# ParaView Support

**URL:** https://discourse.paraview.org/c/paraview-support/7.md?page=192

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

**Page:** 193

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## [Socket API](https://discourse.paraview.org/t/socket-api/3527)

<div class="topic-metadata">

**Author:** [@sohayb\_bahi](https://discourse.paraview.org/u/sohayb_bahi)\
**Replies:** 3\
**Last updated:** [February 7, 2020, 11:28am UTC](https://discourse.paraview.org/t/socket-api/3527 "2020-02-07T11:28:03Z")

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Hello, Is there an socket API to communicate with paraview.exe ?? If no , can we some how communicate with the process paraview.exe? Thank you

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## [Searching for overall description of Paraview internals](https://discourse.paraview.org/t/searching-for-overall-description-of-paraview-internals/3528)

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**Author:** [@Siltti](https://discourse.paraview.org/u/Siltti)\
**Replies:** 5\
**Last updated:** [February 7, 2020, 10:49am UTC](https://discourse.paraview.org/t/searching-for-overall-description-of-paraview-internals/3528 "2020-02-07T10:49:37Z")

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I have been reading lots of Paraview docs but one I am desperately missing is few pages description what are the blocks Paraview is built from and what is their function in the figure, like -Data is saved into structure…

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## [PythonAlgorithms Plugin: adding a new Method](https://discourse.paraview.org/t/pythonalgorithms-plugin-adding-a-new-method/3493)

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**Author:** [@ademaio](https://discourse.paraview.org/u/ademaio)\
**Replies:** 7\
**Last updated:** [February 7, 2020, 10:37am UTC](https://discourse.paraview.org/t/pythonalgorithms-plugin-adding-a-new-method/3493 "2020-02-07T10:37:25Z")

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I’m wondering if it’s possible for a plugin filter using PythonAlgorithms to add a method that can be invoked in a pvbatch script to retrieve some information. I’m trying to build such a filter, imitating the example Py…

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## [Toggle color legend visibility code](https://discourse.paraview.org/t/toggle-color-legend-visibility-code/3523)

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**Author:** [@Shubham\_Belgaonkar](https://discourse.paraview.org/u/Shubham_Belgaonkar)\
**Replies:** 4\
**Last updated:** [February 7, 2020, 3:14am UTC](https://discourse.paraview.org/t/toggle-color-legend-visibility-code/3523 "2020-02-07T03:14:11Z")

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I have the code to visualize some netcdf files. Can someone tell the code on how to change the color legend.

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## [Hardware requirements](https://discourse.paraview.org/t/hardware-requirements/3448)

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**Author:** [@rafaela](https://discourse.paraview.org/u/rafaela)\
**Replies:** 7\
**Last updated:** [February 6, 2020, 12:25pm UTC](https://discourse.paraview.org/t/hardware-requirements/3448 "2020-02-06T12:25:55Z")

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Hi, I am intending to use dream3D and Paraview to analyze my CT data. I tried to run an image in my laptop, it works (very slowly) on dream3D, but it crashes Paraview. Could you give me a suggestion of ideal hardware r…

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## [No option for Enabling OSPRay](https://discourse.paraview.org/t/no-option-for-enabling-ospray/3517)

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**Author:** [@Abbas](https://discourse.paraview.org/u/Abbas)\
**Replies:** 2\
**Last updated:** [February 6, 2020, 7:10am UTC](https://discourse.paraview.org/t/no-option-for-enabling-ospray/3517 "2020-02-06T07:10:52Z")

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Hi there, I was looking to apply some material textures to my .stl model and thought OSPRay might be the solution but Paraview 5.7 does not show any OSPRay heading. Screenshot attached.

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## [ParaView OpenGL support inadequate!](https://discourse.paraview.org/t/paraview-opengl-support-inadequate/3509)

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**Author:** [@lb30lori](https://discourse.paraview.org/u/lb30lori)\
**Replies:** 2\
**Last updated:** [February 6, 2020, 2:33am UTC](https://discourse.paraview.org/t/paraview-opengl-support-inadequate/3509 "2020-02-06T02:33:47Z")

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I have need to figure out how to solve this error: I am running it via Amazon Appstream on a Server 2016 back end with a Nvidia M60 Tesla. Any suggestions are welcome. Thanks.

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## [How to merge multiple PVD and VTP files](https://discourse.paraview.org/t/how-to-merge-multiple-pvd-and-vtp-files/3506)

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**Author:** [@GWAVE](https://discourse.paraview.org/u/GWAVE)\
**Replies:** 5\
**Last updated:** [February 6, 2020, 2:18am UTC](https://discourse.paraview.org/t/how-to-merge-multiple-pvd-and-vtp-files/3506 "2020-02-06T02:18:02Z")

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Does anyone know of a script to merge multiple PVD and VTP files? I’m talking 100s of…not 2 or 3. Question details below… Looking at one of the VTP files, by typing on the command line: more PART\_00000.vtp I get the f…

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## [Hardware Support for Paraview Client on Windows Guest](https://discourse.paraview.org/t/hardware-support-for-paraview-client-on-windows-guest/3513)

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**Author:** [@jmcculloch](https://discourse.paraview.org/u/jmcculloch)\
**Replies:** 1\
**Last updated:** [February 6, 2020, 2:13am UTC](https://discourse.paraview.org/t/hardware-support-for-paraview-client-on-windows-guest/3513 "2020-02-06T02:13:12Z")

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We would like to use the Windows Paraview Client to view simulations rendered remotely on a Linux cluster. The client is installed in a VMWare guest Windows 10 instance. The guest display adapter is reported in Device Ma…

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## [Get specific spreadsheet cell data from Integrate Variable generated spreadsheets](https://discourse.paraview.org/t/get-specific-spreadsheet-cell-data-from-integrate-variable-generated-spreadsheets/3504)

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**Author:** [@Vikram](https://discourse.paraview.org/u/Vikram)\
**Replies:** 5\
**Last updated:** [February 5, 2020, 11:30pm UTC](https://discourse.paraview.org/t/get-specific-spreadsheet-cell-data-from-integrate-variable-generated-spreadsheets/3504 "2020-02-05T23:30:32Z")

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Hello, I would like to create a ParaView python script to compute volumes of specific sub regions of the mesh (obtained via Threshold), and then print the volume to a file. Currently, I am able to use Threshold, follow…

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## [ParaView vs Tecplot Gouraud shading](https://discourse.paraview.org/t/paraview-vs-tecplot-gouraud-shading/3511)

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**Author:** [@yanb](https://discourse.paraview.org/u/yanb)\
**Replies:** 2\
**Last updated:** [February 5, 2020, 10:38pm UTC](https://discourse.paraview.org/t/paraview-vs-tecplot-gouraud-shading/3511 "2020-02-05T22:38:03Z")

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I found the ParaView Gouraud shading shows different effect from the Tecplot Gouraud. See attached two images: above is Paraview, below is Tecplot. The surface of each particle is plotted by FEM quadrilateral elements. I…

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## [Adding Scalar Data To Triangle Mesh](https://discourse.paraview.org/t/adding-scalar-data-to-triangle-mesh/3478)

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**Author:** [@dennis](https://discourse.paraview.org/u/dennis)\
**Replies:** 5\
**Last updated:** [February 4, 2020, 7:41pm UTC](https://discourse.paraview.org/t/adding-scalar-data-to-triangle-mesh/3478 "2020-02-04T19:41:21Z")

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Hi everyone, I imagine this should be easy to do in ParaView, but I haven’t had any luck with it: I have a set of files (one contains the geometry, another contains the connectivity, and another contains the scalar val…

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## [Paraview for Windows 10 with Nvidia quadro 2000M](https://discourse.paraview.org/t/paraview-for-windows-10-with-nvidia-quadro-2000m/3480)

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**Author:** [@seghir](https://discourse.paraview.org/u/seghir)\
**Replies:** 20\
**Last updated:** [February 4, 2020, 4:15pm UTC](https://discourse.paraview.org/t/paraview-for-windows-10-with-nvidia-quadro-2000m/3480 "2020-02-04T16:15:34Z")

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Hi I’m new paraview user. I installed the latest version 5.8 on windows 10 with nividia quadro 2000M graphic card. When executed with GPU, it launches and allow to open a vtk file but it displays nothing in graphic wind…

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## [Running a script in the background? / VR black screen](https://discourse.paraview.org/t/running-a-script-in-the-background-vr-black-screen/3412)

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**Author:** [@AlexisTvrs](https://discourse.paraview.org/u/AlexisTvrs)\
**Replies:** 13\
**Last updated:** [February 4, 2020, 1:59pm UTC](https://discourse.paraview.org/t/running-a-script-in-the-background-vr-black-screen/3412 "2020-02-04T13:59:32Z")

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Hello, we are a group of students currently working on a project using Paraview. To sum up, our project, constists in actively loading terrain data around a person which is in control of the camera. All of that using py…

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## [Trouble getting ParaView OpenVR plugin to work with Windows Mixed Reality Headset (Samsung Odyssey Plus)](https://discourse.paraview.org/t/trouble-getting-paraview-openvr-plugin-to-work-with-windows-mixed-reality-headset-samsung-odyssey-plus/3054)

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**Author:** [@evan.kao](https://discourse.paraview.org/u/evan.kao)\
**Replies:** 2\
**Last updated:** [February 3, 2020, 5:44pm UTC](https://discourse.paraview.org/t/trouble-getting-paraview-openvr-plugin-to-work-with-windows-mixed-reality-headset-samsung-odyssey-plus/3054 "2020-02-03T17:44:13Z")

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I recently bought a WMR headset (Samsung Odyssey+) and tried out ParaView’s OpenVR plug-n, but didn’t have much luck. Some computer specs: Computer: ASUS ROG Zephyrus S GX701 (Laptop) OS: Windows 10 Graphics card: NV…

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## [pvd collection of pvtu files gives blank output](https://discourse.paraview.org/t/pvd-collection-of-pvtu-files-gives-blank-output/3483)

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**Author:** [@vachan-potluri](https://discourse.paraview.org/u/vachan-potluri)\
**Replies:** 5\
**Last updated:** [February 3, 2020, 4:34am UTC](https://discourse.paraview.org/t/pvd-collection-of-pvtu-files-gives-blank-output/3483 "2020-02-03T04:34:51Z")

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Hello, I have many \*.pvtu.\* files which I am able to open and view as a set. I now want to combine this and form a single time series dataset. I have used the following .pvd file. \<?xml version="1.0"?\> \<VTKFile type="C…

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## [ParaView Screen Breaking Up](https://discourse.paraview.org/t/paraview-screen-breaking-up/3473)

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**Author:** [@mcrossleyuk](https://discourse.paraview.org/u/mcrossleyuk)\
**Replies:** 3\
**Last updated:** [February 3, 2020, 3:18am UTC](https://discourse.paraview.org/t/paraview-screen-breaking-up/3473 "2020-02-03T03:18:58Z")

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I’ve had fantastic support from the forum and you have allowed me to make fantastic progress. However a new problem has arisen. It has worked fine for months but I can no longer open a new case and start an analysis. Be…

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## [building version 5.7.0 on cluster](https://discourse.paraview.org/t/building-version-5-7-0-on-cluster/3472)

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**Author:** [@Rigel](https://discourse.paraview.org/u/Rigel)\
**Replies:** 4\
**Last updated:** [January 31, 2020, 5:23pm UTC](https://discourse.paraview.org/t/building-version-5-7-0-on-cluster/3472 "2020-01-31T17:23:42Z")

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Hi, I am having problems to build version 5.7.0 of ParaView on my home directory in the Dresden University’s cluster, Taurus. taurus.sh (1.7 KB) is the script I am using. I think I am loading the appropriate modules, bu…

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## [Cannot install Paraview through the binaries on Ubuntu 18.04](https://discourse.paraview.org/t/cannot-install-paraview-through-the-binaries-on-ubuntu-18-04/3463)

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**Author:** [@Xabier\_Morales\_Ferez](https://discourse.paraview.org/u/Xabier_Morales_Ferez)\
**Replies:** 2\
**Last updated:** [January 31, 2020, 3:41pm UTC](https://discourse.paraview.org/t/cannot-install-paraview-through-the-binaries-on-ubuntu-18-04/3463 "2020-01-31T15:41:39Z")

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Hi! So I had previously installed Paraview 5.4.1 through apt install Paraview on my Ubuntu. I wanted to update to the 5.8.0 RC version due to some issues with some macros not working properly. But whenever I try to inst…

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## [Can I load one file sequences from separate folders?](https://discourse.paraview.org/t/can-i-load-one-file-sequences-from-separate-folders/3465)

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**Author:** [@wyan](https://discourse.paraview.org/u/wyan)\
**Replies:** 2\
**Last updated:** [January 31, 2020, 3:37pm UTC](https://discourse.paraview.org/t/can-i-load-one-file-sequences-from-separate-folders/3465 "2020-01-31T15:37:26Z")

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We have a network file system where the maximum number of files per folder is quite limited so we have to do things like this: folder1: result0.vtp - result100.vtp folder2: result101.vtp - result200.vtp … My current …

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## [Set the center and radius of Point Source streamtracer through the python shell](https://discourse.paraview.org/t/set-the-center-and-radius-of-point-source-streamtracer-through-the-python-shell/3466)

<div class="topic-metadata">

**Author:** [@Xabier\_Morales\_Ferez](https://discourse.paraview.org/u/Xabier_Morales_Ferez)\
**Replies:** 2\
**Last updated:** [January 31, 2020, 9:33am UTC](https://discourse.paraview.org/t/set-the-center-and-radius-of-point-source-streamtracer-through-the-python-shell/3466 "2020-01-31T09:33:03Z")

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Hi! I’m working with a big dataset of similar geometries and I would like to auotmatically set the Point source streamlines on the same positions automatically, through a tracer. I would like to know if it is possible t…

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## [Python shell freezes but not pvpython](https://discourse.paraview.org/t/python-shell-freezes-but-not-pvpython/3453)

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**Author:** [@Mohammed\_Fuad\_Choudh](https://discourse.paraview.org/u/Mohammed_Fuad_Choudh)\
**Replies:** 4\
**Last updated:** [January 31, 2020, 3:57am UTC](https://discourse.paraview.org/t/python-shell-freezes-but-not-pvpython/3453 "2020-01-31T03:57:59Z")

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Hello, I am trying to create a script to automate some simulation calculations which would then be applied using the Calculator() filter in Paraview on my objects. The issue I’m having is that for some reason those code…

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## [VTK Texture Mapping Generic Error](https://discourse.paraview.org/t/vtk-texture-mapping-generic-error/3471)

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**Author:** [@Cal](https://discourse.paraview.org/u/Cal)\
**Replies:** 1\
**Last updated:** [January 31, 2020, 3:52am UTC](https://discourse.paraview.org/t/vtk-texture-mapping-generic-error/3471 "2020-01-31T03:52:37Z")

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Hi all, I was wondering if anyone knows what the attached generic error means? Thanks! Cal

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## [Interactive select points not working](https://discourse.paraview.org/t/interactive-select-points-not-working/3461)

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**Author:** [@Samanvith\_A](https://discourse.paraview.org/u/Samanvith_A)\
**Replies:** 1\
**Last updated:** [January 30, 2020, 11:26am UTC](https://discourse.paraview.org/t/interactive-select-points-not-working/3461 "2020-01-30T11:26:23Z")

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The interactive selection points is not working in ParaView 5.8. I have installed the new version of ParaView an hour ago. I have attached an image for reference

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## [Addition of two cameras while animation](https://discourse.paraview.org/t/addition-of-two-cameras-while-animation/3460)

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**Author:** [@Samanvith\_A](https://discourse.paraview.org/u/Samanvith_A)\
**Replies:** 3\
**Last updated:** [January 30, 2020, 11:11am UTC](https://discourse.paraview.org/t/addition-of-two-cameras-while-animation/3460 "2020-01-30T11:11:50Z")

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Hey. I was trying to add two types of camera i.e Orbit and Follow Path. But I wasn’t able to do that. Is there any way to do it?

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## [Is there a way to calculate the area of the faces of 3D cells (Hexahedral mesh)?](https://discourse.paraview.org/t/is-there-a-way-to-calculate-the-area-of-the-faces-of-3d-cells-hexahedral-mesh/3459)

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**Author:** [@Wico](https://discourse.paraview.org/u/Wico)\
**Replies:** 0\
**Last updated:** [January 30, 2020, 10:19am UTC](https://discourse.paraview.org/t/is-there-a-way-to-calculate-the-area-of-the-faces-of-3d-cells-hexahedral-mesh/3459 "2020-01-30T10:19:36Z")

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I want to let Paraview calculate the following aspect ratio: aspect ratio = (1/6)\*(face area of cell i/volume of cell i ^0.6667) I manged using Cell Size fileter to calculate the volume of the each cell but this filter…

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## [VTK File not displaying colours and only showing as Point Gaussian](https://discourse.paraview.org/t/vtk-file-not-displaying-colours-and-only-showing-as-point-gaussian/3294)

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**Author:** [@pavaninguva](https://discourse.paraview.org/u/pavaninguva)\
**Replies:** 3\
**Last updated:** [January 30, 2020, 9:07am UTC](https://discourse.paraview.org/t/vtk-file-not-displaying-colours-and-only-showing-as-point-gaussian/3294 "2020-01-30T09:07:00Z")

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Hi, I generated the following VTK file from a simulation in FiPy and reading it in Paraview doesnt seem to be working. I am only able to view the points as a Point Gaussian and the colours are not suitably reflected. 50.…

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## [vtkGeovisCorePython missing in Paraview?](https://discourse.paraview.org/t/vtkgeoviscorepython-missing-in-paraview/3424)

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**Author:** [@chhu](https://discourse.paraview.org/u/chhu)\
**Replies:** 4\
**Last updated:** [January 29, 2020, 9:27pm UTC](https://discourse.paraview.org/t/vtkgeoviscorepython-missing-in-paraview/3424 "2020-01-29T21:27:52Z")

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Hi, This is referring to https://gitlab.kitware.com/paraview/paraview/issues/19623 which I would still consider a bug. You explained in your own blog how to write a filter to create a map projection (I need more than Me…

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## [Corrupt kd tree error in XDMF](https://discourse.paraview.org/t/corrupt-kd-tree-error-in-xdmf/1543)

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**Author:** [@Aandreyev](https://discourse.paraview.org/u/Aandreyev)\
**Replies:** 7\
**Last updated:** [January 29, 2020, 4:41pm UTC](https://discourse.paraview.org/t/corrupt-kd-tree-error-in-xdmf/1543 "2020-01-29T16:41:13Z")

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Hi all, I filed an issue for this, but figured I’d reach out here and see if anyone else has run into this issue… When I’m running version 5.6.0 in client server mode with the server side compiled with osmesa off-scree…

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## [Correct way to scale data](https://discourse.paraview.org/t/correct-way-to-scale-data/1484)

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**Author:** [@drudox00](https://discourse.paraview.org/u/drudox00)\
**Replies:** 8\
**Last updated:** [January 29, 2020, 1:59pm UTC](https://discourse.paraview.org/t/correct-way-to-scale-data/1484 "2020-01-29T13:59:43Z")

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Hi everybody ! I’m still deal with a box of 256x256x256 cell , and polydata (vtk file containing 5 point) representing a polymer . I would like to give a scaling factor , I’ve tried using transform selecting just scale …

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