# ParaView Support

**URL:** https://discourse.paraview.org/c/paraview-support/7.md?page=217

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

**Page:** 218

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## [CGNS writer](https://discourse.paraview.org/t/cgns-writer/1366)

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**Author:** [@ebent](https://discourse.paraview.org/u/ebent)\
**Replies:** 2\
**Last updated:** [March 1, 2019, 9:08am UTC](https://discourse.paraview.org/t/cgns-writer/1366 "2019-03-01T09:08:43Z")

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Hello, I am trying to use the new CGNS writer, but I get an error: ERROR: In /Users/kitware/dashboards/buildbot-slave/8275bd07/build/superbuild/paraview/src/ParaViewCore/VTKExtensions/CGNSWriter/vtkCGNSWriter.cxx, line…

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## [Python access to servermanager GeneralSettings and RenderView settings](https://discourse.paraview.org/t/python-access-to-servermanager-generalsettings-and-renderview-settings/1369)

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**Author:** [@jfavre](https://discourse.paraview.org/u/jfavre)\
**Replies:** 2\
**Last updated:** [March 1, 2019, 8:19am UTC](https://discourse.paraview.org/t/python-access-to-servermanager-generalsettings-and-renderview-settings/1369 "2019-03-01T08:19:01Z")

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I have been using different python commands to set/get values of GeneralSettings in my python codes. settings = servermanager.vtkPVGeneralSettings() settings.Set…() and I now would like to do the same with some Render…

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## [Descriptive Statistics: Standard Deviation Missing](https://discourse.paraview.org/t/descriptive-statistics-standard-deviation-missing/1351)

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**Author:** [@Ron\_Fortunato](https://discourse.paraview.org/u/Ron_Fortunato)\
**Replies:** 1\
**Last updated:** [February 26, 2019, 9:19pm UTC](https://discourse.paraview.org/t/descriptive-statistics-standard-deviation-missing/1351 "2019-02-26T21:19:06Z")

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I think this is a pretty simple bug when I run descriptive statistics filter on even the “example visualizations” provided it no longer displays the standard deviation with the mean, median, etc. When I say no longer, I …

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## [Build Error - internal compiler error](https://discourse.paraview.org/t/build-error-internal-compiler-error/1348)

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**Author:** [@cbcoutinho](https://discourse.paraview.org/u/cbcoutinho)\
**Replies:** 2\
**Last updated:** [February 23, 2019, 10:03pm UTC](https://discourse.paraview.org/t/build-error-internal-compiler-error/1348 "2019-02-23T22:03:47Z")

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I am unable to build ParaView due to an apparent internal compiler error when building VTK. Build log (using ninja) is attached. My system: $ uname -a Linux tumbleweed 4.20.7-1-default #1 SMP PREEMPT Thu Feb 7 07:16:45…

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## [Paraview build error](https://discourse.paraview.org/t/paraview-build-error/1345)

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**Author:** [@vrkssai](https://discourse.paraview.org/u/vrkssai)\
**Replies:** 1\
**Last updated:** [February 23, 2019, 6:54pm UTC](https://discourse.paraview.org/t/paraview-build-error/1345 "2019-02-23T18:54:57Z")

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I get the following error when trying to build paraview using make : “Failed to convert servermanager XML” Error portion :---- CMake Error at /scratch/software/paraview/CMake/ParaViewClient.cmake:547 (message): Failed…

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## [paraview on master does not load python plugins](https://discourse.paraview.org/t/paraview-on-master-does-not-load-python-plugins/1343)

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**Author:** [@danlipsa](https://discourse.paraview.org/u/danlipsa)\
**Replies:** 3\
**Last updated:** [February 23, 2019, 12:49pm UTC](https://discourse.paraview.org/t/paraview-on-master-does-not-load-python-plugins/1343 "2019-02-23T12:49:38Z")

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Hi all, I am trying to load a python plugin and I am getting the following error. Note the same plugin loads correctly with ParaView 5.6 release. Do you have any suggestions? Thanks, ERROR: In /home/danlipsa/projects/…

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## [Multi-file HDF5 in .xdmf?](https://discourse.paraview.org/t/multi-file-hdf5-in-xdmf/1344)

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**Author:** [@Erik\_Keever](https://discourse.paraview.org/u/Erik_Keever)\
**Replies:** 0\
**Last updated:** [February 23, 2019, 2:19am UTC](https://discourse.paraview.org/t/multi-file-hdf5-in-xdmf/1344 "2019-02-23T02:19:03Z")

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Hello, I am trying to generate .xdmf to permit ParaView to directly read .h5 output from a parallel CFD simulation. The simulation generates one .h5 file per rank per saved step, including overlap cells. Writing a post…

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## [Use different scalar arrays as texture coordinates](https://discourse.paraview.org/t/use-different-scalar-arrays-as-texture-coordinates/1342)

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**Author:** [@banesullivan](https://discourse.paraview.org/u/banesullivan)\
**Replies:** 1\
**Last updated:** [February 22, 2019, 8:26pm UTC](https://discourse.paraview.org/t/use-different-scalar-arrays-as-texture-coordinates/1342 "2019-02-22T20:26:54Z")

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Is there an easy way to switch the array used for the texture coordinates to different point scalar arrays present in a dataset? I have three sets of texture coordinates as scalar arrays on my vtkPolyData surface and I …

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## [Exporting cell areas of a slice to compute flow rate](https://discourse.paraview.org/t/exporting-cell-areas-of-a-slice-to-compute-flow-rate/1253)

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**Author:** [@MarkB](https://discourse.paraview.org/u/MarkB)\
**Replies:** 4\
**Last updated:** [February 22, 2019, 5:58pm UTC](https://discourse.paraview.org/t/exporting-cell-areas-of-a-slice-to-compute-flow-rate/1253 "2019-02-22T17:58:59Z")

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Hi all, I have an openfoam simulation. I am interested in the flow though a slice, normal velocity vectors in this slice point in both directions. Using the Integrating filter over the slice gives me the the average fl…

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## [Is there a way to pass a clip area to a feature edges filter](https://discourse.paraview.org/t/is-there-a-way-to-pass-a-clip-area-to-a-feature-edges-filter/1340)

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**Author:** [@fabio.romani](https://discourse.paraview.org/u/fabio.romani)\
**Replies:** 1\
**Last updated:** [February 22, 2019, 5:55pm UTC](https://discourse.paraview.org/t/is-there-a-way-to-pass-a-clip-area-to-a-feature-edges-filter/1340 "2019-02-22T17:55:12Z")

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Hi, I’m trying to cut a box out of a polygon and pass the clip area to a FeatureEdges filter, but what I’m doing doesn’t seem to work. Is it possible? and if so, how? Here’s my (not working) code: 'python from paravi…

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## [Maximum Size for 2D Variables ...](https://discourse.paraview.org/t/maximum-size-for-2d-variables/1338)

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**Author:** [@Niklas](https://discourse.paraview.org/u/Niklas)\
**Replies:** 0\
**Last updated:** [February 22, 2019, 8:35am UTC](https://discourse.paraview.org/t/maximum-size-for-2d-variables/1338 "2019-02-22T08:35:05Z")

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Hi, is there a maximum number of cells defined that are allowed per process? I do have a few data sets that have variables that contain more than 100 million cells per level. I can open the data and see the bounding bo…

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## [Yet another OpenGL issue thread](https://discourse.paraview.org/t/yet-another-opengl-issue-thread/1312)

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**Author:** [@Adrian](https://discourse.paraview.org/u/Adrian)\
**Replies:** 7\
**Last updated:** [February 20, 2019, 11:55am UTC](https://discourse.paraview.org/t/yet-another-opengl-issue-thread/1312 "2019-02-20T11:55:48Z")

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I have installed ParaView 5.6 on a virtual machine (VMware workstation 14, host is windows 10 and guest is windows 7), and PV is complaining about the OpenGL version. I did the MESA\_OVERRIDE = 3.2 trick and verified tha…

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## [Enable FiltersPython](https://discourse.paraview.org/t/enable-filterspython/1328)

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**Author:** [@danlipsa](https://discourse.paraview.org/u/danlipsa)\
**Replies:** 2\
**Last updated:** [February 20, 2019, 10:59pm UTC](https://discourse.paraview.org/t/enable-filterspython/1328 "2019-02-20T22:59:20Z")

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Hi all, I just build ParaView from master and FiltersPython was not built even if VTK\_MODULE\_ENABLE\_VTK\_FiltersPython:INTERNAL=DEFAULT I did not see an option in ParaView to enable that. I had to cmake -DVTK\_MODULE…

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## [Looking for a feature: "invisible" for selection?](https://discourse.paraview.org/t/looking-for-a-feature-invisible-for-selection/1322)

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**Author:** [@cobo](https://discourse.paraview.org/u/cobo)\
**Replies:** 9\
**Last updated:** [February 20, 2019, 4:12pm UTC](https://discourse.paraview.org/t/looking-for-a-feature-invisible-for-selection/1322 "2019-02-20T16:12:39Z")

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Not sure if I am just blind or the feature does not exist!? What I mean: You have two graphic “items” in the pipeline which you show in a render view. Now you want to select cells or points in one of the two, but not in…

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## [Animation with CGNS or other file formats.](https://discourse.paraview.org/t/animation-with-cgns-or-other-file-formats/1321)

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**Author:** [@kennethchall](https://discourse.paraview.org/u/kennethchall)\
**Replies:** 2\
**Last updated:** [February 19, 2019, 6:52pm UTC](https://discourse.paraview.org/t/animation-with-cgns-or-other-file-formats/1321 "2019-02-19T18:52:03Z")

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Hi all, I use ParaView to plot CFD results stored in CGNS format. I have done some animations as well, which seems to work well OK except that I struggle with grid motion. I have CFD grids that move as rigid bodies re…

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## [Using vtk libraries for writing in xml/vtk fileformat using fortran](https://discourse.paraview.org/t/using-vtk-libraries-for-writing-in-xml-vtk-fileformat-using-fortran/1305)

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**Author:** [@vrkssai](https://discourse.paraview.org/u/vrkssai)\
**Replies:** 2\
**Last updated:** [February 19, 2019, 9:28am UTC](https://discourse.paraview.org/t/using-vtk-libraries-for-writing-in-xml-vtk-fileformat-using-fortran/1305 "2019-02-19T09:28:30Z")

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I wondering if someone would help me on how to install,use vtk libraries to write data in binary format in fortran. Alternatively, suitable modifications to write in binary format from a fortran code wrting files in .vtk…

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## [negative scale causes problem with volume rendering](https://discourse.paraview.org/t/negative-scale-causes-problem-with-volume-rendering/1245)

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**Author:** [@matthieuvitse](https://discourse.paraview.org/u/matthieuvitse)\
**Replies:** 8\
**Last updated:** [February 19, 2019, 8:57am UTC](https://discourse.paraview.org/t/negative-scale-causes-problem-with-volume-rendering/1245 "2019-02-19T08:57:36Z")

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Hi, I need to align several datasets, by rotating and scaling one of them to match the others. When I apply a -1 scale in the y direction to a Resample to Image data, the volume data is not entirely rendered anymore but…

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## [find coordinates of holes inside a polygon](https://discourse.paraview.org/t/find-coordinates-of-holes-inside-a-polygon/1243)

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**Author:** [@fabio.romani](https://discourse.paraview.org/u/fabio.romani)\
**Replies:** 10\
**Last updated:** [February 18, 2019, 4:47pm UTC](https://discourse.paraview.org/t/find-coordinates-of-holes-inside-a-polygon/1243 "2019-02-18T16:47:34Z")

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Hi, I have a polygon shape filled up with holes. I need to locate and collect the holes for further processing. Is there an easy way using python shell/script/filters to find those holes? Thanks Fabio

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## [Reader for visualizing overlappingAMR data?](https://discourse.paraview.org/t/reader-for-visualizing-overlappingamr-data/1314)

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**Author:** [@Xinran\_Zhao](https://discourse.paraview.org/u/Xinran_Zhao)\
**Replies:** 0\
**Last updated:** [February 18, 2019, 8:58am UTC](https://discourse.paraview.org/t/reader-for-visualizing-overlappingamr-data/1314 "2019-02-18T08:58:51Z")

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Hi, Pardon me I am very new to AMR. I am trying to visualize overlapping AMR data using paraview. By following the tutorial, I can output two types of files: one is of the following format: \<?xml version=“1.0”?\> \<VTKF…

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## [Aerodynamic Centre of Pressure (CoP)](https://discourse.paraview.org/t/aerodynamic-centre-of-pressure-cop/1278)

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**Author:** [@1408387](https://discourse.paraview.org/u/1408387)\
**Replies:** 3\
**Last updated:** [February 18, 2019, 9:35am UTC](https://discourse.paraview.org/t/aerodynamic-centre-of-pressure-cop/1278 "2019-02-18T09:35:41Z")

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I need to calculate the centre of pressure of an aerodynamic body using Paraview, with simulations having been run successfully in OpenFOAM. This is required in order to carry out structural analysis of aerodynamic devic…

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## [Fast volume rendering of time series on GPU cluster](https://discourse.paraview.org/t/fast-volume-rendering-of-time-series-on-gpu-cluster/621)

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**Author:** [@robertsawko](https://discourse.paraview.org/u/robertsawko)\
**Replies:** 0\
**Last updated:** [September 23, 2018, 12:30pm UTC](https://discourse.paraview.org/t/fast-volume-rendering-of-time-series-on-gpu-cluster/621 "2018-09-23T12:30:20Z")

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I am playing with remote visualisation of relatively large data sets (~300GB per case, about 30 cases). Generally my objective is to accelerate post-processing tasks for me and my colleagues, but I appreciate I am still …

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## [Hide pvserver Dock icons when running Paraview with MPI on macOS](https://discourse.paraview.org/t/hide-pvserver-dock-icons-when-running-paraview-with-mpi-on-macos/1194)

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**Author:** [@lorak41](https://discourse.paraview.org/u/lorak41)\
**Replies:** 1\
**Last updated:** [February 15, 2019, 3:21pm UTC](https://discourse.paraview.org/t/hide-pvserver-dock-icons-when-running-paraview-with-mpi-on-macos/1194 "2019-02-15T15:21:23Z")

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Hi, does anyone know how to fix/remove all those icons of pvserver executable when running Paraview on macOS with MPI?

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## [Stress Graph & Shear Flow Graph & Displacement Graph in Paraview](https://discourse.paraview.org/t/stress-graph-shear-flow-graph-displacement-graph-in-paraview/1294)

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**Author:** [@Semih](https://discourse.paraview.org/u/Semih)\
**Replies:** 0\
**Last updated:** [February 14, 2019, 8:43pm UTC](https://discourse.paraview.org/t/stress-graph-shear-flow-graph-displacement-graph-in-paraview/1294 "2019-02-14T20:43:46Z")

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Hi everyone, I am interested in Post Processing of finite element analysis. I want to draw 3 graphs; Stress Graph (Cell-centered shear stress values) Shear Flow Graph (Vector of shear stress-XZ and shear stress-YZ) Di…

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## [3D plot for X,Y,Z,Temp](https://discourse.paraview.org/t/3d-plot-for-x-y-z-temp/1287)

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**Author:** [@Richard\_Kovacs](https://discourse.paraview.org/u/Richard_Kovacs)\
**Replies:** 7\
**Last updated:** [February 14, 2019, 12:52pm UTC](https://discourse.paraview.org/t/3d-plot-for-x-y-z-temp/1287 "2019-02-14T12:52:11Z")

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Dear All, I want to have a nice 3d surface (or scattered) plot for the points I have from the simulation I have. I got a CSV with all coordinate points with the relevant temperature. thanks a lot, Richard

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## [OpenGL Version](https://discourse.paraview.org/t/opengl-version/1283)

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**Author:** [@jfavre](https://discourse.paraview.org/u/jfavre)\
**Replies:** 7\
**Last updated:** [February 14, 2019, 8:41am UTC](https://discourse.paraview.org/t/opengl-version/1283 "2019-02-14T08:41:18Z")

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I am using ParaView (client only) on my desktop The Help-\>About menu reports OpenGL Version ‘3.2.0 NVIDIA 410.78’ However, if I query the same using the Python Shell: from vtk.vtkPVClientServerCoreRendering import vtk…

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## [Paraview Installation problem](https://discourse.paraview.org/t/paraview-installation-problem/1270)

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**Author:** [@martingardener](https://discourse.paraview.org/u/martingardener)\
**Replies:** 5\
**Last updated:** [February 13, 2019, 11:35am UTC](https://discourse.paraview.org/t/paraview-installation-problem/1270 "2019-02-13T11:35:34Z")

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Hi, Couldnt find an answer to this one anywhere. I installed Paraview 5.6.0 on windows 7 and when I run it the screen is just black. When I click where the menu should be it does activate drop downs and mouse-over hin…

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## [Poor GUI performance when building from source](https://discourse.paraview.org/t/poor-gui-performance-when-building-from-source/1264)

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**Author:** [@Derrick63](https://discourse.paraview.org/u/Derrick63)\
**Replies:** 5\
**Last updated:** [February 12, 2019, 8:24pm UTC](https://discourse.paraview.org/t/poor-gui-performance-when-building-from-source/1264 "2019-02-12T20:24:44Z")

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Ubuntu 16.04 Paraview 5.6 (Both release and super-build) gcc 8.1.0 qt 5.12.0 I’ve been able to build Paraview from source without any errors but when I run the program, the gui performance is very slow without even l…

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## [Artifacts and poor performance of ParaView with vtkOpenGLVolumeRayCastMapper with high values of ScalarOpacityUnitDistance](https://discourse.paraview.org/t/artifacts-and-poor-performance-of-paraview-with-vtkopenglvolumeraycastmapper-with-high-values-of-scalaropacityunitdistance/1279)

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**Author:** [@knolla](https://discourse.paraview.org/u/knolla)\
**Replies:** 0\
**Last updated:** [February 12, 2019, 6:33pm UTC](https://discourse.paraview.org/t/artifacts-and-poor-performance-of-paraview-with-vtkopenglvolumeraycastmapper-with-high-values-of-scalaropacityunitdistance/1279 "2019-02-12T18:33:37Z")

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Is there a good overview of how OpenGL 2 volume rendering in VTK is currently implemented? I’m reading through the code (e.g., vtkOpenGLGPUVolumeRayCastMapper.cxx), trying to understand performance and a few interesting…

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## [How to show vtkUnstructuredGrid in pvpython of paraview?](https://discourse.paraview.org/t/how-to-show-vtkunstructuredgrid-in-pvpython-of-paraview/1261)

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**Author:** [@weihuayi](https://discourse.paraview.org/u/weihuayi)\
**Replies:** 2\
**Last updated:** [February 11, 2019, 3:45pm UTC](https://discourse.paraview.org/t/how-to-show-vtkunstructuredgrid-in-pvpython-of-paraview/1261 "2019-02-11T15:45:45Z")

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I install paraview 5.6 on my Ubuntu 18.04 system and I want to write a python script to show a vtkUnstructuredGrid. import numpy as np from paraview.simple import \* import paraview.vtk as vtk from paraview.vtk.numpy\_int…

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## [How to eliminate the noises generated by the SurfaceLIC as attached](https://discourse.paraview.org/t/how-to-eliminate-the-noises-generated-by-the-surfacelic-as-attached/614)

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**Author:** [@thomasng](https://discourse.paraview.org/u/thomasng)\
**Replies:** 2\
**Last updated:** [February 11, 2019, 3:30pm UTC](https://discourse.paraview.org/t/how-to-eliminate-the-noises-generated-by-the-surfacelic-as-attached/614 "2019-02-11T15:30:24Z")

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Hi, anyone, It is fined to see the cool streaming generated by the Surface LIC, but the noise comes together is unlikely to visualize the data very well. Would anyone propose the way to eliminate it or provide the ex…

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