# ParaView Support

**URL:** https://discourse.paraview.org/c/paraview-support/7.md?page=70

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

**Page:** 71

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## [Paraview & Tecplot Files](https://discourse.paraview.org/t/paraview-tecplot-files/10622)

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**Author:** [@ckm931](https://discourse.paraview.org/u/ckm931)\
**Replies:** 3\
**Last updated:** [July 24, 2023, 9:18am UTC](https://discourse.paraview.org/t/paraview-tecplot-files/10622 "2023-07-24T09:18:29Z")

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Hello - I am new to paraview and I am trying to open tecplot type files that my DSMC code outputs in paraview. However I keep getting the same errors when trying to open .plt or .dat files: vtkVisItTecplotBinaryReader (…

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## [shear stress](https://discourse.paraview.org/t/shear-stress/12523)

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**Author:** [@Ahmadna94](https://discourse.paraview.org/u/Ahmadna94)\
**Replies:** 1\
**Last updated:** [July 24, 2023, 9:16am UTC](https://discourse.paraview.org/t/shear-stress/12523 "2023-07-24T09:16:07Z")

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In my post-processing workflow with ParaView, I am calculating shear stress on each point using the velocity field. I would like to confirm whether the shear stress calculated by ParaView represents the tangential compon…

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## [Error in CGNSWriter](https://discourse.paraview.org/t/error-in-cgnswriter/12544)

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**Author:** [@fra](https://discourse.paraview.org/u/fra)\
**Replies:** 3\
**Last updated:** [July 23, 2023, 8:25pm UTC](https://discourse.paraview.org/t/error-in-cgnswriter/12544 "2023-07-23T20:25:19Z")

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Hi, I have a not so large EnSight Gold multiblock file (~9M cells). I have been trying to read it, perform some simple computations and then resave the data in CGNS. Whether I use (multiple instances of) a pvserver or a…

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## [How to get smooth line plot in paraview](https://discourse.paraview.org/t/how-to-get-smooth-line-plot-in-paraview/12556)

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**Author:** [@Chhotelal](https://discourse.paraview.org/u/Chhotelal)\
**Replies:** 2\
**Last updated:** [July 22, 2023, 4:13am UTC](https://discourse.paraview.org/t/how-to-get-smooth-line-plot-in-paraview/12556 "2023-07-22T04:13:42Z")

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I am trying to make plot velocity vs length-wise, but the plot data is coming in the form of steps. Can you please tell me how can I get a smooth line plot?

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## [is shear stress calculated by paraview tangential?](https://discourse.paraview.org/t/is-shear-stress-calculated-by-paraview-tangential/12529)

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**Author:** [@Ahmadna94](https://discourse.paraview.org/u/Ahmadna94)\
**Replies:** 8\
**Last updated:** [July 21, 2023, 8:21pm UTC](https://discourse.paraview.org/t/is-shear-stress-calculated-by-paraview-tangential/12529 "2023-07-21T20:21:08Z")

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In my post-processing workflow with ParaView, I am calculating shear stress on each point using the velocity field. I would like to confirm whether the shear stress calculated by ParaView represents the tangential compon…

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## [Visual artifacts at open surface ends when raytracing data in VTU format](https://discourse.paraview.org/t/visual-artifacts-at-open-surface-ends-when-raytracing-data-in-vtu-format/12551)

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**Author:** [@Hendrice](https://discourse.paraview.org/u/Hendrice)\
**Replies:** 6\
**Last updated:** [July 21, 2023, 10:56am UTC](https://discourse.paraview.org/t/visual-artifacts-at-open-surface-ends-when-raytracing-data-in-vtu-format/12551 "2023-07-21T10:56:19Z")

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Dear ParaView-Support, I’m currently facing an issue when visualising iso-contours with raytracing. The iso-contours are created in ParaView and saved as .VTU and then loaded again and visualized. Without ray-tracing: …

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## [Extract Surface does not remove internal surfaces](https://discourse.paraview.org/t/extract-surface-does-not-remove-internal-surfaces/12552)

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**Author:** [@Massimiliano\_Leoni](https://discourse.paraview.org/u/Massimiliano_Leoni)\
**Replies:** 4\
**Last updated:** [July 21, 2023, 10:10am UTC](https://discourse.paraview.org/t/extract-surface-does-not-remove-internal-surfaces/12552 "2023-07-21T10:10:47Z")

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\[I originally posted at https://gitlab.kitware.com/paraview/paraview/-/issues/22185#note\_1378880 but I was advised to post here\]. I have a file \[tried with VTU and Fides\] written in parallel \[MPI\]. When I open it I can …

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## [How to delete or update a preset from Python](https://discourse.paraview.org/t/how-to-delete-or-update-a-preset-from-python/12548)

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**Author:** [@Rojj](https://discourse.paraview.org/u/Rojj)\
**Replies:** 2\
**Last updated:** [July 20, 2023, 4:11pm UTC](https://discourse.paraview.org/t/how-to-delete-or-update-a-preset-from-python/12548 "2023-07-20T16:11:10Z")

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Is it possible to update or delete a preset using Python? I could not find it in the docs My application uses some custom presets that are loaded with a script when ParaView starts. for colormap in results\["presets"\]\["…

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## [Draw Cylinder & Curved Shapes in VTKUnStructuredGrid](https://discourse.paraview.org/t/draw-cylinder-curved-shapes-in-vtkunstructuredgrid/12541)

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**Author:** [@anshakeel](https://discourse.paraview.org/u/anshakeel)\
**Replies:** 9\
**Last updated:** [July 19, 2023, 9:24pm UTC](https://discourse.paraview.org/t/draw-cylinder-curved-shapes-in-vtkunstructuredgrid/12541 "2023-07-19T21:24:15Z")

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Q1: I’m trying to generate VTK data. I have some Data that have cylindrical shapes like pipes and bends. I would like to convert them to VTK format. To achieve this, I am using VtkUnstructuredGrid.I searched thoroughly o…

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## [Inquiry on Precise Axis Rotation in Paraview](https://discourse.paraview.org/t/inquiry-on-precise-axis-rotation-in-paraview/12538)

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**Author:** [@wei\_peng](https://discourse.paraview.org/u/wei_peng)\
**Replies:** 2\
**Last updated:** [July 19, 2023, 2:16am UTC](https://discourse.paraview.org/t/inquiry-on-precise-axis-rotation-in-paraview/12538 "2023-07-19T02:16:21Z")

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Dear Paraview Forum members, I hope this email finds you well. I am currently working on a project where I need to precisely rotate the coordinate axis in Paraview to achieve a well-defined view of a 3D box. I want to e…

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## [Crash in setting up .vtu file in paraview](https://discourse.paraview.org/t/crash-in-setting-up-vtu-file-in-paraview/12536)

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**Author:** [@Elisan\_Magalhaes](https://discourse.paraview.org/u/Elisan_Magalhaes)\
**Replies:** 1\
**Last updated:** [July 19, 2023, 12:30am UTC](https://discourse.paraview.org/t/crash-in-setting-up-vtu-file-in-paraview/12536 "2023-07-19T00:30:04Z")

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output.vtu (12.5 KB) I’m having trouble reading this file in Paraview. Paraview crashes when I try to use the Glyph function on it. I’ve noticed that if I remove (TimeValues = “0”) from line 3 and (TimeStep=“0”) from li…

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## [How can I adjust the starting step of the STL files?](https://discourse.paraview.org/t/how-can-i-adjust-the-starting-step-of-the-stl-files/12525)

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**Author:** [@unknown\_family\_name](https://discourse.paraview.org/u/unknown_family_name)\
**Replies:** 2\
**Last updated:** [July 18, 2023, 5:22am UTC](https://discourse.paraview.org/t/how-can-i-adjust-the-starting-step-of-the-stl-files/12525 "2023-07-18T05:22:51Z")

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Hello everyone, I am creating rectangular box that contains grains. The box is filled using pluviation first and then pressed with a top cap plate. All the described sequences are saved as VTK files (grains) and STL file…

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## [dll error while performing interpolation using pykrige](https://discourse.paraview.org/t/dll-error-while-performing-interpolation-using-pykrige/12452)

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**Author:** [@dosel](https://discourse.paraview.org/u/dosel)\
**Replies:** 18\
**Last updated:** [July 17, 2023, 8:50am UTC](https://discourse.paraview.org/t/dll-error-while-performing-interpolation-using-pykrige/12452 "2023-07-17T08:50:29Z")

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Hello, I downloaded pykrige to interpolate the UCS point data to volume. I followed this workflow But when I used some codes to use this module, this error occured. But the dll file was in the path. I searched w…

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## [Correlation between two point clouds with different data](https://discourse.paraview.org/t/correlation-between-two-point-clouds-with-different-data/12490)

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**Author:** [@Alex\_G](https://discourse.paraview.org/u/Alex_G)\
**Replies:** 5\
**Last updated:** [July 14, 2023, 8:34pm UTC](https://discourse.paraview.org/t/correlation-between-two-point-clouds-with-different-data/12490 "2023-07-14T20:34:48Z")

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Hello, I am using paraview to compare two different point clouds of roughly the same geometry. One cloud is more point dense and each point’s magnitude represents strain. The other cloud is more sparse and each point is…

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## [defective png screenshots by SaveScreenshot of pvpython](https://discourse.paraview.org/t/defective-png-screenshots-by-savescreenshot-of-pvpython/12422)

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**Author:** [@cfd\_ow](https://discourse.paraview.org/u/cfd_ow)\
**Replies:** 4\
**Last updated:** [July 13, 2023, 3:37pm UTC](https://discourse.paraview.org/t/defective-png-screenshots-by-savescreenshot-of-pvpython/12422 "2023-07-13T15:37:09Z")

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Have anyone seen such defective png files exported by Paraview? The problem is that the exported png files by SaveScreenshot of pvpython are defective. Some pixels have wrong rendering. Also, this problem seems to be re…

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## [segmentation fault when visualizing vtk file in linux sever](https://discourse.paraview.org/t/segmentation-fault-when-visualizing-vtk-file-in-linux-sever/12504)

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**Author:** [@dendrite](https://discourse.paraview.org/u/dendrite)\
**Replies:** 5\
**Last updated:** [July 13, 2023, 2:48pm UTC](https://discourse.paraview.org/t/segmentation-fault-when-visualizing-vtk-file-in-linux-sever/12504 "2023-07-13T14:48:57Z")

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Hello, I’m trying to visualizing vtk file in linux server for automation. So, I got python script from paraview in window version ‘Tools - Start trace’. I’m doing quite simple job. ‘Contour’, change ‘Coloring’ as a sol…

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## [programmable filter gives wrong results](https://discourse.paraview.org/t/programmable-filter-gives-wrong-results/12492)

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**Author:** [@simonw](https://discourse.paraview.org/u/simonw)\
**Replies:** 11\
**Last updated:** [July 13, 2023, 2:46pm UTC](https://discourse.paraview.org/t/programmable-filter-gives-wrong-results/12492 "2023-07-13T14:46:39Z")

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error.pvsm (954.5 KB) I have two .vtu files (field1 and field2) which contain one scalar field each defined on a rectangular grid. I want to compute the absolute error and the relative error between them. Attached is …

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## [How to open Binary VTK file](https://discourse.paraview.org/t/how-to-open-binary-vtk-file/12514)

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**Author:** [@IllesHUN](https://discourse.paraview.org/u/IllesHUN)\
**Replies:** 2\
**Last updated:** [July 13, 2023, 2:40pm UTC](https://discourse.paraview.org/t/how-to-open-binary-vtk-file/12514 "2023-07-13T14:40:04Z")

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Hi. Im very new to all of this, today is the first time I ever heard of a vtk File. I have a Binary VTK file from a Fluid simulation program, when I tried to open the file Paraview says there is more than one reader for…

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## [How to set interpolation](https://discourse.paraview.org/t/how-to-set-interpolation/12508)

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**Author:** [@PetrKryslUCSD](https://discourse.paraview.org/u/PetrKryslUCSD)\
**Replies:** 6\
**Last updated:** [July 12, 2023, 5:43pm UTC](https://discourse.paraview.org/t/how-to-set-interpolation/12508 "2023-07-12T17:43:51Z")

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Visualizing complex vibration modes - ParaView Support - ParaView The above thread suggested how to animate a complex field (harmonic vibration). I wrote a bit of code to dump a Python script to animate the motion. Un…

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## [Animation view dialog actions not captured in the trace](https://discourse.paraview.org/t/animation-view-dialog-actions-not-captured-in-the-trace/12509)

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**Author:** [@PetrKryslUCSD](https://discourse.paraview.org/u/PetrKryslUCSD)\
**Replies:** 0\
**Last updated:** [July 12, 2023, 3:35pm UTC](https://discourse.paraview.org/t/animation-view-dialog-actions-not-captured-in-the-trace/12509 "2023-07-12T15:35:05Z")

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I start a trace to capture the python code that results from manipulating the animation view dialogues (in particular I want to step the interpolation for a warp). None of that is captured in the trace.

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## [VTKPythonAlgorithm XML to select a PointData array name](https://discourse.paraview.org/t/vtkpythonalgorithm-xml-to-select-a-pointdata-array-name/12478)

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**Author:** [@Loic](https://discourse.paraview.org/u/Loic)\
**Replies:** 1\
**Last updated:** [July 12, 2023, 2:20am UTC](https://discourse.paraview.org/t/vtkpythonalgorithm-xml-to-select-a-pointdata-array-name/12478 "2023-07-12T02:20:35Z")

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Hi, I’m trying to develop a plugin based on VTKPythonAlgorithmBase and I would like to let the user select the name of the PointData array to process. I’ve found on internet that there is an ArrayListDomain XML propert…

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## [How to reflect changes in slice\_implicit\_functions settings](https://discourse.paraview.org/t/how-to-reflect-changes-in-slice-implicit-functions-settings/12437)

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**Author:** [@Kenichiro-Yoshimi](https://discourse.paraview.org/u/Kenichiro-Yoshimi)\
**Replies:** 4\
**Last updated:** [July 11, 2023, 10:46am UTC](https://discourse.paraview.org/t/how-to-reflect-changes-in-slice-implicit-functions-settings/12437 "2023-07-11T10:46:01Z")

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I created a simple Slice Plugin in Python that inherits from VTKPythonAlgorithmBase. ( mySlicePlugin.py (1.8 KB)) This plugin uses “slice\_implicit\_functions” to set the implicit functions for cutting, but when I change…

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## [Issue with extractors in a loop](https://discourse.paraview.org/t/issue-with-extractors-in-a-loop/12472)

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**Author:** [@Anderson\_Alves](https://discourse.paraview.org/u/Anderson_Alves)\
**Replies:** 7\
**Last updated:** [July 10, 2023, 4:15pm UTC](https://discourse.paraview.org/t/issue-with-extractors-in-a-loop/12472 "2023-07-10T16:15:36Z")

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Hi there, I merged some scripts that I generated by saving catalyst states. The idea is to create multiple slices of 3D data at different intervals for each x,y, and z axis. Even though I feel that the script is too s…

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## [Reading Density Field Data](https://discourse.paraview.org/t/reading-density-field-data/12476)

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**Author:** [@ChemEng](https://discourse.paraview.org/u/ChemEng)\
**Replies:** 2\
**Last updated:** [July 10, 2023, 1:05pm UTC](https://discourse.paraview.org/t/reading-density-field-data/12476 "2023-07-10T13:05:53Z")

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Hello Paraview Users, Could help me with the error I am getting reading this file in for visualizing the density fields? I will attach it below. However, I am getting the error message: Unsupported point attribute type:…

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## [Show isosurface from data in a CSV file](https://discourse.paraview.org/t/show-isosurface-from-data-in-a-csv-file/7943)

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**Author:** [@JeffB](https://discourse.paraview.org/u/JeffB)\
**Replies:** 3\
**Last updated:** [July 10, 2023, 9:35am UTC](https://discourse.paraview.org/t/show-isosurface-from-data-in-a-csv-file/7943 "2023-07-10T09:35:34Z")

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I have a csv file. The first three columns are x,y,z coordinates and the fourth column is a density value between 0.0 and 1.0. I just want to plot an isosurface through these density values using a prescribed critical …

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## [Create rotating image around VTK mesh](https://discourse.paraview.org/t/create-rotating-image-around-vtk-mesh/12451)

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**Author:** [@Friedrich\_Krohn](https://discourse.paraview.org/u/Friedrich_Krohn)\
**Replies:** 3\
**Last updated:** [July 10, 2023, 9:16am UTC](https://discourse.paraview.org/t/create-rotating-image-around-vtk-mesh/12451 "2023-07-10T09:16:18Z")

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I would like to write a Python script where I load a VTK mesh and create a video of a camera rotating around it horizontally. If possible, I would also like to take a screenshot from each top, bottom, front, back, left a…

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## [Change Text during Animation](https://discourse.paraview.org/t/change-text-during-animation/12466)

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**Author:** [@HiAeroCycling](https://discourse.paraview.org/u/HiAeroCycling)\
**Replies:** 8\
**Last updated:** [July 7, 2023, 2:57pm UTC](https://discourse.paraview.org/t/change-text-during-animation/12466 "2023-07-07T14:57:02Z")

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Hi. I’m creating animations and would like to change the text itself of a Text Source. Tried using “aaa”, ‘AAA’, \[AAA\], etc. No success. Any help would be very welcome. Thanks!

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## [Reading \*.vtp files faster can't figure it out](https://discourse.paraview.org/t/reading-vtp-files-faster-cant-figure-it-out/12465)

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**Author:** [@rmerlob](https://discourse.paraview.org/u/rmerlob)\
**Replies:** 5\
**Last updated:** [July 7, 2023, 12:16pm UTC](https://discourse.paraview.org/t/reading-vtp-files-faster-cant-figure-it-out/12465 "2023-07-07T12:16:47Z")

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I have sets of time ordered \*.vtp files containing the shape of a flow free surface. Usually around ~200 files, total size beetween 20 - 75 GB, the files start small but as the domain gets filled up they get to around 2…

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## [Copy screenshot of multiples views to clipboard](https://discourse.paraview.org/t/copy-screenshot-of-multiples-views-to-clipboard/12463)

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**Author:** [@Juan\_Jose\_Casafranca](https://discourse.paraview.org/u/Juan_Jose_Casafranca)\
**Replies:** 5\
**Last updated:** [July 7, 2023, 11:06am UTC](https://discourse.paraview.org/t/copy-screenshot-of-multiples-views-to-clipboard/12463 "2023-07-07T11:06:56Z")

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When saving a screenshot using the “Save Screenshot” dialog, there is a checkbox to save a screenshot with all the views. In each view, there is also a button to take a screenshot of that view, and if clicked while pres…

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## [VTK file names sorting problem](https://discourse.paraview.org/t/vtk-file-names-sorting-problem/12453)

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**Author:** [@Miraboreasau](https://discourse.paraview.org/u/Miraboreasau)\
**Replies:** 1\
**Last updated:** [July 7, 2023, 9:31am UTC](https://discourse.paraview.org/t/vtk-file-names-sorting-problem/12453 "2023-07-07T09:31:30Z")

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Hi, I got these outputs from the code, but when I open with VTK, it doesn’t group to one, and the sorting is not in ascending order, what can I do in Paraview? and what is the suggestion for changing the source code outp…

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