# ParaView Support

**URL:** https://discourse.paraview.org/c/paraview-support/7.md

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

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## [About the ParaView Support category](https://discourse.paraview.org/t/about-the-paraview-support-category/25)

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**Author:** [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)\
**Replies:** 0\
**Last updated:** [May 18, 2018, 5:49pm UTC](https://discourse.paraview.org/t/about-the-paraview-support-category/25 "2018-05-18T17:49:27Z")

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A place for questions about ParaView usage, building, and installation as well as general discussion about ParaView. If this is your first time here, please read ParaView FAQ before posting.

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## [any way to reconstruct images from paraview itself?](https://discourse.paraview.org/t/any-way-to-reconstruct-images-from-paraview-itself/17733)

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**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 2\
**Last updated:** [September 23, 2026, 7:08pm UTC](https://discourse.paraview.org/t/any-way-to-reconstruct-images-from-paraview-itself/17733 "2026-09-23T19:08:52Z")

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Hello, i have a bunch of ‘slices’ at different heights of a tomography scan, generally I get a “3D tiff” which when open it is a “Image (Uniform Rectilinear Grid)” with elements in each direction with a tiff value at ea…

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## [Recording Vertex Change in other Software--Exporting stress map](https://discourse.paraview.org/t/recording-vertex-change-in-other-software-exporting-stress-map/17737)

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**Author:** [@laureneck](https://discourse.paraview.org/u/laureneck)\
**Replies:** 1\
**Last updated:** [September 22, 2026, 2:55pm UTC](https://discourse.paraview.org/t/recording-vertex-change-in-other-software-exporting-stress-map/17737 "2026-09-22T14:55:51Z")

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Hi, I just downloaded Paraview 5.11.2 for my Mac M1 to work with CLO3D which is a simulation software for fabric. I can run a simulation there where the fabric mesh vertexes/faces are turned a color in a gradient from …

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## [CleanToGrid equivalent in vtk](https://discourse.paraview.org/t/cleantogrid-equivalent-in-vtk/17736)

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**Author:** [@MiguelAngelAGUIRRE](https://discourse.paraview.org/u/MiguelAngelAGUIRRE)\
**Replies:** 1\
**Last updated:** [September 22, 2026, 7:11am UTC](https://discourse.paraview.org/t/cleantogrid-equivalent-in-vtk/17736 "2026-09-22T07:11:53Z")

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Hello, I’m making a Python Programmable filter with several vtk operations concatenated. One of this operations requires applying CleanToGrid to a vtk object (It can be either vtkMultiBlockDataSet or vtkUnstructuredGrid…

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## [Curvature map analysis over just one axis](https://discourse.paraview.org/t/curvature-map-analysis-over-just-one-axis/17727)

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**Author:** [@Drifter\_River](https://discourse.paraview.org/u/Drifter_River)\
**Replies:** 3\
**Last updated:** [September 19, 2026, 8:24pm UTC](https://discourse.paraview.org/t/curvature-map-analysis-over-just-one-axis/17727 "2026-09-19T20:24:22Z")

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This is something that i have been trying to do for some time for some development of hydrodynamic products. Basically, what I want to do is to see a curvature (not contour) map along one axis of a mesh or point cloud. …

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## [Bad performance of Paraview while rendering .MED files](https://discourse.paraview.org/t/bad-performance-of-paraview-while-rendering-med-files/17720)

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**Author:** [@anirudhnehra](https://discourse.paraview.org/u/anirudhnehra)\
**Replies:** 5\
**Last updated:** [September 18, 2026, 2:42pm UTC](https://discourse.paraview.org/t/bad-performance-of-paraview-while-rendering-med-files/17720 "2026-09-18T14:42:45Z")

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Hello, Greetings. I have been trying to use paraview to visualize Code\_Aster result files (in .med or .rmed format) but the performance is not too good. The rotations and manipulation of mesh is slow. The performance is…

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## [Cell Data to Point Data question](https://discourse.paraview.org/t/cell-data-to-point-data-question/17722)

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**Author:** [@Joao\_Pedro\_Perdigao](https://discourse.paraview.org/u/Joao_Pedro_Perdigao)\
**Replies:** 6\
**Last updated:** [September 18, 2026, 8:08am UTC](https://discourse.paraview.org/t/cell-data-to-point-data-question/17722 "2026-09-18T08:08:02Z")

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Hello, I’m applying a “Cell Data to Point Data” filter to my wind tunnel data and when checking the Ranges of the data arrays I realized that the ranges (maximum and minimum values) of the Point Data differ quite a bit …

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## [Bug (?) with StreamTracer pointcloud](https://discourse.paraview.org/t/bug-with-streamtracer-pointcloud/17728)

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**Author:** [@Bismuth-tetser.93](https://discourse.paraview.org/u/Bismuth-tetser.93)\
**Replies:** 5\
**Last updated:** [September 17, 2026, 3:33pm UTC](https://discourse.paraview.org/t/bug-with-streamtracer-pointcloud/17728 "2026-09-17T15:33:57Z")

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I have a vector field, and when I create a StreamTracer cloud point filter, I face an annoying bug. I take time to specify the center of the ball that seeds the streamlines, I take time to pick a number of seed points an…

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## [Club two fields with same mesh support into one from .med file](https://discourse.paraview.org/t/club-two-fields-with-same-mesh-support-into-one-from-med-file/17537)

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**Author:** [@anirudhnehra](https://discourse.paraview.org/u/anirudhnehra)\
**Replies:** 6\
**Last updated:** [September 16, 2026, 11:48am UTC](https://discourse.paraview.org/t/club-two-fields-with-same-mesh-support-into-one-from-med-file/17537 "2026-09-16T11:48:56Z")

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Hello, Thanks for putting effort to create paraview. I use salome\_meca to create rmed files that I wish to read in paraview. The issue is that sometimes med are created with many distinct “ComSup’“ by code\_aster as sh…

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## [6.1.1 is broken for legends](https://discourse.paraview.org/t/6-1-1-is-broken-for-legends/17662)

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**Author:** [@PetrKryslUCSD](https://discourse.paraview.org/u/PetrKryslUCSD)\
**Replies:** 9\
**Last updated:** [September 13, 2026, 2:41pm UTC](https://discourse.paraview.org/t/6-1-1-is-broken-for-legends/17662 "2026-09-13T14:41:46Z")

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The legend minimum and maximum are displayed as the same (they are not), and when the color map is switched, the old legend stays on the plot, together with the new legend. Win 11. I had to get back to 5.13, this was a …

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## [updatePipeline of programmable filter overwriting the max function](https://discourse.paraview.org/t/updatepipeline-of-programmable-filter-overwriting-the-max-function/17711)

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**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 4\
**Last updated:** [September 3, 2026, 1:19pm UTC](https://discourse.paraview.org/t/updatepipeline-of-programmable-filter-overwriting-the-max-function/17711 "2026-09-03T13:19:42Z")

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first of all i must say that i was able to pinpoint this issue thanks to LLM. my code was working correctly when using paraview/python shell and running my code but when i was running it with pvbatch i was getting an er…

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## [Having the same view in different states (with different centers)](https://discourse.paraview.org/t/having-the-same-view-in-different-states-with-different-centers/17710)

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**Author:** [@Joao\_Pedro\_Perdigao](https://discourse.paraview.org/u/Joao_Pedro_Perdigao)\
**Replies:** 6\
**Last updated:** [September 2, 2026, 8:00am UTC](https://discourse.paraview.org/t/having-the-same-view-in-different-states-with-different-centers/17710 "2026-09-02T08:00:52Z")

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Hello, I’m comparing different wind tunnel data for two aircraft models and I would like to have the same views in all the tests, to better compare the results. The issue is that, since this was done experimentally (an…

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## [Delete downstream pipeline... but in python?](https://discourse.paraview.org/t/delete-downstream-pipeline-but-in-python/17708)

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**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 2\
**Last updated:** [September 1, 2026, 7:35am UTC](https://discourse.paraview.org/t/delete-downstream-pipeline-but-in-python/17708 "2026-09-01T07:35:21Z")

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Hello, is there any way to cleanly do the same action as ‘delete downstream pipeline’ but from python itself? what i came up from some sketchy coding, is a function like this, but would like any inputs (to improve it) …

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## [Python Calculator gives a scalar instead of a vector when applied after a Transform filter](https://discourse.paraview.org/t/python-calculator-gives-a-scalar-instead-of-a-vector-when-applied-after-a-transform-filter/17705)

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**Author:** [@Joao\_Pedro\_Perdigao](https://discourse.paraview.org/u/Joao_Pedro_Perdigao)\
**Replies:** 9\
**Last updated:** [August 31, 2026, 10:26pm UTC](https://discourse.paraview.org/t/python-calculator-gives-a-scalar-instead-of-a-vector-when-applied-after-a-transform-filter/17705 "2026-08-31T22:26:50Z")

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Setup: I have a Cell Data velocity vector u (3 components) on a Structured/Curvilinear Grid. I apply a Transform filter (rotation), then a Python Calculator on top with the expression u/20.15. Problem: After the Transfo…

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## ["No X column is set" in Plot Data filter](https://discourse.paraview.org/t/no-x-column-is-set-in-plot-data-filter/17706)

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**Author:** [@elynch](https://discourse.paraview.org/u/elynch)\
**Replies:** 2\
**Last updated:** [August 31, 2026, 1:17pm UTC](https://discourse.paraview.org/t/no-x-column-is-set-in-plot-data-filter/17706 "2026-08-31T13:17:16Z")

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I’m attempting to make a simple line plot of PressureCoeff\_AVG vs. Points\_X using the data in the attached file. avgTaps\_2.vtp (11.2 KB) Load data file Add a Plot Data filter, hit Apply Uncheck “Use Index For X Axis” …

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## [wrong auto-completion in python shell](https://discourse.paraview.org/t/wrong-auto-completion-in-python-shell/17707)

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**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 0\
**Last updated:** [August 31, 2026, 7:26am UTC](https://discourse.paraview.org/t/wrong-auto-completion-in-python-shell/17707 "2026-08-31T07:26:53Z")

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Hello, I came across a bug with the auto completion in functions in the python shell. if we define a function with default values such as: def add(firstValue=0,secondValue=1): return firstValue+secondValue so we …

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## [glitchy render in non conformal geometry](https://discourse.paraview.org/t/glitchy-render-in-non-conformal-geometry/17704)

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**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 3\
**Last updated:** [August 28, 2026, 11:53am UTC](https://discourse.paraview.org/t/glitchy-render-in-non-conformal-geometry/17704 "2026-08-28T11:53:08Z")

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Hello, i was doing a random test for other purposes and i found that the resulting render was quite glichy for this case of two boxes touching on the corner and merged together. here one can find the example eg.pvsm …

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## [vtkBlockColors - still helpful?](https://discourse.paraview.org/t/vtkblockcolors-still-helpful/17701)

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**Author:** [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)\
**Replies:** 9\
**Last updated:** [August 27, 2026, 7:17pm UTC](https://discourse.paraview.org/t/vtkblockcolors-still-helpful/17701 "2026-08-27T19:17:50Z")

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When one loads a composite dataset such as MultiBlock DataSet or Partitioned DataSet Collection into ParaView, ParaView generates a “vtkBlockColors” data array and colors the dataset by it by default. Anecdotally I have …

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## [Mismatch of points/tuples between vtkmCleanGrid and its VTK-numpy-wrapper](https://discourse.paraview.org/t/mismatch-of-points-tuples-between-vtkmcleangrid-and-its-vtk-numpy-wrapper/17698)

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**Author:** [@Bodacious](https://discourse.paraview.org/u/Bodacious)\
**Replies:** 8\
**Last updated:** [August 27, 2026, 6:21pm UTC](https://discourse.paraview.org/t/mismatch-of-points-tuples-between-vtkmcleangrid-and-its-vtk-numpy-wrapper/17698 "2026-08-27T18:21:49Z")

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Hello, I have a vtkUnstructuredGrid dataset that I filter with a vtkmCleanGrid VTK object in a programmable filter, whose objective is to perform the divergence operator on the VTK-numpy wrapped output of the vtkmCleanGr…

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## [VTKHDF usage](https://discourse.paraview.org/t/vtkhdf-usage/17697)

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**Author:** [@jfavre](https://discourse.paraview.org/u/jfavre)\
**Replies:** 3\
**Last updated:** [August 26, 2026, 8:51am UTC](https://discourse.paraview.org/t/vtkhdf-usage/17697 "2026-08-26T08:51:05Z")

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I am evaluating the possibility of converting my data I/O to using the VTKHDF format. I am using ParaView v6.2.0-RC1. My datasets are made of single-block unstructured grids (either hexs, or quads) I can use the follow…

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## [passArray making things.... slower?](https://discourse.paraview.org/t/passarray-making-things-slower/17699)

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**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 1\
**Last updated:** [August 26, 2026, 8:05am UTC](https://discourse.paraview.org/t/passarray-making-things-slower/17699 "2026-08-26T08:05:23Z")

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Hello, I am trying to optimize my code(python script) to speed up, my data is unstructured data with: # of cells 604 829 # of points 725 864 (float) memory 67,4922 MB fields points: PointIDs fields cell: CellIDs Flag …

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## [Custom Glyph orientation after Transform causes unexpected lighting behavior](https://discourse.paraview.org/t/custom-glyph-orientation-after-transform-causes-unexpected-lighting-behavior/17670)

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**Author:** [@pfahd](https://discourse.paraview.org/u/pfahd)\
**Replies:** 8\
**Last updated:** [August 25, 2026, 12:26pm UTC](https://discourse.paraview.org/t/custom-glyph-orientation-after-transform-causes-unexpected-lighting-behavior/17670 "2026-08-25T12:26:31Z")

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I am trying to visualize a Janus particle using Sphere-Surface-Glyph in ParaView. My goal is to create a hemisphere/sphere glyph whose symmetry axis is aligned with the Z-axis. I noticed that ParaView Glyph orientation a…

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## [ParaView error when reading OpenSees VTU files with ASDAbsorbingBoundary](https://discourse.paraview.org/t/paraview-error-when-reading-opensees-vtu-files-with-asdabsorbingboundary/17683)

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**Author:** [@Aliy1766](https://discourse.paraview.org/u/Aliy1766)\
**Replies:** 7\
**Last updated:** [August 25, 2026, 8:29am UTC](https://discourse.paraview.org/t/paraview-error-when-reading-opensees-vtu-files-with-asdabsorbingboundary/17683 "2026-08-25T08:29:54Z")

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Hello, I am using OpenSees for dynamic soil–structure interaction analysis and ParaView for post-processing the results. My model contains quad soil elements and structural elements. The VTK output works correctly in P…

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## [stop QuerySelect from Showing filter?](https://discourse.paraview.org/t/stop-queryselect-from-showing-filter/17696)

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**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 4\
**Last updated:** [August 24, 2026, 12:12pm UTC](https://discourse.paraview.org/t/stop-queryselect-from-showing-filter/17696 "2026-08-24T12:12:41Z")

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Hello, I require to select chunks of my data, by specific values of, for example IDs. following the results showed here, i am using the function that i described as extractSelectionByListOfValues\_old in my second commen…

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## [Visualising a deformed domain coloured by another variable](https://discourse.paraview.org/t/visualising-a-deformed-domain-coloured-by-another-variable/17694)

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**Author:** [@ctain](https://discourse.paraview.org/u/ctain)\
**Replies:** 3\
**Last updated:** [August 21, 2026, 1:08pm UTC](https://discourse.paraview.org/t/visualising-a-deformed-domain-coloured-by-another-variable/17694 "2026-08-21T13:08:30Z")

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I have an xdmf file with two variables, the deformation and the stress. My goal is to see the deformed domain coloured by the stress. When I open the file with Paraview (5.9.0-RC2) the plot remains in grey. The variables…

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## [possibility to use multithread/multiprocessor ?](https://discourse.paraview.org/t/possibility-to-use-multithread-multiprocessor/17639)

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**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 14\
**Last updated:** [August 19, 2026, 3:49pm UTC](https://discourse.paraview.org/t/possibility-to-use-multithread-multiprocessor/17639 "2026-08-19T15:49:53Z")

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Hello, I have a list of filters which are independent one from the other, and right now I am appliying a function to each of this filter sequentially. The function itself, uses some paraview filters BUT at the end of th…

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## [Create slice from irregular line](https://discourse.paraview.org/t/create-slice-from-irregular-line/17685)

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**Author:** [@Vinicius](https://discourse.paraview.org/u/Vinicius)\
**Replies:** 2\
**Last updated:** [August 17, 2026, 2:12pm UTC](https://discourse.paraview.org/t/create-slice-from-irregular-line/17685 "2026-08-17T14:12:13Z")

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Hi all, I am using ParaView version 5.12.0 for Windows. I would like to know if there is a way to create a slice along an irregular line within a structured grid and display it in an unwrapped format. I have a structur…

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## [Is the PVD file schema defined?](https://discourse.paraview.org/t/is-the-pvd-file-schema-defined/17678)

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**Author:** [@CsatiZoltan](https://discourse.paraview.org/u/CsatiZoltan)\
**Replies:** 2\
**Last updated:** [August 17, 2026, 9:47am UTC](https://discourse.paraview.org/t/is-the-pvd-file-schema-defined/17678 "2026-08-17T09:47:08Z")

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Hi, I would like to parse a .pvd file. Is the XML schema specified somewhere?

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## [plot over line vtp files](https://discourse.paraview.org/t/plot-over-line-vtp-files/17679)

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**Author:** [@Mersad\_j](https://discourse.paraview.org/u/Mersad_j)\
**Replies:** 3\
**Last updated:** [August 14, 2026, 7:25am UTC](https://discourse.paraview.org/t/plot-over-line-vtp-files/17679 "2026-08-14T07:25:27Z")

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validator.vtp (2.6 MB) hi i have a file in vtp format. im new to paraview and i have some problems. i share here. when i use plot over line or any types of plot filters i dont know how to set my x and y axis data. for e…

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## [Creating custom vectors on plane](https://discourse.paraview.org/t/creating-custom-vectors-on-plane/17680)

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**Author:** [@scabo](https://discourse.paraview.org/u/scabo)\
**Replies:** 3\
**Last updated:** [August 10, 2026, 11:18pm UTC](https://discourse.paraview.org/t/creating-custom-vectors-on-plane/17680 "2026-08-10T23:18:28Z")

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Hi I have the time averaged X,Y,Z velocity of a pipe flow and I have exported them into paraview format. Now i want to draw the vectors on the plane or cross-section of the pipe with my time averaged vectors field. I ha…

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