# ParaView Support

**URL:** https://discourse.paraview.org/c/paraview-support/7.md?page=25

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

**Page:** 26

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## [Center of mass , (center of data)](https://discourse.paraview.org/t/center-of-mass-center-of-data/1273)

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**Author:** [@drudox00](https://discourse.paraview.org/u/drudox00)\
**Replies:** 9\
**Last updated:** [January 10, 2025, 2:36pm UTC](https://discourse.paraview.org/t/center-of-mass-center-of-data/1273 "2025-01-10T14:36:22Z")

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Hi all , I have a set of 3d points that rapresent atoms in a macro molecule , the atoms mass is the same for each atoms in the molecule, there is a way in paraview to found the center of a certain number of point that r…

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## [How to convert the Block Number to attribute for each point？Thanks](https://discourse.paraview.org/t/how-to-convert-the-block-number-to-attribute-for-each-point-thanks/15962)

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**Author:** [@hdz19900725](https://discourse.paraview.org/u/hdz19900725)\
**Replies:** 8\
**Last updated:** [January 10, 2025, 8:48am UTC](https://discourse.paraview.org/t/how-to-convert-the-block-number-to-attribute-for-each-point-thanks/15962 "2025-01-10T08:48:51Z")

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## [Given a MultiPieceDataSet, know which vertex is for each piece](https://discourse.paraview.org/t/given-a-multipiecedataset-know-which-vertex-is-for-each-piece/11528)

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**Author:** [@Juan\_Jose\_Casafranca](https://discourse.paraview.org/u/Juan_Jose_Casafranca)\
**Replies:** 3\
**Last updated:** [January 10, 2025, 8:17am UTC](https://discourse.paraview.org/t/given-a-multipiecedataset-know-which-vertex-is-for-each-piece/11528 "2025-01-10T08:17:29Z")

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In paraview, given a vtkMultiBlockDataSet of vtkUnstructedGrid, it is possible to show to which block each vertex or cells belongs by two means. By using vtkBlockColors coloring in the viewports, or in the spreadsheet, t…

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## [perspectiveless view](https://discourse.paraview.org/t/perspectiveless-view/15961)

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**Author:** [@sinopec\_view\_help](https://discourse.paraview.org/u/sinopec_view_help)\
**Replies:** 1\
**Last updated:** [January 9, 2025, 9:39pm UTC](https://discourse.paraview.org/t/perspectiveless-view/15961 "2025-01-09T21:39:26Z")

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Perspective view is used in the current version of Paraview. I am looking for a perspective view so the features will not change (size) along the depth direction. I am wondering where I can find this function.

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

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

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

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## [replacing timestep z axis tick marks with dates](https://discourse.paraview.org/t/replacing-timestep-z-axis-tick-marks-with-dates/15957)

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**Author:** [@Devin\_Richard\_Bayly](https://discourse.paraview.org/u/Devin_Richard_Bayly)\
**Replies:** 2\
**Last updated:** [January 8, 2025, 8:29pm UTC](https://discourse.paraview.org/t/replacing-timestep-z-axis-tick-marks-with-dates/15957 "2025-01-08T20:29:42Z")

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Hi there, I’m trying to help a researcher replace the timesteps on their z axis with specific dates, what is the easiest way to do this in paraview? I saw some mention from here Paraview Time Formatting that hinted …

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## [OOM with multinode pvserver, no shared memory?](https://discourse.paraview.org/t/oom-with-multinode-pvserver-no-shared-memory/15953)

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**Author:** [@Devin\_Richard\_Bayly](https://discourse.paraview.org/u/Devin_Richard_Bayly)\
**Replies:** 11\
**Last updated:** [January 8, 2025, 8:28pm UTC](https://discourse.paraview.org/t/oom-with-multinode-pvserver-no-shared-memory/15953 "2025-01-08T20:28:35Z")

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When we run pvserver in parallel using mpi, does the memory of each node get shared? I have a 2 node allocation on my HPC where each node is able to support 64GB of memory and has 16 cores + 1 p100 gpu, but I’ve found t…

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## [Nvidia Index and NetCDF data in spherical projection: Index renders above other elements that should be in front](https://discourse.paraview.org/t/nvidia-index-and-netcdf-data-in-spherical-projection-index-renders-above-other-elements-that-should-be-in-front/15426)

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**Author:** [@Michael\_Boettinger](https://discourse.paraview.org/u/Michael_Boettinger)\
**Replies:** 7\
**Last updated:** [January 8, 2025, 5:55pm UTC](https://discourse.paraview.org/t/nvidia-index-and-netcdf-data-in-spherical-projection-index-renders-above-other-elements-that-should-be-in-front/15426 "2025-01-08T17:55:47Z")

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My goal is to volume render 3d data of a regional atmophere model wrapped around the globe. The network is relatively simple: 0.) As a replacement for the Earth I take a Sphere module and shade it green. Radius = 63500 …

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## [Threading in a ParaView Python plugin (Linux)](https://discourse.paraview.org/t/threading-in-a-paraview-python-plugin-linux/15888)

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**Author:** [@enricsosa](https://discourse.paraview.org/u/enricsosa)\
**Replies:** 2\
**Last updated:** [January 8, 2025, 1:14pm UTC](https://discourse.paraview.org/t/threading-in-a-paraview-python-plugin-linux/15888 "2025-01-08T13:14:14Z")

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Hello, I was trying to use the threading library in a python plugin, but it doesn’t work exactly as I want it to. What I want is to create a thread that is always running continuously in the background, but currently I…

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## [stream tracers not loading and tool tips not showing](https://discourse.paraview.org/t/stream-tracers-not-loading-and-tool-tips-not-showing/14665)

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**Author:** [@Lt72884](https://discourse.paraview.org/u/Lt72884)\
**Replies:** 39\
**Last updated:** [January 8, 2025, 12:00pm UTC](https://discourse.paraview.org/t/stream-tracers-not-loading-and-tool-tips-not-showing/14665 "2025-01-08T12:00:19Z")

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Ok, now that i have a somewhat working mesh and a completed CFD. I am trying to use paraview but it feels like all the things i try from the tutorials on youtube are not wanting to either load or work. IE stream tracers.…

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## [control "axes grid" properties using python script](https://discourse.paraview.org/t/control-axes-grid-properties-using-python-script/15879)

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**Author:** [@Chen\_Huang](https://discourse.paraview.org/u/Chen_Huang)\
**Replies:** 2\
**Last updated:** [January 8, 2025, 11:58am UTC](https://discourse.paraview.org/t/control-axes-grid-properties-using-python-script/15879 "2025-01-08T11:58:53Z")

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Hi, I want to modify “axes grid” properties using python script. It seems that some scripts are working, but some are not working. For example: the following is working: \>\>\> renderView = GetActiveView() \>\>\> axesGrid = …

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## [keep camera at same place when hiding all objects (stop reset camera to closest when hide everything)](https://discourse.paraview.org/t/keep-camera-at-same-place-when-hiding-all-objects-stop-reset-camera-to-closest-when-hide-everything/15955)

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**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 5\
**Last updated:** [January 7, 2025, 2:01pm UTC](https://discourse.paraview.org/t/keep-camera-at-same-place-when-hiding-all-objects-stop-reset-camera-to-closest-when-hide-everything/15955 "2025-01-07T14:01:55Z")

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Hello, I am facing a annoying behavior that would love to be modify for future releases of paraview. I am comparing two different meshes of same object with different refinements. so my idea is to have exactly the sam…

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## [Glyph on streamlines (not animation view)](https://discourse.paraview.org/t/glyph-on-streamlines-not-animation-view/15911)

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**Author:** [@newang](https://discourse.paraview.org/u/newang)\
**Replies:** 3\
**Last updated:** [January 7, 2025, 1:48pm UTC](https://discourse.paraview.org/t/glyph-on-streamlines-not-animation-view/15911 "2025-01-07T13:48:03Z")

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Hi, I would like to let the Glyph1 move along “V”(vector variable)（or the StreamTracer1）, similar to the particle effect of the StreamLinesRepresentation plugin of Paraview, with the difference being that the arrow is mo…

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## [Streamlines with max integration time](https://discourse.paraview.org/t/streamlines-with-max-integration-time/15948)

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**Author:** [@giorgianig](https://discourse.paraview.org/u/giorgianig)\
**Replies:** 7\
**Last updated:** [January 7, 2025, 1:15pm UTC](https://discourse.paraview.org/t/streamlines-with-max-integration-time/15948 "2025-01-07T13:15:28Z")

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I would like to display streamlines with a fixed maximum integration time. Is that possible? Thanks in advance.

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## [Paraview OpenGL RenderWindow Crash on start](https://discourse.paraview.org/t/paraview-opengl-renderwindow-crash-on-start/15951)

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**Author:** [@MoonBridge](https://discourse.paraview.org/u/MoonBridge)\
**Replies:** 2\
**Last updated:** [January 6, 2025, 1:19pm UTC](https://discourse.paraview.org/t/paraview-opengl-renderwindow-crash-on-start/15951 "2025-01-06T13:19:45Z")

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Hey, I have been using OpenFOAM 11 with paraview but had to downgrade to ver. 10 due to work related issues. Since doing this paraview does not start up anymore. I tried reinstalling paraview in itself but it doesn’t se…

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## [Issue with camera angle](https://discourse.paraview.org/t/issue-with-camera-angle/15857)

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**Author:** [@EP12345](https://discourse.paraview.org/u/EP12345)\
**Replies:** 7\
**Last updated:** [January 6, 2025, 12:15pm UTC](https://discourse.paraview.org/t/issue-with-camera-angle/15857 "2025-01-06T12:15:44Z")

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I’m experiencing a bug where the camera angle is resetting to a default value inbetween object modifications (I’m taking a slice), and image rendering. has anyone experienced a similar issue/ has a fix?

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## [some points only seen in PointGaussian and 3DGlyphs but not in other representations](https://discourse.paraview.org/t/some-points-only-seen-in-pointgaussian-and-3dglyphs-but-not-in-other-representations/15943)

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**Author:** [@fromagebleu](https://discourse.paraview.org/u/fromagebleu)\
**Replies:** 1\
**Last updated:** [January 6, 2025, 8:56am UTC](https://discourse.paraview.org/t/some-points-only-seen-in-pointgaussian-and-3dglyphs-but-not-in-other-representations/15943 "2025-01-06T08:56:13Z")

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Hello Community! I am new to PV and was trying to render a vtk file, and was wondering why I can not see some of points in representations that are not point gaussians and 3dGlyphs… any help? here’s the file I …

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## [Can someone please help me? How can I visualize FlowSquare datasets using Paraview?](https://discourse.paraview.org/t/can-someone-please-help-me-how-can-i-visualize-flowsquare-datasets-using-paraview/15946)

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**Author:** [@ST.Sekkei](https://discourse.paraview.org/u/ST.Sekkei)\
**Replies:** 1\
**Last updated:** [January 6, 2025, 8:46am UTC](https://discourse.paraview.org/t/can-someone-please-help-me-how-can-i-visualize-flowsquare-datasets-using-paraview/15946 "2025-01-06T08:46:41Z")

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Hi everyone, Could anyone please give me some advice on how to visualize Flowsquare datasets using Paraview? I am using a simulation software called Flowsquare and somehow I managed to visualize the result using Paravi…

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## [Trouble Using Interact() Method](https://discourse.paraview.org/t/trouble-using-interact-method/15902)

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**Author:** [@Brian\_Hagewiesche](https://discourse.paraview.org/u/Brian_Hagewiesche)\
**Replies:** 3\
**Last updated:** [January 3, 2025, 8:43am UTC](https://discourse.paraview.org/t/trouble-using-interact-method/15902 "2025-01-03T08:43:30Z")

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I am currently working on a python script to perform some operations as a macro. For part of it I want the user to define a cutting plane visually, as in be able to move around the plane the way you might be able to do s…

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## [how to study the code of paraview ?](https://discourse.paraview.org/t/how-to-study-the-code-of-paraview/4559)

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**Author:** [@lin](https://discourse.paraview.org/u/lin)\
**Replies:** 11\
**Last updated:** [January 3, 2025, 8:42am UTC](https://discourse.paraview.org/t/how-to-study-the-code-of-paraview/4559 "2025-01-03T08:42:53Z")

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I want to know more about paraview, I want to study the code, so, have any suggestions or document ? Thank you.

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## [3Dconnexion mouse does not zoom/pan in parallel projection](https://discourse.paraview.org/t/3dconnexion-mouse-does-not-zoom-pan-in-parallel-projection/15936)

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**Author:** [@austin.kolegraff](https://discourse.paraview.org/u/austin.kolegraff)\
**Replies:** 0\
**Last updated:** [January 2, 2025, 6:49pm UTC](https://discourse.paraview.org/t/3dconnexion-mouse-does-not-zoom-pan-in-parallel-projection/15936 "2025-01-02T18:49:12Z")

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When in parallel projection mode, I am unable to zoom or pan with my 3Dconnexion SpaceMouse. (The rotation feature still works interestingly enough). All features work as expected when using the default perspective mode…

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## [Saving line profiles](https://discourse.paraview.org/t/saving-line-profiles/15934)

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**Author:** [@s\_edelgar](https://discourse.paraview.org/u/s_edelgar)\
**Replies:** 1\
**Last updated:** [January 2, 2025, 6:44pm UTC](https://discourse.paraview.org/t/saving-line-profiles/15934 "2025-01-02T18:44:50Z")

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Hi - I want to save the data from a x-line profile for a given quantity so I can plot it using another package. When I use "File → save data - it saves dat for all variables - not just the x location values and the quan…

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## [Clear Memory](https://discourse.paraview.org/t/clear-memory/15920)

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**Author:** [@lucas.lanham](https://discourse.paraview.org/u/lucas.lanham)\
**Replies:** 3\
**Last updated:** [December 30, 2024, 4:26pm UTC](https://discourse.paraview.org/t/clear-memory/15920 "2024-12-30T16:26:43Z")

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How do I clear memory from ParaView? I recently removed a file but it did not change the amount of available memory.

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## [Having trouble saving videos](https://discourse.paraview.org/t/having-trouble-saving-videos/15915)

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**Author:** [@lucas.lanham](https://discourse.paraview.org/u/lucas.lanham)\
**Replies:** 2\
**Last updated:** [December 30, 2024, 3:54pm UTC](https://discourse.paraview.org/t/having-trouble-saving-videos/15915 "2024-12-30T15:54:33Z")

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Hey there, Each time I try and save a video, it saves the file but the saved video runs only for 1 second. I’ve set it to run for 10 seconds though. Anyone having similar issues? Thank you!

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## [Reading in Velocity Data in a Legacy VTK File](https://discourse.paraview.org/t/reading-in-velocity-data-in-a-legacy-vtk-file/2202)

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**Author:** [@Raychel\_Bahnick](https://discourse.paraview.org/u/Raychel_Bahnick)\
**Replies:** 4\
**Last updated:** [December 30, 2024, 2:51pm UTC](https://discourse.paraview.org/t/reading-in-velocity-data-in-a-legacy-vtk-file/2202 "2024-12-30T14:51:52Z")

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I am opening legacy vtk files into Paraview. There are x, y, and z coordinates and I am interested in attaching a x-velocity value to each of the points. How do I incorporate this velocity data into my vtk files in such …

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## [How can I visualize a mesh data?](https://discourse.paraview.org/t/how-can-i-visualize-a-mesh-data/15909)

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**Author:** [@Trijean](https://discourse.paraview.org/u/Trijean)\
**Replies:** 4\
**Last updated:** [December 30, 2024, 11:37am UTC](https://discourse.paraview.org/t/how-can-i-visualize-a-mesh-data/15909 "2024-12-30T11:37:39Z")

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Hi, I’m having problem to visualize a mesh data (car.stl) with streamline filter or streamline tracer (fluid flow) which I created it by using 3D Cad software. I managed to import it, but I can’t choose streamline filte…

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## [Unable to display 3D data in HDF5 format](https://discourse.paraview.org/t/unable-to-display-3d-data-in-hdf5-format/15913)

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**Author:** [@kentatonix](https://discourse.paraview.org/u/kentatonix)\
**Replies:** 1\
**Last updated:** [December 30, 2024, 10:55am UTC](https://discourse.paraview.org/t/unable-to-display-3d-data-in-hdf5-format/15913 "2024-12-30T10:55:26Z")

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sample\_3d\_data.h5 (978.6 KB) gene\_h5.py (1.6 KB) I cannot display 3D data in HDF5 format (sample\_3d\_data.h5) in paraview. This data was generated using the attached sample python program (sample\_3d\_data.h5). The error…

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## [Checking for errors in opening or updating PVD files](https://discourse.paraview.org/t/checking-for-errors-in-opening-or-updating-pvd-files/15877)

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**Author:** [@Christopher](https://discourse.paraview.org/u/Christopher)\
**Replies:** 5\
**Last updated:** [December 30, 2024, 9:17am UTC](https://discourse.paraview.org/t/checking-for-errors-in-opening-or-updating-pvd-files/15877 "2024-12-30T09:17:02Z")

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Hello all. I’m repeatedly checking for a PVD file change in some directory. The problem that I have is that sometimes the dependencies of the PVD file have not yet been prepared and because of this, the file won’t prop…

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## [Extract a surface from a block](https://discourse.paraview.org/t/extract-a-surface-from-a-block/15906)

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**Author:** [@Tony98](https://discourse.paraview.org/u/Tony98)\
**Replies:** 1\
**Last updated:** [December 30, 2024, 9:13am UTC](https://discourse.paraview.org/t/extract-a-surface-from-a-block/15906 "2024-12-30T09:13:03Z")

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Hi there, Happy holidays everybody. I would like to compute the wall shear stress for my simulation. The first step would be to extract the airfoil surface. I tried to replicate the instructions from a previous topic: C…

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## [The remote server's ParaviewWeb is inaccessible.](https://discourse.paraview.org/t/the-remote-servers-paraviewweb-is-inaccessible/15917)

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**Author:** [@tianyu.cocytus](https://discourse.paraview.org/u/tianyu.cocytus)\
**Replies:** 2\
**Last updated:** [December 29, 2024, 3:08am UTC](https://discourse.paraview.org/t/the-remote-servers-paraviewweb-is-inaccessible/15917 "2024-12-29T03:08:45Z")

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Hi I started a service on the remote server using the following command: /home/hty/paraview\_build/bin/pvpython --force-offscreen-rendering SimpleCone.py --venv /root/.environments/paraview --port 8081 --host 0.0.0.0 --…

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