# ParaView Support

**URL:** https://discourse.paraview.org/c/paraview-support/7.md?page=210

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

**Page:** 211

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## [problems to animate particles from a dem based model](https://discourse.paraview.org/t/problems-to-animate-particles-from-a-dem-based-model/2000)

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**Author:** [@hgropelli](https://discourse.paraview.org/u/hgropelli)\
**Replies:** 0\
**Last updated:** [June 6, 2019, 3:37pm UTC](https://discourse.paraview.org/t/problems-to-animate-particles-from-a-dem-based-model/2000 "2019-06-06T15:37:28Z")

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Hello! im new on paraview, actually i use GiD for post processing and im doing a process to adapt my models from fortran which give gid outputs to paraview. In this simulation, the particles arent moving, they stay stat…

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## [Find Displacement Between Two Vtp Models](https://discourse.paraview.org/t/find-displacement-between-two-vtp-models/1987)

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**Author:** [@meow](https://discourse.paraview.org/u/meow)\
**Replies:** 6\
**Last updated:** [June 5, 2019, 1:00pm UTC](https://discourse.paraview.org/t/find-displacement-between-two-vtp-models/1987 "2019-06-05T13:00:34Z")

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I have two .vtp models that I have imported into paraview. The models have the same number of points. I need to find the displacement between the points in Model 1 and Model 2 and export it as a .CSV file. I can export…

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## [How embedding Python Source as Modules?](https://discourse.paraview.org/t/how-embedding-python-source-as-modules/1978)

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**Author:** [@e-kolosov](https://discourse.paraview.org/u/e-kolosov)\
**Replies:** 15\
**Last updated:** [June 5, 2019, 10:08am UTC](https://discourse.paraview.org/t/how-embedding-python-source-as-modules/1978 "2019-06-05T10:08:56Z")

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Hello. I read the instruction https://www.paraview.org/Wiki/ParaView/Plugin\_HowTo and build a simple HelloWorldRedaer but it doesn’t work. It load a dynamic library but can’t apply a HelloWorldReader reader. What I…

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## [Can only use pvbatch? when setup pvserver on linux and connect it from another windows machine by paraview GUI](https://discourse.paraview.org/t/can-only-use-pvbatch-when-setup-pvserver-on-linux-and-connect-it-from-another-windows-machine-by-paraview-gui/1989)

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**Author:** [@sharon](https://discourse.paraview.org/u/sharon)\
**Replies:** 1\
**Last updated:** [June 5, 2019, 7:21am UTC](https://discourse.paraview.org/t/can-only-use-pvbatch-when-setup-pvserver-on-linux-and-connect-it-from-another-windows-machine-by-paraview-gui/1989 "2019-06-05T07:21:28Z")

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Dear Experts, I want to set client-server mode in linux-window machine. However, when i launch pvserver on linux, it is always failed connection when try to connect server from another window machine by paraview GUI, an…

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## [how can I output the coordinates of the faces of a wireframe?](https://discourse.paraview.org/t/how-can-i-output-the-coordinates-of-the-faces-of-a-wireframe/1960)

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**Author:** [@fabio.romani](https://discourse.paraview.org/u/fabio.romani)\
**Replies:** 4\
**Last updated:** [June 4, 2019, 3:29pm UTC](https://discourse.paraview.org/t/how-can-i-output-the-coordinates-of-the-faces-of-a-wireframe/1960 "2019-06-04T15:29:17Z")

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Hi, I can’t seem to find a way to print the coordinates of each face forming the mesh (wireframe) on my polygon. Is there an easy script to write a text file (or even output on the screen) that does that? Thanks Fabio …

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## [Unable to clip properly for volume rendered visualization](https://discourse.paraview.org/t/unable-to-clip-properly-for-volume-rendered-visualization/1951)

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**Author:** [@opliew13](https://discourse.paraview.org/u/opliew13)\
**Replies:** 2\
**Last updated:** [June 3, 2019, 4:56pm UTC](https://discourse.paraview.org/t/unable-to-clip-properly-for-volume-rendered-visualization/1951 "2019-06-03T16:56:06Z")

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Hi, I have a python script that is supposed to do a box clip on a volume rendered image, but the clipping seems wrong and I’m not sure how to fix it. I copied my code into ParaView and ran it in the Python shell and it…

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## [OSPray rendering with pvserver](https://discourse.paraview.org/t/ospray-rendering-with-pvserver/1954)

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**Author:** [@Daan\_van\_Vugt](https://discourse.paraview.org/u/Daan_van_Vugt)\
**Replies:** 2\
**Last updated:** [June 3, 2019, 1:28pm UTC](https://discourse.paraview.org/t/ospray-rendering-with-pvserver/1954 "2019-06-03T13:28:25Z")

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Hi, I’m trying to render images with OSPRay on a KNL machine through pvserver (OSmesa superbuild of PV). I can connect fine, and images show up but it seems they are ray-traced locally. Is there a way to setup the rayt…

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## [Plot V.Misses stress over time](https://discourse.paraview.org/t/plot-v-misses-stress-over-time/1948)

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**Author:** [@Sergio\_Pluchinsky](https://discourse.paraview.org/u/Sergio_Pluchinsky)\
**Replies:** 1\
**Last updated:** [June 3, 2019, 12:51pm UTC](https://discourse.paraview.org/t/plot-v-misses-stress-over-time/1948 "2019-06-03T12:51:05Z")

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COMPRESION.pvsm (292.4 KB) COMPRESION.rmed (2.4 MB) Hi, I have an .rmed file of a no lineal static analisys (solver was Calculix, results were converted from .frd using Calmed), were I can show the V. Misses stress, an…

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## [How to choose the time step to be processed in a python script](https://discourse.paraview.org/t/how-to-choose-the-time-step-to-be-processed-in-a-python-script/1969)

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**Author:** [@Emanuele\_Leggio](https://discourse.paraview.org/u/Emanuele_Leggio)\
**Replies:** 2\
**Last updated:** [June 3, 2019, 12:41pm UTC](https://discourse.paraview.org/t/how-to-choose-the-time-step-to-be-processed-in-a-python-script/1969 "2019-06-03T12:41:01Z")

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Hi all, I’ve written several scripts that open XMF files and processing them creates other entities that are saved to disk. I have worked with XMF files that contain only one time-step, now I would like to switch to tem…

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## [Make camera "Follow Path" follow an already defined path](https://discourse.paraview.org/t/make-camera-follow-path-follow-an-already-defined-path/1970)

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**Author:** [@daviddoria](https://discourse.paraview.org/u/daviddoria)\
**Replies:** 2\
**Last updated:** [May 31, 2019, 4:29pm UTC](https://discourse.paraview.org/t/make-camera-follow-path-follow-an-already-defined-path/1970 "2019-05-31T16:29:13Z")

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Hi guys, In the Animation view, when I add a ‘Camera - Follow Path’ it lets me create a spline that the camera will follow. However, I already have a spline in the Pipeline Browser - can I just tell the camera to follow…

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## [When using python script, screenshot records blank](https://discourse.paraview.org/t/when-using-python-script-screenshot-records-blank/1915)

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**Author:** [@wl032](https://discourse.paraview.org/u/wl032)\
**Replies:** 6\
**Last updated:** [May 31, 2019, 4:04pm UTC](https://discourse.paraview.org/t/when-using-python-script-screenshot-records-blank/1915 "2019-05-31T16:04:13Z")

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My purpose is to do some batch processing, and take screen shots. Here is the script. #### import the simple module from the paraview from paraview.simple import \* #### disable automatic camera reset on 'Show' paraview…

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## [Loading large VTK files](https://discourse.paraview.org/t/loading-large-vtk-files/1941)

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**Author:** [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)\
**Replies:** 2\
**Last updated:** [May 31, 2019, 12:47pm UTC](https://discourse.paraview.org/t/loading-large-vtk-files/1941 "2019-05-31T12:47:33Z")

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Continuing the discussion from Define an arbitrary line: This is a separate topic from the original discussion, so I split it into a new one. 100M+ elements is fairly for serial processing. Are your data files stored …

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## [Issues about .pvd file](https://discourse.paraview.org/t/issues-about-pvd-file/1930)

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**Author:** [@wl032](https://discourse.paraview.org/u/wl032)\
**Replies:** 4\
**Last updated:** [May 31, 2019, 9:23am UTC](https://discourse.paraview.org/t/issues-about-pvd-file/1930 "2019-05-31T09:23:01Z")

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Hello, I produced a bunch of .vtu files, and all these guys work well. Now, I need to link them in time sequence. My .pvd file looks like this. \<?xml version="1.0"?\> \<VTKFile type="Collection" version="0.1" byte\_order…

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## [error in brigand.hpp VTKm](https://discourse.paraview.org/t/error-in-brigand-hpp-vtkm/1953)

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**Author:** [@uturuncoglu](https://discourse.paraview.org/u/uturuncoglu)\
**Replies:** 7\
**Last updated:** [May 31, 2019, 6:26am UTC](https://discourse.paraview.org/t/error-in-brigand-hpp-vtkm/1953 "2019-05-31T06:26:22Z")

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Hi, When I try to build ParaView 5.6.0 from source, I am getting following error related with VTKm. Is it known problem? If yes, is there any fix for it? \[ 14%\] Building CUDA object VTK/ThirdParty/vtkm/vtk-m/vtkm/cont/…

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## [Can I hide selected cells?](https://discourse.paraview.org/t/can-i-hide-selected-cells/1972)

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**Author:** [@yw5aj](https://discourse.paraview.org/u/yw5aj)\
**Replies:** 2\
**Last updated:** [May 31, 2019, 12:53am UTC](https://discourse.paraview.org/t/can-i-hide-selected-cells/1972 "2019-05-31T00:53:54Z")

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Dear all, In the GUI, I am using Paraview to show a VTK file of a mesh consisting of tetrahedrons. Is there a way that I can hide selected cells? For example, can I change the display alpha of the selected cells? Best, …

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## [Assemblies](https://discourse.paraview.org/t/assemblies/1971)

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**Author:** [@wascott](https://discourse.paraview.org/u/wascott)\
**Replies:** 0\
**Last updated:** [May 30, 2019, 5:46pm UTC](https://discourse.paraview.org/t/assemblies/1971 "2019-05-30T17:46:43Z")

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On the Exodus reader page, next to Blocks, is listed Assemblies. What are these, and how are they used?

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## [Cannot Fetch AMR Arrays](https://discourse.paraview.org/t/cannot-fetch-amr-arrays/1927)

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**Author:** [@theodorebaltis](https://discourse.paraview.org/u/theodorebaltis)\
**Replies:** 1\
**Last updated:** [May 28, 2019, 2:25pm UTC](https://discourse.paraview.org/t/cannot-fetch-amr-arrays/1927 "2019-05-28T14:25:54Z")

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Hello. I am trying to fetch data from an AMR dataset, but find that this process doesn’t include the point or cell arrays. When I check the data arrays I see that I only have one cell array for “vtkGhostType”. I’ve gon…

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## [Rendering CML files with OSPRay](https://discourse.paraview.org/t/rendering-cml-files-with-ospray/1890)

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**Author:** [@mariavd](https://discourse.paraview.org/u/mariavd)\
**Replies:** 1\
**Last updated:** [May 28, 2019, 1:59pm UTC](https://discourse.paraview.org/t/rendering-cml-files-with-ospray/1890 "2019-05-28T13:59:30Z")

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Hello, I have been using CML format to render molecules in Paraview and do further visual analyses of quantum chemistry data, such as using the Stream Tracer. I recently learned that OSPRay is supposed to be more effici…

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## [Projecting CFD results into a FEM mesh](https://discourse.paraview.org/t/projecting-cfd-results-into-a-fem-mesh/1938)

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**Author:** [@Msegade](https://discourse.paraview.org/u/Msegade)\
**Replies:** 2\
**Last updated:** [May 28, 2019, 11:09am UTC](https://discourse.paraview.org/t/projecting-cfd-results-into-a-fem-mesh/1938 "2019-05-28T11:09:25Z")

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Hi I have some results from a CFD analysis and I want to project (I’m not sure of the right term map, interpolate?) the pressure values available at nodes to pressure values in each element for the FEM mesh. The meshes …

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## [Which python version is the recommended for latest paraview on github?](https://discourse.paraview.org/t/which-python-version-is-the-recommended-for-latest-paraview-on-github/1933)

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**Author:** [@sharon](https://discourse.paraview.org/u/sharon)\
**Replies:** 2\
**Last updated:** [May 28, 2019, 8:37am UTC](https://discourse.paraview.org/t/which-python-version-is-the-recommended-for-latest-paraview-on-github/1933 "2019-05-28T08:37:01Z")

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Dear Experts, To build and run paraview with python, i want to know which python version is the recommended? Thanks and Best Regards, Sharon

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## [Interactive select points in 2D](https://discourse.paraview.org/t/interactive-select-points-in-2d/1904)

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**Author:** [@mzenker](https://discourse.paraview.org/u/mzenker)\
**Replies:** 6\
**Last updated:** [May 28, 2019, 8:25am UTC](https://discourse.paraview.org/t/interactive-select-points-in-2d/1904 "2019-05-28T08:25:43Z")

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Hi, I have a (hopefully) simple question: I visualize a 2D vtu data set (result of a simulation with Elmer) and want to select one or several points. My 2D geometry is in the xy plane, and I view it with the “-z” view. …

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## [paraview map velocity field to surface](https://discourse.paraview.org/t/paraview-map-velocity-field-to-surface/1919)

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**Author:** [@Arghavanizad](https://discourse.paraview.org/u/Arghavanizad)\
**Replies:** 2\
**Last updated:** [May 24, 2019, 7:20pm UTC](https://discourse.paraview.org/t/paraview-map-velocity-field-to-surface/1919 "2019-05-24T19:20:05Z")

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Hi All, I am new in paraview and I want to map velocity field to the surface, does anyone can help me? best, Arghavan

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## [Export Scene Error Message](https://discourse.paraview.org/t/export-scene-error-message/1925)

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**Author:** [@samella](https://discourse.paraview.org/u/samella)\
**Replies:** 1\
**Last updated:** [May 24, 2019, 5:25pm UTC](https://discourse.paraview.org/t/export-scene-error-message/1925 "2019-05-24T17:25:44Z")

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Hi! I’m just trying to export a graphic on a pdf format and I keep getting this error messages: ERROR: In C:\\bbd\\7cc78367\\build\\superbuild\\paraview\\src\\VTK\\IO\\ExportOpenGL2\\vtkOpenGLGL2PSExporter.cxx, line 70 vtkPVGL2P…

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## [Save specific field data](https://discourse.paraview.org/t/save-specific-field-data/1921)

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**Author:** [@lorak41](https://discourse.paraview.org/u/lorak41)\
**Replies:** 2\
**Last updated:** [May 24, 2019, 11:38am UTC](https://discourse.paraview.org/t/save-specific-field-data/1921 "2019-05-24T11:38:27Z")

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Hi, I have a vtk file that has many fields (data points, attributes). What is the best way to save this file with only one field, lets say called “Pressure”? Or is there a way to delete Attributes / Fields? Cheers

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## [from mpi4py import MPI ImportError: No module named mpi4py](https://discourse.paraview.org/t/from-mpi4py-import-mpi-importerror-no-module-named-mpi4py/1916)

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**Author:** [@hdz19900725](https://discourse.paraview.org/u/hdz19900725)\
**Replies:** 5\
**Last updated:** [May 24, 2019, 9:43am UTC](https://discourse.paraview.org/t/from-mpi4py-import-mpi-importerror-no-module-named-mpi4py/1916 "2019-05-24T09:43:08Z")

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Hello, I have a question that when I use find data in paraview and my settings are as follows: When I click Run Selection Query, the Output message dialog looks lile this: I use paraview 5.6 mpi version, does anyo…

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## [Field Data in Paraview Spreadsheet View](https://discourse.paraview.org/t/field-data-in-paraview-spreadsheet-view/1911)

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**Author:** [@siver](https://discourse.paraview.org/u/siver)\
**Replies:** 5\
**Last updated:** [May 24, 2019, 8:35am UTC](https://discourse.paraview.org/t/field-data-in-paraview-spreadsheet-view/1911 "2019-05-24T08:35:09Z")

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Dear devs, I have the following problem: Paraview 5.6.0 does not show Field Data in the “SpreadSheet view”, stored within a vtm file. They are vtkFloatArray’s with proper names. What are possible reasons for this and ho…

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## [compile a reader plugin using HDF5](https://discourse.paraview.org/t/compile-a-reader-plugin-using-hdf5/1864)

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**Author:** [@jfavre](https://discourse.paraview.org/u/jfavre)\
**Replies:** 6\
**Last updated:** [May 23, 2019, 3:04pm UTC](https://discourse.paraview.org/t/compile-a-reader-plugin-using-hdf5/1864 "2019-05-23T15:04:26Z")

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in my reader plugin, I include \<vtk\_hdf5.h\> At compilation time, it does find vtk\_hdf5.h, but it fails on finding H5pubconf.h which is located in my $INSTALL\_PATH/include/paraview-5.6/vtkhdf5 /local/apps/ParaView/dev/i…

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## [import time varient data](https://discourse.paraview.org/t/import-time-varient-data/1906)

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**Author:** [@kelseymcelwain](https://discourse.paraview.org/u/kelseymcelwain)\
**Replies:** 0\
**Last updated:** [May 22, 2019, 4:18pm UTC](https://discourse.paraview.org/t/import-time-varient-data/1906 "2019-05-22T16:18:37Z")

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I am trying to plot pressure change measured by a gauge, so just at one point, as time goes on. I have the data in excel saved as CSV, one column for time, and the other for pressure. Can I import the time data column or…

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## [Limiting streamlines - Surface LIC](https://discourse.paraview.org/t/limiting-streamlines-surface-lic/1903)

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**Author:** [@romina](https://discourse.paraview.org/u/romina)\
**Replies:** 1\
**Last updated:** [May 22, 2019, 3:38pm UTC](https://discourse.paraview.org/t/limiting-streamlines-surface-lic/1903 "2019-05-22T15:38:50Z")

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Hi, I am completely new to Paraview, so apologies in advance if the question is trivial. I would like to view streamlines from the WSS vector on a 3D surface. I have the 3D mesh (in stl), and a data file of 6 columns w…

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## [Issues with Load State using a Custom Reader](https://discourse.paraview.org/t/issues-with-load-state-using-a-custom-reader/1259)

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**Author:** [@theodorebaltis](https://discourse.paraview.org/u/theodorebaltis)\
**Replies:** 9\
**Last updated:** [May 22, 2019, 3:12pm UTC](https://discourse.paraview.org/t/issues-with-load-state-using-a-custom-reader/1259 "2019-05-22T15:12:56Z")

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Hello, I’ve created a custom reader using the VTKPythonAlgorithm (ParaView 5.6.0) that takes in .xmf files and does some extra data manipulation to the MBDS before it gets passed down the pipeline. It seems to work whe…

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