# ParaView Support

**URL:** https://discourse.paraview.org/c/paraview-support/7.md?page=159

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

**Page:** 160

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## [can.exo](https://discourse.paraview.org/t/can-exo/5919)

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**Author:** [@cbarring](https://discourse.paraview.org/u/cbarring)\
**Replies:** 3\
**Last updated:** [December 2, 2020, 6:45pm UTC](https://discourse.paraview.org/t/can-exo/5919 "2020-12-02T18:45:13Z")

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Hi. I am using openFoam and in many of the plotting instructions it says “Open can.exo” What is can.exo? There is nothing the documentation or on cfdonline.

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## [LagrangianParticleTracker manually define flow density and dynamic viscosity](https://discourse.paraview.org/t/lagrangianparticletracker-manually-define-flow-density-and-dynamic-viscosity/5946)

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**Author:** [@matt688](https://discourse.paraview.org/u/matt688)\
**Replies:** 6\
**Last updated:** [December 2, 2020, 6:37pm UTC](https://discourse.paraview.org/t/lagrangianparticletracker-manually-define-flow-density-and-dynamic-viscosity/5946 "2020-12-02T18:37:39Z")

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Hey all, I’m attempting to use LagrangianParticleTracker (LPT) with an XDMF dataset which only has velocity flow data and no dynamic viscosity or flow density arrays. Is there a way to amend the XDMF dataset adding dyna…

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## [Should VTPD reader specify what type of dataset it is reading in?](https://discourse.paraview.org/t/should-vtpd-reader-specify-what-type-of-dataset-it-is-reading-in/5961)

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**Author:** [@Andy\_Bauer](https://discourse.paraview.org/u/Andy_Bauer)\
**Replies:** 0\
**Last updated:** [December 2, 2020, 4:49pm UTC](https://discourse.paraview.org/t/should-vtpd-reader-specify-what-type-of-dataset-it-is-reading-in/5961 "2020-12-02T16:49:55Z")

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Should the VTPD reader specify what type of dataset is being loaded in? I’m still not 100% sure of all of the details of the partitioned data (need to spend some time on that) but from my understanding it is a partitione…

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## [Issues with VTK TENSORS6](https://discourse.paraview.org/t/issues-with-vtk-tensors6/5951)

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**Author:** [@Victor\_Saouma](https://discourse.paraview.org/u/Victor_Saouma)\
**Replies:** 5\
**Last updated:** [December 2, 2020, 4:07pm UTC](https://discourse.paraview.org/t/issues-with-vtk-tensors6/5951 "2020-12-02T16:07:48Z")

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We are told that VTK/Legacy is deprecated, but what would be an alternative for someone who does not have much time to figure out how to create a dataset from say Matlab)= for his own finite element code)? I am baff…

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## [PythonCalculator: problem with division per volume(dataset)](https://discourse.paraview.org/t/pythoncalculator-problem-with-division-per-volume-dataset/5959)

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**Author:** [@Andrea](https://discourse.paraview.org/u/Andrea)\
**Replies:** 0\
**Last updated:** [December 2, 2020, 2:46pm UTC](https://discourse.paraview.org/t/pythoncalculator-problem-with-division-per-volume-dataset/5959 "2020-12-02T14:46:05Z")

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Hi, I’m using paraview on linux, I have installed numpy, and I am importing data from openfoam8. I have a scalar field (called T) and a mesh. On paraview guide it is written that “volume (dataset)” is the cell volume f…

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## [Double numbers at data axes grid](https://discourse.paraview.org/t/double-numbers-at-data-axes-grid/5955)

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**Author:** [@benediktB](https://discourse.paraview.org/u/benediktB)\
**Replies:** 2\
**Last updated:** [December 2, 2020, 12:26pm UTC](https://discourse.paraview.org/t/double-numbers-at-data-axes-grid/5955 "2020-12-02T12:26:39Z")

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Hi everyone, I have a data set with activated data axes grid. At the corners, there are sometimes two numbers, which overlap in some cases, which does not look good. I attach a image, so that you can see, what I mean. I…

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## [STL - give it a texture](https://discourse.paraview.org/t/stl-give-it-a-texture/4159)

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**Author:** [@ebreard](https://discourse.paraview.org/u/ebreard)\
**Replies:** 3\
**Last updated:** [December 2, 2020, 10:52am UTC](https://discourse.paraview.org/t/stl-give-it-a-texture/4159 "2020-12-02T10:52:04Z")

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Hello, If I load a stl in paraview, how can I give it a texture so that it looks as if it was glass for instance, or metal? combined with ospray, it would render amazing Discrete Element Modeling simulations. Thank yo…

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## [Opacity problem on Ubuntu 20.04 LTS](https://discourse.paraview.org/t/opacity-problem-on-ubuntu-20-04-lts/5885)

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**Author:** [@safranyikf](https://discourse.paraview.org/u/safranyikf)\
**Replies:** 4\
**Last updated:** [December 2, 2020, 9:21am UTC](https://discourse.paraview.org/t/opacity-problem-on-ubuntu-20-04-lts/5885 "2020-12-02T09:21:27Z")

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Dear All, I have a big trouble with ParaView 5.7.0 on Ubuntu 20.04 LTS. When I would like to change opacity of the surfaces imported from .stl the surface immediately disappears. Before updating the OS from Ubuntu 18.0…

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## [How to speed up point loop in programmable filter](https://discourse.paraview.org/t/how-to-speed-up-point-loop-in-programmable-filter/5934)

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**Author:** [@Lukasz](https://discourse.paraview.org/u/Lukasz)\
**Replies:** 2\
**Last updated:** [December 2, 2020, 8:35am UTC](https://discourse.paraview.org/t/how-to-speed-up-point-loop-in-programmable-filter/5934 "2020-12-02T08:35:47Z")

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Hi, I have written a programmable filter to perform Euler transformations based on a poly data set and a csv input. The code boils down to a loop over the mesh points and a set of standard matrix transformations of the …

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## [Backwards compatibility with old versions of VTK?](https://discourse.paraview.org/t/backwards-compatibility-with-old-versions-of-vtk/5950)

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**Author:** [@Gabriel\_Marks](https://discourse.paraview.org/u/Gabriel_Marks)\
**Replies:** 2\
**Last updated:** [December 1, 2020, 8:34pm UTC](https://discourse.paraview.org/t/backwards-compatibility-with-old-versions-of-vtk/5950 "2020-12-01T20:34:49Z")

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Hi all, How can I find out how far backwards compatibility goes between Paraview and VTK? For example, if I’m building Paraview 5.7, what’s the earliest version of VTK that I can use? Thank you.

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## ["X\_GLXCreateNewContext" error only when launching ParaView over a remote connection with X forwarding](https://discourse.paraview.org/t/x-glxcreatenewcontext-error-only-when-launching-paraview-over-a-remote-connection-with-x-forwarding/5945)

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**Author:** [@XavierStuvw](https://discourse.paraview.org/u/XavierStuvw)\
**Replies:** 6\
**Last updated:** [December 1, 2020, 7:25pm UTC](https://discourse.paraview.org/t/x-glxcreatenewcontext-error-only-when-launching-paraview-over-a-remote-connection-with-x-forwarding/5945 "2020-12-01T19:25:13Z")

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I wondered if anyone in this community has experienced the issue of getting OpenGL to work on two computers separately but not when connected remotely with VPN and SSH. I have a local installation of ParaView 5.7.0 at t…

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## [Seeing only grain boundary line](https://discourse.paraview.org/t/seeing-only-grain-boundary-line/5943)

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**Author:** [@mnabilbhuiyan](https://discourse.paraview.org/u/mnabilbhuiyan)\
**Replies:** 2\
**Last updated:** [December 1, 2020, 11:52am UTC](https://discourse.paraview.org/t/seeing-only-grain-boundary-line/5943 "2020-12-01T11:52:39Z")

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I have a system with grains and particles. I want to visualize like this figure. I need some suggestions how I can do it. Thanks in advanced. Nabil

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## [Allowing Macro Interactivity with tkinter](https://discourse.paraview.org/t/allowing-macro-interactivity-with-tkinter/5941)

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**Author:** [@Euan\_de\_Kock](https://discourse.paraview.org/u/Euan_de_Kock)\
**Replies:** 1\
**Last updated:** [December 1, 2020, 9:11am UTC](https://discourse.paraview.org/t/allowing-macro-interactivity-with-tkinter/5941 "2020-12-01T09:11:58Z")

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Hi, I am asking this again, because I cannot find a reasonable explanation of why this isn’t supported. I have a need to get some input from a user as part of my macro script. I will then make a call to a web server’s …

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## [Rescaling axes using transform filter](https://discourse.paraview.org/t/rescaling-axes-using-transform-filter/5939)

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**Author:** [@KB92](https://discourse.paraview.org/u/KB92)\
**Replies:** 0\
**Last updated:** [November 30, 2020, 8:13pm UTC](https://discourse.paraview.org/t/rescaling-axes-using-transform-filter/5939 "2020-11-30T20:13:46Z")

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Hello, my data is plotted on x-axis range 0-0.5. I used transform filter to rescale my x-axis with a factor of 0.0006 and hence the x-axis range becomes 0-0.0003. But when I plot my data on the transformed x-axis I get …

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## [How to set a physical field in grid nodes and cells](https://discourse.paraview.org/t/how-to-set-a-physical-field-in-grid-nodes-and-cells/5933)

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**Author:** [@E.Gaubesh](https://discourse.paraview.org/u/E.Gaubesh)\
**Replies:** 5\
**Last updated:** [November 30, 2020, 7:59pm UTC](https://discourse.paraview.org/t/how-to-set-a-physical-field-in-grid-nodes-and-cells/5933 "2020-11-30T19:59:02Z")

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Hello, I just started learning ParaView so need your help. I needed to create a 2D grid model and set the physical fields (temperature distribution, density, etc.) in the nodes and cells of this grid. I created a grid…

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## [Legend Annotations Not Visible](https://discourse.paraview.org/t/legend-annotations-not-visible/308)

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**Author:** [@Ron\_Fortunato](https://discourse.paraview.org/u/Ron_Fortunato)\
**Replies:** 5\
**Last updated:** [November 30, 2020, 3:29pm UTC](https://discourse.paraview.org/t/legend-annotations-not-visible/308 "2020-11-30T15:29:23Z")

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Hello, I tried multiple versions of paraview 5.5(.0 & .2) and my legend annotations are not visible. Attached are two screenshots, one showing after I opened an example visualization from the help tab called “Exodus II f…

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## [Using SaveData multiple times, in parallel with pvbatch](https://discourse.paraview.org/t/using-savedata-multiple-times-in-parallel-with-pvbatch/5935)

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**Author:** [@mjn1368](https://discourse.paraview.org/u/mjn1368)\
**Replies:** 0\
**Last updated:** [November 30, 2020, 12:33pm UTC](https://discourse.paraview.org/t/using-savedata-multiple-times-in-parallel-with-pvbatch/5935 "2020-11-30T12:33:38Z")

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Hello everyone, I try to use pvbatch to optimize my post-processing. To be short, I have a dataset that contains the coordinates of many points. I have created many “subdomains” i.e. blocks, for example here 125 blocks,…

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## [dcm files...](https://discourse.paraview.org/t/dcm-files/5926)

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**Author:** [@darlak](https://discourse.paraview.org/u/darlak)\
**Replies:** 0\
**Last updated:** [November 29, 2020, 5:20pm UTC](https://discourse.paraview.org/t/dcm-files/5926 "2020-11-29T17:20:21Z")

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Dear Paraview Support, I get exported images into dcm files but during opening I get error - can’t sorted images. Can you check it out ? I have downloaded some examples files and it works ok. Thank in advance

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## [Creating individual screenshots of a set of files (sequential job)](https://discourse.paraview.org/t/creating-individual-screenshots-of-a-set-of-files-sequential-job/5878)

<div class="topic-metadata">

**Author:** [@XavierStuvw](https://discourse.paraview.org/u/XavierStuvw)\
**Replies:** 2\
**Last updated:** [November 29, 2020, 2:54pm UTC](https://discourse.paraview.org/t/creating-individual-screenshots-of-a-set-of-files-sequential-job/5878 "2020-11-29T14:54:37Z")

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Using a custom-built ParaView 5.7.0. Have a set of 100 vtk files describing a temporal sequence. I would like to create a screenshot (png file) for each file, according to the specifications of a state file. Proceeding…

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## [Piecewise drag coefficient or any other quantity](https://discourse.paraview.org/t/piecewise-drag-coefficient-or-any-other-quantity/5873)

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**Author:** [@Mudit\_Mehta](https://discourse.paraview.org/u/Mudit_Mehta)\
**Replies:** 1\
**Last updated:** [November 28, 2020, 9:41am UTC](https://discourse.paraview.org/t/piecewise-drag-coefficient-or-any-other-quantity/5873 "2020-11-28T09:41:37Z")

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Hello, I am simulating flow around an Ahmed Body. I have estimated the overall drag on the body and Now i am interested in calculating the drag coefficient at different portions on the body like on the front end, middle…

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## [VGStudio](https://discourse.paraview.org/t/vgstudio/5905)

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**Author:** [@darlak](https://discourse.paraview.org/u/darlak)\
**Replies:** 2\
**Last updated:** [November 27, 2020, 8:30pm UTC](https://discourse.paraview.org/t/vgstudio/5905 "2020-11-27T20:30:26Z")

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I want to load a data from VGstudio .vol files. Does anyone know how to do it ? Thanks in advance Pavel

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## [Error when loading .foam file in Paraview](https://discourse.paraview.org/t/error-when-loading-foam-file-in-paraview/5866)

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**Author:** [@CFDaniel](https://discourse.paraview.org/u/CFDaniel)\
**Replies:** 5\
**Last updated:** [November 27, 2020, 4:07pm UTC](https://discourse.paraview.org/t/error-when-loading-foam-file-in-paraview/5866 "2020-11-27T16:07:10Z")

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Hello everybody, I am very new to OpenFOAM and Paraview. Currently I try to simulate a 2D backward-facing step with OpenFOAM and do the postprocessing with Paraview. I am using OpenFOAM v1912 with Docker on my MacBook…

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## [Windows 10 Error when reading uncompressed binary data header from vtu](https://discourse.paraview.org/t/windows-10-error-when-reading-uncompressed-binary-data-header-from-vtu/5900)

<div class="topic-metadata">

**Author:** [@StRuoff](https://discourse.paraview.org/u/StRuoff)\
**Replies:** 3\
**Last updated:** [November 27, 2020, 2:12pm UTC](https://discourse.paraview.org/t/windows-10-error-when-reading-uncompressed-binary-data-header-from-vtu/5900 "2020-11-27T14:12:11Z")

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Hello all, I am using the current Version (ParaView-5.9.0-RC1-Windows-Python3.8-msvc2017-64bit.zip) extracted to my user-folder, since I do not have admin rights on this machine. From my Code (C on a Linux machine), I …

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## [Extract data from a specific point rather than nodes](https://discourse.paraview.org/t/extract-data-from-a-specific-point-rather-than-nodes/5912)

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**Author:** [@Alix1](https://discourse.paraview.org/u/Alix1)\
**Replies:** 2\
**Last updated:** [November 27, 2020, 11:54am UTC](https://discourse.paraview.org/t/extract-data-from-a-specific-point-rather-than-nodes/5912 "2020-11-27T11:54:55Z")

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Hi everyone, I have a 3D geometry with unstructured mesh and I would like to extract history data from locations that are not defined by mesh nodes (or points). Is there any possible way to do this in Paraview? Thanks …

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## [Problem with reading in multiple Ensight .case files in paraview](https://discourse.paraview.org/t/problem-with-reading-in-multiple-ensight-case-files-in-paraview/5914)

<div class="topic-metadata">

**Author:** [@SCRO1022](https://discourse.paraview.org/u/SCRO1022)\
**Replies:** 0\
**Last updated:** [November 27, 2020, 11:40am UTC](https://discourse.paraview.org/t/problem-with-reading-in-multiple-ensight-case-files-in-paraview/5914 "2020-11-27T11:40:05Z")

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Hey, i am trying to use paraview as our new postprocessor for our Star-CD simulations. Since Star-CD comes with an Ensight converter, i tried to use this one to get a .case file for every .ccmp file i created in prostar…

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## [Paraview 'reader could not be found' error](https://discourse.paraview.org/t/paraview-reader-could-not-be-found-error/5899)

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**Author:** [@Mayank\_Jain](https://discourse.paraview.org/u/Mayank_Jain)\
**Replies:** 2\
**Last updated:** [November 27, 2020, 12:13am UTC](https://discourse.paraview.org/t/paraview-reader-could-not-be-found-error/5899 "2020-11-27T00:13:52Z")

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I am facing an issue while loading datasets in paraview in Windows environment. It throws up a pop-up window saying ‘reader not found’ as below. I tried working with different dataset formats VTU/VTK/RAW/PVM/EX2, but no …

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## [Enabling LagrangianParticleTracker filter from Cmake build](https://discourse.paraview.org/t/enabling-lagrangianparticletracker-filter-from-cmake-build/5901)

<div class="topic-metadata">

**Author:** [@matt688](https://discourse.paraview.org/u/matt688)\
**Replies:** 2\
**Last updated:** [November 26, 2020, 8:52pm UTC](https://discourse.paraview.org/t/enabling-lagrangianparticletracker-filter-from-cmake-build/5901 "2020-11-26T20:52:55Z")

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Hey all, I’m trying to build a ParaView with the LagrangianParticleTracker filter but I am unsure on the build parameters. Currently I am building following the repository guide with this code below: cmake -GNinja -DPy…

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## [Font family once for all](https://discourse.paraview.org/t/font-family-once-for-all/1048)

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**Author:** [@RED](https://discourse.paraview.org/u/RED)\
**Replies:** 1\
**Last updated:** [November 26, 2020, 1:58pm UTC](https://discourse.paraview.org/t/font-family-once-for-all/1048 "2020-11-26T13:58:32Z")

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Is it possible to select the font family to use once for all in a session rather than having to open the font family file in each and every “Font properties” menu? It is very nice to have full control and differentiate …

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## [VTK Vector Labels](https://discourse.paraview.org/t/vtk-vector-labels/5890)

<div class="topic-metadata">

**Author:** [@Victor\_Saouma](https://discourse.paraview.org/u/Victor_Saouma)\
**Replies:** 1\
**Last updated:** [November 26, 2020, 1:54pm UTC](https://discourse.paraview.org/t/vtk-vector-labels/5890 "2020-11-26T13:54:18Z")

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How can I explicitly define labels associated with vector (such as min, interm and max)? (those would correspond to the three eigenvalues of a tensor computed before loading the data to paraview)

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## [Paraview Gui crashes on Windows 10 with large file](https://discourse.paraview.org/t/paraview-gui-crashes-on-windows-10-with-large-file/5876)

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**Author:** [@Charliebrowne](https://discourse.paraview.org/u/Charliebrowne)\
**Replies:** 11\
**Last updated:** [November 26, 2020, 7:59am UTC](https://discourse.paraview.org/t/paraview-gui-crashes-on-windows-10-with-large-file/5876 "2020-11-26T07:59:08Z")

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Hi there I am able to load a state file, I can scroll in table data (1.8M points & 900K lines) - but the gui crashes as soon as I try and explore the rendering 3D zone. I m running on Windows 10 32Gb Ram NVIDIA GTX 670…

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