# ParaView Support

**URL:** https://discourse.paraview.org/c/paraview-support/7.md?page=29

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**Page:** 30

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## [The variation of physical quantities with position](https://discourse.paraview.org/t/the-variation-of-physical-quantities-with-position/15676)

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**Author:** [@Guanlong](https://discourse.paraview.org/u/Guanlong)\
**Replies:** 1\
**Last updated:** [November 4, 2024, 11:19am UTC](https://discourse.paraview.org/t/the-variation-of-physical-quantities-with-position/15676 "2024-11-04T11:19:52Z")

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Hello, researchers. As shown in the figure, how can I obtain the variation of voidfraction on this section with the axial X position? Thank you very much.

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## [Scipy for pvpython in windows](https://discourse.paraview.org/t/scipy-for-pvpython-in-windows/15678)

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**Author:** [@Captain\_Convergence](https://discourse.paraview.org/u/Captain_Convergence)\
**Replies:** 2\
**Last updated:** [November 4, 2024, 9:14am UTC](https://discourse.paraview.org/t/scipy-for-pvpython-in-windows/15678 "2024-11-04T09:14:12Z")

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Dear support, I would like to use the library Scipy which is not available in paraview for windows. Would it be possible to install it? Thank you in advance for your time!

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## [How to export a model (from e.g., Blender) to a finite difference grid?](https://discourse.paraview.org/t/how-to-export-a-model-from-e-g-blender-to-a-finite-difference-grid/15669)

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**Author:** [@aritzy](https://discourse.paraview.org/u/aritzy)\
**Replies:** 3\
**Last updated:** [November 4, 2024, 8:39am UTC](https://discourse.paraview.org/t/how-to-export-a-model-from-e-g-blender-to-a-finite-difference-grid/15669 "2024-11-04T08:39:51Z")

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Hoping we can get some help on this. We want to do electromagnetic simulations and need a regular finite difference mesh to do so. We want to be able to export a model (from e.g., Blender) to a finite difference grid and…

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## [I cannot "save animation" in paraview 5.13.0](https://discourse.paraview.org/t/i-cannot-save-animation-in-paraview-5-13-0/15675)

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**Author:** [@live-long-and-prospe](https://discourse.paraview.org/u/live-long-and-prospe)\
**Replies:** 1\
**Last updated:** [November 1, 2024, 2:43pm UTC](https://discourse.paraview.org/t/i-cannot-save-animation-in-paraview-5-13-0/15675 "2024-11-01T14:43:41Z")

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I cannot export animation in paraview 5.12 and 5.13, but it works in version 5.11.

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## [Update to: Unable to render a StructuredGrid source using ProgrammableSource filter](https://discourse.paraview.org/t/update-to-unable-to-render-a-structuredgrid-source-using-programmablesource-filter/15663)

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**Author:** [@jmb64](https://discourse.paraview.org/u/jmb64)\
**Replies:** 6\
**Last updated:** [October 31, 2024, 2:45pm UTC](https://discourse.paraview.org/t/update-to-unable-to-render-a-structuredgrid-source-using-programmablesource-filter/15663 "2024-10-31T14:45:32Z")

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UPDATE: Thanks to Jean M. Favre suggestion in his 2019 post … Problem displaying Structured Grid when loading from Programmable Source “Problem displaying Structured Grid when loading from Programmable Source” Program…

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## [plotting data along curve](https://discourse.paraview.org/t/plotting-data-along-curve/15662)

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**Author:** [@dim14](https://discourse.paraview.org/u/dim14)\
**Replies:** 4\
**Last updated:** [October 31, 2024, 12:40pm UTC](https://discourse.paraview.org/t/plotting-data-along-curve/15662 "2024-10-31T12:40:12Z")

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Hello, I’d liked to plot magnitude velocity along a boundary curve. As shown on the attached picture, i’d liked to plot this data at the intersection between red surface and the fluid slice. i was thinking a filter as pl…

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## [PVD files and vtkhdf support](https://discourse.paraview.org/t/pvd-files-and-vtkhdf-support/15664)

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**Author:** [@jpmorr](https://discourse.paraview.org/u/jpmorr)\
**Replies:** 1\
**Last updated:** [October 31, 2024, 8:31am UTC](https://discourse.paraview.org/t/pvd-files-and-vtkhdf-support/15664 "2024-10-31T08:31:31Z")

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So I’ve slowly been putting together a workflow to use ParaView for visualising my simulation results and one of the final steps is to create an index file for easy opening of multiple meshes, however I’m having difficul…

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## [Obtain the variation of physical information on the cross-section with spatial position](https://discourse.paraview.org/t/obtain-the-variation-of-physical-information-on-the-cross-section-with-spatial-position/15668)

<div class="topic-metadata">

**Author:** [@Guanlong](https://discourse.paraview.org/u/Guanlong)\
**Replies:** 0\
**Last updated:** [October 31, 2024, 3:56am UTC](https://discourse.paraview.org/t/obtain-the-variation-of-physical-information-on-the-cross-section-with-spatial-position/15668 "2024-10-31T03:56:32Z")

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Hello, researchers. I have made a section, and now I want to obtain the average porosity variation at different axial positions on the section. The target result is shown in the following figure. How can I obtain similar…

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## [How to hide particles？](https://discourse.paraview.org/t/how-to-hide-particles/15660)

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**Author:** [@Guanlong](https://discourse.paraview.org/u/Guanlong)\
**Replies:** 2\
**Last updated:** [October 31, 2024, 2:11am UTC](https://discourse.paraview.org/t/how-to-hide-particles/15660 "2024-10-31T02:11:28Z")

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How are you, researchers. How can I hide the selected particles? For example, the particles within the rectangle shown in the figure below. I provided the VTK file of the particles. Please give the relevant operation pro…

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## [every time I reopen ParaView, all settings are reset to default](https://discourse.paraview.org/t/every-time-i-reopen-paraview-all-settings-are-reset-to-default/15666)

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**Author:** [@Yulongggggg](https://discourse.paraview.org/u/Yulongggggg)\
**Replies:** 0\
**Last updated:** [October 30, 2024, 11:59pm UTC](https://discourse.paraview.org/t/every-time-i-reopen-paraview-all-settings-are-reset-to-default/15666 "2024-10-30T23:59:58Z")

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I’m using macOS, and every time I reopen ParaView, all settings are reset to default. For example, if I set ‘auto apply’, it becomes inactive the next time I open ParaView, and I have to set it up again. How can I solve …

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## [Paraview and VTK support for moving mesh](https://discourse.paraview.org/t/paraview-and-vtk-support-for-moving-mesh/15634)

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**Author:** [@jpmorr](https://discourse.paraview.org/u/jpmorr)\
**Replies:** 4\
**Last updated:** [October 30, 2024, 9:52pm UTC](https://discourse.paraview.org/t/paraview-and-vtk-support-for-moving-mesh/15634 "2024-10-30T21:52:39Z")

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In my simulations I often have to display a 3D mesh (which could be PolyData or UnstructuredGrid depending on where it comes from) that is moving about the simulation domain, like a propeller blade in a CFD domain. In th…

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## [AttributeError: 'vtkPythonStdStreamCaptureHelper' object has no attribute 'fileno'](https://discourse.paraview.org/t/attributeerror-vtkpythonstdstreamcapturehelper-object-has-no-attribute-fileno/15614)

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**Author:** [@MengjiaoH](https://discourse.paraview.org/u/MengjiaoH)\
**Replies:** 5\
**Last updated:** [October 30, 2024, 6:55pm UTC](https://discourse.paraview.org/t/attributeerror-vtkpythonstdstreamcapturehelper-object-has-no-attribute-fileno/15614 "2024-10-30T18:55:43Z")

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I have a Python script that imports genericIO (hacc / GenericIO · GitLab) and uses its functions. The code runs successfully with standard Python, but I would like to incorporate functions from ParaView, which requires m…

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## [Finding Drag](https://discourse.paraview.org/t/finding-drag/15653)

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**Author:** [@Cyrus](https://discourse.paraview.org/u/Cyrus)\
**Replies:** 6\
**Last updated:** [October 30, 2024, 5:10pm UTC](https://discourse.paraview.org/t/finding-drag/15653 "2024-10-30T17:10:57Z")

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I am coming from Sim Scale. The people on their forum told me that Para View would be the best solution for my problem. I was wondering if there is a way to find what parts/areas of my car create the most drag. If anyone…

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## [Unable to render a StructuredGrid source using ProgrammableSource filter](https://discourse.paraview.org/t/unable-to-render-a-structuredgrid-source-using-programmablesource-filter/15659)

<div class="topic-metadata">

**Author:** [@jmb64](https://discourse.paraview.org/u/jmb64)\
**Replies:** 0\
**Last updated:** [October 29, 2024, 8:27pm UTC](https://discourse.paraview.org/t/unable-to-render-a-structuredgrid-source-using-programmablesource-filter/15659 "2024-10-29T20:27:07Z")

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As an exercise (being new to Paraview-VTK) I tried to use this piece of python code as a ProgrammableSource (Output Type set to StructuredGrid) in PARAVIEW 5.13. I am trying to model two concentric spherical surface (r…

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

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

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

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## [Error building plugin example](https://discourse.paraview.org/t/error-building-plugin-example/15643)

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**Author:** [@britesrei](https://discourse.paraview.org/u/britesrei)\
**Replies:** 6\
**Last updated:** [October 29, 2024, 8:08am UTC](https://discourse.paraview.org/t/error-building-plugin-example/15643 "2024-10-29T08:08:01Z")

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Hello! I’ve been trying to build ExampleContextMenu plugin from ParaView examples and it’s given me the error below that I do not know how to fix. I’m new to the developer side of ParaView so I would appreciate some det…

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## [Building ParaView with ANARI support](https://discourse.paraview.org/t/building-paraview-with-anari-support/15176)

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**Author:** [@simonmssu](https://discourse.paraview.org/u/simonmssu)\
**Replies:** 9\
**Last updated:** [October 28, 2024, 6:37pm UTC](https://discourse.paraview.org/t/building-paraview-with-anari-support/15176 "2024-10-28T18:37:46Z")

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We wanted to try out ANARI in ParaView. According to Jefferson Amstutz of the ANARI working group, Sankhesh Jhaveri had a merge request (https://gitlab.kitware.com/paraview/paraview/-/merge\_requests/6573) of ANARI in Par…

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## ["Generate Process Ids" doesn't work](https://discourse.paraview.org/t/generate-process-ids-doesnt-work/15639)

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**Author:** [@ANON1](https://discourse.paraview.org/u/ANON1)\
**Replies:** 4\
**Last updated:** [October 28, 2024, 7:57am UTC](https://discourse.paraview.org/t/generate-process-ids-doesnt-work/15639 "2024-10-28T07:57:07Z")

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Hello, I am using Paraview 5.12.0 in the client/server mode. (Client on Windows 11), and pvserver (running in parallel with 24 CPUs) on a Linux cluster. To confirm that pvserver is running in parallel I can color my da…

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## [Controlling Paraview GUI from Spyder (Python IDLE)](https://discourse.paraview.org/t/controlling-paraview-gui-from-spyder-python-idle/15638)

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**Author:** [@Captain\_Convergence](https://discourse.paraview.org/u/Captain_Convergence)\
**Replies:** 0\
**Last updated:** [October 25, 2024, 3:10pm UTC](https://discourse.paraview.org/t/controlling-paraview-gui-from-spyder-python-idle/15638 "2024-10-25T15:10:15Z")

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Dear all, I would like to use Spyder as my IDLE to debug python codes in ParaView. Is there any way to set spyder as IDLE in Windows? I’ve found a lot of material in Linux but in this case I need to use windows. Thank …

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## [Timestamp information not loaded from VTKHDF file](https://discourse.paraview.org/t/timestamp-information-not-loaded-from-vtkhdf-file/15487)

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**Author:** [@jpmorr](https://discourse.paraview.org/u/jpmorr)\
**Replies:** 12\
**Last updated:** [October 25, 2024, 11:23am UTC](https://discourse.paraview.org/t/timestamp-information-not-loaded-from-vtkhdf-file/15487 "2024-10-25T11:23:42Z")

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In the xml VTK files you could store timestamp information in the FieldData by including a DataArray with the name TimeValue, which is really important when reading a group of files and need to add the timestamp to any f…

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## [How to interpolate array data using gauss points (quadrature)](https://discourse.paraview.org/t/how-to-interpolate-array-data-using-gauss-points-quadrature/8867)

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**Author:** [@Sagues](https://discourse.paraview.org/u/Sagues)\
**Replies:** 13\
**Last updated:** [October 24, 2024, 7:38pm UTC](https://discourse.paraview.org/t/how-to-interpolate-array-data-using-gauss-points-quadrature/8867 "2024-10-24T19:38:06Z")

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I need to interpolate a result (stress) using gauss points. I understand that I should use Quadrature Scheme. I’ve created a quadrature definition: vtkNew gauss\_points\_triangle; gauss\_points\_triangle-\>Initialize(VTK\_…

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## [How to interpolate a 2D point cloud from .vtp with obstacles (like cylinders)?](https://discourse.paraview.org/t/how-to-interpolate-a-2d-point-cloud-from-vtp-with-obstacles-like-cylinders/11942)

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**Author:** [@Flatter](https://discourse.paraview.org/u/Flatter)\
**Replies:** 5\
**Last updated:** [October 24, 2024, 8:54am UTC](https://discourse.paraview.org/t/how-to-interpolate-a-2d-point-cloud-from-vtp-with-obstacles-like-cylinders/11942 "2024-10-24T08:54:20Z")

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Hi there, I’d like to interpolate the interior points of my domain that I receive after training a PINN. In my case, there is a flow around cylinders in 2D. I’ve used the Delaunay2D filter on my interior points, but wh…

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## [Red error box in paraview bar](https://discourse.paraview.org/t/red-error-box-in-paraview-bar/15624)

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**Author:** [@wem80](https://discourse.paraview.org/u/wem80)\
**Replies:** 1\
**Last updated:** [October 24, 2024, 7:51am UTC](https://discourse.paraview.org/t/red-error-box-in-paraview-bar/15624 "2024-10-24T07:51:28Z")

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Hi, I’m wondering what has caused this red box to turn up on my paraview screen. Looks like I am out of storage or something, how can I fix it? cheers Emma

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## [Issues Using Server GPU for Rendering with ParaView](https://discourse.paraview.org/t/issues-using-server-gpu-for-rendering-with-paraview/15619)

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**Author:** [@Sh\_K](https://discourse.paraview.org/u/Sh_K)\
**Replies:** 13\
**Last updated:** [October 24, 2024, 1:32am UTC](https://discourse.paraview.org/t/issues-using-server-gpu-for-rendering-with-paraview/15619 "2024-10-24T01:32:32Z")

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Hello, I am experiencing issues when attempting to use the server’s GPU for rendering while utilizing ParaView’s server functionality. 1. Goal: I am trying to use the server-side data and leverage the server’s GPU for…

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## [Streamlines - Isolines is not working with 2D ascii](https://discourse.paraview.org/t/streamlines-isolines-is-not-working-with-2d-ascii/15611)

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**Author:** [@ndariaso](https://discourse.paraview.org/u/ndariaso)\
**Replies:** 3\
**Last updated:** [October 23, 2024, 12:14pm UTC](https://discourse.paraview.org/t/streamlines-isolines-is-not-working-with-2d-ascii/15611 "2024-10-23T12:14:40Z")

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Hi Everyone, I am facing a problem that I couldn’t solve by myself or any support around internet. I have tried to draw isolines over a vector field but I cannot do it. I explain my process, I am missing something, but …

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## [volSymmTensorFields Magnitude](https://discourse.paraview.org/t/volsymmtensorfields-magnitude/15617)

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**Author:** [@Alimea](https://discourse.paraview.org/u/Alimea)\
**Replies:** 4\
**Last updated:** [October 23, 2024, 10:19am UTC](https://discourse.paraview.org/t/volsymmtensorfields-magnitude/15617 "2024-10-23T10:19:00Z")

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Hi I found that Paraview calculates a volSymmTensorFields Magnitude via the following relation: tau\_tot = (tau\_xx^2 + tau\_yy^2 + tau\_zz^2 + tau\_xy^2 + tau\_xz^2 + tau\_yz^2)^0.5 However, we know that the correct form of…

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## [What about post-processing of.silo files related to hdf5?](https://discourse.paraview.org/t/what-about-post-processing-of-silo-files-related-to-hdf5/15542)

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**Author:** [@Pox](https://discourse.paraview.org/u/Pox)\
**Replies:** 5\
**Last updated:** [October 23, 2024, 9:56am UTC](https://discourse.paraview.org/t/what-about-post-processing-of-silo-files-related-to-hdf5/15542 "2024-10-23T09:56:34Z")

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Hello everyone, I calculated the.silo file about hdf5 through an open source library and successfully opened it using paraview5.11. But the result is completely different from a.vtk file. I know how to use.VTK files, bu…

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## [Crash with std::bad\_array\_new\_length while loading large ensight gold case file](https://discourse.paraview.org/t/crash-with-std-bad-array-new-length-while-loading-large-ensight-gold-case-file/6631)

<div class="topic-metadata">

**Author:** [@flotus1](https://discourse.paraview.org/u/flotus1)\
**Replies:** 11\
**Last updated:** [October 23, 2024, 9:23am UTC](https://discourse.paraview.org/t/crash-with-std-bad-array-new-length-while-loading-large-ensight-gold-case-file/6631 "2024-10-23T09:23:41Z")

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My first time trying to open a rather large ensight gold case file (~400 million hexa8 elements, 100 time steps, 1 scalar, 1 3D vector) did not go so well. This is the first time I am having this issue, smaller cases (l…

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## [Changing the source foam file always loads all data](https://discourse.paraview.org/t/changing-the-source-foam-file-always-loads-all-data/15597)

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**Author:** [@fvg](https://discourse.paraview.org/u/fvg)\
**Replies:** 8\
**Last updated:** [October 22, 2024, 3:04pm UTC](https://discourse.paraview.org/t/changing-the-source-foam-file-always-loads-all-data/15597 "2024-10-22T15:04:39Z")

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If I load in a foam case file, I often only need to visualize the velocity, thus I only select that array. In my case this takes ±45 seconds to load. If I then modify the source file name to a different but very sim…

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## [Cannot get pvpython-real or pvserver-real from compiling and building from source](https://discourse.paraview.org/t/cannot-get-pvpython-real-or-pvserver-real-from-compiling-and-building-from-source/15605)

<div class="topic-metadata">

**Author:** [@tigerhu](https://discourse.paraview.org/u/tigerhu)\
**Replies:** 3\
**Last updated:** [October 22, 2024, 12:21pm UTC](https://discourse.paraview.org/t/cannot-get-pvpython-real-or-pvserver-real-from-compiling-and-building-from-source/15605 "2024-10-22T12:21:14Z")

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Hello, 【My Problem】 I would like to compile and build paraview from sourcecode on a linux headless machine. I have followed official link GithubParaviewBuildLink, and succeeded somehow. But when I compared mybuild wit…

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