# ParaView Support

**URL:** https://discourse.paraview.org/c/paraview-support/7.md?page=66

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**Page:** 67

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## [What can I do if Paraview cannot open a single vtu file larger than 2G](https://discourse.paraview.org/t/what-can-i-do-if-paraview-cannot-open-a-single-vtu-file-larger-than-2g/12899)

<div class="topic-metadata">

**Author:** [@WenYuan](https://discourse.paraview.org/u/WenYuan)\
**Replies:** 5\
**Last updated:** [September 22, 2023, 12:48am UTC](https://discourse.paraview.org/t/what-can-i-do-if-paraview-cannot-open-a-single-vtu-file-larger-than-2g/12899 "2023-09-22T00:48:45Z")

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What can I do if Paraview cannot open a single vtu file larger than 2G

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## [Plotting stream tracer data with Cell Data?](https://discourse.paraview.org/t/plotting-stream-tracer-data-with-cell-data/3855)

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**Author:** [@Mohammed\_Fuad\_Choudh](https://discourse.paraview.org/u/Mohammed_Fuad_Choudh)\
**Replies:** 3\
**Last updated:** [September 21, 2023, 11:23am UTC](https://discourse.paraview.org/t/plotting-stream-tracer-data-with-cell-data/3855 "2023-09-21T11:23:47Z")

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Hello, I was wondering if it was possible to use stream tracer to observe changes in some cell data over the line? Im working with a multi block dataset and am using velocity to generate the stream lines. The cell data …

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## [Crystal Eyes stereo on Windows](https://discourse.paraview.org/t/crystal-eyes-stereo-on-windows/12844)

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**Author:** [@woodscn](https://discourse.paraview.org/u/woodscn)\
**Replies:** 5\
**Last updated:** [September 21, 2023, 8:47am UTC](https://discourse.paraview.org/t/crystal-eyes-stereo-on-windows/12844 "2023-09-21T08:47:22Z")

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Running Paraview 5.11.1 using MS-MPI. I launch four pvserver jobs using our .pvx file, the --stereo flag, and --stereo-type=“Crystal Eyes”. When I try to connect to these using a client, I get the following error. All fo…

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## [vtkSocketCommunicator::GetVersion() mistmatch when client and server are both v5.11.1](https://discourse.paraview.org/t/vtksocketcommunicator-getversion-mistmatch-when-client-and-server-are-both-v5-11-1/12888)

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**Author:** [@jgrime](https://discourse.paraview.org/u/jgrime)\
**Replies:** 8\
**Last updated:** [September 20, 2023, 8:16pm UTC](https://discourse.paraview.org/t/vtksocketcommunicator-getversion-mistmatch-when-client-and-server-are-both-v5-11-1/12888 "2023-09-20T20:16:14Z")

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I installed ParaView 5.11.1 in a Docker container running Ubuntu 20.04 as per the build instructions. The resultant pvserver executable reports the following: paraview\_build/bin# ./pvserver --version paraview version 5.…

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## [Question from enabling opacity mapping in categorical colors](https://discourse.paraview.org/t/question-from-enabling-opacity-mapping-in-categorical-colors/12890)

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**Author:** [@fashing](https://discourse.paraview.org/u/fashing)\
**Replies:** 1\
**Last updated:** [September 20, 2023, 11:51am UTC](https://discourse.paraview.org/t/question-from-enabling-opacity-mapping-in-categorical-colors/12890 "2023-09-20T11:51:49Z")

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Hi Paraview, This is a simple question related to my previous post. While I applied opacity mapping on this cube, I saw through it. I understand this means there is no “surface” in the contacting area between sub-c…

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## [pvrenderserver egl nvidia index with pvdataserver osmesa](https://discourse.paraview.org/t/pvrenderserver-egl-nvidia-index-with-pvdataserver-osmesa/12884)

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**Author:** [@Matteo\_Checcucci](https://discourse.paraview.org/u/Matteo_Checcucci)\
**Replies:** 2\
**Last updated:** [September 20, 2023, 11:14am UTC](https://discourse.paraview.org/t/pvrenderserver-egl-nvidia-index-with-pvdataserver-osmesa/12884 "2023-09-20T11:14:53Z")

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good morning, is there a way to make an osmesa compiled data server communicate with a rendering server configured with egl and nvidia index plugin? after launching the corresponding servers: user@node01:~$ mpiexec -np…

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## [Processing very large \`vtkMultiBlockDataSet\` - performance & pipeline suggestions // working example attached](https://discourse.paraview.org/t/processing-very-large-vtkmultiblockdataset-performance-pipeline-suggestions-working-example-attached/12879)

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**Author:** [@M1kol4j](https://discourse.paraview.org/u/M1kol4j)\
**Replies:** 6\
**Last updated:** [September 20, 2023, 9:16am UTC](https://discourse.paraview.org/t/processing-very-large-vtkmultiblockdataset-performance-pipeline-suggestions-working-example-attached/12879 "2023-09-20T09:16:12Z")

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Dear ParaView experts, Context: I am working on a very large astrophysical simulation. Our parallel code splits the computational domain into hundreds of thousands of small, independent, structured grids (typical size 2…

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## [Plane averages for multiple slices](https://discourse.paraview.org/t/plane-averages-for-multiple-slices/12828)

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**Author:** [@caladoa](https://discourse.paraview.org/u/caladoa)\
**Replies:** 3\
**Last updated:** [September 19, 2023, 2:27pm UTC](https://discourse.paraview.org/t/plane-averages-for-multiple-slices/12828 "2023-09-19T14:27:06Z")

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Greetings, I tried looking in the forum for someone with a similar problem, but couldn’t find a nice solution yet. I want to basically compute slice averages (2D) along the Z direction. I have created the sequence of s…

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## [Vector glyph orient not working](https://discourse.paraview.org/t/vector-glyph-orient-not-working/184)

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**Author:** [@Chris\_Marsh](https://discourse.paraview.org/u/Chris_Marsh)\
**Replies:** 15\
**Last updated:** [September 19, 2023, 2:04pm UTC](https://discourse.paraview.org/t/vector-glyph-orient-not-working/184 "2023-09-19T14:04:17Z")

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I have a triangular mesh that I visualize in ParaView. Each cell has vector data I would like to show (wind direction). I assign the cell the vector via \_vtk\_unstructuredGrid-\>GetCellData()-\>AddArray(vector\_dir\_array);…

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## [Issue with Reading Tecplot Mesh File in ParaView](https://discourse.paraview.org/t/issue-with-reading-tecplot-mesh-file-in-paraview/12852)

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**Author:** [@mardar](https://discourse.paraview.org/u/mardar)\
**Replies:** 8\
**Last updated:** [September 19, 2023, 10:44am UTC](https://discourse.paraview.org/t/issue-with-reading-tecplot-mesh-file-in-paraview/12852 "2023-09-19T10:44:40Z")

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Hello, ParaView community, I am encountering an issue while trying to import a Tecplot mesh file into ParaView. Despite successfully importing the file, I am unable to visualize it. The mesh doesn’t appear. The file: s…

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## [Some questions about categorical colors](https://discourse.paraview.org/t/some-questions-about-categorical-colors/12860)

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**Author:** [@fashing](https://discourse.paraview.org/u/fashing)\
**Replies:** 8\
**Last updated:** [September 19, 2023, 3:08am UTC](https://discourse.paraview.org/t/some-questions-about-categorical-colors/12860 "2023-09-19T03:08:05Z")

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Hi Paraview, I am trying this categorical colors function in Paraview and I have some questions. Here is the testcase.vdb I used. Does it worked with volume representation? After I check Interpret Values As Categor…

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## [Issue opening large VTKHDF file](https://discourse.paraview.org/t/issue-opening-large-vtkhdf-file/12810)

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**Author:** [@jordimuela](https://discourse.paraview.org/u/jordimuela)\
**Replies:** 10\
**Last updated:** [September 18, 2023, 1:45pm UTC](https://discourse.paraview.org/t/issue-opening-large-vtkhdf-file/12810 "2023-09-18T13:45:23Z")

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Hi all! First of all, let me start by thanking everyone for the work you are doing with this software and the help that we will receive for sure :slight\_smile: We are developing a CFD Code (SOD2D BSC\_SOD2D / sod2d\_gitl…

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## [Ability to pause rendering until finished creating pipeline?](https://discourse.paraview.org/t/ability-to-pause-rendering-until-finished-creating-pipeline/12872)

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**Author:** [@GregVernon](https://discourse.paraview.org/u/GregVernon)\
**Replies:** 1\
**Last updated:** [September 18, 2023, 10:05am UTC](https://discourse.paraview.org/t/ability-to-pause-rendering-until-finished-creating-pipeline/12872 "2023-09-18T10:05:49Z")

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From a Reddit thread, one user has asked: Why do I have to render every step as I go when using the GUI. If I know what filters I’m going to apply, I’d like to stop the rendering till the end. This is how it works when…

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## [Picking stress values from a model...](https://discourse.paraview.org/t/picking-stress-values-from-a-model/12867)

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**Author:** [@prusso630](https://discourse.paraview.org/u/prusso630)\
**Replies:** 2\
**Last updated:** [September 15, 2023, 1:46pm UTC](https://discourse.paraview.org/t/picking-stress-values-from-a-model/12867 "2023-09-15T13:46:33Z")

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I have the xdmf exported from a FEniCS project script for a reinforced concrete slab. I like the gradient legend however I really need to see decimal accurate stress values at different points on the model. Is it poss…

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## [How to map discrete colors to continueous integer values?](https://discourse.paraview.org/t/how-to-map-discrete-colors-to-continueous-integer-values/12863)

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**Author:** [@sangjun11316](https://discourse.paraview.org/u/sangjun11316)\
**Replies:** 1\
**Last updated:** [September 15, 2023, 8:34am UTC](https://discourse.paraview.org/t/how-to-map-discrete-colors-to-continueous-integer-values/12863 "2023-09-15T08:34:27Z")

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Here, I want to visualize ‘fragment id’ of each chuncks of particles. I got \> 3,000 fragments whose indice are discrete integers (i.e. 1,2,3,…). While they have integer values, currently they are stored in float preci…

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## [Create perpendicular lines to Contour lines](https://discourse.paraview.org/t/create-perpendicular-lines-to-contour-lines/12870)

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**Author:** [@Barbara\_Meneses\_Vega](https://discourse.paraview.org/u/Barbara_Meneses_Vega)\
**Replies:** 0\
**Last updated:** [September 15, 2023, 2:49am UTC](https://discourse.paraview.org/t/create-perpendicular-lines-to-contour-lines/12870 "2023-09-15T02:49:57Z")

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Hello, I am new in Paraview. It has helped me a lot with my visualizations and I think it is a very nice software. Now, I am facing a problem: I have a 3D hydrogeological model and I need to make a slice in order to get…

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## [Help with Script - Results are all zero](https://discourse.paraview.org/t/help-with-script-results-are-all-zero/12865)

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**Author:** [@DumbledoreCalrissian](https://discourse.paraview.org/u/DumbledoreCalrissian)\
**Replies:** 0\
**Last updated:** [September 14, 2023, 2:19pm UTC](https://discourse.paraview.org/t/help-with-script-results-are-all-zero/12865 "2023-09-14T14:19:26Z")

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Hi. I have the following script, which works as a macro but not from command-line (i.e. pvpython script.py). Even when running as a macro, this weird thing happens where for the values of Surface Flow to be non-zero, I …

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## [Possibility of ignoring NaN values in L2\_NORM\_RANGE](https://discourse.paraview.org/t/possibility-of-ignoring-nan-values-in-l2-norm-range/12854)

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**Author:** [@GregVernon](https://discourse.paraview.org/u/GregVernon)\
**Replies:** 0\
**Last updated:** [September 13, 2023, 4:40pm UTC](https://discourse.paraview.org/t/possibility-of-ignoring-nan-values-in-l2-norm-range/12854 "2023-09-13T16:40:04Z")

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We have an issue where opening a file that has NaN values in it (see attached) will pop-up errors for L2\_NORM\_RANGE. The NaNs are “real” – in the attached files they arise in the stress -\> triaxiality variable. From…

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## [ParaView (5.9.0) superbuild with mesa](https://discourse.paraview.org/t/paraview-5-9-0-superbuild-with-mesa/7117)

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**Author:** [@Jeff\_Becker](https://discourse.paraview.org/u/Jeff_Becker)\
**Replies:** 7\
**Last updated:** [September 13, 2023, 1:13am UTC](https://discourse.paraview.org/t/paraview-5-9-0-superbuild-with-mesa/7117 "2023-09-13T01:13:24Z")

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Hello, I’m trying to build ParaView with Qt and Mesa, and am getting the following build error. Any suggestions? Thanks. -Jeff Making all in targets/libgl-xlib CC xlib.lo CXXLD libGL.la clang-11: warning: argument …

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## [How to Increase Slice Thickness?](https://discourse.paraview.org/t/how-to-increase-slice-thickness/12840)

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**Author:** [@mardar](https://discourse.paraview.org/u/mardar)\
**Replies:** 1\
**Last updated:** [September 12, 2023, 1:08pm UTC](https://discourse.paraview.org/t/how-to-increase-slice-thickness/12840 "2023-09-12T13:08:31Z")

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I’m using the “Slice” filter to cut through it and visualize specific regions. However, the resulting slice is quite thin, and I’d like to make it thicker for better visualization. How can I do that? Any assistance w…

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## [Trying to show csv data in Paraview](https://discourse.paraview.org/t/trying-to-show-csv-data-in-paraview/10725)

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**Author:** [@meljarak](https://discourse.paraview.org/u/meljarak)\
**Replies:** 4\
**Last updated:** [September 12, 2023, 10:42am UTC](https://discourse.paraview.org/t/trying-to-show-csv-data-in-paraview/10725 "2023-09-12T10:42:31Z")

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Hello everyone, I want to show a CFD result csv data(x coordinate, y coordinate, z coordinate, physical data temperature/velocity/…) in Paraview as cell data I tried following filters: TableToPoints → point 3D plot, …

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## ["Interpret Values As Categories" does not work with TIFF Series Reader](https://discourse.paraview.org/t/interpret-values-as-categories-does-not-work-with-tiff-series-reader/11313)

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**Author:** [@gatoniel](https://discourse.paraview.org/u/gatoniel)\
**Replies:** 4\
**Last updated:** [September 12, 2023, 7:26am UTC](https://discourse.paraview.org/t/interpret-values-as-categories-does-not-work-with-tiff-series-reader/11313 "2023-09-12T07:26:35Z")

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Hi, I have a 3d array saved in a tiff file whose contents I want to look at in Paraview. The array contains categorical data, so each pixel is either 0, 1, or 2. I import the tiff file in Paraview with the TIFF Series R…

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## [Unable to change filter timestep in python/pvbatch](https://discourse.paraview.org/t/unable-to-change-filter-timestep-in-python-pvbatch/5725)

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**Author:** [@lhcamilo](https://discourse.paraview.org/u/lhcamilo)\
**Replies:** 11\
**Last updated:** [September 11, 2023, 8:26pm UTC](https://discourse.paraview.org/t/unable-to-change-filter-timestep-in-python-pvbatch/5725 "2023-09-11T20:26:37Z")

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I have been trying to write a batch script in python/pvbatch that would probe a location from an openfoam case. Read its velocity and pressure data Save the data onto a numpy array loop over all time steps of the case …

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## [Is it possible to choose multiple girds in the coloring select?](https://discourse.paraview.org/t/is-it-possible-to-choose-multiple-girds-in-the-coloring-select/12831)

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**Author:** [@fashing](https://discourse.paraview.org/u/fashing)\
**Replies:** 7\
**Last updated:** [September 11, 2023, 9:01am UTC](https://discourse.paraview.org/t/is-it-possible-to-choose-multiple-girds-in-the-coloring-select/12831 "2023-09-11T09:01:55Z")

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Hi, I am using Paraview 5.11.1 for volume rendering. And the testcase I use contains multiple grids in Grid Arrays. I notice that I can only choose one grid each time in the coloring select. I wonder if there’s a way to …

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## [Paraview keeps crashing once I select Interactive cells on and select plot over time](https://discourse.paraview.org/t/paraview-keeps-crashing-once-i-select-interactive-cells-on-and-select-plot-over-time/12654)

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**Author:** [@Aditya\_Jain](https://discourse.paraview.org/u/Aditya_Jain)\
**Replies:** 7\
**Last updated:** [September 11, 2023, 7:28am UTC](https://discourse.paraview.org/t/paraview-keeps-crashing-once-i-select-interactive-cells-on-and-select-plot-over-time/12654 "2023-09-11T07:28:57Z")

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This is the error that I get: Loguru caught a signal: SIGSEGV ( 35.368s) \[paraview \] :0 FATL| Signal: SIGSEGV Segmentation fault (core dumped) The error seems to occur at random time…

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## [How to display velocity of spheres with high resolution](https://discourse.paraview.org/t/how-to-display-velocity-of-spheres-with-high-resolution/12835)

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**Author:** [@MuWeihao](https://discourse.paraview.org/u/MuWeihao)\
**Replies:** 5\
**Last updated:** [September 11, 2023, 7:00am UTC](https://discourse.paraview.org/t/how-to-display-velocity-of-spheres-with-high-resolution/12835 "2023-09-11T07:00:30Z")

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Hi! I am a new user of Paraview. I want to represent the velocity of spheres(ie. Sphvel) inParaView. However, I have meetings with several problems: In ParaView 5.7.0, The velocity option can be chosen in coloring, b…

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## [Help with getting similar results for spray combustion](https://discourse.paraview.org/t/help-with-getting-similar-results-for-spray-combustion/12833)

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**Author:** [@barbarian\_subhkaran](https://discourse.paraview.org/u/barbarian_subhkaran)\
**Replies:** 2\
**Last updated:** [September 9, 2023, 3:00pm UTC](https://discourse.paraview.org/t/help-with-getting-similar-results-for-spray-combustion/12833 "2023-09-09T15:00:32Z")

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Hello, I am Subhkaran Singh. I am performing a spray combustion of heptane using OpenFOAM. I loaded the results into Paraview. I need to get a volume rendering such as:- Please tell me, how can I do this T…

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## [Use the output of the calculator filter in pvpython](https://discourse.paraview.org/t/use-the-output-of-the-calculator-filter-in-pvpython/10400)

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**Author:** [@phismith](https://discourse.paraview.org/u/phismith)\
**Replies:** 7\
**Last updated:** [September 7, 2023, 3:05pm UTC](https://discourse.paraview.org/t/use-the-output-of-the-calculator-filter-in-pvpython/10400 "2023-09-07T15:05:20Z")

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Hi All, I have been trying to use the output of the Python Calculator for the clip value within pvpython. I would like it to be a variable that can be added to the script, so when I change the formula, the new value wil…

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## [File name does not appear in information/FileProperties section y](https://discourse.paraview.org/t/file-name-does-not-appear-in-information-fileproperties-section-y/12821)

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**Author:** [@sangjun11316](https://discourse.paraview.org/u/sangjun11316)\
**Replies:** 5\
**Last updated:** [September 7, 2023, 3:58am UTC](https://discourse.paraview.org/t/file-name-does-not-appear-in-information-fileproperties-section-y/12821 "2023-09-07T03:58:41Z")

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I have been using quite old version of ParaView (5.6.x), and yesterday I downloaded recent ParaView (5.11.1) in my new desktop. It was quite handy to load series of files to look into its time evolution, and in the ‘…

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## [prolongation filter](https://discourse.paraview.org/t/prolongation-filter/12822)

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**Author:** [@Rahi](https://discourse.paraview.org/u/Rahi)\
**Replies:** 0\
**Last updated:** [September 6, 2023, 11:34am UTC](https://discourse.paraview.org/t/prolongation-filter/12822 "2023-09-06T11:34:35Z")

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Hello, I used “Transform” filter to prolong the bottom of a 3D object in stl format but changes the shape. It stretches the whole object so that the diameter of the inlet and outlet also changes, while I only need to…

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