# Top

**URL:** https://discourse.paraview.org/top.md?page=166&period=all

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**Page:** 167

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## [In CFD, there are streamlines and streamtubes. What is a stream surface like?](https://discourse.paraview.org/t/in-cfd-there-are-streamlines-and-streamtubes-what-is-a-stream-surface-like/16374)

<div class="topic-metadata">

**Author:** [@hdz19900725](https://discourse.paraview.org/u/hdz19900725)\
**Replies:** 3\
**Last updated:** [March 25, 2025, 8:20am UTC](https://discourse.paraview.org/t/in-cfd-there-are-streamlines-and-streamtubes-what-is-a-stream-surface-like/16374 "2025-03-25T08:20:42Z")

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In CFD, there are streamlines and streamtubes. What is a stream surface like?

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## [bug on a VTK opening](https://discourse.paraview.org/t/bug-on-a-vtk-opening/15171)

<div class="topic-metadata">

**Author:** [@Bastringue](https://discourse.paraview.org/u/Bastringue)\
**Replies:** 3\
**Last updated:** [August 9, 2024, 8:20pm UTC](https://discourse.paraview.org/t/bug-on-a-vtk-opening/15171 "2024-08-09T20:20:58Z")

</div>

Hello, I have generated a .vtu file with MEDCoupling9.7 : it is a 3D Cube with 5 nodes for each axis. I can open it with Visit but not with Paraview-5.4.1. Very strangely, it works for a 4x4x4 nodes ! And by the way, i…

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## [Remove Axis Tick Labels](https://discourse.paraview.org/t/remove-axis-tick-labels/17355)

<div class="topic-metadata">

**Author:** [@Sam\_Austin](https://discourse.paraview.org/u/Sam_Austin)\
**Replies:** 1\
**Last updated:** [December 11, 2025, 8:38am UTC](https://discourse.paraview.org/t/remove-axis-tick-labels/17355 "2025-12-11T08:38:38Z")

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Fairly straightforward question… how can I remove the numbers from the axes but retain the ticks? In this example, I want to remove the numbers. Things I’ve tried: Making the tick number text white (see above) – do…

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## [Is Paraview 6.0RC3 compiled with EGL support?](https://discourse.paraview.org/t/is-paraview-6-0rc3-compiled-with-egl-support/17017)

<div class="topic-metadata">

**Author:** [@alessandro\_de\_maio](https://discourse.paraview.org/u/alessandro_de_maio)\
**Replies:** 1\
**Last updated:** [July 28, 2025, 5:34pm UTC](https://discourse.paraview.org/t/is-paraview-6-0rc3-compiled-with-egl-support/17017 "2025-07-28T17:34:23Z")

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Reading the release notes, it seems that now you can choose the rendering mode (at least with pvbatch) with the --opengl-window-backend but I’m wondering if the official 6.0RC3 has this capability or if that’s available …

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## [Is it normal to get alot of warnings when compling under windows?](https://discourse.paraview.org/t/is-it-normal-to-get-alot-of-warnings-when-compling-under-windows/13742)

<div class="topic-metadata">

**Author:** [@uporersith](https://discourse.paraview.org/u/uporersith)\
**Replies:** 1\
**Last updated:** [January 19, 2024, 8:28pm UTC](https://discourse.paraview.org/t/is-it-normal-to-get-alot-of-warnings-when-compling-under-windows/13742 "2024-01-19T20:28:16Z")

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I’m following the directions from here: https://gitlab.kitware.com/paraview/paraview/-/blob/master/Documentation/dev/build.md#windows (I’m building v5.12.0-RC2) When i get to the ninja step, I get alot of these warning…

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## [difference between points](https://discourse.paraview.org/t/difference-between-points/16357)

<div class="topic-metadata">

**Author:** [@FredrikR](https://discourse.paraview.org/u/FredrikR)\
**Replies:** 2\
**Last updated:** [March 22, 2025, 7:44am UTC](https://discourse.paraview.org/t/difference-between-points/16357 "2025-03-22T07:44:35Z")

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Hi! I have a mesh with data points showing displacement. I would like to plot the displacement difference between 2 points over time. Any suggestions? Best regards Fredrik

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## [discrete color scheme for vtk data](https://discourse.paraview.org/t/discrete-color-scheme-for-vtk-data/15973)

<div class="topic-metadata">

**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 2\
**Last updated:** [January 14, 2025, 12:42pm UTC](https://discourse.paraview.org/t/discrete-color-scheme-for-vtk-data/15973 "2025-01-14T12:42:56Z")

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Hello, I have a vtk data file, with several number of cellIDs (in this case 18 different IDs) is there any way to automatically do a discrete color scheme (that has no transition between different values of IDs, such as…

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## [Strange behavior with comparative view setup](https://discourse.paraview.org/t/strange-behavior-with-comparative-view-setup/15226)

<div class="topic-metadata">

**Author:** [@wkitlasten](https://discourse.paraview.org/u/wkitlasten)\
**Replies:** 2\
**Last updated:** [November 5, 2024, 10:42am UTC](https://discourse.paraview.org/t/strange-behavior-with-comparative-view-setup/15226 "2024-11-05T10:42:39Z")

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I am fairly new to ParaView and I’m struggling to set up a comparative view. I would like a 2x3 layout showing clip filters for layers 5, 6, 7, 8, 9, and 10. Issue 1: Only the first panel would change, all other panels …

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## [How to compute turbulent kinetic energy](https://discourse.paraview.org/t/how-to-compute-turbulent-kinetic-energy/16076)

<div class="topic-metadata">

**Author:** [@Erika](https://discourse.paraview.org/u/Erika)\
**Replies:** 0\
**Last updated:** [January 29, 2025, 8:59am UTC](https://discourse.paraview.org/t/how-to-compute-turbulent-kinetic-energy/16076 "2025-01-29T08:59:43Z")

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Hi, I am quite a new user of Paraview, and I am dealing with the post-process of a CFD simulation. Specifically, I have the 3D velocity and pressure fields of a turbulent simulation, and I would like to find the behavio…

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## [Multi-block inspector with simple](https://discourse.paraview.org/t/multi-block-inspector-with-simple/13801)

<div class="topic-metadata">

**Author:** [@Kim\_Namhyun](https://discourse.paraview.org/u/Kim_Namhyun)\
**Replies:** 0\
**Last updated:** [January 26, 2024, 6:13am UTC](https://discourse.paraview.org/t/multi-block-inspector-with-simple/13801 "2024-01-26T06:13:36Z")

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Firstly, thank you for all who help me everytime I post question here. I have simple question. I just curious if it is possible to use multi-block inspector with paraivew.simple module? In paraview, multi-block inspec…

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## [Plugin for voxel-like representation](https://discourse.paraview.org/t/plugin-for-voxel-like-representation/14036)

<div class="topic-metadata">

**Author:** [@jhdevworks](https://discourse.paraview.org/u/jhdevworks)\
**Replies:** 0\
**Last updated:** [February 27, 2024, 3:13pm UTC](https://discourse.paraview.org/t/plugin-for-voxel-like-representation/14036 "2024-02-27T15:13:03Z")

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Hi all, I am working on a plugin to load and visualize a voxel-like structure called Block, which uses on-the-fly decompression to reduce memory footprint (compared to vtkImageData). I already have a class called vtkBlo…

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## [Visualizing ANSYS Fluent solution data, but produced mesh lines artefacts](https://discourse.paraview.org/t/visualizing-ansys-fluent-solution-data-but-produced-mesh-lines-artefacts/17479)

<div class="topic-metadata">

**Author:** [@Aimannor](https://discourse.paraview.org/u/Aimannor)\
**Replies:** 4\
**Last updated:** [March 19, 2026, 7:11am UTC](https://discourse.paraview.org/t/visualizing-ansys-fluent-solution-data-but-produced-mesh-lines-artefacts/17479 "2026-03-19T07:11:37Z")

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I tried to import ANSYS Fluent solution data in the Encase Gold (ASCII) format into Paraview 6.0.0 RC1. Unfortunately, the resulting visualization included mesh lines. How can I properly visualize the solution data witho…

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## [Paraview Sample Over Line](https://discourse.paraview.org/t/paraview-sample-over-line/16587)

<div class="topic-metadata">

**Author:** [@Frankx9](https://discourse.paraview.org/u/Frankx9)\
**Replies:** 4\
**Last updated:** [May 9, 2025, 5:41am UTC](https://discourse.paraview.org/t/paraview-sample-over-line/16587 "2025-05-09T05:41:42Z")

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Hi, what is the equivalent vtk class used in the Paraview sample over line GUI? I would like to replicate it in python with the vtk wrappers Best

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## [How to increase the display time of the pop-up box when hovering points?](https://discourse.paraview.org/t/how-to-increase-the-display-time-of-the-pop-up-box-when-hovering-points/17440)

<div class="topic-metadata">

**Author:** [@CsatiZoltan](https://discourse.paraview.org/u/CsatiZoltan)\
**Replies:** 7\
**Last updated:** [February 13, 2026, 1:41pm UTC](https://discourse.paraview.org/t/how-to-increase-the-display-time-of-the-pop-up-box-when-hovering-points/17440 "2026-02-13T13:41:15Z")

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Hi, I click on the Hover Points On button to show point data. After about 10 seconds, the pop-up box disappears. When there are many field values associated with a point, I don’t have time to read them. Yes, I know you …

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## [XDMF+HDF5 file crashes ParaView non-deterministically](https://discourse.paraview.org/t/xdmf-hdf5-file-crashes-paraview-non-deterministically/16319)

<div class="topic-metadata">

**Author:** [@CsatiZoltan](https://discourse.paraview.org/u/CsatiZoltan)\
**Replies:** 1\
**Last updated:** [April 2, 2025, 10:57am UTC](https://discourse.paraview.org/t/xdmf-hdf5-file-crashes-paraview-non-deterministically/16319 "2025-04-02T10:57:17Z")

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Hi everyone, My application writes the results into an HDF5 file, and also creates an XDMF file to interpret the data. When I open the XDMF file in Paraview 5.13.2 and click on Apply, ParaView crashes and exits. Here a…

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## [What is the precise difference between client and server side objects?](https://discourse.paraview.org/t/what-is-the-precise-difference-between-client-and-server-side-objects/14877)

<div class="topic-metadata">

**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 1\
**Last updated:** [June 18, 2024, 12:38pm UTC](https://discourse.paraview.org/t/what-is-the-precise-difference-between-client-and-server-side-objects/14877 "2024-06-18T12:38:13Z")

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Hello dear paraview developers! Could you please clarify the difference between client and server side objects? I understand that vtk objects and algorithms mostly dwell in the server side, and on the client side there…

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## [ParaView Catalyst warns instead of raising an error when the script is not found](https://discourse.paraview.org/t/paraview-catalyst-warns-instead-of-raising-an-error-when-the-script-is-not-found/17543)

<div class="topic-metadata">

**Author:** [@Alexandre\_Minot](https://discourse.paraview.org/u/Alexandre_Minot)\
**Replies:** 3\
**Last updated:** [May 4, 2026, 12:53pm UTC](https://discourse.paraview.org/t/paraview-catalyst-warns-instead-of-raising-an-error-when-the-script-is-not-found/17543 "2026-05-04T12:53:28Z")

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Dear all, If the catalyst script is not found, ParaView displays \[pvbatch.0 \]vtkInSituInitialization:295 WARN| File/path does not exist and not in PYTHONPATH: 'my\_paraview\_interface'. Skipping. and the ParaVie…

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## [default settings for openfoam reader and for legends](https://discourse.paraview.org/t/default-settings-for-openfoam-reader-and-for-legends/17453)

<div class="topic-metadata">

**Author:** [@svetlanatkachenko](https://discourse.paraview.org/u/svetlanatkachenko)\
**Replies:** 3\
**Last updated:** [February 26, 2026, 8:31am UTC](https://discourse.paraview.org/t/default-settings-for-openfoam-reader-and-for-legends/17453 "2026-02-26T08:31:34Z")

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i would like to read openfoam cases as ‘decomposed’ by default. i would like to setup legend font as times by default. for these two examples what is the best way to configure them? the ‘edit \> settings’ view does not …

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## [3dConnexion SpaceMouse Variable Zoom Rate](https://discourse.paraview.org/t/3dconnexion-spacemouse-variable-zoom-rate/16013)

<div class="topic-metadata">

**Author:** [@asmith2](https://discourse.paraview.org/u/asmith2)\
**Replies:** 3\
**Last updated:** [January 22, 2025, 2:29pm UTC](https://discourse.paraview.org/t/3dconnexion-spacemouse-variable-zoom-rate/16013 "2025-01-22T14:29:09Z")

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I have a 3dconnexion spacemouse which i am using to navigate large 3d datasets. The plugin works fine except that the motion rates are constant irrespective of the current zoom rendering the spacemouse useless for datase…

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## [pvpython/pvbatch with MPI Build Causes Deadlock on Consecutive Runs](https://discourse.paraview.org/t/pvpython-pvbatch-with-mpi-build-causes-deadlock-on-consecutive-runs/15710)

<div class="topic-metadata">

**Author:** [@anilbeycorintis](https://discourse.paraview.org/u/anilbeycorintis)\
**Replies:** 3\
**Last updated:** [November 12, 2024, 1:41pm UTC](https://discourse.paraview.org/t/pvpython-pvbatch-with-mpi-build-causes-deadlock-on-consecutive-runs/15710 "2024-11-12T13:41:59Z")

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I’m experiencing an issue with ParaView’s pvpython and pvbatch when using an MPI-enabled build (ParaView-5.11.2-egl-MPI-Linux-Python3.9). Specifically, when I run pvpython or pvbatch scripts multiple times from the same …

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## [Surface of high-order DG function includes internal surfaces](https://discourse.paraview.org/t/surface-of-high-order-dg-function-includes-internal-surfaces/12573)

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**Author:** [@Massimiliano\_Leoni](https://discourse.paraview.org/u/Massimiliano_Leoni)\
**Replies:** 0\
**Last updated:** [July 24, 2023, 2:40pm UTC](https://discourse.paraview.org/t/surface-of-high-order-dg-function-includes-internal-surfaces/12573 "2023-07-24T14:40:46Z")

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I have been saving some functions as discontinuous linear or quadratic functions and while postprocessing I realised that the mesh “surfaces” include the facets, aka the boundaries between cells. For example in the scre…

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## [Temporalstatics plot is not doing](https://discourse.paraview.org/t/temporalstatics-plot-is-not-doing/12568)

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**Author:** [@Chhotelal](https://discourse.paraview.org/u/Chhotelal)\
**Replies:** 0\
**Last updated:** [July 24, 2023, 11:17am UTC](https://discourse.paraview.org/t/temporalstatics-plot-is-not-doing/12568 "2023-07-24T11:17:04Z")

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I want to make a time average plot from 2D DEM data. In that case, I follow the following steps but when I applied these steps paraview window automatically closed. I don’t know why this is happening. please help me. DE…

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## [Can paraview measure the characteristic length of the figure of two phase system?](https://discourse.paraview.org/t/can-paraview-measure-the-characteristic-length-of-the-figure-of-two-phase-system/12335)

<div class="topic-metadata">

**Author:** [@abc123](https://discourse.paraview.org/u/abc123)\
**Replies:** 0\
**Last updated:** [June 19, 2023, 4:05pm UTC](https://discourse.paraview.org/t/can-paraview-measure-the-characteristic-length-of-the-figure-of-two-phase-system/12335 "2023-06-19T16:05:38Z")

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Hi everyone, I have a question about figure analysis of using paraview. Can paraview measure the characteristic length of the figure of two phase system? The following figures are generated by Phase field simulation a…

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## [Paraview does not open ElmerGUI vtu result file](https://discourse.paraview.org/t/paraview-does-not-open-elmergui-vtu-result-file/17556)

<div class="topic-metadata">

**Author:** [@Roland01](https://discourse.paraview.org/u/Roland01)\
**Replies:** 2\
**Last updated:** [May 11, 2026, 10:22am UTC](https://discourse.paraview.org/t/paraview-does-not-open-elmergui-vtu-result-file/17556 "2026-05-11T10:22:14Z")

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Hi, after installing the GIT official Elmer compiled last version and Paraview 5.12 on my Kubuntu 24.04 LTS os, everything went ok except that when opening the vtu results file with Paraview it gives an error message, so…

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## [How to save point coordinates in csv after doing Resample to Image?](https://discourse.paraview.org/t/how-to-save-point-coordinates-in-csv-after-doing-resample-to-image/15479)

<div class="topic-metadata">

**Author:** [@sromeo40](https://discourse.paraview.org/u/sromeo40)\
**Replies:** 2\
**Last updated:** [October 1, 2024, 5:08pm UTC](https://discourse.paraview.org/t/how-to-save-point-coordinates-in-csv-after-doing-resample-to-image/15479 "2024-10-01T17:08:14Z")

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Hi, I have my simulation data (i.e., pressure data) in 2D slices over time (.vtk files). I loaded my data in Paraview and reduced the domain as necessary. As my grid was unstructured and I needed a uniform grid, I used …

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## [Preventing ParaView from creating a new SpreadSheetView each time an IntegrateVariables filter is applied](https://discourse.paraview.org/t/preventing-paraview-from-creating-a-new-spreadsheetview-each-time-an-integratevariables-filter-is-applied/14463)

<div class="topic-metadata">

**Author:** [@jean.dupond](https://discourse.paraview.org/u/jean.dupond)\
**Replies:** 2\
**Last updated:** [April 23, 2024, 8:33am UTC](https://discourse.paraview.org/t/preventing-paraview-from-creating-a-new-spreadsheetview-each-time-an-integratevariables-filter-is-applied/14463 "2024-04-23T08:33:17Z")

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Even when a SpreadSheetView already exists, each time an IntegrateVariables filter is applied for the first time while the RenderView is active, a new SpreadSheetView is created to display the result instead of displayin…

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## [Have your work highlighted by Kitware at Supercomputing 2026!](https://discourse.paraview.org/t/have-your-work-highlighted-by-kitware-at-supercomputing-2026/17719)

<div class="topic-metadata">

**Author:** [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)\
**Replies:** 0\
**Last updated:** [September 10, 2026, 5:31pm UTC](https://discourse.paraview.org/t/have-your-work-highlighted-by-kitware-at-supercomputing-2026/17719 "2026-09-10T17:31:15Z")

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Kitware wants to promote your work at Supercomputing 2026! Kitware would like to show your compelling images, videos, and entire applications enabled by ParaView at our booth at this year’s Supercomputing conference. For…

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## [ParaView Office Hours February 19, 2026](https://discourse.paraview.org/t/paraview-office-hours-february-19-2026/17445)

<div class="topic-metadata">

**Author:** [@Bob\_Obara](https://discourse.paraview.org/u/Bob_Obara)\
**Replies:** 0\
**Last updated:** [February 16, 2026, 7:48pm UTC](https://discourse.paraview.org/t/paraview-office-hours-february-19-2026/17445 "2026-02-16T19:48:42Z")

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Have a question about how to use ParaView? Ask ParaView experts at this week’s office hours! Time: Thursday, February 19 · 3:30 – 5:00pm Time zone: America/New\_York Google Meet joining info Video call link: https://me…

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## [Need help in plotting velocity feilds for a 3d figure](https://discourse.paraview.org/t/need-help-in-plotting-velocity-feilds-for-a-3d-figure/13884)

<div class="topic-metadata">

**Author:** [@Stayal](https://discourse.paraview.org/u/Stayal)\
**Replies:** 0\
**Last updated:** [February 7, 2024, 8:06pm UTC](https://discourse.paraview.org/t/need-help-in-plotting-velocity-feilds-for-a-3d-figure/13884 "2024-02-07T20:06:21Z")

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velocity\_noslip.pvd (177 Bytes) Hello I want to plot these 3d velocity fields in 2d plane in paraview. I didn’t know how to plot velocity fields for a 3d figure. Please help me in this regard. I want also want to zo…

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## [Selecting a cells connected to axis (line)](https://discourse.paraview.org/t/selecting-a-cells-connected-to-axis-line/12988)

<div class="topic-metadata">

**Author:** [@h1773](https://discourse.paraview.org/u/h1773)\
**Replies:** 0\
**Last updated:** [October 5, 2023, 9:52am UTC](https://discourse.paraview.org/t/selecting-a-cells-connected-to-axis-line/12988 "2023-10-05T09:52:21Z")

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Hello, I want extract the cells which are connected to the axis (Or line you can say) I do not know the workflow to do that, It will be very helpful if anyone can give a comment. Thanks.

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## [adding ADIOS and run-time crash of ParaView master](https://discourse.paraview.org/t/adding-adios-and-run-time-crash-of-paraview-master/17304)

<div class="topic-metadata">

**Author:** [@jfavre](https://discourse.paraview.org/u/jfavre)\
**Replies:** 3\
**Last updated:** [November 13, 2025, 7:11am UTC](https://discourse.paraview.org/t/adding-adios-and-run-time-crash-of-paraview-master/17304 "2025-11-13T07:11:38Z")

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I compile all my dependencies with spack. When starting ParaView, it core-dumps. WARNING: All log messages before absl::InitializeLog() is called are written to STDERR E0000 00:00:1762967088.891296 88826 descriptor\_…

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## [Paraview for processing fatigue using API](https://discourse.paraview.org/t/paraview-for-processing-fatigue-using-api/16416)

<div class="topic-metadata">

**Author:** [@Mishal](https://discourse.paraview.org/u/Mishal)\
**Replies:** 3\
**Last updated:** [April 3, 2025, 2:59pm UTC](https://discourse.paraview.org/t/paraview-for-processing-fatigue-using-api/16416 "2025-04-03T14:59:41Z")

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Hi Guys Just asking the question before I go down a rabbit hole and find find out that it is not entirely possible. We have a structural engineering software which can create an export to Paraview consisting of a .vtm …

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## [Export vtk in ascii](https://discourse.paraview.org/t/export-vtk-in-ascii/15432)

<div class="topic-metadata">

**Author:** [@lydie](https://discourse.paraview.org/u/lydie)\
**Replies:** 3\
**Last updated:** [September 26, 2024, 9:34am UTC](https://discourse.paraview.org/t/export-vtk-in-ascii/15432 "2024-09-26T09:34:41Z")

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Is it possible to export 3D vtk model directly in ascii (X Y Z scalar) to visualize in other softwares? csv has note the same number of data from points to field data

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## [Problem with netcdf files where x,y have the same dimension](https://discourse.paraview.org/t/problem-with-netcdf-files-where-x-y-have-the-same-dimension/15421)

<div class="topic-metadata">

**Author:** [@Venke](https://discourse.paraview.org/u/Venke)\
**Replies:** 3\
**Last updated:** [September 24, 2024, 6:41am UTC](https://discourse.paraview.org/t/problem-with-netcdf-files-where-x-y-have-the-same-dimension/15421 "2024-09-24T06:41:56Z")

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Hej, I have a problem visualising netcdf grids where the coordinate vectors have the same lengths.The file is loaded with the NetCDFReader. When I annotate the coordinates with Data Axes Grid the x-coordinates are equal…

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## [3D Lasso on volume](https://discourse.paraview.org/t/3d-lasso-on-volume/11454)

<div class="topic-metadata">

**Author:** [@andreahmed](https://discourse.paraview.org/u/andreahmed)\
**Replies:** 0\
**Last updated:** [February 21, 2023, 12:03am UTC](https://discourse.paraview.org/t/3d-lasso-on-volume/11454 "2023-02-21T00:03:01Z")

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Hello, I’m looking for an algorithm or an example for a 3D Lasso on 3D Volume. I was looking for VtkVolumePicker class, but in the example there is no volume that is input into that class, all I see is picker.Pick(x,y,…

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## [surface LIC unsteady problems](https://discourse.paraview.org/t/surface-lic-unsteady-problems/11448)

<div class="topic-metadata">

**Author:** [@dleon](https://discourse.paraview.org/u/dleon)\
**Replies:** 0\
**Last updated:** [February 20, 2023, 12:45pm UTC](https://discourse.paraview.org/t/surface-lic-unsteady-problems/11448 "2023-02-20T12:45:19Z")

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Hi, I am using surface LIC to visualize the streamlines of the fluid in an unsteady problem, and I am wondering if that is correct or if surface LIC represent the streamlines only at steady conditions… Is it ok use sur…

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## [When using mpirun, how to enable every process binding one GPU](https://discourse.paraview.org/t/when-using-mpirun-how-to-enable-every-process-binding-one-gpu/16877)

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**Author:** [@mahb](https://discourse.paraview.org/u/mahb)\
**Replies:** 2\
**Last updated:** [June 30, 2025, 8:02am UTC](https://discourse.paraview.org/t/when-using-mpirun-how-to-enable-every-process-binding-one-gpu/16877 "2025-06-30T08:02:34Z")

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I have one DGX A100, when I use “mpirun -np 4 pvserver”, I find only one GPU card work. How to configure more GPU card to work?

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## [Default view direction](https://discourse.paraview.org/t/default-view-direction/16375)

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**Author:** [@jeDuck](https://discourse.paraview.org/u/jeDuck)\
**Replies:** 2\
**Last updated:** [March 26, 2025, 7:40am UTC](https://discourse.paraview.org/t/default-view-direction/16375 "2025-03-26T07:40:51Z")

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Currently when one launches Paraview, the camera orientation is set to +X. I would like to have isometric view as default in my application. How can I do that? I tried to set default\_values for CameraFocalPoint property …

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## [The pqEventDispatcher.h file cannot be found in the source code project](https://discourse.paraview.org/t/the-pqeventdispatcher-h-file-cannot-be-found-in-the-source-code-project/13673)

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**Author:** [@yuntianming](https://discourse.paraview.org/u/yuntianming)\
**Replies:** 2\
**Last updated:** [January 11, 2024, 11:57am UTC](https://discourse.paraview.org/t/the-pqeventdispatcher-h-file-cannot-be-found-in-the-source-code-project/13673 "2024-01-11T11:57:02Z")

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I’m studying the source code of paraview recently, and I cloned the latest code from GitHub. In the process of reading the source code, I found that I could not find the pqEventDispatcher.h file, and of course I could no…

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## [Linking animation frames to time series data (hdf5, numpy) in Python reader plugin](https://discourse.paraview.org/t/linking-animation-frames-to-time-series-data-hdf5-numpy-in-python-reader-plugin/16337)

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**Author:** [@rbrooksher](https://discourse.paraview.org/u/rbrooksher)\
**Replies:** 1\
**Last updated:** [March 15, 2025, 1:48pm UTC](https://discourse.paraview.org/t/linking-animation-frames-to-time-series-data-hdf5-numpy-in-python-reader-plugin/16337 "2025-03-15T13:48:12Z")

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Hello, I have been attempting to create a reader plugin for my hdf5 dataset. The problem I am facing is that animation frames are consistently showing as the default, 10 steps between 1 and 10 inclusive. Is this expecte…

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## [Adding polyData block from vtp elements to vtkMultiBlockDataSet](https://discourse.paraview.org/t/adding-polydata-block-from-vtp-elements-to-vtkmultiblockdataset/14621)

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**Author:** [@Reptider](https://discourse.paraview.org/u/Reptider)\
**Replies:** 1\
**Last updated:** [May 16, 2024, 8:21am UTC](https://discourse.paraview.org/t/adding-polydata-block-from-vtp-elements-to-vtkmultiblockdataset/14621 "2024-05-16T08:21:05Z")

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Hello. I am using python with the vtk library. I need to add to vtkMultiBlockDataSet a block consisting of at least one separate polyData (vtp) element. And then I want to write the result using the vtkXMLMultiBlockDataW…

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## [Tag 6.1.0 release for kitware/paraview\_org-plugin-devel](https://discourse.paraview.org/t/tag-6-1-0-release-for-kitware-paraview-org-plugin-devel/17523)

<div class="topic-metadata">

**Author:** [@sherin.sugathan](https://discourse.paraview.org/u/sherin.sugathan)\
**Replies:** 5\
**Last updated:** [April 16, 2026, 12:29pm UTC](https://discourse.paraview.org/t/tag-6-1-0-release-for-kitware-paraview-org-plugin-devel/17523 "2026-04-16T12:29:45Z")

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Since the release of PV 6.1.0, I have been checking https://hub.docker.com/r/kitware/paraview\_org-plugin-devel/tags , but I dont see a 6.1.0 tag getting released yet. I was under the impression that the docker image woul…

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## [PHyperTreeGrid](https://discourse.paraview.org/t/phypertreegrid/16605)

<div class="topic-metadata">

**Author:** [@colive](https://discourse.paraview.org/u/colive)\
**Replies:** 5\
**Last updated:** [May 12, 2025, 10:37am UTC](https://discourse.paraview.org/t/phypertreegrid/16605 "2025-05-12T10:37:37Z")

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Hi, I would consider myself familiar with the XML file format for HyperTreeGrids at this point. I also started looking into PHTG format which seems to work quite well, except when I include any fields. For example, \<V…

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## [help with understand of median filter and 3D scan treatment in general](https://discourse.paraview.org/t/help-with-understand-of-median-filter-and-3d-scan-treatment-in-general/17248)

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**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 4\
**Last updated:** [October 27, 2025, 8:06am UTC](https://discourse.paraview.org/t/help-with-understand-of-median-filter-and-3d-scan-treatment-in-general/17248 "2025-10-27T08:06:26Z")

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hello, I have a tiff image of a 3D scan that i am trying to use paraview for the extraction of surfaces meshes. currently, i have the data with a space of 1 length voxel, i wanted to sub divide each voxel by a factor (…

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## [What filter for a lattice structure](https://discourse.paraview.org/t/what-filter-for-a-lattice-structure/17260)

<div class="topic-metadata">

**Author:** [@kaengo](https://discourse.paraview.org/u/kaengo)\
**Replies:** 4\
**Last updated:** [October 24, 2025, 12:32pm UTC](https://discourse.paraview.org/t/what-filter-for-a-lattice-structure/17260 "2025-10-24T12:32:27Z")

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Hello to all I have a csv, which contains data of a lattice structure. Every line of my csv is one rod of my lattice structure. The 2nd to 7th columns show the coordinates of the rod (x1,y1,z1,x2,y2,z2) . The followin…

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## [Macro to extract all leaf nodes of a multiblock dataset](https://discourse.paraview.org/t/macro-to-extract-all-leaf-nodes-of-a-multiblock-dataset/15443)

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**Author:** [@boonth](https://discourse.paraview.org/u/boonth)\
**Replies:** 2\
**Last updated:** [January 28, 2025, 10:15pm UTC](https://discourse.paraview.org/t/macro-to-extract-all-leaf-nodes-of-a-multiblock-dataset/15443 "2025-01-28T22:15:06Z")

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Hi, I would like to write a macro in which given an arbitrary multiblock dataset, apply Extract Blocks to every leaf block in that dataset. @cory.quammen @spyridon97

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## [Open grd fiel by Paraview](https://discourse.paraview.org/t/open-grd-fiel-by-paraview/15712)

<div class="topic-metadata">

**Author:** [@Nemo](https://discourse.paraview.org/u/Nemo)\
**Replies:** 1\
**Last updated:** [November 12, 2024, 8:58am UTC](https://discourse.paraview.org/t/open-grd-fiel-by-paraview/15712 "2024-11-12T08:58:47Z")

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I have a .grd file and would like to visualize it in ParaView. To do this, should I first convert the file to .vtk format before visualization? Is there a way to visualize it directly in ParaView without conversion? The…

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## [MP4 export fails when output path contains non-ASCII characters (e.g. Japanese)](https://discourse.paraview.org/t/mp4-export-fails-when-output-path-contains-non-ascii-characters-e-g-japanese/17357)

<div class="topic-metadata">

**Author:** [@Japan\_OpenDEM](https://discourse.paraview.org/u/Japan_OpenDEM)\
**Replies:** 3\
**Last updated:** [December 10, 2025, 8:14am UTC](https://discourse.paraview.org/t/mp4-export-fails-when-output-path-contains-non-ascii-characters-e-g-japanese/17357 "2025-12-10T08:14:18Z")

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When exporting an MP4 video, ParaView cannot correctly generate the file if the output path contains non-ASCII characters (e.g., Japanese).

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## [VTK polyhedra not rendering in XML format](https://discourse.paraview.org/t/vtk-polyhedra-not-rendering-in-xml-format/16379)

<div class="topic-metadata">

**Author:** [@Kbhansson](https://discourse.paraview.org/u/Kbhansson)\
**Replies:** 3\
**Last updated:** [March 26, 2025, 8:14am UTC](https://discourse.paraview.org/t/vtk-polyhedra-not-rendering-in-xml-format/16379 "2025-03-26T08:14:52Z")

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I’ve been trying to reproduce the example polyhedral cell from here: https://examples.vtk.org/site/Python/GeometricObjects/PolyhedronAndHexahedron/ Instead of rendering to screen I am dumping the scene to a .vtu file. …

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## [vtkRenderingOpenXRRemotingCxxTests](https://discourse.paraview.org/t/vtkrenderingopenxrremotingcxxtests/15229)

<div class="topic-metadata">

**Author:** [@simonmssu](https://discourse.paraview.org/u/simonmssu)\
**Replies:** 3\
**Last updated:** [August 14, 2024, 9:38pm UTC](https://discourse.paraview.org/t/vtkrenderingopenxrremotingcxxtests/15229 "2024-08-14T21:38:36Z")

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Just wanted to test out https://www.kitware.com/stream-vtk-to-the-hololens-2/ workflow on my ms hololens 2 but some key steps are missing from the blog. VTK::RenderingOpenXRRemoting - VTK documentation appears to have mo…

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