# ParaView Support

**URL:** https://discourse.paraview.org/c/paraview-support/7.md?page=154

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

**Page:** 155

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## [How to synchronize vtkMultiDataSet between processes](https://discourse.paraview.org/t/how-to-synchronize-vtkmultidataset-between-processes/6357)

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**Author:** [@sharon](https://discourse.paraview.org/u/sharon)\
**Replies:** 0\
**Last updated:** [February 1, 2021, 2:29pm UTC](https://discourse.paraview.org/t/how-to-synchronize-vtkmultidataset-between-processes/6357 "2021-02-01T14:29:17Z")

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Dear Experts, I need synchronize vtkMultiBlockDataSet (only contains vtkPolyData) between different processes, i know this is a common practices, but i dont know how to do it in a elegant way? I found vtkMultiProcessCo…

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## [Extract exact glyph locations](https://discourse.paraview.org/t/extract-exact-glyph-locations/6347)

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**Author:** [@kamilova-maths](https://discourse.paraview.org/u/kamilova-maths)\
**Replies:** 1\
**Last updated:** [February 1, 2021, 9:34am UTC](https://discourse.paraview.org/t/extract-exact-glyph-locations/6347 "2021-02-01T09:34:18Z")

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Hi everyone, I am using the Glyph filter in Paraview, and with a lot of experimenting I managed to find the precise number and location of glyphs that look good for my image. However, when I export the csv file to plot …

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## [Paraview crash when change time step](https://discourse.paraview.org/t/paraview-crash-when-change-time-step/6351)

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**Author:** [@devinInOttawa](https://discourse.paraview.org/u/devinInOttawa)\
**Replies:** 1\
**Last updated:** [February 1, 2021, 9:22am UTC](https://discourse.paraview.org/t/paraview-crash-when-change-time-step/6351 "2021-02-01T09:22:33Z")

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cavity - Copy.zip (1.1 MB) Greetings, I used Paraview to view my Openfoam results. It crashed when I changed time step. I tried different versions of Paraview. And it did not work. Could you give me some hints what I c…

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## [Crash when 'Save animation'](https://discourse.paraview.org/t/crash-when-save-animation/6188)

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**Author:** [@Philippe\_Ackerer](https://discourse.paraview.org/u/Philippe_Ackerer)\
**Replies:** 6\
**Last updated:** [January 29, 2021, 11:32am UTC](https://discourse.paraview.org/t/crash-when-save-animation/6188 "2021-01-29T11:32:58Z")

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Hi Working with Windows 10, I installed ParaView-5.9.0-RC3-Windows-Python3.8-msvc2017-64bit. I have generated 100 files in VTK format. The animation on the screen is fine. When I want to save the animation, Paraview c…

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## [Show two time steps side-by-side](https://discourse.paraview.org/t/show-two-time-steps-side-by-side/6339)

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**Author:** [@SamVanDonut](https://discourse.paraview.org/u/SamVanDonut)\
**Replies:** 2\
**Last updated:** [January 29, 2021, 10:13am UTC](https://discourse.paraview.org/t/show-two-time-steps-side-by-side/6339 "2021-01-29T10:13:41Z")

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Hello, I have a dataset with a couple hundred time steps. I would like to split my (Render) View into two and display e.g. time step 42 on the left and time step 137 on the right. As a next step I would like to change t…

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## [how to hide front face/surface of a mesh](https://discourse.paraview.org/t/how-to-hide-front-face-surface-of-a-mesh/6299)

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**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 2\
**Last updated:** [January 29, 2021, 7:15am UTC](https://discourse.paraview.org/t/how-to-hide-front-face-surface-of-a-mesh/6299 "2021-01-29T07:15:30Z")

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Hello, once I was watching a tutorial of paraview (from what I remember) the person, select an option where paraview hides the first frontal surface/face of a mesh. for example, having a mesh-like a cube with another m…

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## ["could not open module lib ospray\_module\_ispc"](https://discourse.paraview.org/t/could-not-open-module-lib-ospray-module-ispc/4079)

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**Author:** [@Louis](https://discourse.paraview.org/u/Louis)\
**Replies:** 9\
**Last updated:** [January 29, 2021, 5:11am UTC](https://discourse.paraview.org/t/could-not-open-module-lib-ospray-module-ispc/4079 "2021-01-29T05:11:54Z")

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When loading paraview.simple, from paraview version 5.8, on windows, with my own python 3.7, I get this error dozens of times. #osp: INITIALIZATION ERROR --\> could not open module lib ospray\_module\_ispc: The specified m…

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## [5.6.0 : Add Slice Origin(0) info to renderview.](https://discourse.paraview.org/t/5-6-0-add-slice-origin-0-info-to-renderview/6315)

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**Author:** [@BB\_UK](https://discourse.paraview.org/u/BB_UK)\
**Replies:** 2\
**Last updated:** [January 28, 2021, 11:09pm UTC](https://discourse.paraview.org/t/5-6-0-add-slice-origin-0-info-to-renderview/6315 "2021-01-28T23:09:26Z")

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ParaView 5.6.0 Am generating slice views of a model and saving those as a video file. I add the Slice Origin(0) parameter to the animation panel so the slice moves through the model. I would like to add text to the an…

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## [Using ParaView with XDMF dataset - why is ParaView truncating Attribute names to 32 characters?](https://discourse.paraview.org/t/using-paraview-with-xdmf-dataset-why-is-paraview-truncating-attribute-names-to-32-characters/6332)

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**Author:** [@Andrew](https://discourse.paraview.org/u/Andrew)\
**Replies:** 0\
**Last updated:** [January 28, 2021, 5:35pm UTC](https://discourse.paraview.org/t/using-paraview-with-xdmf-dataset-why-is-paraview-truncating-attribute-names-to-32-characters/6332 "2021-01-28T17:35:19Z")

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I am a new user of ParaView. My data is in XDMF format, with the “heavy” data in HDF5 format. I have read most of the data into ParaView successfully, and have also started to plot it, etc. However, some of my Attribut…

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## [probe at locations](https://discourse.paraview.org/t/probe-at-locations/6327)

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**Author:** [@dvdbremt](https://discourse.paraview.org/u/dvdbremt)\
**Replies:** 2\
**Last updated:** [January 28, 2021, 5:18pm UTC](https://discourse.paraview.org/t/probe-at-locations/6327 "2021-01-28T17:18:56Z")

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Hi everyone, I’m new at CFD analysis. And I would like to export values (wind velocity) that are the result of a urban wind simulation. I would like to probe my model at specific locations, and to do so I have a list o…

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## [Failing to build ParaView on the Theta supercomputer](https://discourse.paraview.org/t/failing-to-build-paraview-on-the-theta-supercomputer/6309)

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**Author:** [@mdorier](https://discourse.paraview.org/u/mdorier)\
**Replies:** 5\
**Last updated:** [January 28, 2021, 3:51pm UTC](https://discourse.paraview.org/t/failing-to-build-paraview-on-the-theta-supercomputer/6309 "2021-01-28T15:51:43Z")

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I’m trying to build ParaView 5.8 on Argonne’s Theta supercomputer using gcc 9.3.0. ParaView’s dependencies are installed via spack, but I’m building ParaView manually using cmake. After 16%, I’m getting the following err…

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## [contour with white inside](https://discourse.paraview.org/t/contour-with-white-inside/6319)

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**Author:** [@aquanaut](https://discourse.paraview.org/u/aquanaut)\
**Replies:** 6\
**Last updated:** [January 28, 2021, 3:05pm UTC](https://discourse.paraview.org/t/contour-with-white-inside/6319 "2021-01-28T15:05:10Z")

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Hi,I want to make a contour map by csv data with white inside. How can I to do that? test.dat (573 Bytes) Thank you very much.

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## [Connectivity Crashing on Time Update in pvbatch without GUI](https://discourse.paraview.org/t/connectivity-crashing-on-time-update-in-pvbatch-without-gui/6316)

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**Author:** [@zwilde](https://discourse.paraview.org/u/zwilde)\
**Replies:** 1\
**Last updated:** [January 28, 2021, 2:02pm UTC](https://discourse.paraview.org/t/connectivity-crashing-on-time-update-in-pvbatch-without-gui/6316 "2021-01-28T14:02:54Z")

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I am trying to loop over the connectivity filter at different time steps to perform calculations for each region using pvbatch on a cluster (RHELS 7.8). The only way I can get the data to try to update with a changed tim…

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## [Histogram and colormap](https://discourse.paraview.org/t/histogram-and-colormap/6314)

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**Author:** [@Maugan\_S](https://discourse.paraview.org/u/Maugan_S)\
**Replies:** 1\
**Last updated:** [January 28, 2021, 11:13am UTC](https://discourse.paraview.org/t/histogram-and-colormap/6314 "2021-01-28T11:13:48Z")

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Hi, i wanted to know if if possible to get the colormap on the histogram like that But on the histogram filter that shows the differents axis : And if not, is it possible to export the first histogram (the colored one…

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## [How to change the color of the text?](https://discourse.paraview.org/t/how-to-change-the-color-of-the-text/6320)

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**Author:** [@aquanaut](https://discourse.paraview.org/u/aquanaut)\
**Replies:** 1\
**Last updated:** [January 28, 2021, 11:08am UTC](https://discourse.paraview.org/t/how-to-change-the-color-of-the-text/6320 "2021-01-28T11:08:25Z")

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## [Connectivity filter for parallel files (PVTU)](https://discourse.paraview.org/t/connectivity-filter-for-parallel-files-pvtu/5595)

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**Author:** [@JayghoshRao](https://discourse.paraview.org/u/JayghoshRao)\
**Replies:** 4\
**Last updated:** [January 28, 2021, 6:09am UTC](https://discourse.paraview.org/t/connectivity-filter-for-parallel-files-pvtu/5595 "2021-01-28T06:09:04Z")

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Hi, My dataset consists of multiple spheres within a large cylinder. I need to integrate scalars within the individual spheres and extract results. I can do this in serial using the following workflow: Open Connectivi…

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## [Error in Paraview 5.8.1 - Could not find the MPI external dependency.](https://discourse.paraview.org/t/error-in-paraview-5-8-1-could-not-find-the-mpi-external-dependency/6306)

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**Author:** [@kmilo9999](https://discourse.paraview.org/u/kmilo9999)\
**Replies:** 8\
**Last updated:** [January 27, 2021, 7:33pm UTC](https://discourse.paraview.org/t/error-in-paraview-5-8-1-could-not-find-the-mpi-external-dependency/6306 "2021-01-27T19:33:12Z")

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Hello, I am trying to build paraview 5.8.1 from the source code, and I am enabling MPI. However I am getting the error: CMake Error at VTK/CMake/vtkModule.cmake:4112 (message): Could not find the MPI external depen…

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## [Running paraview in parallel and overlapping regions](https://discourse.paraview.org/t/running-paraview-in-parallel-and-overlapping-regions/6287)

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**Author:** [@Miguel\_Angel\_Salazar](https://discourse.paraview.org/u/Miguel_Angel_Salazar)\
**Replies:** 5\
**Last updated:** [January 27, 2021, 3:36pm UTC](https://discourse.paraview.org/t/running-paraview-in-parallel-and-overlapping-regions/6287 "2021-01-27T15:36:10Z")

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I have got the result from a finite element simulation in parallel. My field is element-wise constant, although it is still Point data. I realized that the number of points is a bit excessive my idea is to get an isoc…

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## [Paraview Mesh Quality](https://discourse.paraview.org/t/paraview-mesh-quality/6308)

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**Author:** [@Jie](https://discourse.paraview.org/u/Jie)\
**Replies:** 4\
**Last updated:** [January 27, 2021, 10:15am UTC](https://discourse.paraview.org/t/paraview-mesh-quality/6308 "2021-01-27T10:15:22Z")

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Hello, when I use mesh quality and then use histogram, what does its abscissa mean? The starting values of different models are different, some start from 1, some from 0. thank you!

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## [Installing paraview on Ubuntu](https://discourse.paraview.org/t/installing-paraview-on-ubuntu/6201)

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**Author:** [@Mileguir](https://discourse.paraview.org/u/Mileguir)\
**Replies:** 11\
**Last updated:** [January 27, 2021, 10:05am UTC](https://discourse.paraview.org/t/installing-paraview-on-ubuntu/6201 "2021-01-27T10:05:53Z")

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Hi, I’m trying to install ParaView-5.9.0-RC3-MPI-Linux-Python3.8-64bit on ubuntu. I installed a Xming server. When I tried to activate paraview I received the following message, What am I doing wrong? Your help is…

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## [Removing part of the model (Remove particles within model)](https://discourse.paraview.org/t/removing-part-of-the-model-remove-particles-within-model/6301)

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**Author:** [@shahrokh](https://discourse.paraview.org/u/shahrokh)\
**Replies:** 2\
**Last updated:** [January 26, 2021, 10:24am UTC](https://discourse.paraview.org/t/removing-part-of-the-model-remove-particles-within-model/6301 "2021-01-26T10:24:41Z")

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Hello Dear Developers and Users As shown in the following figure; I have two models with the names of particlesSystem.vtk and ROI.vtk (Spherical shape). I want to do two steps: Step #1- Extract particles within ROI …

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## [Calculating Volume for .vtk File](https://discourse.paraview.org/t/calculating-volume-for-vtk-file/6255)

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**Author:** [@Jessblair11](https://discourse.paraview.org/u/Jessblair11)\
**Replies:** 9\
**Last updated:** [January 25, 2021, 11:48pm UTC](https://discourse.paraview.org/t/calculating-volume-for-vtk-file/6255 "2021-01-25T23:48:05Z")

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Hello, I am looking into finding the volume of a .vtk mesh from ITK-SNAP after applying a transformation filter. I have tried small snippets of code from the “Programmable Code” filter but the code did not work for me. …

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## [Cutting/clipping timestep data in GUI](https://discourse.paraview.org/t/cutting-clipping-timestep-data-in-gui/6232)

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**Author:** [@ksvpn](https://discourse.paraview.org/u/ksvpn)\
**Replies:** 2\
**Last updated:** [January 25, 2021, 7:08pm UTC](https://discourse.paraview.org/t/cutting-clipping-timestep-data-in-gui/6232 "2021-01-25T19:08:41Z")

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Good day, I am working within the Paraview GUI and need to cut/clip my data in order for my colormap to accurately show my range of data (velocity) - using the “rescale to data range over all timesteps” function. I was …

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## [Paraview Crashes Immediately when opened](https://discourse.paraview.org/t/paraview-crashes-immediately-when-opened/6278)

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**Author:** [@lindsi](https://discourse.paraview.org/u/lindsi)\
**Replies:** 16\
**Last updated:** [January 25, 2021, 3:36pm UTC](https://discourse.paraview.org/t/paraview-crashes-immediately-when-opened/6278 "2021-01-25T15:36:25Z")

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I have downloaded the executable of paraview a few times, both 5.8 and the release candidate 5.9 and the program seems to open fine, but it crashes immediately when I pushed the ‘open file’ button. Have I missed a requir…

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## [How can I get the main renderwindow of PV?](https://discourse.paraview.org/t/how-can-i-get-the-main-renderwindow-of-pv/6290)

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**Author:** [@lyz](https://discourse.paraview.org/u/lyz)\
**Replies:** 1\
**Last updated:** [January 25, 2021, 9:23am UTC](https://discourse.paraview.org/t/how-can-i-get-the-main-renderwindow-of-pv/6290 "2021-01-25T09:23:07Z")

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How can I get the main vtkRenderWindow or vtkRenderer from the PV using C++?

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## [Problem in loading data set](https://discourse.paraview.org/t/problem-in-loading-data-set/6293)

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**Author:** [@Karan\_Gupta](https://discourse.paraview.org/u/Karan_Gupta)\
**Replies:** 0\
**Last updated:** [January 25, 2021, 10:30am UTC](https://discourse.paraview.org/t/problem-in-loading-data-set/6293 "2021-01-25T10:30:16Z")

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I am loading one 0001 ensemble from this data set Password: SciVisContest2020 Using the below python script example.py (11.1 KB) But paraview is crashing every time i try loading state using different version. Even…

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## [Glew could not be initialized- Setting up paraview for python shell usage](https://discourse.paraview.org/t/glew-could-not-be-initialized-setting-up-paraview-for-python-shell-usage/597)

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**Author:** [@Pradyumn\_Singh](https://discourse.paraview.org/u/Pradyumn_Singh)\
**Replies:** 3\
**Last updated:** [January 25, 2021, 6:31am UTC](https://discourse.paraview.org/t/glew-could-not-be-initialized-setting-up-paraview-for-python-shell-usage/597 "2021-01-25T06:31:23Z")

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I am just trying to get paraview to work from a python shell. from paraview.simple import \* cone = Cone() Show(cone) Render() But this keeps giving me error like this ERROR:In/home/conda/feedstock\_root/build\_art…

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## [Error loading STL file](https://discourse.paraview.org/t/error-loading-stl-file/6248)

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**Author:** [@sihaqqi](https://discourse.paraview.org/u/sihaqqi)\
**Replies:** 3\
**Last updated:** [January 23, 2021, 11:07am UTC](https://discourse.paraview.org/t/error-loading-stl-file/6248 "2021-01-23T11:07:17Z")

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Hello, While trying to open my STL file in paraview, I am receiving errors as below. I have made my stl combing other stl files using cat stl/\* \> myRegionSTL.stl. All other stl files are opening successfully but this co…

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## [Reflecting axisymmetric domain in Paraview](https://discourse.paraview.org/t/reflecting-axisymmetric-domain-in-paraview/6270)

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**Author:** [@vignesh](https://discourse.paraview.org/u/vignesh)\
**Replies:** 4\
**Last updated:** [January 22, 2021, 10:09am UTC](https://discourse.paraview.org/t/reflecting-axisymmetric-domain-in-paraview/6270 "2021-01-22T10:09:31Z")

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Hello. I’m simulating the flow in a cylindrical reactor vessel, and in order to reduce computational time, I’m only considering an axisymmetric wedge ( I have attached a picture so that it’s a bit clear). My question is…

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## [summing cell values in region](https://discourse.paraview.org/t/summing-cell-values-in-region/4201)

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**Author:** [@carl](https://discourse.paraview.org/u/carl)\
**Replies:** 4\
**Last updated:** [January 22, 2021, 9:13am UTC](https://discourse.paraview.org/t/summing-cell-values-in-region/4201 "2021-01-22T09:13:33Z")

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Hi, I have defines some regions of cells based on thresholds and assigned them regionIDs and also calculated a scalar value (Encaps Vol) for each cell. I would like to sum all the scalar values (Encaps Vol) in each reg…

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