# ParaView Support

**URL:** https://discourse.paraview.org/c/paraview-support/7.md?page=148

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**Page:** 149

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## [fix timesteps (round time up)](https://discourse.paraview.org/t/fix-timesteps-round-time-up/6792)

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**Author:** [@ebreard](https://discourse.paraview.org/u/ebreard)\
**Replies:** 2\
**Last updated:** [March 25, 2021, 5:35pm UTC](https://discourse.paraview.org/t/fix-timesteps-round-time-up/6792 "2021-03-25T17:35:16Z")

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Hi, I have two layers, one has timesteps 0.01, 0.02 0.03 s etc because I used the temporalshiftscale filter. The other layers has time embedded (read vtp) but the timesteps are 0.0100001, 0.02000035, 0.03000048 s for i…

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## [How do I setup a camera that follows a specific path?](https://discourse.paraview.org/t/how-do-i-setup-a-camera-that-follows-a-specific-path/6796)

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**Author:** [@zhouzr96](https://discourse.paraview.org/u/zhouzr96)\
**Replies:** 4\
**Last updated:** [March 25, 2021, 4:16pm UTC](https://discourse.paraview.org/t/how-do-i-setup-a-camera-that-follows-a-specific-path/6796 "2021-03-25T16:16:54Z")

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Hi all, I’m new to this software. Right now I’m using paraview 5.9. I have an object and it’s moving in y axis with varing speed. How can I set up a camera to trace it? I’ve tried adding a camera that would follow the d…

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## [glTF exporter - Opacity value not exported](https://discourse.paraview.org/t/gltf-exporter-opacity-value-not-exported/6555)

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**Author:** [@leopessanha](https://discourse.paraview.org/u/leopessanha)\
**Replies:** 8\
**Last updated:** [March 25, 2021, 2:10pm UTC](https://discourse.paraview.org/t/gltf-exporter-opacity-value-not-exported/6555 "2021-03-25T14:10:49Z")

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Hi, I’ve exported a scene in ParaView using the glTF extension. The scene contains a vtkStructureGrid, colored by a scalar and with 0.35 value for opacity. When loading the data in the destiny application(CesiumJS) the…

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## [Weird plot over line formatting | ParaView 5.9 on Ubuntu 20.04](https://discourse.paraview.org/t/weird-plot-over-line-formatting-paraview-5-9-on-ubuntu-20-04/6780)

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**Author:** [@vachan-potluri](https://discourse.paraview.org/u/vachan-potluri)\
**Replies:** 5\
**Last updated:** [March 25, 2021, 2:00pm UTC](https://discourse.paraview.org/t/weird-plot-over-line-formatting-paraview-5-9-on-ubuntu-20-04/6780 "2021-03-25T14:00:29Z")

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Hi, I have ParaView 5.9 binary installation on Ubuntu 20.04. Strangely, the entire plot over line window uses dotted lines alone, even for text. I have attached a screenshot for reference. Is this an issue of depende…

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## [How use python to get the ID of a selected point？](https://discourse.paraview.org/t/how-use-python-to-get-the-id-of-a-selected-point/6782)

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**Author:** [@jone](https://discourse.paraview.org/u/jone)\
**Replies:** 1\
**Last updated:** [March 25, 2021, 2:56am UTC](https://discourse.paraview.org/t/how-use-python-to-get-the-id-of-a-selected-point/6782 "2021-03-25T02:56:21Z")

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Currently I can use SelectSurfacePoints to highlight a point. So how do I get the ID or the coordinates of this point? I found that Edit-Find Data can get information about the select point, but I don’t know how to do t…

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## [Which filter to be applied for seeing time evolution of a dot in a 1D domain](https://discourse.paraview.org/t/which-filter-to-be-applied-for-seeing-time-evolution-of-a-dot-in-a-1d-domain/6775)

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**Author:** [@Kaa](https://discourse.paraview.org/u/Kaa)\
**Replies:** 2\
**Last updated:** [March 24, 2021, 6:59pm UTC](https://discourse.paraview.org/t/which-filter-to-be-applied-for-seeing-time-evolution-of-a-dot-in-a-1d-domain/6775 "2021-03-24T18:59:04Z")

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Hi, I have pp concentrations in a x=(-50,50) a 1 dimensional domain over t=(0,150) at pp.pvd file, I want to see the value of pp at the x=0 point overtime, the time evolution. Finally my aim is to attain a “pp(0) vs t”…

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## [Error on running trace from the CMD interface.](https://discourse.paraview.org/t/error-on-running-trace-from-the-cmd-interface/6786)

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**Author:** [@Sounak\_Majumder](https://discourse.paraview.org/u/Sounak_Majumder)\
**Replies:** 0\
**Last updated:** [March 24, 2021, 12:09pm UTC](https://discourse.paraview.org/t/error-on-running-trace-from-the-cmd-interface/6786 "2021-03-24T12:09:51Z")

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Hello everyone, I created a basic trace which creates a sphere with a simple half-plane clip. The trace runs fine with the python shell within the GUI framework. However, when I try to run the file using PvPython as ins…

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## [How to perform actor selection from Python?](https://discourse.paraview.org/t/how-to-perform-actor-selection-from-python/6778)

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**Author:** [@jone](https://discourse.paraview.org/u/jone)\
**Replies:** 0\
**Last updated:** [March 24, 2021, 12:43am UTC](https://discourse.paraview.org/t/how-to-perform-actor-selection-from-python/6778 "2021-03-24T00:43:17Z")

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I know that we can select point and cell at present, so how to pick an actor? Just like VTK’s proppick did. But I can’t find this interface in simple or selection. If you know how, can you let me know? Thank you very muc…

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## [ParaviewWeb selection error](https://discourse.paraview.org/t/paraviewweb-selection-error/6733)

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**Author:** [@jone](https://discourse.paraview.org/u/jone)\
**Replies:** 5\
**Last updated:** [March 23, 2021, 3:16pm UTC](https://discourse.paraview.org/t/paraviewweb-selection-error/6733 "2021-03-23T15:16:31Z")

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I want to pick a cell on the client side.First, I get the position of the mouse click on the canvas, using the following methods: var rect = canvas.getBoundingClientRect(); var x= event.clientX - rect.left \* (canvas.w…

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## [Need to remove unwanted boundary](https://discourse.paraview.org/t/need-to-remove-unwanted-boundary/6740)

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**Author:** [@Dinushika1992](https://discourse.paraview.org/u/Dinushika1992)\
**Replies:** 3\
**Last updated:** [March 23, 2021, 2:40pm UTC](https://discourse.paraview.org/t/need-to-remove-unwanted-boundary/6740 "2021-03-23T14:40:59Z")

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Hi, I’m using the Lattice Boltzmann method to simulate blood flow. Here’s the flow channel I’d like to create. However, after the simulation, I get something like this. It has an unwanted boundary. Could you pleas…

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## [Temporal Interpolator Filter Removes Time Steps](https://discourse.paraview.org/t/temporal-interpolator-filter-removes-time-steps/6768)

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**Author:** [@R.B](https://discourse.paraview.org/u/R.B)\
**Replies:** 2\
**Last updated:** [March 23, 2021, 1:15pm UTC](https://discourse.paraview.org/t/temporal-interpolator-filter-removes-time-steps/6768 "2021-03-23T13:15:51Z")

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Hello, I’m have a time variant data set that I want to apply Temporal Interpolator Filter on to make it smoother. When I apply the filter the time steps get removed from the ParaView time bar. I want to be able to save…

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## [vtkCommonCorePython missing error in python3-paraview on Ubuntu 20](https://discourse.paraview.org/t/vtkcommoncorepython-missing-error-in-python3-paraview-on-ubuntu-20/5452)

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**Author:** [@johnr](https://discourse.paraview.org/u/johnr)\
**Replies:** 3\
**Last updated:** [March 23, 2021, 10:56am UTC](https://discourse.paraview.org/t/vtkcommoncorepython-missing-error-in-python3-paraview-on-ubuntu-20/5452 "2021-03-23T10:56:40Z")

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I’m trying to use paraview scripting within python3 for Ubuntu 20.04.1 LTS. If I open python3 on the command line I get the error $\> python3 Python 3.8.2 (default, Jul 16 2020, 14:00:26) \[GCC 9.3.0\] on linux Type “he…

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## [integration time in streamline datasheet](https://discourse.paraview.org/t/integration-time-in-streamline-datasheet/6757)

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**Author:** [@mohammad\_faghih](https://discourse.paraview.org/u/mohammad_faghih)\
**Replies:** 3\
**Last updated:** [March 22, 2021, 8:09pm UTC](https://discourse.paraview.org/t/integration-time-in-streamline-datasheet/6757 "2021-03-22T20:09:34Z")

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When we generate some streamlines in paraview and export the spreadsheet out, one column is the Integration Time. I want to know how I can control this? I may need to increase or decrease resolution of the streamlines a…

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## [Multiple Probe locations](https://discourse.paraview.org/t/multiple-probe-locations/6665)

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**Author:** [@rmhkmm4](https://discourse.paraview.org/u/rmhkmm4)\
**Replies:** 4\
**Last updated:** [March 22, 2021, 6:37pm UTC](https://discourse.paraview.org/t/multiple-probe-locations/6665 "2021-03-22T18:37:50Z")

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Hi there! I am attempting to take data from various simulations performed on Simscale and use the probe feature in ParaView to obtain strain values at 5 strain sites, 72 points each. I have a list of all of the coordin…

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## [How to indicate to Paraview that it should visualise .vtu file as height, longitude, and latitude?](https://discourse.paraview.org/t/how-to-indicate-to-paraview-that-it-should-visualise-vtu-file-as-height-longitude-and-latitude/6766)

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**Author:** [@Jenkins](https://discourse.paraview.org/u/Jenkins)\
**Replies:** 0\
**Last updated:** [March 22, 2021, 4:17pm UTC](https://discourse.paraview.org/t/how-to-indicate-to-paraview-that-it-should-visualise-vtu-file-as-height-longitude-and-latitude/6766 "2021-03-22T16:17:34Z")

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Hi there, I am trying to visualise my r, theta, phi simulations within ParaView. Previously, we have done this by using the netCDF files that adhere to the CF convention and as such ParaView responds to the height, long…

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## [Problem with creating a good streamline plot](https://discourse.paraview.org/t/problem-with-creating-a-good-streamline-plot/6751)

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**Author:** [@paraviwer](https://discourse.paraview.org/u/paraviwer)\
**Replies:** 2\
**Last updated:** [March 22, 2021, 11:42am UTC](https://discourse.paraview.org/t/problem-with-creating-a-good-streamline-plot/6751 "2021-03-22T11:42:51Z")

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I have a 2D axisymmetric model of a very small jet coming into a stagnant domain. The solution has been loaded in Paraview and I got a good plot with the vector fields. But when I try to add streamlines nothing seems to …

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## [Where to put example visualization files?](https://discourse.paraview.org/t/where-to-put-example-visualization-files/6753)

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**Author:** [@Andythe\_great](https://discourse.paraview.org/u/Andythe_great)\
**Replies:** 1\
**Last updated:** [March 22, 2021, 11:38am UTC](https://discourse.paraview.org/t/where-to-put-example-visualization-files/6753 "2021-03-22T11:38:37Z")

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Hello, I want to bundle example visualization examples to Paraview. I download ParaViewTestingDataFiles-v5.9.0.tar.gz. I unpack everything to share/paraview-5.9/examples. However, it error looking for disk\_out\_ref.ex…

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## [How to overcome "Failed to load vtkClientServerPython"?](https://discourse.paraview.org/t/how-to-overcome-failed-to-load-vtkclientserverpython/6760)

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**Author:** [@rasunag27](https://discourse.paraview.org/u/rasunag27)\
**Replies:** 0\
**Last updated:** [March 22, 2021, 9:38am UTC](https://discourse.paraview.org/t/how-to-overcome-failed-to-load-vtkclientserverpython/6760 "2021-03-22T09:38:19Z")

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Dear all, I have to run some paraview trace file in python to automate the process. For this, I imported paraview as: from paraview.simple import \* But, it is showing me an error as “Failed to load vtkClientServer…

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## [How to plot only some selected meshes?](https://discourse.paraview.org/t/how-to-plot-only-some-selected-meshes/6754)

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**Author:** [@maryha](https://discourse.paraview.org/u/maryha)\
**Replies:** 0\
**Last updated:** [March 21, 2021, 2:38pm UTC](https://discourse.paraview.org/t/how-to-plot-only-some-selected-meshes/6754 "2021-03-21T14:38:43Z")

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Hello everyone, I have used the Finite Element Method to solve my 2D elasticity model using Fenics, and exported my data using “.pvd” files. Now, I want to show the deformed shape of meshes over my domain using Paraview…

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## [Make a Clip filter with Cylinder Clip Type follow a data set](https://discourse.paraview.org/t/make-a-clip-filter-with-cylinder-clip-type-follow-a-data-set/6737)

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**Author:** [@Tarik\_Hadzovic](https://discourse.paraview.org/u/Tarik_Hadzovic)\
**Replies:** 0\
**Last updated:** [March 18, 2021, 2:52pm UTC](https://discourse.paraview.org/t/make-a-clip-filter-with-cylinder-clip-type-follow-a-data-set/6737 "2021-03-18T14:52:58Z")

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I have a SPH(Smoothed Particle Hydrodynamics) simulation of planetary gearset lubrication. In this simulation both fluid and solids are represented as particles. Since I want to make analysis of how much oil is there in …

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## [How Can I make line plot in a close box?](https://discourse.paraview.org/t/how-can-i-make-line-plot-in-a-close-box/6735)

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**Author:** [@chaoqiang\_xi](https://discourse.paraview.org/u/chaoqiang_xi)\
**Replies:** 0\
**Last updated:** [March 18, 2021, 11:50am UTC](https://discourse.paraview.org/t/how-can-i-make-line-plot-in-a-close-box/6735 "2021-03-18T11:50:23Z")

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How can I amke the line plot in a close box, like the red box in the below figure?

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## [Using programmable filter to get time averaged values](https://discourse.paraview.org/t/using-programmable-filter-to-get-time-averaged-values/6719)

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**Author:** [@Teekay](https://discourse.paraview.org/u/Teekay)\
**Replies:** 1\
**Last updated:** [March 17, 2021, 11:49pm UTC](https://discourse.paraview.org/t/using-programmable-filter-to-get-time-averaged-values/6719 "2021-03-17T23:49:42Z")

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Dear all, I have a question that is about post-processing using Paraview to extract time-averaged values. For my simulations (using fenics) of flow in the human aorta I am currently calculating the instantaneous wall s…

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## [ParaView state file and automatic updating of the pipeline](https://discourse.paraview.org/t/paraview-state-file-and-automatic-updating-of-the-pipeline/6724)

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**Author:** [@Andy\_Bauer](https://discourse.paraview.org/u/Andy_Bauer)\
**Replies:** 0\
**Last updated:** [March 16, 2021, 7:54pm UTC](https://discourse.paraview.org/t/paraview-state-file-and-automatic-updating-of-the-pipeline/6724 "2021-03-16T19:54:51Z")

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Hi, Would it be possible to have the option to not automatically update the pipeline when loading the .pvsm state file in either the GUI or from Python? I’m just thinking that if a user wanted to tweak something in the …

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## [Low rendering resolution in Layout - Windows 10](https://discourse.paraview.org/t/low-rendering-resolution-in-layout-windows-10/6722)

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**Author:** [@zstyle](https://discourse.paraview.org/u/zstyle)\
**Replies:** 0\
**Last updated:** [March 16, 2021, 6:54pm UTC](https://discourse.paraview.org/t/low-rendering-resolution-in-layout-windows-10/6722 "2021-03-16T18:54:26Z")

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In OpenFOAM I am running a model that looks at the cooling down of an ellipse in a volume of water. After I open the model in Paraview the rendering resolution in the Layout box is not smooth and changes as I reorient t…

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## [Values for viridis colormap do not correspond to those in matplotlib?](https://discourse.paraview.org/t/values-for-viridis-colormap-do-not-correspond-to-those-in-matplotlib/6635)

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**Author:** [@stefanv](https://discourse.paraview.org/u/stefanv)\
**Replies:** 8\
**Last updated:** [March 16, 2021, 5:47pm UTC](https://discourse.paraview.org/t/values-for-viridis-colormap-do-not-correspond-to-those-in-matplotlib/6635 "2021-03-16T17:47:18Z")

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I recently came across byte-values for the viridis colormap on Kenneth Morland’s site. These didn’t correspond to the ones in Matplotlib (the original values), and when I asked Kenneth where he got his values he said fr…

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## [How to get a single object or some in paraview python?](https://discourse.paraview.org/t/how-to-get-a-single-object-or-some-in-paraview-python/6715)

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**Author:** [@jone](https://discourse.paraview.org/u/jone)\
**Replies:** 1\
**Last updated:** [March 16, 2021, 3:58pm UTC](https://discourse.paraview.org/t/how-to-get-a-single-object-or-some-in-paraview-python/6715 "2021-03-16T15:58:50Z")

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I rendered some data on the server side in python, like this: \> reader = simple.OpenDataFile('xxx.obj') \> simple.Show(reader) \> simple.Render() And I want to customize some protocols such as pick or clip one of the o…

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## [Build problem: 'vtkm::tbb-NOTFOUND'](https://discourse.paraview.org/t/build-problem-vtkm-tbb-notfound/6659)

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**Author:** [@gfield](https://discourse.paraview.org/u/gfield)\
**Replies:** 12\
**Last updated:** [March 16, 2021, 2:05pm UTC](https://discourse.paraview.org/t/build-problem-vtkm-tbb-notfound/6659 "2021-03-16T14:05:21Z")

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Hello! I’m trying to build ParaView on Ubuntu 20.04 LTS. I’ve followed the instructions on https://github.com/Kitware/ParaView/blob/master/Documentation/dev/build.md After sucessfully (?) setting things up with cmake, …

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## [Update Time Step with Python programmable source](https://discourse.paraview.org/t/update-time-step-with-python-programmable-source/6717)

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**Author:** [@stevenrend](https://discourse.paraview.org/u/stevenrend)\
**Replies:** 0\
**Last updated:** [March 16, 2021, 1:49pm UTC](https://discourse.paraview.org/t/update-time-step-with-python-programmable-source/6717 "2021-03-16T13:49:52Z")

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Dear all, I want to display 3D Time varying data in Paraview. I partially succeded to do it thanks to the simplified code below : ReqDataScript = """ import numpy as np import h5py import glob, os path …

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## [threshold filter "removes" points above minimum threshold limit](https://discourse.paraview.org/t/threshold-filter-removes-points-above-minimum-threshold-limit/6711)

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**Author:** [@fabio.romani](https://discourse.paraview.org/u/fabio.romani)\
**Replies:** 4\
**Last updated:** [March 16, 2021, 9:19am UTC](https://discourse.paraview.org/t/threshold-filter-removes-points-above-minimum-threshold-limit/6711 "2021-03-16T09:19:08Z")

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Hi, I have a pretty big vtk file I’m importing into paraview with points organized in a mesh where every vertex contains info about a current density. The current density goes from 0 to 4.9e9. When I use the Threshold…

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## [Orientation Axes / Element Axes (glyphs) Synch. Issue](https://discourse.paraview.org/t/orientation-axes-element-axes-glyphs-synch-issue/6675)

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**Author:** [@windy\_concrete](https://discourse.paraview.org/u/windy_concrete)\
**Replies:** 1\
**Last updated:** [March 15, 2021, 9:18pm UTC](https://discourse.paraview.org/t/orientation-axes-element-axes-glyphs-synch-issue/6675 "2021-03-15T21:18:22Z")

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Greetings - I am running pvbatch to produce some simple plots of shell element local axes (3-glyphs) on a non-structured planar mesh (z=0). My batch file gets the orientation axes / glyphs axes alignment correct on the i…

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