t/corrupt-kd-tree-error-in-xdmf/1543)

<div class="topic-metadata">

**Author:** [@Aandreyev](https://discourse.paraview.org/u/Aandreyev)\
**Replies:** 7\
**Last updated:** [January 29, 2020, 4:41pm UTC](https://discourse.paraview.org/t/corrupt-kd-tree-error-in-xdmf/1543 "2020-01-29T16:41:13Z")

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Hi all, I filed an issue for this, but figured I’d reach out here and see if anyone else has run into this issue… When I’m running version 5.6.0 in client server mode with the server side compiled with osmesa off-scree…

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## [Volume of cell mesh, how to calculate](https://discourse.paraview.org/t/volume-of-cell-mesh-how-to-calculate/7450)

<div class="topic-metadata">

**Author:** [@Margot](https://discourse.paraview.org/u/Margot)\
**Replies:** 0\
**Last updated:** [June 20, 2021, 5:56pm UTC](https://discourse.paraview.org/t/volume-of-cell-mesh-how-to-calculate/7450 "2021-06-20T17:56:34Z")

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Hello, I am trying to calculate the volume of the polygonal mesh which is my plaque visualization. When I run in contour, cell size filter, it gives me result like \[2.30944e+07, 2.30944e+07\]. What does it mean and why t…

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## [show particle layer by layer](https://discourse.paraview.org/t/show-particle-layer-by-layer/11978)

<div class="topic-metadata">

**Author:** [@ahjinger](https://discourse.paraview.org/u/ahjinger)\
**Replies:** 6\
**Last updated:** [May 16, 2023, 10:12am UTC](https://discourse.paraview.org/t/show-particle-layer-by-layer/11978 "2023-05-16T10:12:22Z")

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Hi, everyone. How to show particle layer by layer in paraview, and the color in each layer remain constant in various timestep.

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## [FEM stress points in ParaView](https://discourse.paraview.org/t/fem-stress-points-in-paraview/10824)

<div class="topic-metadata">

**Author:** [@raja](https://discourse.paraview.org/u/raja)\
**Replies:** 0\
**Last updated:** [November 20, 2022, 4:09am UTC](https://discourse.paraview.org/t/fem-stress-points-in-paraview/10824 "2022-11-20T04:09:39Z")

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In structyral FEM , the stress are giving in gauss points and exported to paraview. Is paraview is extrapolating the stress value at gauss point to nodla values

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## [Embedding PyQt into a custom python filter](https://discourse.paraview.org/t/embedding-pyqt-into-a-custom-python-filter/1867)

<div class="topic-metadata">

**Author:** [@e-kolosov](https://discourse.paraview.org/u/e-kolosov)\
**Replies:** 3\
**Last updated:** [May 20, 2019, 7:09am UTC](https://discourse.paraview.org/t/embedding-pyqt-into-a-custom-python-filter/1867 "2019-05-20T07:09:05Z")

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Hello. Can i use widgets from PyQt into a custom python filter inherited from VTKPythonAlgorithmBase? I’ve created a simple example. It show a QDialog but don’t process mouse events on button. Thanks in advance. test\_…

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## [Cannot open ParaView](https://discourse.paraview.org/t/cannot-open-paraview/9753)

<div class="topic-metadata">

**Author:** [@groot\_123](https://discourse.paraview.org/u/groot_123)\
**Replies:** 1\
**Last updated:** [June 7, 2022, 6:37am UTC](https://discourse.paraview.org/t/cannot-open-paraview/9753 "2022-06-07T06:37:43Z")

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when i try to open paraview i am getting like this could u help me

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## [Why no EGL version to download?](https://discourse.paraview.org/t/why-no-egl-version-to-download/5559)

<div class="topic-metadata">

**Author:** [@sharon](https://discourse.paraview.org/u/sharon)\
**Replies:** 4\
**Last updated:** [October 15, 2020, 2:38am UTC](https://discourse.paraview.org/t/why-no-egl-version-to-download/5559 "2020-10-15T02:38:01Z")

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Dear Experts, I am curious why there is osmesa version for downloading but not EGL version… It is said EGL version is much better if there are NVIDIA Card on cluster, right? When using NVIDIA IndeX Plugin, which versi…

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## [ParaView FindData Possible Improvements](https://discourse.paraview.org/t/paraview-finddata-possible-improvements/7521)

<div class="topic-metadata">

**Author:** [@mwestphal](https://discourse.paraview.org/u/mwestphal)\
**Replies:** 8\
**Last updated:** [July 7, 2021, 2:48pm UTC](https://discourse.paraview.org/t/paraview-finddata-possible-improvements/7521 "2021-07-07T14:48:19Z")

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FindData as recently been docked but also lost the “query” mode that let user specify exactly how they want to select the data. Bringing back this mode would be already nice but maybe we should take thius further. eg: H…

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## [Contour array is null](https://discourse.paraview.org/t/contour-array-is-null/8855)

<div class="topic-metadata">

**Author:** [@Kenneth](https://discourse.paraview.org/u/Kenneth)\
**Replies:** 2\
**Last updated:** [January 28, 2022, 8:28am UTC](https://discourse.paraview.org/t/contour-array-is-null/8855 "2022-01-28T08:28:10Z")

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I am visualizing a mesh that has 155520 parts (\> 10B elements) on 48 processes using pvbatch. As you can imagine, almost any contour I choose is going to be empty on a large number of those parts. I am assuming that t…

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## [Call pvbatch.exe from a Python script with as argument a file path containing Japanese characters](https://discourse.paraview.org/t/call-pvbatch-exe-from-a-python-script-with-as-argument-a-file-path-containing-japanese-characters/8721)

<div class="topic-metadata">

**Author:** [@aruno14](https://discourse.paraview.org/u/aruno14)\
**Replies:** 5\
**Last updated:** [April 13, 2022, 9:02pm UTC](https://discourse.paraview.org/t/call-pvbatch-exe-from-a-python-script-with-as-argument-a-file-path-containing-japanese-characters/8721 "2022-04-13T21:02:58Z")

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Hello, I want to call pvbatch.exe (on Windows) to create a VTU file, since I use a GUI, I don’t want to block during the process. So, I use the below code: args = \[PARAVIEW\_PATH, input\_file\_path\] print(args) self.parav…

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## [Difference between app with PV's framework and maximum customization](https://discourse.paraview.org/t/difference-between-app-with-pvs-framework-and-maximum-customization/3481)

<div class="topic-metadata">

**Author:** [@Yoshino](https://discourse.paraview.org/u/Yoshino)\
**Replies:** 6\
**Last updated:** [February 13, 2020, 7:40am UTC](https://discourse.paraview.org/t/difference-between-app-with-pvs-framework-and-maximum-customization/3481 "2020-02-13T07:40:00Z")

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I learnt from PV’s wiki webpage that customized application could either be PV-branded or radically different from PV. But I was uncertain about their major difference. Since a PV-branded app could be generated by virt…

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## [ISAV 2020: In Situ Infrastructures for Enabling Extreme-scale Analysis and Visualization Call for Participation](https://discourse.paraview.org/t/isav-2020-in-situ-infrastructures-for-enabling-extreme-scale-analysis-and-visualization-call-for-participation/4391)

<div class="topic-metadata">

**Author:** [@olearypatrick](https://discourse.paraview.org/u/olearypatrick)\
**Replies:** 1\
**Last updated:** [August 24, 2020, 7:39pm UTC](https://discourse.paraview.org/t/isav-2020-in-situ-infrastructures-for-enabling-extreme-scale-analysis-and-visualization-call-for-participation/4391 "2020-08-24T19:39:37Z")

</div>

ISAV 2020: In Situ Infrastructures for Enabling Extreme-scale Analysis and Visualization https://vis.lbl.gov/events/ISAV2020/ Held in conjunction with SC20: The International Conference on High Performance Computing, …

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