# ParaView Support

**URL:** https://discourse.paraview.org/c/paraview-support/7.md?page=76

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**Page:** 77

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## [how to get mesh lines of uniform width?](https://discourse.paraview.org/t/how-to-get-mesh-lines-of-uniform-width/12107)

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**Author:** [@wwwwood](https://discourse.paraview.org/u/wwwwood)\
**Replies:** 2\
**Last updated:** [May 16, 2023, 7:00am UTC](https://discourse.paraview.org/t/how-to-get-mesh-lines-of-uniform-width/12107 "2023-05-16T07:00:47Z")

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the default mesh lines are not uniform width, like in picture above. how can i get lines of uniform width, like in picture below? I would appreciate your help, thanks!

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## [I want to assign the result of the calculation to the grid element,](https://discourse.paraview.org/t/i-want-to-assign-the-result-of-the-calculation-to-the-grid-element/12099)

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**Author:** [@ZhangMT](https://discourse.paraview.org/u/ZhangMT)\
**Replies:** 1\
**Last updated:** [May 16, 2023, 6:57am UTC](https://discourse.paraview.org/t/i-want-to-assign-the-result-of-the-calculation-to-the-grid-element/12099 "2023-05-16T06:57:08Z")

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I can assign the result of the calculation to the grid node and then generate a VTK file; However, I want to assign the result of the calculation to the grid element, but I don’t know how to do that. Asking for help. Tha…

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## [Client Data render server setup issue: rendering not working as intended](https://discourse.paraview.org/t/client-data-render-server-setup-issue-rendering-not-working-as-intended/12101)

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**Author:** [@Abhijeet\_Chodankar](https://discourse.paraview.org/u/Abhijeet_Chodankar)\
**Replies:** 0\
**Last updated:** [May 16, 2023, 1:04am UTC](https://discourse.paraview.org/t/client-data-render-server-setup-issue-rendering-not-working-as-intended/12101 "2023-05-16T01:04:57Z")

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I am trying to setup a client data render server setup. Having two seperate servers for data and rendering. however, an error shows up while viewing the volume ( 90.098s) \[pvrenderserver.0\] vtkPVRenderView.cxx:2043 …

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## [Stream tracer filter unavailable even with vector field data](https://discourse.paraview.org/t/stream-tracer-filter-unavailable-even-with-vector-field-data/12096)

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**Author:** [@path](https://discourse.paraview.org/u/path)\
**Replies:** 2\
**Last updated:** [May 16, 2023, 12:47am UTC](https://discourse.paraview.org/t/stream-tracer-filter-unavailable-even-with-vector-field-data/12096 "2023-05-16T00:47:53Z")

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Hello, I have a simple lid driven velocity field Exodus file with vel\_x and vel\_y point data variables. Paraview seems to recognize them as a vel vector with X and Y components and also provides the magnitude. However, s…

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## [velocities on Slice over polyline](https://discourse.paraview.org/t/velocities-on-slice-over-polyline/12100)

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**Author:** [@BillM](https://discourse.paraview.org/u/BillM)\
**Replies:** 0\
**Last updated:** [May 16, 2023, 12:45am UTC](https://discourse.paraview.org/t/velocities-on-slice-over-polyline/12100 "2023-05-16T00:45:37Z")

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Slice over polyline only returns two non-zero velocity components (Ux and Uy) when applied to my three-dimensional flow field computed with OpenFOAM. Ux is essentially normal to the slice, while Uy is one of the in-pla…

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## [Export Paraview 2d Transfer Function for use with vtk](https://discourse.paraview.org/t/export-paraview-2d-transfer-function-for-use-with-vtk/12093)

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**Author:** [@DMelenberg](https://discourse.paraview.org/u/DMelenberg)\
**Replies:** 0\
**Last updated:** [May 15, 2023, 2:49pm UTC](https://discourse.paraview.org/t/export-paraview-2d-transfer-function-for-use-with-vtk/12093 "2023-05-15T14:49:02Z")

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Hello all! Can someone help me to save my 2D transfer function? In the image below you can see that the button is not available. What I did so far: loading of vtk volume data representation as volume editing of colo…

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## [Unrecongnized keyword in vtk file](https://discourse.paraview.org/t/unrecongnized-keyword-in-vtk-file/8776)

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**Author:** [@Ziliang](https://discourse.paraview.org/u/Ziliang)\
**Replies:** 14\
**Last updated:** [May 15, 2023, 1:52pm UTC](https://discourse.paraview.org/t/unrecongnized-keyword-in-vtk-file/8776 "2023-05-15T13:52:20Z")

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Dear ParaView support, I am trying to visualize a vtk file, but it gave me an ‘Unrecongnized keyword’ error. The full message is ERROR: In /opt/glr/paraview/paraview-ci/build/superbuild/paraview/src/VTK/IO/Legacy/vtkUn…

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## [How to reset coordinates in Paraview](https://discourse.paraview.org/t/how-to-reset-coordinates-in-paraview/12072)

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**Author:** [@ShenY](https://discourse.paraview.org/u/ShenY)\
**Replies:** 14\
**Last updated:** [May 15, 2023, 11:08am UTC](https://discourse.paraview.org/t/how-to-reset-coordinates-in-paraview/12072 "2023-05-15T11:08:51Z")

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Paraview 5.8.0 I set the display of axes grid in my case, but the output result is not very satisfactory. I want to reset the coordinates to the boundary intersection point. May I ask how I can achieve it? Or what metho…

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## [How collapsing a window works](https://discourse.paraview.org/t/how-collapsing-a-window-works/12090)

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**Author:** [@Andreea\_Stan](https://discourse.paraview.org/u/Andreea_Stan)\
**Replies:** 0\
**Last updated:** [May 15, 2023, 10:34am UTC](https://discourse.paraview.org/t/how-collapsing-a-window-works/12090 "2023-05-15T10:34:42Z")

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Hello everyone, I am interested in how the process of collapsing different windows works on Windows, since I have a Mac. On Mac, once the collapse icon in the top right corner is clicked, the window becomes floating and …

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## [Error with loading .vtu](https://discourse.paraview.org/t/error-with-loading-vtu/12081)

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**Author:** [@Yizhuo](https://discourse.paraview.org/u/Yizhuo)\
**Replies:** 5\
**Last updated:** [May 15, 2023, 8:45am UTC](https://discourse.paraview.org/t/error-with-loading-vtu/12081 "2023-05-15T08:45:12Z")

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Hi, I am a new in Paraview. I have tried to open a .vtu file with this errors: ERROR: In vtkXMLParser.cxx, line 379 vtkXMLDataParser (000002BC339E1540): Error parsing XML in stream at line 70, column 11, byte index -18…

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## [pvserver or pvpython in docker cannot use GPU](https://discourse.paraview.org/t/pvserver-or-pvpython-in-docker-cannot-use-gpu/12030)

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**Author:** [@bjdaijun](https://discourse.paraview.org/u/bjdaijun)\
**Replies:** 9\
**Last updated:** [May 14, 2023, 7:17am UTC](https://discourse.paraview.org/t/pvserver-or-pvpython-in-docker-cannot-use-gpu/12030 "2023-05-14T07:17:14Z")

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I download headless version of paraview, and build it into docker. My host machine installed nvidia driver properly, and configured navidia-docker2 successfully. And I Use nvidia/cuda:11.7.1-cudnn8-devel-ubuntu22.04 as…

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## [Difficulties to use PropertyGroup in python plugin of a filter](https://discourse.paraview.org/t/difficulties-to-use-propertygroup-in-python-plugin-of-a-filter/12070)

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**Author:** [@AlexFrost](https://discourse.paraview.org/u/AlexFrost)\
**Replies:** 3\
**Last updated:** [May 12, 2023, 1:45pm UTC](https://discourse.paraview.org/t/difficulties-to-use-propertygroup-in-python-plugin-of-a-filter/12070 "2023-05-12T13:45:09Z")

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Hello Paraview team. I am trying to write a python plugin which creates a filter to plot data in a customized way. To do that, I used the paraview.util.vtkAlgorithm after looking at PythonAlgorithmExamples.py and the pl…

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## [Visualizing an image in a stack with the threshold filter](https://discourse.paraview.org/t/visualizing-an-image-in-a-stack-with-the-threshold-filter/12079)

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**Author:** [@rdeyhle](https://discourse.paraview.org/u/rdeyhle)\
**Replies:** 0\
**Last updated:** [May 12, 2023, 1:27pm UTC](https://discourse.paraview.org/t/visualizing-an-image-in-a-stack-with-the-threshold-filter/12079 "2023-05-12T13:27:38Z")

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If you have a stack of images, let us say 1 to 100. By using the threshold filter, is it possible to visualize the middle image, say 50. Instead either the first or final image in the stack? I am using the threshold fil…

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## [Paraview -5.11.0 won't open/respond on Mac Pro M1](https://discourse.paraview.org/t/paraview-5-11-0-wont-open-respond-on-mac-pro-m1/12074)

<div class="topic-metadata">

**Author:** [@jchhoa](https://discourse.paraview.org/u/jchhoa)\
**Replies:** 1\
**Last updated:** [May 12, 2023, 3:45am UTC](https://discourse.paraview.org/t/paraview-5-11-0-wont-open-respond-on-mac-pro-m1/12074 "2023-05-12T03:45:02Z")

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Hi my Paraview app was working fine even a couple of weeks back but suddenly I don’t know what happened, it just won’t respond every time I try opening it. I’m currently using macOS Ventura 13.3.1

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## [Data array multi-component labelling question: Is it possible to remove 'Magnitude' in labelling?](https://discourse.paraview.org/t/data-array-multi-component-labelling-question-is-it-possible-to-remove-magnitude-in-labelling/11332)

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**Author:** [@Wenjie\_LU](https://discourse.paraview.org/u/Wenjie_LU)\
**Replies:** 4\
**Last updated:** [May 11, 2023, 10:11am UTC](https://discourse.paraview.org/t/data-array-multi-component-labelling-question-is-it-possible-to-remove-magnitude-in-labelling/11332 "2023-05-11T10:11:18Z")

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Hi, Is it possible to remove ‘Magnitude’ in labelling? I’ve created a reader(python plugin) and tried to present some data in certain arrays. However, the data stored in different components are irrelative(For example,…

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## [Running a python code\_TTK](https://discourse.paraview.org/t/running-a-python-code-ttk/12066)

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**Author:** [@kokebdese](https://discourse.paraview.org/u/kokebdese)\
**Replies:** 4\
**Last updated:** [May 11, 2023, 7:37am UTC](https://discourse.paraview.org/t/running-a-python-code-ttk/12066 "2023-05-11T07:37:31Z")

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Hi, As stated in the Topology toolkit website, following the procedure I tried to run the Image processing example using python from the ttk-data directory. However, I got an error saying " ModuleNotFoundError: No modul…

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## [pvbatch on ppc64le](https://discourse.paraview.org/t/pvbatch-on-ppc64le/12062)

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**Author:** [@Frankx9](https://discourse.paraview.org/u/Frankx9)\
**Replies:** 5\
**Last updated:** [May 10, 2023, 10:53pm UTC](https://discourse.paraview.org/t/pvbatch-on-ppc64le/12062 "2023-05-10T22:53:11Z")

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Hi, is there any version of ParaView with pvbatch that can be executed on ppc64le architectures? Regards

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## [Linux v5.11.1 startup error](https://discourse.paraview.org/t/linux-v5-11-1-startup-error/12060)

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**Author:** [@techn0gichida](https://discourse.paraview.org/u/techn0gichida)\
**Replies:** 1\
**Last updated:** [May 10, 2023, 1:24pm UTC](https://discourse.paraview.org/t/linux-v5-11-1-startup-error/12060 "2023-05-10T13:24:19Z")

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I installed Linux v5.11.1 but I get the following errors on startup: Running executable program /cae/apps/kitware/paraview/5.11/linux\_x86\_64/bin/paraview ( 2.695s) \[paraview \]vtkOpenGLRenderWindow.c:488 ERR…

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## [Paraview doesnt recognize multiblocks in this .cgns file but it's okay in FLUENT](https://discourse.paraview.org/t/paraview-doesnt-recognize-multiblocks-in-this-cgns-file-but-its-okay-in-fluent/12054)

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**Author:** [@John\_Hayward](https://discourse.paraview.org/u/John_Hayward)\
**Replies:** 1\
**Last updated:** [May 10, 2023, 11:18am UTC](https://discourse.paraview.org/t/paraview-doesnt-recognize-multiblocks-in-this-cgns-file-but-its-okay-in-fluent/12054 "2023-05-10T11:18:07Z")

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https://drive.google.com/drive/folders/11xeWaSKimPunvA7-1P8NH04LpImLuQC-?usp=share\_link Why ParaView is not recognizing multiblock in this .cgns file? If someone could help it would be great

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## [Temporal array filter on moving airfoil](https://discourse.paraview.org/t/temporal-array-filter-on-moving-airfoil/12058)

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**Author:** [@Dracool](https://discourse.paraview.org/u/Dracool)\
**Replies:** 0\
**Last updated:** [May 10, 2023, 9:57am UTC](https://discourse.paraview.org/t/temporal-array-filter-on-moving-airfoil/12058 "2023-05-10T09:57:49Z")

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Hi everyone ! I try to understand how the temporal array filter works for a moving airfoil. I have an overset mesh with the airfoil and I want to use the temporal array filter to get the temporal derivative (substract t…

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## [DEM with overlay issues](https://discourse.paraview.org/t/dem-with-overlay-issues/12052)

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**Author:** [@Rgnewmont](https://discourse.paraview.org/u/Rgnewmont)\
**Replies:** 0\
**Last updated:** [May 9, 2023, 8:02pm UTC](https://discourse.paraview.org/t/dem-with-overlay-issues/12052 "2023-05-09T20:02:42Z")

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Hi, Hoping someone can help me as I am fairly new to Paraview. I am trying to insert a Digital Surface Model with a jpeg overlay. I initially tried to convert the dem to a netcdf via ArcGIS Pro, however, Paraview kept c…

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## [Estimating volume of separated surfaces, plotting histogram](https://discourse.paraview.org/t/estimating-volume-of-separated-surfaces-plotting-histogram/12005)

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**Author:** [@Devin\_Richard\_Bayly](https://discourse.paraview.org/u/Devin_Richard_Bayly)\
**Replies:** 6\
**Last updated:** [May 9, 2023, 2:52pm UTC](https://discourse.paraview.org/t/estimating-volume-of-separated-surfaces-plotting-histogram/12005 "2023-05-09T14:52:41Z")

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Hi there, I’m helping out a researcher and they are interested in isosurfaces of a CT scan and calculating the volume enclosed on the interior of these spheroid shapes. You can see some of these in the image. We ar…

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## [Opening a time series with multiple files per time-points.](https://discourse.paraview.org/t/opening-a-time-series-with-multiple-files-per-time-points/12039)

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**Author:** [@tinevez](https://discourse.paraview.org/u/tinevez)\
**Replies:** 1\
**Last updated:** [May 9, 2023, 9:43am UTC](https://discourse.paraview.org/t/opening-a-time-series-with-multiple-files-per-time-points/12039 "2023-05-09T09:43:11Z")

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Hello all, I have several objects stored as meshes in a PLY files. The multiple PLY files corresponds each to one object followed over several time-points. In the docs I found out how to open a group of files as a time…

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## [Node ordering and volume computation](https://discourse.paraview.org/t/node-ordering-and-volume-computation/10826)

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**Author:** [@philippeVerney](https://discourse.paraview.org/u/philippeVerney)\
**Replies:** 7\
**Last updated:** [May 9, 2023, 7:37am UTC](https://discourse.paraview.org/t/node-ordering-and-volume-computation/10826 "2023-05-09T07:37:54Z")

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Hi all, I have created a small unstructured grid with a tetrahedron (in red) and a wedge (in blue). The node ordering for the tetrahedron is : 2 1 0 3 The node ordering for the wedge is : 0 1 2 4 5 6 I think this …

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## [line density with Surface LIC](https://discourse.paraview.org/t/line-density-with-surface-lic/12047)

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**Author:** [@chtyler](https://discourse.paraview.org/u/chtyler)\
**Replies:** 1\
**Last updated:** [May 8, 2023, 11:29pm UTC](https://discourse.paraview.org/t/line-density-with-surface-lic/12047 "2023-05-08T23:29:30Z")

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How does one control the line density with Surface LIC? Here is an example image. I’d like to increase the spacing between lines but cannot find any settings that control that. Please help. Chjris Tyler

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## [Using different dataset for coloring of glyphs](https://discourse.paraview.org/t/using-different-dataset-for-coloring-of-glyphs/12044)

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**Author:** [@Tom](https://discourse.paraview.org/u/Tom)\
**Replies:** 2\
**Last updated:** [May 8, 2023, 5:50pm UTC](https://discourse.paraview.org/t/using-different-dataset-for-coloring-of-glyphs/12044 "2023-05-08T17:50:35Z")

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Greetings all, I currently of dataset containing the flow field of a fluid and the temperature, in tow different pvd-files. I would like to create a glyph plot, where the glyphs are orientated in the direction of the cu…

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## [Black background with volume rendering](https://discourse.paraview.org/t/black-background-with-volume-rendering/11388)

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**Author:** [@Kei\_Yamamoto](https://discourse.paraview.org/u/Kei_Yamamoto)\
**Replies:** 6\
**Last updated:** [May 8, 2023, 5:02pm UTC](https://discourse.paraview.org/t/black-background-with-volume-rendering/11388 "2023-05-08T17:02:06Z")

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When I use volume rendering of the velocity data set, the background becomes black and I can’t find a way to change the background color. Please see the attached image as an example. Seems like it’s the same error that …

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## [Where are VTK Polthedra, Include Sets, and other options from the Properties in paraview 5.11](https://discourse.paraview.org/t/where-are-vtk-polthedra-include-sets-and-other-options-from-the-properties-in-paraview-5-11/12009)

<div class="topic-metadata">

**Author:** [@mnobilo](https://discourse.paraview.org/u/mnobilo)\
**Replies:** 5\
**Last updated:** [May 8, 2023, 2:25pm UTC](https://discourse.paraview.org/t/where-are-vtk-polthedra-include-sets-and-other-options-from-the-properties-in-paraview-5-11/12009 "2023-05-08T14:25:07Z")

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Hi, I have installed paraview 5.11.0 and I have a problem with finding the options such as VTK Polyhedra, Include sets and other that were in previous versions been available to tick in the Properties window. Can someon…

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## [Combine two datasets that have different time steps.](https://discourse.paraview.org/t/combine-two-datasets-that-have-different-time-steps/12042)

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**Author:** [@Kei\_Yamamoto](https://discourse.paraview.org/u/Kei_Yamamoto)\
**Replies:** 0\
**Last updated:** [May 8, 2023, 7:27am UTC](https://discourse.paraview.org/t/combine-two-datasets-that-have-different-time-steps/12042 "2023-05-08T07:27:00Z")

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I have two xdmf file that points to different h5 files with the same geometry but different time steps. As an example, first xdmf files contains velocity infromation from t=0 to t=0.18 while the second xdmf file contain…

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## [Remote rendering of custom stl files](https://discourse.paraview.org/t/remote-rendering-of-custom-stl-files/12020)

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**Author:** [@sebasgut1](https://discourse.paraview.org/u/sebasgut1)\
**Replies:** 1\
**Last updated:** [May 6, 2023, 5:28pm UTC](https://discourse.paraview.org/t/remote-rendering-of-custom-stl-files/12020 "2023-05-06T17:28:46Z")

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Hello, I was trying to perform a remote rendering using vtk.js client side and ParaViewWeb in server side. I was wondering if it is possible to send to the wslink Python server the stl files (or at least a path to them)…

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