# ParaView Support

**URL:** https://discourse.paraview.org/c/paraview-support/7.md?page=189

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**Page:** 190

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## [Nvidia Index error under paraview 5.8/windows 10 with latest nvida driver](https://discourse.paraview.org/t/nvidia-index-error-under-paraview-5-8-windows-10-with-latest-nvida-driver/3730)

<div class="topic-metadata">

**Author:** [@lfcma](https://discourse.paraview.org/u/lfcma)\
**Replies:** 2\
**Last updated:** [March 5, 2020, 2:05am UTC](https://discourse.paraview.org/t/nvidia-index-error-under-paraview-5-8-windows-10-with-latest-nvida-driver/3730 "2020-03-05T02:05:32Z")

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the error message as follows: nvindex: 1.0 PVPLN main error: Trying to set unsupported z-buffer precision 0. Please verify the status of the X-server when the precision is reported as 0. it is a HP mobile worksa…

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## [ver5.8 volume rendering doesn't work](https://discourse.paraview.org/t/ver5-8-volume-rendering-doesnt-work/3742)

<div class="topic-metadata">

**Author:** [@chchung](https://discourse.paraview.org/u/chchung)\
**Replies:** 3\
**Last updated:** [March 4, 2020, 4:58pm UTC](https://discourse.paraview.org/t/ver5-8-volume-rendering-doesnt-work/3742 "2020-03-04T16:58:21Z")

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I am using Mac Catalina, 8G RAM. When using paraView ver 5.8, after restoring to default settings, I ran the example disk\_out\_ref.ex2 in the tutorial Ex 2.16, it became a black screen in the view window. Then I switche…

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## [Conversion of unstructured points to a connected unstructured grid (auto add edges)](https://discourse.paraview.org/t/conversion-of-unstructured-points-to-a-connected-unstructured-grid-auto-add-edges/3722)

<div class="topic-metadata">

**Author:** [@Fraseyboo](https://discourse.paraview.org/u/Fraseyboo)\
**Replies:** 9\
**Last updated:** [March 4, 2020, 12:32pm UTC](https://discourse.paraview.org/t/conversion-of-unstructured-points-to-a-connected-unstructured-grid-auto-add-edges/3722 "2020-03-04T12:32:03Z")

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I’m trying to convert a 3D point cloud into an unstructured grid where the tetrahedral cells produced comprise of only 4 points and 6 edges each and do not contain any other points within their volume. I don’t have any i…

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## [How to update value of Cell only if its greater than the one in the last time step](https://discourse.paraview.org/t/how-to-update-value-of-cell-only-if-its-greater-than-the-one-in-the-last-time-step/3693)

<div class="topic-metadata">

**Author:** [@Abbas](https://discourse.paraview.org/u/Abbas)\
**Replies:** 7\
**Last updated:** [March 4, 2020, 8:00am UTC](https://discourse.paraview.org/t/how-to-update-value-of-cell-only-if-its-greater-than-the-one-in-the-last-time-step/3693 "2020-03-04T08:00:55Z")

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This is a bit difficult to explain so bear with me. I have whole bunch of particles which change position and magnitude as time passes but I only want to update the magnitude if its bigger than the last- i.e. I want ea…

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## [Paraview architecture and design question](https://discourse.paraview.org/t/paraview-architecture-and-design-question/3743)

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**Author:** [@kayarre](https://discourse.paraview.org/u/kayarre)\
**Replies:** 1\
**Last updated:** [March 4, 2020, 7:48am UTC](https://discourse.paraview.org/t/paraview-architecture-and-design-question/3743 "2020-03-04T07:48:48Z")

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What is the error handling architecture in Paraview and what design goals does the implementation attempt to achieve? and how does it work with the lower level libraries, remote modules etc. What are the warts and gems? …

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## [vtkIntegrateAttributes not available](https://discourse.paraview.org/t/vtkintegrateattributes-not-available/3728)

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**Author:** [@Jamargi](https://discourse.paraview.org/u/Jamargi)\
**Replies:** 3\
**Last updated:** [March 4, 2020, 2:36am UTC](https://discourse.paraview.org/t/vtkintegrateattributes-not-available/3728 "2020-03-04T02:36:41Z")

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Good morning, I am trying to integrate some arrays within a .VTK, and found about the “vtkIntegrateAttributes”, but on python that module seems to not exist. I am using vtk8.1 with python2.7. What could be the problem? …

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## [Lensing of black holes / custom ray-tracing with ParaView](https://discourse.paraview.org/t/lensing-of-black-holes-custom-ray-tracing-with-paraview/3732)

<div class="topic-metadata">

**Author:** [@nilsleiffischer](https://discourse.paraview.org/u/nilsleiffischer)\
**Replies:** 2\
**Last updated:** [March 3, 2020, 11:12pm UTC](https://discourse.paraview.org/t/lensing-of-black-holes-custom-ray-tracing-with-paraview/3732 "2020-03-03T23:12:47Z")

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I am looking for ways to create a lensing effect similar to the black hole in the Interstellar movie in ParaView. Here‘s another example where scientists at NASA have used a ray-tracing code to create this effect: https:…

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## [Using HyperSlab in XDMF](https://discourse.paraview.org/t/using-hyperslab-in-xdmf/3737)

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**Author:** [@keyvanzarerami](https://discourse.paraview.org/u/keyvanzarerami)\
**Replies:** 0\
**Last updated:** [March 3, 2020, 9:57pm UTC](https://discourse.paraview.org/t/using-hyperslab-in-xdmf/3737 "2020-03-03T21:57:18Z")

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I am trying to use HyperSlab in a simple XDMF example. The example includes two triangular elements. The first column of the original connectivity matrix is the element ID: 1 0 1 3 2 0 3 2 So I am using HyperSlab in …

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## [color setup after loading png file under windows 10 &paraview 5.8](https://discourse.paraview.org/t/color-setup-after-loading-png-file-under-windows-10-paraview-5-8/3705)

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**Author:** [@lfcma](https://discourse.paraview.org/u/lfcma)\
**Replies:** 2\
**Last updated:** [March 3, 2020, 1:14pm UTC](https://discourse.paraview.org/t/color-setup-after-loading-png-file-under-windows-10-paraview-5-8/3705 "2020-03-03T13:14:06Z")

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Dear all I just load an earth background .png file under paraview 5.8 , but the color seems abnormal, any suggestions or any configuration I missed ? image|480x500 best regards Feng

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## [Warp By Vector of 2D](https://discourse.paraview.org/t/warp-by-vector-of-2d/3725)

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**Author:** [@limliangjin](https://discourse.paraview.org/u/limliangjin)\
**Replies:** 0\
**Last updated:** [March 3, 2020, 8:41am UTC](https://discourse.paraview.org/t/warp-by-vector-of-2d/3725 "2020-03-03T08:41:48Z")

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I have a 2D model with displacement defined on (x, y). The Warp By Vector filter is grayed out and I found that Paraview does not support 2D vectorial warping. Is there any workaround for this issue, besides having to a…

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## [Windows Installation](https://discourse.paraview.org/t/windows-installation/3719)

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**Author:** [@rodc](https://discourse.paraview.org/u/rodc)\
**Replies:** 6\
**Last updated:** [March 3, 2020, 4:32am UTC](https://discourse.paraview.org/t/windows-installation/3719 "2020-03-03T04:32:16Z")

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I have downloaded Paraview on Windows but cannot find documentation as to how to install and run it. Help would be appreciated

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## [NETCDF Time Annotation](https://discourse.paraview.org/t/netcdf-time-annotation/3695)

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**Author:** [@yvonneg](https://discourse.paraview.org/u/yvonneg)\
**Replies:** 3\
**Last updated:** [March 2, 2020, 3:43pm UTC](https://discourse.paraview.org/t/netcdf-time-annotation/3695 "2020-03-02T15:43:04Z")

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Hi I’m working with netcdf files in paraview (version 5.7) and I need to use the filter ‘NetCDF Time Annotation’, but the filter depends on the python module netcdftime. How do I install netcdftime for paraview on linux…

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## [Are there conditions to export glTF format correctly?](https://discourse.paraview.org/t/are-there-conditions-to-export-gltf-format-correctly/3714)

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**Author:** [@yugo](https://discourse.paraview.org/u/yugo)\
**Replies:** 7\
**Last updated:** [March 2, 2020, 7:39am UTC](https://discourse.paraview.org/t/are-there-conditions-to-export-gltf-format-correctly/3714 "2020-03-02T07:39:24Z")

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I drew a threshold and contour data from 3D data (Structured (Curvilinear) Grid), and I exported scene to glTF format on Paraview 5.8.0. I checked it with 3D Viewer on Windows 10, but the shape was obviously different fr…

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## [How to set up an object or property link with python](https://discourse.paraview.org/t/how-to-set-up-an-object-or-property-link-with-python/3321)

<div class="topic-metadata">

**Author:** [@Tobias](https://discourse.paraview.org/u/Tobias)\
**Replies:** 4\
**Last updated:** [March 2, 2020, 4:17am UTC](https://discourse.paraview.org/t/how-to-set-up-an-object-or-property-link-with-python/3321 "2020-03-02T04:17:17Z")

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Hi, I want to set up an object link between two clip planes within a macro written in python. Camera linking is easy with AddCameraLink(). Is there something similar for other links as well?

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## [Appending vtkImageData in paraview](https://discourse.paraview.org/t/appending-vtkimagedata-in-paraview/3701)

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**Author:** [@Vishnu-C](https://discourse.paraview.org/u/Vishnu-C)\
**Replies:** 5\
**Last updated:** [March 2, 2020, 3:14am UTC](https://discourse.paraview.org/t/appending-vtkimagedata-in-paraview/3701 "2020-03-02T03:14:11Z")

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Hello, I want to append vtkImageData files to a single file, I could easily do that with vtk. But from paraview I can apply transform filters to place them as needed and append them. I tried two techniques to do that, …

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## [Value change being displayed](https://discourse.paraview.org/t/value-change-being-displayed/3620)

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**Author:** [@Samanvith\_A](https://discourse.paraview.org/u/Samanvith_A)\
**Replies:** 14\
**Last updated:** [March 2, 2020, 2:44am UTC](https://discourse.paraview.org/t/value-change-being-displayed/3620 "2020-03-02T02:44:36Z")

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I have seven files which is a 3d gridded data, which changes from Z = 1 to 7. I have created the animation of change in the data. I want to display the change in value i.e Z = 1 to 7 in the animation view. How can I do…

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## [Unsteady Plot3d File](https://discourse.paraview.org/t/unsteady-plot3d-file/3686)

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**Author:** [@MAGAN\_SINGH](https://discourse.paraview.org/u/MAGAN_SINGH)\
**Replies:** 3\
**Last updated:** [March 2, 2020, 2:37am UTC](https://discourse.paraview.org/t/unsteady-plot3d-file/3686 "2020-03-02T02:37:35Z")

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Steady plot3d binary files are easily readable in Paraview, But when I load 2D unsteady binary grid file and solution plot3d file (solution output at all time steps is written in a single solution file), It doesn’t load …

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## [Plotting CSV lat/long on a sphere](https://discourse.paraview.org/t/plotting-csv-lat-long-on-a-sphere/3699)

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**Author:** [@David\_Ortley](https://discourse.paraview.org/u/David_Ortley)\
**Replies:** 1\
**Last updated:** [February 29, 2020, 2:04am UTC](https://discourse.paraview.org/t/plotting-csv-lat-long-on-a-sphere/3699 "2020-02-29T02:04:18Z")

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Hello, I have a dataset that is a .csv file with lat/long/value columns. I can load this file and do TableToPoints to view the map, which yields a Mercator projection. What are my options for viewing this information …

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## [ParaView 5.6.0 Build GUI not working](https://discourse.paraview.org/t/paraview-5-6-0-build-gui-not-working/3698)

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**Author:** [@MaxEdinger](https://discourse.paraview.org/u/MaxEdinger)\
**Replies:** 0\
**Last updated:** [February 28, 2020, 8:07pm UTC](https://discourse.paraview.org/t/paraview-5-6-0-build-gui-not-working/3698 "2020-02-28T20:07:36Z")

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I tried to build ParaView 5.6.0 with the source files provided on the ParaView website on a Kubuntu 18.04 LTS system. The build process was successful, however the GUI does not work properly. Only the window borders are …

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## [Adding VTK filter](https://discourse.paraview.org/t/adding-vtk-filter/3690)

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**Author:** [@rcarneiro](https://discourse.paraview.org/u/rcarneiro)\
**Replies:** 4\
**Last updated:** [February 28, 2020, 3:33pm UTC](https://discourse.paraview.org/t/adding-vtk-filter/3690 "2020-02-28T15:33:46Z")

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Dear all, I would appreciate if somebody can clarify if there is a clear procedure how to add a new VTK filter in Paraview GUI for Windows? I’m using the last release of Paraview v5.8 and I would like to add new VTK fi…

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## [Loop the slice filter on the 3D dataset](https://discourse.paraview.org/t/loop-the-slice-filter-on-the-3d-dataset/3645)

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**Author:** [@Polly\_Hiro](https://discourse.paraview.org/u/Polly_Hiro)\
**Replies:** 5\
**Last updated:** [February 28, 2020, 12:38pm UTC](https://discourse.paraview.org/t/loop-the-slice-filter-on-the-3d-dataset/3645 "2020-02-28T12:38:19Z")

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Hi. I applied slice x normal and y normal on my 3D data to get a set of points coordinates. I set the slice filter as the customize filter. I could run the data and collect the points coordinates one by one using Macros…

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## [Reducing 3D data to 1D](https://discourse.paraview.org/t/reducing-3d-data-to-1d/3561)

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**Author:** [@woodscn](https://discourse.paraview.org/u/woodscn)\
**Replies:** 8\
**Last updated:** [February 28, 2020, 2:35am UTC](https://discourse.paraview.org/t/reducing-3d-data-to-1d/3561 "2020-02-28T02:35:20Z")

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I have some 3D data that I need to average out across two dimensions. Specifically, I have an XYZ representation of something that is spherically symmetric, and I want to compute the average value of a cell quantity acro…

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## [How do I make a illustration of particles in a tube?](https://discourse.paraview.org/t/how-do-i-make-a-illustration-of-particles-in-a-tube/3586)

<div class="topic-metadata">

**Author:** [@Cal](https://discourse.paraview.org/u/Cal)\
**Replies:** 14\
**Last updated:** [February 28, 2020, 2:04am UTC](https://discourse.paraview.org/t/how-do-i-make-a-illustration-of-particles-in-a-tube/3586 "2020-02-28T02:04:20Z")

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Hi all, I am currently working on a code in openFOAM which simulates a spray through a cylindrical tube. I have successfully imported the data into paraview but am having trouble creating the types of images and graphs …

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## [User question - Integrate, then plot over time?](https://discourse.paraview.org/t/user-question-integrate-then-plot-over-time/3684)

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**Author:** [@wascott](https://discourse.paraview.org/u/wascott)\
**Replies:** 2\
**Last updated:** [February 27, 2020, 9:22pm UTC](https://discourse.paraview.org/t/user-question-integrate-then-plot-over-time/3684 "2020-02-27T21:22:22Z")

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From one of my users: Basic question, but I have an electric field line-out over which I would like to integrate (to get voltage between the two points) and then I would like to plot this over time to obtain the potenti…

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## [Can't see colormap of Point Array](https://discourse.paraview.org/t/cant-see-colormap-of-point-array/3688)

<div class="topic-metadata">

**Author:** [@Gustavo029](https://discourse.paraview.org/u/Gustavo029)\
**Replies:** 0\
**Last updated:** [February 27, 2020, 7:30pm UTC](https://discourse.paraview.org/t/cant-see-colormap-of-point-array/3688 "2020-02-27T19:30:53Z")

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Hello, I’m trying to implement a program that runs some simulation, and the output format is cgns. I’m creating this file using the h5py library (HDF5 format) but based on the pyCGNS library. Paraview can load the fil…

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## [How to see ids of polydata objects ?](https://discourse.paraview.org/t/how-to-see-ids-of-polydata-objects/3682)

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**Author:** [@lainegates](https://discourse.paraview.org/u/lainegates)\
**Replies:** 3\
**Last updated:** [February 27, 2020, 12:43pm UTC](https://discourse.paraview.org/t/how-to-see-ids-of-polydata-objects/3682 "2020-02-27T12:43:36Z")

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Hi, guys. I am displaying data with paraview. The data is composed of discrete elements. i.e. each element is displayed by a PolyData. I write result into \*.vtp file. I can see all elements together. The problem is …

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## [pvpython on cluster](https://discourse.paraview.org/t/pvpython-on-cluster/3626)

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**Author:** [@jurriaan](https://discourse.paraview.org/u/jurriaan)\
**Replies:** 4\
**Last updated:** [February 27, 2020, 7:38am UTC](https://discourse.paraview.org/t/pvpython-on-cluster/3626 "2020-02-27T07:38:15Z")

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Dear all, I’m trying to make a python script that is automatically generated with the Paraview trace tool to work from the command line. I log in onto our cluster with putty and X11 forwarding enabled. Paraview works n…

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## [Failure to load an OpenFOAM Controldict.](https://discourse.paraview.org/t/failure-to-load-an-openfoam-controldict/3667)

<div class="topic-metadata">

**Author:** [@David\_Vazquez](https://discourse.paraview.org/u/David_Vazquez)\
**Replies:** 1\
**Last updated:** [February 27, 2020, 4:31am UTC](https://discourse.paraview.org/t/failure-to-load-an-openfoam-controldict/3667 "2020-02-27T04:31:25Z")

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Good day, Paraview is crashing immediately without any messages when trying to open a Controldict file of an OpenFOAM case. It is only happening with this specific case and I do not know why since it does not display an…

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## [Loading custom built plugin into official PV binary causes segfault](https://discourse.paraview.org/t/loading-custom-built-plugin-into-official-pv-binary-causes-segfault/3664)

<div class="topic-metadata">

**Author:** [@Senui](https://discourse.paraview.org/u/Senui)\
**Replies:** 4\
**Last updated:** [February 27, 2020, 3:25am UTC](https://discourse.paraview.org/t/loading-custom-built-plugin-into-official-pv-binary-causes-segfault/3664 "2020-02-27T03:25:02Z")

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Hello, I am trying to load my own plugin (called BDMGlyphFilter) that I have built in the superbuild development environment (the CATALYST\_RENDERING edition, at the v5.8.0 tag), into the ParaView client from the officia…

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## [View scalar on surface of building with polygonal bases. Cutting?](https://discourse.paraview.org/t/view-scalar-on-surface-of-building-with-polygonal-bases-cutting/3648)

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**Author:** [@luigiraffaele](https://discourse.paraview.org/u/luigiraffaele)\
**Replies:** 3\
**Last updated:** [February 26, 2020, 4:21pm UTC](https://discourse.paraview.org/t/view-scalar-on-surface-of-building-with-polygonal-bases-cutting/3648 "2020-02-26T16:21:29Z")

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Dear all, I’m trying to visualize a 3d simulation of a scalar quantity, eg. a f(x,y,z), on a surface of city buildings with polygonal bases. I write the data on vtk file. With buildings lateral faces (several vertical…

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