# ParaView Support

**URL:** https://discourse.paraview.org/c/paraview-support/7.md?page=94

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**Page:** 95

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## [How can I structure the path line source file so that it can be read by the Paraview](https://discourse.paraview.org/t/how-can-i-structure-the-path-line-source-file-so-that-it-can-be-read-by-the-paraview/10564)

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**Author:** [@Haijing](https://discourse.paraview.org/u/Haijing)\
**Replies:** 10\
**Last updated:** [October 26, 2022, 2:56am UTC](https://discourse.paraview.org/t/how-can-i-structure-the-path-line-source-file-so-that-it-can-be-read-by-the-paraview/10564 "2022-10-26T02:56:52Z")

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I have the raw result data from other simulations including: the index (ID) of the particle and the x, y and z position of the particle at different time point. As in following example: Index, x postion, y postion, z p…

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## [Filtering specific particles in particle data](https://discourse.paraview.org/t/filtering-specific-particles-in-particle-data/7412)

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**Author:** [@rw31415](https://discourse.paraview.org/u/rw31415)\
**Replies:** 12\
**Last updated:** [October 26, 2022, 2:07am UTC](https://discourse.paraview.org/t/filtering-specific-particles-in-particle-data/7412 "2022-10-26T02:07:22Z")

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Hello, I have some positions data of a large number of particles over a large number of iterations. Visualizing everything at once over all iterations is therefore a bit of a hassle. I was wondering if there were any po…

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## [Unable to properly load saved state; most views cannot be shown](https://discourse.paraview.org/t/unable-to-properly-load-saved-state-most-views-cannot-be-shown/10575)

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**Author:** [@austinbenny](https://discourse.paraview.org/u/austinbenny)\
**Replies:** 16\
**Last updated:** [October 25, 2022, 8:13pm UTC](https://discourse.paraview.org/t/unable-to-properly-load-saved-state-most-views-cannot-be-shown/10575 "2022-10-25T20:13:33Z")

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Disclaimer: I am a beginner to paraview, so apologies if the terms i am about to say are not correct. I created a paraview session with multiple extract blocks, clips, slices, calculators, streamlines, etc. Each operati…

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## [Failure rendering DICe .e files](https://discourse.paraview.org/t/failure-rendering-dice-e-files/10560)

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**Author:** [@rileyjones944](https://discourse.paraview.org/u/rileyjones944)\
**Replies:** 4\
**Last updated:** [October 25, 2022, 4:37pm UTC](https://discourse.paraview.org/t/failure-rendering-dice-e-files/10560 "2022-10-25T16:37:56Z")

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Recently I have been having an issue loading .e files into ParaView where the results do not render and there is no eyeball located to the left of the file in the Pipeline Browser. I click the “Apply” button after select…

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## [Paraview Compatibility](https://discourse.paraview.org/t/paraview-compatibility/10599)

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**Author:** [@pbelkin](https://discourse.paraview.org/u/pbelkin)\
**Replies:** 0\
**Last updated:** [October 25, 2022, 4:32pm UTC](https://discourse.paraview.org/t/paraview-compatibility/10599 "2022-10-25T16:32:40Z")

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Is Paraview compatible with any of the following standards? REST API (Representational State Transfer API) FMI (Functional Mockup Interface) Syndeia Windchill API Thanks!

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## [Compute second order derivative of velocity](https://discourse.paraview.org/t/compute-second-order-derivative-of-velocity/10593)

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**Author:** [@Boone](https://discourse.paraview.org/u/Boone)\
**Replies:** 6\
**Last updated:** [October 25, 2022, 2:56pm UTC](https://discourse.paraview.org/t/compute-second-order-derivative-of-velocity/10593 "2022-10-25T14:56:58Z")

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Hi everyone, I am a new user of Paraview and I would like to compute the velocity gradient invariant for a channel flow simulation as well as quantities involving 2nd order velocity derivatives. For that reason I have t…

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## [Export glft error from paraview](https://discourse.paraview.org/t/export-glft-error-from-paraview/10585)

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**Author:** [@Jimmy-KL](https://discourse.paraview.org/u/Jimmy-KL)\
**Replies:** 2\
**Last updated:** [October 25, 2022, 6:32am UTC](https://discourse.paraview.org/t/export-glft-error-from-paraview/10585 "2022-10-25T06:32:48Z")

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simple\_model.vtk (175.9 KB) I tried to export the above model from Paraview to gltf model. I didn’t use any filter, just changed the color to color by Material. But the model exported cannot be opened by the windows…

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## [ResetSession does not reduce memory usage for Paraview 5.11 RC1-MPI](https://discourse.paraview.org/t/resetsession-does-not-reduce-memory-usage-for-paraview-5-11-rc1-mpi/10571)

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**Author:** [@lucasmyers97](https://discourse.paraview.org/u/lucasmyers97)\
**Replies:** 2\
**Last updated:** [October 24, 2022, 3:14pm UTC](https://discourse.paraview.org/t/resetsession-does-not-reduce-memory-usage-for-paraview-5-11-rc1-mpi/10571 "2022-10-24T15:14:23Z")

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I am trying to query data values at various points in a statically distributed unstructured mesh (pvtu file). I’m doing this by using mpiexec to launch pvbatch. This is a time series, and if I just read in each of the ti…

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## [Many options aren't available in my paraview](https://discourse.paraview.org/t/many-options-arent-available-in-my-paraview/10583)

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**Author:** [@axelwang](https://discourse.paraview.org/u/axelwang)\
**Replies:** 4\
**Last updated:** [October 24, 2022, 1:26pm UTC](https://discourse.paraview.org/t/many-options-arent-available-in-my-paraview/10583 "2022-10-24T13:26:36Z")

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Hey, I just downloaded paraview from the official website. The version I downloaded is: ParaView-5.11.0-RC1-MPI-OSX10.13-Python3.9-x86\_64.dmg My system is macOS Catalina v10.15.7. My question is that many options are …

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## [Export Animated Scene from python](https://discourse.paraview.org/t/export-animated-scene-from-python/10569)

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**Author:** [@Xabier\_Morales\_Ferez](https://discourse.paraview.org/u/Xabier_Morales_Ferez)\
**Replies:** 2\
**Last updated:** [October 24, 2022, 9:13am UTC](https://discourse.paraview.org/t/export-animated-scene-from-python/10569 "2022-10-24T09:13:00Z")

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Hi, I’m just automatizing the export of several animated scenes, I’m just wondering if there is a similar command to ExportView() for Export Animated Scene from the GUI. Kind regards, Xabier

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## [Hello,](https://discourse.paraview.org/t/hello/10581)

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**Author:** [@tkdgur8314](https://discourse.paraview.org/u/tkdgur8314)\
**Replies:** 4\
**Last updated:** [October 24, 2022, 8:55am UTC](https://discourse.paraview.org/t/hello/10581 "2022-10-24T08:55:16Z")

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Hello, I have a question about the current CFD computational fluid dynamics. I would like to display data through cell number, speed, pressure, and temperature for RM flow dynamics required through text file. I wonder if…

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## [Maximum number of labels -- for Lagrangian particle tracking](https://discourse.paraview.org/t/maximum-number-of-labels-for-lagrangian-particle-tracking/10572)

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**Author:** [@nadeem](https://discourse.paraview.org/u/nadeem)\
**Replies:** 2\
**Last updated:** [October 24, 2022, 2:20am UTC](https://discourse.paraview.org/t/maximum-number-of-labels-for-lagrangian-particle-tracking/10572 "2022-10-24T02:20:16Z")

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Hello, I am having great problems color coding and tracking particles in a flow field. (I am referring to real solid particle seeded in a flow, i.e. Lagrangian particle tracking.) After selecting and coloring code differ…

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## [Memory inspector not reflecting what is requested on Pvserver](https://discourse.paraview.org/t/memory-inspector-not-reflecting-what-is-requested-on-pvserver/10538)

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**Author:** [@Hussein\_Kokash](https://discourse.paraview.org/u/Hussein_Kokash)\
**Replies:** 8\
**Last updated:** [October 22, 2022, 4:15am UTC](https://discourse.paraview.org/t/memory-inspector-not-reflecting-what-is-requested-on-pvserver/10538 "2022-10-22T04:15:32Z")

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Hello, I am using reverse connection to connect to server using: mpirun -np 16 --hostfile /etc/openmpi/openmpi-default-hostfile --host 141.217.21.148: ./pvserver -ch=localhost -rc --force-offscreen-rendering It’s supp…

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## [Rendering stereo images with the OptX pathtracer](https://discourse.paraview.org/t/rendering-stereo-images-with-the-optx-pathtracer/10444)

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**Author:** [@FifteenOUC](https://discourse.paraview.org/u/FifteenOUC)\
**Replies:** 2\
**Last updated:** [October 21, 2022, 3:10pm UTC](https://discourse.paraview.org/t/rendering-stereo-images-with-the-optx-pathtracer/10444 "2022-10-21T15:10:04Z")

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Hi Community, When I rendered stereo images, I ran into a problem. In ray tracing mode with the OptX pathtracer, the correct stereo images can only be obtained when the camera position is on the y-axis. When a camera…

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## [Performance when reading large CF NetCDF4 files with many variables](https://discourse.paraview.org/t/performance-when-reading-large-cf-netcdf4-files-with-many-variables/10561)

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**Author:** [@leighorf](https://discourse.paraview.org/u/leighorf)\
**Replies:** 0\
**Last updated:** [October 20, 2022, 3:59pm UTC](https://discourse.paraview.org/t/performance-when-reading-large-cf-netcdf4-files-with-many-variables/10561 "2022-10-20T15:59:00Z")

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I am using the CF compliant NetCDF4 reader in my work. 3D data is compressed using ZFP. I do mostly Python scripting. Lately I am rendering an isosurface shaded by another 3D quantity as well as a 2D surface. So a total…

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## [Post-processing on batch mode issue](https://discourse.paraview.org/t/post-processing-on-batch-mode-issue/10550)

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**Author:** [@Shreyas](https://discourse.paraview.org/u/Shreyas)\
**Replies:** 1\
**Last updated:** [October 20, 2022, 1:10am UTC](https://discourse.paraview.org/t/post-processing-on-batch-mode-issue/10550 "2022-10-20T01:10:58Z")

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Hello, I represent the CFD team of LiU Formula student where we use ParaView for postprocessing. The python script runs with no errors capturing all the images on interactive mode. However, the following error seen in t…

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## [How to calculate sum of variable and move to global data](https://discourse.paraview.org/t/how-to-calculate-sum-of-variable-and-move-to-global-data/10552)

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**Author:** [@wascott](https://discourse.paraview.org/u/wascott)\
**Replies:** 2\
**Last updated:** [October 20, 2022, 12:57am UTC](https://discourse.paraview.org/t/how-to-calculate-sum-of-variable-and-move-to-global-data/10552 "2022-10-20T00:57:33Z")

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Hi everyone, I have a user that is trying to do calculations on point (or cell) data, and then move the result into a global variable. For instance, the user wants to do the following: # Code for ‘Script’ # ‘inputs’ …

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## [Glyph- Plot velocity vector on a 2D plane in a 3D model](https://discourse.paraview.org/t/glyph-plot-velocity-vector-on-a-2d-plane-in-a-3d-model/10547)

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**Author:** [@katherine\_1104](https://discourse.paraview.org/u/katherine_1104)\
**Replies:** 2\
**Last updated:** [October 19, 2022, 1:10am UTC](https://discourse.paraview.org/t/glyph-plot-velocity-vector-on-a-2d-plane-in-a-3d-model/10547 "2022-10-19T01:10:24Z")

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Hi, I have a 3D model. I try to plot the velocity vector component on the Y-Z plane. I only want to show the Y and Z component and direction using glyph function. Does anyone know how to do this? Or, is it feasible to …

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## [Export Mesh as Nastran to use in ICEM CFD](https://discourse.paraview.org/t/export-mesh-as-nastran-to-use-in-icem-cfd/10546)

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**Author:** [@dstansberry](https://discourse.paraview.org/u/dstansberry)\
**Replies:** 0\
**Last updated:** [October 18, 2022, 10:38pm UTC](https://discourse.paraview.org/t/export-mesh-as-nastran-to-use-in-icem-cfd/10546 "2022-10-18T22:38:23Z")

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Hello all, I am very new to Paraview and am trying to export a mesh created with openfoam as a Nastran file to be used in ICEM CFD for a project at school. After some searching I found a post that had a python script wr…

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## [Nonlinear Colormap / Legend](https://discourse.paraview.org/t/nonlinear-colormap-legend/10519)

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**Author:** [@r.fichtenau](https://discourse.paraview.org/u/r.fichtenau)\
**Replies:** 13\
**Last updated:** [October 18, 2022, 10:57am UTC](https://discourse.paraview.org/t/nonlinear-colormap-legend/10519 "2022-10-18T10:57:41Z")

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Hello all, I have the following question. I would like to create a non-linear legend in Paraview. If I try to transfer these values to Paraview, the following legend appears. Everything is “blue-shifted”. I have…

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## [Visualize velocity vector](https://discourse.paraview.org/t/visualize-velocity-vector/10527)

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**Author:** [@saman89](https://discourse.paraview.org/u/saman89)\
**Replies:** 2\
**Last updated:** [October 18, 2022, 7:19am UTC](https://discourse.paraview.org/t/visualize-velocity-vector/10527 "2022-10-18T07:19:24Z")

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Hi forum, I Want to create a glyph, but when I set the scale by magnitude the vectors inside the blue phase get very large. How can I see the vectors just inside the red phase? the case is multiphase, and the attached …

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## [Probing only selected (custom) field at a point](https://discourse.paraview.org/t/probing-only-selected-custom-field-at-a-point/10455)

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**Author:** [@FEngineer](https://discourse.paraview.org/u/FEngineer)\
**Replies:** 12\
**Last updated:** [October 18, 2022, 1:41am UTC](https://discourse.paraview.org/t/probing-only-selected-custom-field-at-a-point/10455 "2022-10-18T01:41:00Z")

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Hi, I used the Calculator filter to obtain new fields from existing ones in my data (FEA results). Now I’d like to probe the values of those fields at selected points (one by one). I tried using the Probe Location filte…

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## [Import paraview (5.8.1) module in Python 3.7 on Anaconda Juypter notebook using MacOS](https://discourse.paraview.org/t/import-paraview-5-8-1-module-in-python-3-7-on-anaconda-juypter-notebook-using-macos/5928)

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**Author:** [@fatraphael95](https://discourse.paraview.org/u/fatraphael95)\
**Replies:** 6\
**Last updated:** [October 17, 2022, 9:20pm UTC](https://discourse.paraview.org/t/import-paraview-5-8-1-module-in-python-3-7-on-anaconda-juypter-notebook-using-macos/5928 "2022-10-17T21:20:49Z")

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Hello, I have a python script that I am attempting to run in Anaconda Juypter Notebook using MacOS Catalina. On a line that tries to import Paraview that says: “from paraview.simple import \*” An error occurs that say…

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## [Reader plugin with multiple input files](https://discourse.paraview.org/t/reader-plugin-with-multiple-input-files/10512)

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**Author:** [@Devin\_Richard\_Bayly](https://discourse.paraview.org/u/Devin_Richard_Bayly)\
**Replies:** 1\
**Last updated:** [October 17, 2022, 5:58pm UTC](https://discourse.paraview.org/t/reader-plugin-with-multiple-input-files/10512 "2022-10-17T17:58:32Z")

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Hi there, I have some 3d point cloud time series data that I’m visualizing for a researcher. I previously wrote a programmable source to enable loading their data and assigning each file to a time step. This has worked …

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## [Spreadsheet view and mesh data](https://discourse.paraview.org/t/spreadsheet-view-and-mesh-data/10520)

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**Author:** [@ragdollfun](https://discourse.paraview.org/u/ragdollfun)\
**Replies:** 2\
**Last updated:** [October 17, 2022, 2:26pm UTC](https://discourse.paraview.org/t/spreadsheet-view-and-mesh-data/10520 "2022-10-17T14:26:47Z")

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Hello everyone, I’m encountering an issue with the way ParaView displays mesh data in the spreadsheet view. The data I am visualizing is stored in a STL file. From what I know, STL files describe every face of a surfac…

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## [About tutorials for 2.10. Volume Rendering](https://discourse.paraview.org/t/about-tutorials-for-2-10-volume-rendering/10531)

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**Author:** [@fchu](https://discourse.paraview.org/u/fchu)\
**Replies:** 6\
**Last updated:** [October 17, 2022, 1:16pm UTC](https://discourse.paraview.org/t/about-tutorials-for-2-10-volume-rendering/10531 "2022-10-17T13:16:13Z")

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Dear all, I have a trouble about 2.10. Volume Rendering. When I repeat the example in 2.10. Volume Rendering. I get the different visualization, as shown in the Fig. 1. the tutorials in the website : 2. Basic Usag…

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## [How to calculate water depth at points? (3D OpenFOAM)](https://discourse.paraview.org/t/how-to-calculate-water-depth-at-points-3d-openfoam/10533)

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**Author:** [@nguyenduclong.icd](https://discourse.paraview.org/u/nguyenduclong.icd)\
**Replies:** 0\
**Last updated:** [October 17, 2022, 7:59am UTC](https://discourse.paraview.org/t/how-to-calculate-water-depth-at-points-3d-openfoam/10533 "2022-10-17T07:59:01Z")

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Hello experts, I got a result of a spillway ( 3D Openfoam), which is water surface. How to calculate water depth at points in Paraview? I am appreciated for solutions

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## [Getting the total number of blocks](https://discourse.paraview.org/t/getting-the-total-number-of-blocks/10517)

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**Author:** [@Echo](https://discourse.paraview.org/u/Echo)\
**Replies:** 6\
**Last updated:** [October 17, 2022, 3:45am UTC](https://discourse.paraview.org/t/getting-the-total-number-of-blocks/10517 "2022-10-17T03:45:49Z")

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Hello All, I want to know how to get the total number of blocks in my file (in Exodus format) by using python . Thank you in advance.

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## [Saving sorted data from spreadsheet](https://discourse.paraview.org/t/saving-sorted-data-from-spreadsheet/10516)

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**Author:** [@MAGAN\_SINGH](https://discourse.paraview.org/u/MAGAN_SINGH)\
**Replies:** 3\
**Last updated:** [October 17, 2022, 1:42am UTC](https://discourse.paraview.org/t/saving-sorted-data-from-spreadsheet/10516 "2022-10-17T01:42:00Z")

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Hello I want to save sorted data from the spreadsheet for all time steps. By default, data is saved in the following format where block numbers are in ascending order for all time steps. I used the option: File \> Sav…

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## [Demonstrate points' data over time in plot and spreadsheet individually](https://discourse.paraview.org/t/demonstrate-points-data-over-time-in-plot-and-spreadsheet-individually/10466)

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**Author:** [@mehrpay](https://discourse.paraview.org/u/mehrpay)\
**Replies:** 3\
**Last updated:** [October 15, 2022, 10:44am UTC](https://discourse.paraview.org/t/demonstrate-points-data-over-time-in-plot-and-spreadsheet-individually/10466 "2022-10-15T10:44:58Z")

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Hello, I have been trying to find a way to plot and show a spreadsheet of the selected points’ displacement data over time, but the plot over time, or spreadsheet view, will show average, min, max, etc. over time and not…

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