# ParaView Support

**URL:** https://discourse.paraview.org/c/paraview-support/7.md?page=177

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**Page:** 178

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## [Calculating the mean value of variables for a convergence analysis](https://discourse.paraview.org/t/calculating-the-mean-value-of-variables-for-a-convergence-analysis/4591)

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**Author:** [@wulle](https://discourse.paraview.org/u/wulle)\
**Replies:** 0\
**Last updated:** [June 16, 2020, 11:09am UTC](https://discourse.paraview.org/t/calculating-the-mean-value-of-variables-for-a-convergence-analysis/4591 "2020-06-16T11:09:56Z")

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Hello Paraview users, I have data from several structural analyses. For a convergence analysis, I would like to get mean values of the displacement and ideally the mesh quality (but I was not able to get the variables …

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## [visualizing vtk files](https://discourse.paraview.org/t/visualizing-vtk-files/4590)

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**Author:** [@Arghavanizad](https://discourse.paraview.org/u/Arghavanizad)\
**Replies:** 0\
**Last updated:** [June 16, 2020, 10:37am UTC](https://discourse.paraview.org/t/visualizing-vtk-files/4590 "2020-06-16T10:37:04Z")

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Hi everyone, I have two vtk files(velocity and pressure of surface ) in my postprocessing folder and I want to visualize them in ParaView but I don’t know which specified tools for each of those files should use for a r…

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## [Paraview reading Legacy VTK File](https://discourse.paraview.org/t/paraview-reading-legacy-vtk-file/2188)

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**Author:** [@Raychel\_Bahnick](https://discourse.paraview.org/u/Raychel_Bahnick)\
**Replies:** 10\
**Last updated:** [June 16, 2020, 10:21am UTC](https://discourse.paraview.org/t/paraview-reading-legacy-vtk-file/2188 "2020-06-16T10:21:42Z")

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Hi, I am using Paraview to map a set of x,y,z points. The data is in a .vtr file in the format of vtk legacy file in rectilinear grid. I have attached the file to this email. When I open the .vtr file in Paraview 4.1.0 …

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## [Plot over line crash since paraview 5.7](https://discourse.paraview.org/t/plot-over-line-crash-since-paraview-5-7/4587)

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**Author:** [@ymjia](https://discourse.paraview.org/u/ymjia)\
**Replies:** 5\
**Last updated:** [June 16, 2020, 5:11am UTC](https://discourse.paraview.org/t/plot-over-line-crash-since-paraview-5-7/4587 "2020-06-16T05:11:48Z")

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To reproduce, on Windows platform: 1.load a png image 2. filter-\>plot over line 3. apply ParaView5.6 can handle above process and generate correct plot. I have tested in 5.7 and 5.8(both Official release and built f…

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## [Failure to read or request data out of an .xdmf file generated from fenics](https://discourse.paraview.org/t/failure-to-read-or-request-data-out-of-an-xdmf-file-generated-from-fenics/4564)

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**Author:** [@Quinn\_B](https://discourse.paraview.org/u/Quinn_B)\
**Replies:** 5\
**Last updated:** [June 16, 2020, 1:54am UTC](https://discourse.paraview.org/t/failure-to-read-or-request-data-out-of-an-xdmf-file-generated-from-fenics/4564 "2020-06-16T01:54:05Z")

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Well like the topic said I am getting errors on paraview 5.8.0 reading data out of an xdmf file. I’m very new to paraview so I don’t know if there is something I need to add or change. These are the error messages that k…

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## [Optimal file format for complex 3D vector field](https://discourse.paraview.org/t/optimal-file-format-for-complex-3d-vector-field/4582)

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**Author:** [@knue](https://discourse.paraview.org/u/knue)\
**Replies:** 1\
**Last updated:** [June 16, 2020, 1:27am UTC](https://discourse.paraview.org/t/optimal-file-format-for-complex-3d-vector-field/4582 "2020-06-16T01:27:54Z")

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Hello, I’m currently working on a Matlab based electromagnetic code and wondering how to save this stuff to visualize properly in Paraview. My geometry consists out of 3D nodes and lines which connects this nodes. …

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## [.pvd reload only modified files](https://discourse.paraview.org/t/pvd-reload-only-modified-files/4577)

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**Author:** [@particleincell](https://discourse.paraview.org/u/particleincell)\
**Replies:** 7\
**Last updated:** [June 16, 2020, 1:08am UTC](https://discourse.paraview.org/t/pvd-reload-only-modified-files/4577 "2020-06-16T01:08:35Z")

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I am currently using a .pvd file to group a large number of 2D .vti data sets. (This is not really important, but the y-axis in each is time, and the individual files are offset such that when loaded together, we get tim…

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## [Invisible volumes when using "Warp by vector" filter](https://discourse.paraview.org/t/invisible-volumes-when-using-warp-by-vector-filter/4539)

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**Author:** [@Golho](https://discourse.paraview.org/u/Golho)\
**Replies:** 4\
**Last updated:** [June 15, 2020, 4:44am UTC](https://discourse.paraview.org/t/invisible-volumes-when-using-warp-by-vector-filter/4539 "2020-06-15T04:44:18Z")

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Hi! I’m using Paraview 5.8.0 Windows 10, 64-bits, x64 system What I want to do: I want to display a scalar field over the cells of a structured grid, by using the volume representation (so I may use the Multi Compon…

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## [Alternative function to vtkvolumetexturemapper3d](https://discourse.paraview.org/t/alternative-function-to-vtkvolumetexturemapper3d/4566)

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**Author:** [@libeiqibns](https://discourse.paraview.org/u/libeiqibns)\
**Replies:** 1\
**Last updated:** [June 12, 2020, 8:11pm UTC](https://discourse.paraview.org/t/alternative-function-to-vtkvolumetexturemapper3d/4566 "2020-06-12T20:11:25Z")

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I’m using Paraview to visualize our geomechanical simulation program. Each time we open a .vtu file, we get the following warning message. It seems this warning does not affect the visualization. However, this warning…

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## [Paraview 5.7.0 always crashes](https://discourse.paraview.org/t/paraview-5-7-0-always-crashes/4568)

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**Author:** [@Chadakarn\_Sirasitthi](https://discourse.paraview.org/u/Chadakarn_Sirasitthi)\
**Replies:** 0\
**Last updated:** [June 12, 2020, 7:37pm UTC](https://discourse.paraview.org/t/paraview-5-7-0-always-crashes/4568 "2020-06-12T19:37:48Z")

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Hi, I am using NVIDIA GeForce GTX 1050 laptop lastest version and I found out after that no matter what version is, it always crashes. I also tried 5.2, 5.5, 5.6, and 5.8 but it always crashes. The preferred version is …

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## [How to build kymograph?](https://discourse.paraview.org/t/how-to-build-kymograph/4514)

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**Author:** [@OleksiiR](https://discourse.paraview.org/u/OleksiiR)\
**Replies:** 4\
**Last updated:** [June 12, 2020, 3:02pm UTC](https://discourse.paraview.org/t/how-to-build-kymograph/4514 "2020-06-12T15:02:57Z")

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Hello! Is it possible to build kymographs in ParaView? I mean plots where one of the spatial axes represents evolution in time. Kind regards, Oleksii Rukhlenko

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## [Slicing with a Cone](https://discourse.paraview.org/t/slicing-with-a-cone/4527)

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**Author:** [@Yannick](https://discourse.paraview.org/u/Yannick)\
**Replies:** 6\
**Last updated:** [June 12, 2020, 6:16am UTC](https://discourse.paraview.org/t/slicing-with-a-cone/4527 "2020-06-12T06:16:33Z")

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Dear Paraview users, First of all I would like to point out that I am a beginner in Paraview, therefore please excuse my lack of depth in the field. I am dealing with a vtk file which contains the (x, y, z) components …

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## [extruding coastlines in spherical domain](https://discourse.paraview.org/t/extruding-coastlines-in-spherical-domain/4431)

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**Author:** [@Matt](https://discourse.paraview.org/u/Matt)\
**Replies:** 1\
**Last updated:** [June 11, 2020, 9:29pm UTC](https://discourse.paraview.org/t/extruding-coastlines-in-spherical-domain/4431 "2020-06-11T21:29:10Z")

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Hi, I’m plotting spherical data and adding coastlines from a separate file - looks great. I can also make the 3D surface deviate from a pure sphere based on my data and color that extruded surface with other variables. …

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## [Script to take the mean of data-sets](https://discourse.paraview.org/t/script-to-take-the-mean-of-data-sets/4448)

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**Author:** [@Rob777](https://discourse.paraview.org/u/Rob777)\
**Replies:** 6\
**Last updated:** [June 11, 2020, 7:36pm UTC](https://discourse.paraview.org/t/script-to-take-the-mean-of-data-sets/4448 "2020-06-11T19:36:46Z")

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Hi Everybody, I’m studying a cyclic phenomenon and I have for each period i (for a total of 3 periods), 24 datasets, for a total of 72 datasets. I have to study the data emerging from the period-averaging of such phen…

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## [mixed elements (including polyhedron) in vtu file](https://discourse.paraview.org/t/mixed-elements-including-polyhedron-in-vtu-file/4542)

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**Author:** [@tomrobin.teschner](https://discourse.paraview.org/u/tomrobin.teschner)\
**Replies:** 2\
**Last updated:** [June 11, 2020, 5:10am UTC](https://discourse.paraview.org/t/mixed-elements-including-polyhedron-in-vtu-file/4542 "2020-06-11T05:10:48Z")

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I am currently trying to bridge my CFD solver with paraview and I am about to implement support for polyhedral meshes and want to explore how to write the corresponding output file. I have used the legacy vtk file forma…

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## [Programmable filter script path](https://discourse.paraview.org/t/programmable-filter-script-path/4558)

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**Author:** [@Mahdi\_Kooshkbaghi](https://discourse.paraview.org/u/Mahdi_Kooshkbaghi)\
**Replies:** 4\
**Last updated:** [June 11, 2020, 2:31am UTC](https://discourse.paraview.org/t/programmable-filter-script-path/4558 "2020-06-11T02:31:20Z")

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Hi all, I have a script as follows: merge\_data = MergeBlocks(nek3d) # Extract selection of data for 1.0\<T\<7.5 in a range #(temperature \> 1.0) & (temperature \< 7.5) selection=SelectPoints() selection.QueryString="(tem…

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## [selector for file-series](https://discourse.paraview.org/t/selector-for-file-series/188)

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**Author:** [@olesenm](https://discourse.paraview.org/u/olesenm)\
**Replies:** 2\
**Last updated:** [June 10, 2020, 5:04pm UTC](https://discourse.paraview.org/t/selector-for-file-series/188 "2020-06-10T17:04:16Z")

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For a simulation I’m generating .vtp.series output as well. This loads fine, for example, from the command-line, but is not offered as a supported format in the File / Open selector. The selector does find .vtk.series ho…

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## [pvserver crash with multiple cpu](https://discourse.paraview.org/t/pvserver-crash-with-multiple-cpu/4555)

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**Author:** [@sharon](https://discourse.paraview.org/u/sharon)\
**Replies:** 0\
**Last updated:** [June 10, 2020, 1:57pm UTC](https://discourse.paraview.org/t/pvserver-crash-with-multiple-cpu/4555 "2020-06-10T13:57:51Z")

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Dear Experts, when i run pvserver with one cpu, it is OK, but when i run pvserver with more than one cpu, it will crash after loaded data to render. i didnt build pvserver with osmesa, when client connect to server, i…

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## [External paraview Python import fails with missing ospray\_module\_ispc error](https://discourse.paraview.org/t/external-paraview-python-import-fails-with-missing-ospray-module-ispc-error/4553)

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**Author:** [@johansh](https://discourse.paraview.org/u/johansh)\
**Replies:** 0\
**Last updated:** [June 10, 2020, 1:31pm UTC](https://discourse.paraview.org/t/external-paraview-python-import-fails-with-missing-ospray-module-ispc-error/4553 "2020-06-10T13:31:34Z")

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I have downloaded and installed the latest paraview binary distribution, and tried to import paraview to an external (conda 3.7.4, Windows 10) python installation which fails with the error: #osp: INITIALIZATION ERROR -…

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## [after update not working, openSuse Leap 15.1, paraview 5.6/5.7](https://discourse.paraview.org/t/after-update-not-working-opensuse-leap-15-1-paraview-5-6-5-7/4537)

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**Author:** [@Astrid](https://discourse.paraview.org/u/Astrid)\
**Replies:** 12\
**Last updated:** [June 10, 2020, 1:37am UTC](https://discourse.paraview.org/t/after-update-not-working-opensuse-leap-15-1-paraview-5-6-5-7/4537 "2020-06-10T01:37:18Z")

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Hello! I am using openSuse Leap 15.1 and paraview 5.6 as rpm from this and/or paraview 5.7 as rpm from science repo. All had worked very well in the past. After a packageupdate from suse it is not working any more… :…

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## [error message any HELP !!!!!](https://discourse.paraview.org/t/error-message-any-help/4520)

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**Author:** [@laylafoura](https://discourse.paraview.org/u/laylafoura)\
**Replies:** 6\
**Last updated:** [June 10, 2020, 1:35am UTC](https://discourse.paraview.org/t/error-message-any-help/4520 "2020-06-10T01:35:54Z")

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Hi, I’m just trying to visualize the results that I have from Nek5000 after exported them but it shows me an error message -

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## [Volume rendering uniform grids](https://discourse.paraview.org/t/volume-rendering-uniform-grids/3988)

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**Author:** [@Andy\_Bauer](https://discourse.paraview.org/u/Andy_Bauer)\
**Replies:** 11\
**Last updated:** [June 9, 2020, 6:12pm UTC](https://discourse.paraview.org/t/volume-rendering-uniform-grids/3988 "2020-06-09T18:12:42Z")

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Hi, Should volume rendering for vtkUniformGrid using blanking be supported in ParaView 5.8? See the attached state file for PV 5.8 – uniformgrid\_volumerender.pvsm (392.9 KB) Basically, I thought that half of the volum…

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## [how can I use paraview on another computer, logged in with ssh?](https://discourse.paraview.org/t/how-can-i-use-paraview-on-another-computer-logged-in-with-ssh/4547)

<div class="topic-metadata">

**Author:** [@Astrid](https://discourse.paraview.org/u/Astrid)\
**Replies:** 3\
**Last updated:** [June 9, 2020, 4:15pm UTC](https://discourse.paraview.org/t/how-can-i-use-paraview-on-another-computer-logged-in-with-ssh/4547 "2020-06-09T16:15:59Z")

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Hello! I make some calculations on a computer, which is far away. I am logged in there with ssh and x-forwarding. Starting e.g. “xterm” on the far-away computer, it works. I want to do the visualization of the data o…

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## [How to get ParaView Dark UI?](https://discourse.paraview.org/t/how-to-get-paraview-dark-ui/628)

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**Author:** [@banesullivan](https://discourse.paraview.org/u/banesullivan)\
**Replies:** 10\
**Last updated:** [June 9, 2020, 7:07am UTC](https://discourse.paraview.org/t/how-to-get-paraview-dark-ui/628 "2020-06-09T07:07:36Z")

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I’ve seen screen captures that show ParaView can be customized for a dark user interface such as the screen captures at this link or this link. Does anyone know of an easy way to change PV’s UI to a dark theme? Is this …

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## [Build plugin that already exists with different SM xml](https://discourse.paraview.org/t/build-plugin-that-already-exists-with-different-sm-xml/4529)

<div class="topic-metadata">

**Author:** [@Yoshino](https://discourse.paraview.org/u/Yoshino)\
**Replies:** 15\
**Last updated:** [June 9, 2020, 4:44am UTC](https://discourse.paraview.org/t/build-plugin-that-already-exists-with-different-sm-xml/4529 "2020-06-09T04:44:31Z")

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I’m trying to build paraview plugin Temporal Interpolator outside paraview source because i want to its property DiscreteTimeStepInterval to be displayed in a dropdown list instead of a double input, which is possible, r…

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## [streamlines on sphere](https://discourse.paraview.org/t/streamlines-on-sphere/4544)

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**Author:** [@Matt](https://discourse.paraview.org/u/Matt)\
**Replies:** 0\
**Last updated:** [June 9, 2020, 1:39am UTC](https://discourse.paraview.org/t/streamlines-on-sphere/4544 "2020-06-09T01:39:16Z")

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Hi, I’m trying to plot streamlines on a sphere, using the StreamLinesRepresentation plug-in. I can generate the streamlines a couple of different ways but no matter how I generate them, when I add a sphere the streamline…

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## [Generating Hexagonal Mesh](https://discourse.paraview.org/t/generating-hexagonal-mesh/4543)

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**Author:** [@Yesim](https://discourse.paraview.org/u/Yesim)\
**Replies:** 1\
**Last updated:** [June 8, 2020, 9:22pm UTC](https://discourse.paraview.org/t/generating-hexagonal-mesh/4543 "2020-06-08T21:22:44Z")

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Hi all, I wonder if there is a way to generate vtk files to be viewed in ParaView for hexagonal meshes and how can I do it? Thanks in advance

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## [Threshold on slice using an ellipse](https://discourse.paraview.org/t/threshold-on-slice-using-an-ellipse/4532)

<div class="topic-metadata">

**Author:** [@yek\_irani](https://discourse.paraview.org/u/yek_irani)\
**Replies:** 2\
**Last updated:** [June 8, 2020, 6:33pm UTC](https://discourse.paraview.org/t/threshold-on-slice-using-an-ellipse/4532 "2020-06-08T18:33:03Z")

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Hello, I am making a slice along the Y-normal plane. However, I would like to look at results confined to a region bounded by an elliptical surface. The region I want to visualize is restricted to where x^2/a^2 + z^2/b^…

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## [smoothing mesh for extruded surface?](https://discourse.paraview.org/t/smoothing-mesh-for-extruded-surface/4493)

<div class="topic-metadata">

**Author:** [@Matt](https://discourse.paraview.org/u/Matt)\
**Replies:** 6\
**Last updated:** [June 8, 2020, 5:53pm UTC](https://discourse.paraview.org/t/smoothing-mesh-for-extruded-surface/4493 "2020-06-08T17:53:16Z")

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Hi, I have spherical data and I’ve used the calculator to make an extruded surface based on one of the variables. When I zoom in, the mesh looks very boxy and I’m wondering if there’s a way to smooth it? If I switch …

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## [combine two temporal filter Extract Time Step and Interpolator](https://discourse.paraview.org/t/combine-two-temporal-filter-extract-time-step-and-interpolator/4506)

<div class="topic-metadata">

**Author:** [@Yoshino](https://discourse.paraview.org/u/Yoshino)\
**Replies:** 3\
**Last updated:** [June 8, 2020, 4:29pm UTC](https://discourse.paraview.org/t/combine-two-temporal-filter-extract-time-step-and-interpolator/4506 "2020-06-08T16:29:19Z")

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I’m really interested in two kinds of temporal filters: Extract Time Step&Temporal Interpolator. The first one allows me to choose a sub-range of timesteps while the second interpolate over timesteps. However, due to par…

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