# ParaView Support

**URL:** https://discourse.paraview.org/c/paraview-support/7.md?page=128

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**Page:** 129

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## [Point cloud with dynamic opacity for each point depending on value and animated time](https://discourse.paraview.org/t/point-cloud-with-dynamic-opacity-for-each-point-depending-on-value-and-animated-time/8212)

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**Author:** [@wtfermi](https://discourse.paraview.org/u/wtfermi)\
**Replies:** 6\
**Last updated:** [October 18, 2021, 1:20pm UTC](https://discourse.paraview.org/t/point-cloud-with-dynamic-opacity-for-each-point-depending-on-value-and-animated-time/8212 "2021-10-18T13:20:53Z")

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Hi there, I have a point cloud of several thousand points with x,y,z-coordinates, time and magnitude (seismic data) and I want to generate an animation where these points seem to “appear” e.g. as sphere-glyphs (of a siz…

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## [pvpython client fails to connect to the server](https://discourse.paraview.org/t/pvpython-client-fails-to-connect-to-the-server/8202)

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**Author:** [@massisenergy](https://discourse.paraview.org/u/massisenergy)\
**Replies:** 1\
**Last updated:** [October 18, 2021, 9:18am UTC](https://discourse.paraview.org/t/pvpython-client-fails-to-connect-to-the-server/8202 "2021-10-18T09:18:25Z")

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It would be greatly helpful, for automating purposes, to add flags when launching pvpython from the shell. For example, I want to launch pvpython in shell which automatically connects to a host, such as in Paraview GUI …

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## [I need help with visualisation of CFD data](https://discourse.paraview.org/t/i-need-help-with-visualisation-of-cfd-data/8201)

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**Author:** [@vmajor](https://discourse.paraview.org/u/vmajor)\
**Replies:** 3\
**Last updated:** [October 17, 2021, 3:22pm UTC](https://discourse.paraview.org/t/i-need-help-with-visualisation-of-cfd-data/8201 "2021-10-17T15:22:12Z")

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This is an embarrassing question as I need help with remembering how I achieved this in the past. I did not use Paraview for 5 years and in that time I managed to forget my workflow. I am getting dizzy trying to remember…

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## [ParaView v5.9 lib issue - can't open GUI](https://discourse.paraview.org/t/paraview-v5-9-lib-issue-cant-open-gui/6509)

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**Author:** [@n0xn4me](https://discourse.paraview.org/u/n0xn4me)\
**Replies:** 1\
**Last updated:** [October 17, 2021, 11:37am UTC](https://discourse.paraview.org/t/paraview-v5-9-lib-issue-cant-open-gui/6509 "2021-10-17T11:37:08Z")

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This happens when I try to open ParaView (happens if I use bin/paraview and bin/paraview-real): host% /app/paraview/v5.9/ParaView-5.9.0-RC1-MPI-Linux-Python3.8-64bit/bin/paraview /app/paraview/v5.9/ParaView-5.9.0-RC1-M…

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## [Rescale to data range sometimes produces garbage bounds with XDMF HDF5 file](https://discourse.paraview.org/t/rescale-to-data-range-sometimes-produces-garbage-bounds-with-xdmf-hdf5-file/8193)

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**Author:** [@APrescott](https://discourse.paraview.org/u/APrescott)\
**Replies:** 0\
**Last updated:** [October 14, 2021, 5:37pm UTC](https://discourse.paraview.org/t/rescale-to-data-range-sometimes-produces-garbage-bounds-with-xdmf-hdf5-file/8193 "2021-10-14T17:37:59Z")

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Hello Paraview community, this is my first post! I’ve been experiencing some issues with visualizing a model output HDF5 data set using XDMF3. The problem: intermittently, the “Rescale to Data Range” tool sets the color…

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## [How to view variable in multiple files concurrently?](https://discourse.paraview.org/t/how-to-view-variable-in-multiple-files-concurrently/8182)

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**Author:** [@novak](https://discourse.paraview.org/u/novak)\
**Replies:** 2\
**Last updated:** [October 13, 2021, 9:27pm UTC](https://discourse.paraview.org/t/how-to-view-variable-in-multiple-files-concurrently/8182 "2021-10-13T21:27:45Z")

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I have 15 Exodus files that represent a heat conduction solution on 15 spheres at different locations in space. Each file contains identical sets of variables (though the variables have different values). I can load all …

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## [SaveScreenshot non-deterministically broken](https://discourse.paraview.org/t/savescreenshot-non-deterministically-broken/8180)

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**Author:** [@arthus701](https://discourse.paraview.org/u/arthus701)\
**Replies:** 1\
**Last updated:** [October 13, 2021, 2:20pm UTC](https://discourse.paraview.org/t/savescreenshot-non-deterministically-broken/8180 "2021-10-13T14:20:41Z")

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Hi everyone, I’m using paraview from python for scripting and the output of simple.SaveScreenshot is sometimes broken, as can be seen from this image: Unfortunately, this happens non-deterministically and without an…

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## [Missing "Load State Options" dialog](https://discourse.paraview.org/t/missing-load-state-options-dialog/7661)

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**Author:** [@Andrew\_Maclean](https://discourse.paraview.org/u/Andrew_Maclean)\
**Replies:** 10\
**Last updated:** [October 13, 2021, 12:23pm UTC](https://discourse.paraview.org/t/missing-load-state-options-dialog/7661 "2021-10-13T12:23:57Z")

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I am using Paraview 5.9.0 in Windows and Linux. How do I enable the “Load State Options” dialog when loading a PVSM file? Currently it just automatically loads the PVSM file so no dialog appears. I have done a “Reset to…

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## [Load siles with large spatial distance](https://discourse.paraview.org/t/load-siles-with-large-spatial-distance/8176)

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**Author:** [@marios\_geo](https://discourse.paraview.org/u/marios_geo)\
**Replies:** 8\
**Last updated:** [October 13, 2021, 12:16pm UTC](https://discourse.paraview.org/t/load-siles-with-large-spatial-distance/8176 "2021-10-13T12:16:32Z")

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I have seveal vtk files (in the order of 2-3kb) that represent boreholes over a region. The problem is that it is too slow to load. I believe the problem originates in the spatial distance. Each file (borehole) has dime…

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## [How can I extract cell IDs during point dataset interpolation process?](https://discourse.paraview.org/t/how-can-i-extract-cell-ids-during-point-dataset-interpolation-process/8175)

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**Author:** [@mkkim87](https://discourse.paraview.org/u/mkkim87)\
**Replies:** 0\
**Last updated:** [October 13, 2021, 3:04am UTC](https://discourse.paraview.org/t/how-can-i-extract-cell-ids-during-point-dataset-interpolation-process/8175 "2021-10-13T03:04:48Z")

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Hello, I use filter to interpolate scalar field data from a 3D field (VTK file) into a 2D plane grid (STL file). In this case, I think probably small amount of cells (or points) of a 3D field may be used for the inter…

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## [pvserver seg fault](https://discourse.paraview.org/t/pvserver-seg-fault/8154)

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**Author:** [@marco](https://discourse.paraview.org/u/marco)\
**Replies:** 6\
**Last updated:** [October 12, 2021, 8:31pm UTC](https://discourse.paraview.org/t/pvserver-seg-fault/8154 "2021-10-12T20:31:50Z")

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I am getting the following dump when trying to run pvserver 5.9.1 in reverse-connection mode. On the client side it appears to read the file (openfoam reader) and then if fails to render on screen getting the following. …

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## [something strange for 6 nodes triangle element](https://discourse.paraview.org/t/something-strange-for-6-nodes-triangle-element/8172)

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**Author:** [@peace](https://discourse.paraview.org/u/peace)\
**Replies:** 0\
**Last updated:** [October 12, 2021, 3:51pm UTC](https://discourse.paraview.org/t/something-strange-for-6-nodes-triangle-element/8172 "2021-10-12T15:51:24Z")

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Hi everybody, i write function to write a 6 nodes element in vtk file. But for my result there are 2 elements looks very strange. See Here is one of the strange elements, i mark it with red line. Upside is surface wi…

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## [comparative view always regenerate all filters](https://discourse.paraview.org/t/comparative-view-always-regenerate-all-filters/8164)

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**Author:** [@vavo01](https://discourse.paraview.org/u/vavo01)\
**Replies:** 0\
**Last updated:** [October 12, 2021, 7:59am UTC](https://discourse.paraview.org/t/comparative-view-always-regenerate-all-filters/8164 "2021-10-12T07:59:06Z")

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paraview version: 5.8.1 OS: linux Hi all, When using comparative view, paraview regenerates all visible filters in all frames if I change any property of any filter. E.g. if I change the solid colour of Extract Block …

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## [Paraview 5.10 won't run on Mac](https://discourse.paraview.org/t/paraview-5-10-wont-run-on-mac/8156)

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**Author:** [@michaich](https://discourse.paraview.org/u/michaich)\
**Replies:** 2\
**Last updated:** [October 11, 2021, 3:12pm UTC](https://discourse.paraview.org/t/paraview-5-10-wont-run-on-mac/8156 "2021-10-11T15:12:04Z")

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I downloaded the new Paraview 5.10 release candidate ( ParaView-5.10.0-RC1-MPI-OSX11.0-Python3.9-arm64.pkg) on my Mac. Installation was successful but I get this error message when I try to open it: You can’t open the …

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## [Paraview 5.9.1 (and pvpython) does not recognize changes made in the python script](https://discourse.paraview.org/t/paraview-5-9-1-and-pvpython-does-not-recognize-changes-made-in-the-python-script/8157)

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**Author:** [@callista](https://discourse.paraview.org/u/callista)\
**Replies:** 4\
**Last updated:** [October 11, 2021, 2:48pm UTC](https://discourse.paraview.org/t/paraview-5-9-1-and-pvpython-does-not-recognize-changes-made-in-the-python-script/8157 "2021-10-11T14:48:16Z")

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Hello, I have created a python script using the trace. The script works in python shell, pvpython and pvbatch. My problem is that I tried to modify some things within the script such as size or for example Arrow to Cone…

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## [Two axes of rotation](https://discourse.paraview.org/t/two-axes-of-rotation/8145)

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**Author:** [@Cristian24](https://discourse.paraview.org/u/Cristian24)\
**Replies:** 6\
**Last updated:** [October 11, 2021, 9:07am UTC](https://discourse.paraview.org/t/two-axes-of-rotation/8145 "2021-10-11T09:07:46Z")

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Greetings Paraview users, I am new to Paraview but I expect there is a long future in front of me. I looked hard for a clear answer but I couldn’t find any. I hope I am not asking something obvious. I simply want to r…

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## [Plotting multiple plots in a single chart in Paraview using a single .dat file](https://discourse.paraview.org/t/plotting-multiple-plots-in-a-single-chart-in-paraview-using-a-single-dat-file/8146)

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**Author:** [@Anwesha\_Varma](https://discourse.paraview.org/u/Anwesha_Varma)\
**Replies:** 1\
**Last updated:** [October 11, 2021, 8:26am UTC](https://discourse.paraview.org/t/plotting-multiple-plots-in-a-single-chart-in-paraview-using-a-single-dat-file/8146 "2021-10-11T08:26:14Z")

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I am using Paraview 5.10.0-RC1. I have a .dat file containing values for 3 variables namely “Distance”, “U\_comp”, “U\_exact”. The 1st row has values of “Distance”, the 2nd has " U\_comp" and the 3rd has “U\_exact”. I want t…

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## [Result visualisation with finite element mesh](https://discourse.paraview.org/t/result-visualisation-with-finite-element-mesh/8122)

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**Author:** [@kiennt86](https://discourse.paraview.org/u/kiennt86)\
**Replies:** 2\
**Last updated:** [October 11, 2021, 4:11am UTC](https://discourse.paraview.org/t/result-visualisation-with-finite-element-mesh/8122 "2021-10-11T04:11:34Z")

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Hi everyone, I have a 2D finite element mesh with some values at integration points. Now I want to create a iso-value map based on the values at integration point. I tried to consult the Paraview document but unfortun…

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## [Problem rendering mesh wireframe using OSPRay raycaster with transparent background](https://discourse.paraview.org/t/problem-rendering-mesh-wireframe-using-ospray-raycaster-with-transparent-background/8129)

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**Author:** [@BrunoP](https://discourse.paraview.org/u/BrunoP)\
**Replies:** 9\
**Last updated:** [October 8, 2021, 8:49pm UTC](https://discourse.paraview.org/t/problem-rendering-mesh-wireframe-using-ospray-raycaster-with-transparent-background/8129 "2021-10-08T20:49:04Z")

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Hi, I have problem when rendering mesh wireframe with transparent background using OSPRay raytracer. If image is rendered with background everything is rendered correctly, problem appears when setting transparent backgr…

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## [Issue with new Env Map/Background Toggles in 5.10-Rc1](https://discourse.paraview.org/t/issue-with-new-env-map-background-toggles-in-5-10-rc1/8139)

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**Author:** [@mconti](https://discourse.paraview.org/u/mconti)\
**Replies:** 5\
**Last updated:** [October 8, 2021, 4:26pm UTC](https://discourse.paraview.org/t/issue-with-new-env-map-background-toggles-in-5-10-rc1/8139 "2021-10-08T16:26:34Z")

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Hey guys, finally had some free time to test out the backplate/env changes in the 5.10-RC1 release, and it seems like 5.10 breaks the feature my company paid to have implemented in 5.9? Path traced environment doesn’t se…

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## [Preserve pathlines after particle is deleted](https://discourse.paraview.org/t/preserve-pathlines-after-particle-is-deleted/8141)

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**Author:** [@Veljko\_Lapcevic](https://discourse.paraview.org/u/Veljko_Lapcevic)\
**Replies:** 7\
**Last updated:** [October 8, 2021, 12:37pm UTC](https://discourse.paraview.org/t/preserve-pathlines-after-particle-is-deleted/8141 "2021-10-08T12:37:46Z")

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Hi there, I am using Temporal Particles To Pathlines filter to analyze particle trajectories over time. In one of simulations particle number is changed due to nature of simulation, this means those particles are delet…

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## [OSPray pathtracer: erratic walls](https://discourse.paraview.org/t/ospray-pathtracer-erratic-walls/7966)

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**Author:** [@bastian](https://discourse.paraview.org/u/bastian)\
**Replies:** 4\
**Last updated:** [October 8, 2021, 11:44am UTC](https://discourse.paraview.org/t/ospray-pathtracer-erratic-walls/7966 "2021-10-08T11:44:57Z")

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When batch-rendering transient data for video production using the OSPray pathtracer I frequently observe erroneous walls popping up. These are most often (but not always) aligned with the xy, the yz, or the xz-plane an…

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## [How can I use external Python script in paraview&](https://discourse.paraview.org/t/how-can-i-use-external-python-script-in-paraview/8081)

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**Author:** [@Nickola](https://discourse.paraview.org/u/Nickola)\
**Replies:** 3\
**Last updated:** [October 8, 2021, 8:51am UTC](https://discourse.paraview.org/t/how-can-i-use-external-python-script-in-paraview/8081 "2021-10-08T08:51:02Z")

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Hello everybody!What is a correct way to execute some external python script from disk? Iuse execfile(‘full\_path/script.py’) , but see ‘execfile is not found’. Where is a mistake? Where is a documentation about that? …

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## [vtk file reading with error](https://discourse.paraview.org/t/vtk-file-reading-with-error/8143)

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**Author:** [@xavier.mencaglia](https://discourse.paraview.org/u/xavier.mencaglia)\
**Replies:** 1\
**Last updated:** [October 8, 2021, 7:58am UTC](https://discourse.paraview.org/t/vtk-file-reading-with-error/8143 "2021-10-08T07:58:34Z")

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Dear, I’m in trouble with a vtk file. When I read it. I have got this message:Problème\_paraview\_alexis.txt (431.3 KB) I’m using paraview 4.3.1. Do you have an idea about the nature of this bug ? Thanks Xavier

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## [Script-based editing of ParaView-UserSettings.json](https://discourse.paraview.org/t/script-based-editing-of-paraview-usersettings-json/8137)

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**Author:** [@csniker](https://discourse.paraview.org/u/csniker)\
**Replies:** 0\
**Last updated:** [October 7, 2021, 3:43pm UTC](https://discourse.paraview.org/t/script-based-editing-of-paraview-usersettings-json/8137 "2021-10-07T15:43:38Z")

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I am trying to make a portable settings file that I can use across multiple machines instead of having to manually reset everything when I change machines. My colleague @theodorebaltis found a reasonable way of doing thi…

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## [Using Surface LIC: Attempt to get an input array for an index that has not been specified](https://discourse.paraview.org/t/using-surface-lic-attempt-to-get-an-input-array-for-an-index-that-has-not-been-specified/8032)

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**Author:** [@JulianSchl](https://discourse.paraview.org/u/JulianSchl)\
**Replies:** 5\
**Last updated:** [October 7, 2021, 11:57am UTC](https://discourse.paraview.org/t/using-surface-lic-attempt-to-get-an-input-array-for-an-index-that-has-not-been-specified/8032 "2021-10-07T11:57:34Z")

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Hi, I’m trying to vizualize the velocity field of my CFD OpenFOAM results with the LIC addon. In previous cases the visualization with LIC worked as expected. I my current case, selecting “surface LIC” in Paraview, I’…

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## [zmax from GetDataInformation().GetBounds() is wrong](https://discourse.paraview.org/t/zmax-from-getdatainformation-getbounds-is-wrong/8135)

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**Author:** [@TimJim](https://discourse.paraview.org/u/TimJim)\
**Replies:** 2\
**Last updated:** [October 7, 2021, 7:54am UTC](https://discourse.paraview.org/t/zmax-from-getdatainformation-getbounds-is-wrong/8135 "2021-10-07T07:54:51Z")

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Hi, hope I’m not missing anything simple but is there anything one should call on an object before running GetDataInformation().GetBounds() in pvpython on an object? In the GUI when you do a box clip, if you hit Reset B…

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## [Highlight points](https://discourse.paraview.org/t/highlight-points/8133)

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**Author:** [@Andrea](https://discourse.paraview.org/u/Andrea)\
**Replies:** 2\
**Last updated:** [October 7, 2021, 7:30am UTC](https://discourse.paraview.org/t/highlight-points/8133 "2021-10-07T07:30:14Z")

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Hi, Probably it is a very simple question but I have not found the answer on google or documentation. Can I highlight (putting markers) some points in paraview? I am post processing a room and I want to mark points wh…

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## [How to HDF5 + (e.g. ZFP) compressor → Paraview ... is it actually possible?](https://discourse.paraview.org/t/how-to-hdf5-e-g-zfp-compressor-paraview-is-it-actually-possible/8134)

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**Author:** [@bastian](https://discourse.paraview.org/u/bastian)\
**Replies:** 0\
**Last updated:** [October 6, 2021, 3:29pm UTC](https://discourse.paraview.org/t/how-to-hdf5-e-g-zfp-compressor-paraview-is-it-actually-possible/8134 "2021-10-06T15:29:55Z")

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Has anyone ever read lossily compressed data from an HDF5 file into ParaView? Is that possible? HDF5 provides a long list of compressors and I am particularly interested in ZFP, so writing ZFP-compressed data into an HD…

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## [xdmf HyperSlab with timesteps](https://discourse.paraview.org/t/xdmf-hyperslab-with-timesteps/5174)

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**Author:** [@firstkingofrome](https://discourse.paraview.org/u/firstkingofrome)\
**Replies:** 6\
**Last updated:** [October 6, 2021, 3:03pm UTC](https://discourse.paraview.org/t/xdmf-hyperslab-with-timesteps/5174 "2021-10-06T15:03:29Z")

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Hello, I have an hdf5 dataset containing 3 large 4d arrays for xyz components of a vector. Each array is organized by time,nx,ny,nz, so if I wanted the x velocity for the 10th timestep at (0,0,0) that would be = xVel\[9,0…

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