# ParaView Support

**URL:** https://discourse.paraview.org/c/paraview-support/7.md?page=86

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

**Page:** 87

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## [Flagpole actor with mpi does not render correctly.](https://discourse.paraview.org/t/flagpole-actor-with-mpi-does-not-render-correctly/11064)

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**Author:** [@mclarsen](https://discourse.paraview.org/u/mclarsen)\
**Replies:** 3\
**Last updated:** [February 1, 2023, 11:09pm UTC](https://discourse.paraview.org/t/flagpole-actor-with-mpi-does-not-render-correctly/11064 "2023-02-01T23:09:35Z")

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Hi All, I came to ask about an issue I am encountering that I suspect is a compositing issue. Specifically, I am using paraview egl 5.10.0-RC1. I am using the flagpole actor for some annotations, but whenever I use MPI …

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## [Calculator Error](https://discourse.paraview.org/t/calculator-error/11279)

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**Author:** [@kenzbaker](https://discourse.paraview.org/u/kenzbaker)\
**Replies:** 7\
**Last updated:** [February 1, 2023, 3:50am UTC](https://discourse.paraview.org/t/calculator-error/11279 "2023-02-01T03:50:52Z")

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Hi, I am having an issue with making calculations in paraview. For the past year I have previosuly followed the exact same steps to make the calculation of elevation (coordZ - Sealevel) with my files and data, but for so…

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## [Plotting a line ON TOP of a surface](https://discourse.paraview.org/t/plotting-a-line-on-top-of-a-surface/11300)

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**Author:** [@axelwang](https://discourse.paraview.org/u/axelwang)\
**Replies:** 5\
**Last updated:** [January 31, 2023, 8:43pm UTC](https://discourse.paraview.org/t/plotting-a-line-on-top-of-a-surface/11300 "2023-01-31T20:43:23Z")

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Hey all, I have been creating visualizations like below. It has two vtk files. The background wavefield+mesh is one vtk file created using pyvtk.UnstructuredGrid(list(zip(x, y, z)),quad=kwargs\["connect"\]) and the bla…

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## [Nearest Neighbour Averaging](https://discourse.paraview.org/t/nearest-neighbour-averaging/11212)

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**Author:** [@Matthew](https://discourse.paraview.org/u/Matthew)\
**Replies:** 4\
**Last updated:** [January 31, 2023, 6:22pm UTC](https://discourse.paraview.org/t/nearest-neighbour-averaging/11212 "2023-01-31T18:22:48Z")

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Hello, I have been scouring the web to determine how to average a cell based on its nearest neighbours using ParaView, however, I have not yielded any results. My goal is to take a cell of interest, cell(x,y,z), and fin…

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## [Compilation of superbuild with a previous version](https://discourse.paraview.org/t/compilation-of-superbuild-with-a-previous-version/11303)

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**Author:** [@Captain\_Convergence](https://discourse.paraview.org/u/Captain_Convergence)\
**Replies:** 6\
**Last updated:** [January 31, 2023, 4:50pm UTC](https://discourse.paraview.org/t/compilation-of-superbuild-with-a-previous-version/11303 "2023-01-31T16:50:41Z")

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Dear support, I am having problems with compiling the superbuld with a previous version. Firstly, it doesn’t seem to compile the paraview binary that calls the GUI in the folder /install/bin. Secondly some readers are n…

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## [Animate line plot in time](https://discourse.paraview.org/t/animate-line-plot-in-time/11305)

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**Author:** [@fra](https://discourse.paraview.org/u/fra)\
**Replies:** 0\
**Last updated:** [January 31, 2023, 1:33pm UTC](https://discourse.paraview.org/t/animate-line-plot-in-time/11305 "2023-01-31T13:33:36Z")

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Hi, I am trying to do something that I think should be possible, but I don’t find a nice way of doing it. I have a series of CSV files that represent the position of particles in time. I can use the TableToPoints and th…

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## [ParaView 5.11 vs 5.6](https://discourse.paraview.org/t/paraview-5-11-vs-5-6/11261)

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**Author:** [@Ali\_Rahnama](https://discourse.paraview.org/u/Ali_Rahnama)\
**Replies:** 12\
**Last updated:** [January 31, 2023, 12:54am UTC](https://discourse.paraview.org/t/paraview-5-11-vs-5-6/11261 "2023-01-31T00:54:34Z")

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Why ParaView 5.11 is much slower compared to 5.6? For a simple geometry (.obj file) loading case I tried both of them, and 5.6 is much faster.

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## [How to save the model image after "resampling to image" filter](https://discourse.paraview.org/t/how-to-save-the-model-image-after-resampling-to-image-filter/11295)

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**Author:** [@Rokie](https://discourse.paraview.org/u/Rokie)\
**Replies:** 0\
**Last updated:** [January 30, 2023, 9:48am UTC](https://discourse.paraview.org/t/how-to-save-the-model-image-after-resampling-to-image-filter/11295 "2023-01-30T09:48:10Z")

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Hai, I have a plot with sampling dimensions ‘960x540’ made after using the ‘resampling to image filter’. Is it possible to save the image (960x540) alone without saving the entire screen?

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## [Pb with PointDataToCellData with categorical data](https://discourse.paraview.org/t/pb-with-pointdatatocelldata-with-categorical-data/11291)

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**Author:** [@Loic](https://discourse.paraview.org/u/Loic)\
**Replies:** 2\
**Last updated:** [January 30, 2023, 8:36am UTC](https://discourse.paraview.org/t/pb-with-pointdatatocelldata-with-categorical-data/11291 "2023-01-30T08:36:36Z")

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Hi, I’m trying to use the PointDataToCellData filter but it seems that this filter produces no output when I activate the “Categorical Data” option. Is there something special to take care off with that option ? Here …

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## [Problem loading Plot3D solution file](https://discourse.paraview.org/t/problem-loading-plot3d-solution-file/11079)

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**Author:** [@drmillman](https://discourse.paraview.org/u/drmillman)\
**Replies:** 6\
**Last updated:** [January 28, 2023, 9:37pm UTC](https://discourse.paraview.org/t/problem-loading-plot3d-solution-file/11079 "2023-01-28T21:37:51Z")

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I am using Paraview 5.11.0 on a Mac Powerbook Pro running macOS Ventura 13.1. I generated a Plot3D ramp.xyz file and a ramp.q file from my Fortran90 CFD code. The ramp.xyz file loads just fine and I’m able to display it…

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## [Visualizing a single cell from data point!](https://discourse.paraview.org/t/visualizing-a-single-cell-from-data-point/10672)

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**Author:** [@Cavid\_Azimi](https://discourse.paraview.org/u/Cavid_Azimi)\
**Replies:** 9\
**Last updated:** [January 27, 2023, 8:34pm UTC](https://discourse.paraview.org/t/visualizing-a-single-cell-from-data-point/10672 "2023-01-27T20:34:16Z")

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When I filter my data with threshold filtering for one attribute, sometimes only one point have that attribute in aspecific range. I have problem visualizing a single cell! When I check “All Scalars”, it does not show an…

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## [Pareview reads my single file fine but not as group!](https://discourse.paraview.org/t/pareview-reads-my-single-file-fine-but-not-as-group/11281)

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**Author:** [@Cavid\_Azimi](https://discourse.paraview.org/u/Cavid_Azimi)\
**Replies:** 4\
**Last updated:** [January 27, 2023, 7:42pm UTC](https://discourse.paraview.org/t/pareview-reads-my-single-file-fine-but-not-as-group/11281 "2023-01-27T19:42:32Z")

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Paraview reads single file without asking any specific reader and it works perfectly fine. However, when I want to read the files as group, it asks reader to choose and I have no idea what to choose?! I check most of the…

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## [Best file format for volumes defined by surfaces](https://discourse.paraview.org/t/best-file-format-for-volumes-defined-by-surfaces/11286)

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**Author:** [@mirceaolaru](https://discourse.paraview.org/u/mirceaolaru)\
**Replies:** 1\
**Last updated:** [January 27, 2023, 4:39pm UTC](https://discourse.paraview.org/t/best-file-format-for-volumes-defined-by-surfaces/11286 "2023-01-27T16:39:02Z")

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Hello, I am a new ParaView user. I have a file which i want to read. It is essentially a Finite Volume mesh. The mesh is written with a custom software and I would like to be able to visualize the mesh using ParaView. T…

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## [Does anyone look at the frustum resulting from Select Cells Through/Select Points Through?](https://discourse.paraview.org/t/does-anyone-look-at-the-frustum-resulting-from-select-cells-through-select-points-through/9004)

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**Author:** [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)\
**Replies:** 8\
**Last updated:** [January 27, 2023, 3:58pm UTC](https://discourse.paraview.org/t/does-anyone-look-at-the-frustum-resulting-from-select-cells-through-select-points-through/9004 "2023-01-27T15:58:58Z")

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In the Find Data dialog, there is an option to show the frustum defined by a Select Cells Through or Select Points Through operation. A checkable button controls the visibility of the frustum, and is highlighted blue in …

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## [Subtract a reference cell value at height z from all cell values at that height](https://discourse.paraview.org/t/subtract-a-reference-cell-value-at-height-z-from-all-cell-values-at-that-height/11284)

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**Author:** [@minecraftgp](https://discourse.paraview.org/u/minecraftgp)\
**Replies:** 0\
**Last updated:** [January 27, 2023, 12:34pm UTC](https://discourse.paraview.org/t/subtract-a-reference-cell-value-at-height-z-from-all-cell-values-at-that-height/11284 "2023-01-27T12:34:41Z")

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Hi I would like to know if it is possible to do the following in paraview: Subtract a reference cell value at height z from all cell values at that height, and repeat such step for every heights of the domain

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## [Smaller grid](https://discourse.paraview.org/t/smaller-grid/11274)

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**Author:** [@Crown](https://discourse.paraview.org/u/Crown)\
**Replies:** 0\
**Last updated:** [January 26, 2023, 5:21am UTC](https://discourse.paraview.org/t/smaller-grid/11274 "2023-01-26T05:21:20Z")

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Hello guys, I am trying to use the Delaunay3D filter option to generate a 3D view of my data. When I obtained the 3D view, the grid seemed to be too large. Is there a way to use a smaller/finer grid in ParaView? Thank …

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## [unable to find reader for vtu(or vtk) ||Paraview11||OS:Windows11](https://discourse.paraview.org/t/unable-to-find-reader-for-vtu-or-vtk-paraview11-os-windows11/11267)

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**Author:** [@Ratul\_Sabui](https://discourse.paraview.org/u/Ratul_Sabui)\
**Replies:** 2\
**Last updated:** [January 25, 2023, 10:48am UTC](https://discourse.paraview.org/t/unable-to-find-reader-for-vtu-or-vtk-paraview11-os-windows11/11267 "2023-01-25T10:48:34Z")

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Paraview 11 installed on Windows 11 is unable to find a reader for vtu or vtk files. The file size (unlike previous issues on this forum) is just a few MB. The vtk files have been generated using the vtk library in pyth…

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## [Reading custom property from PLY file](https://discourse.paraview.org/t/reading-custom-property-from-ply-file/11260)

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**Author:** [@Jon](https://discourse.paraview.org/u/Jon)\
**Replies:** 2\
**Last updated:** [January 25, 2023, 8:52am UTC](https://discourse.paraview.org/t/reading-custom-property-from-ply-file/11260 "2023-01-25T08:52:24Z")

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Hello, I’ve got a PLY file with a custom property called signed\_distance for each face of the mesh, and I’d like to use that property with a color map in ParaView. I can’t figure out how to access this property anywhere …

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## [File reader for SCHISM ocean model](https://discourse.paraview.org/t/file-reader-for-schism-ocean-model/11228)

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**Author:** [@Jeong](https://discourse.paraview.org/u/Jeong)\
**Replies:** 3\
**Last updated:** [January 24, 2023, 5:05pm UTC](https://discourse.paraview.org/t/file-reader-for-schism-ocean-model/11228 "2023-01-24T17:05:58Z")

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Hello, I am a totally beginner in the paraview. Please understand me even my question is a little weird. I’d like to visualize SCHISM ocean model result using the paraview. But, it seems that there’s no file reader f…

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## [Stress direction in saved data (.csv)](https://discourse.paraview.org/t/stress-direction-in-saved-data-csv/11245)

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**Author:** [@sandyITS](https://discourse.paraview.org/u/sandyITS)\
**Replies:** 5\
**Last updated:** [January 24, 2023, 3:26pm UTC](https://discourse.paraview.org/t/stress-direction-in-saved-data-csv/11245 "2023-01-24T15:26:07Z")

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Hi everyone… I’ve extract or SaveData to csv. In the csv file, there are 9 stress types (Stress0 to Stress8 and StressMagnitude). Could anyone please help me, where can I find the explanation of these stresses especiall…

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## [Surface LIC Darkness](https://discourse.paraview.org/t/surface-lic-darkness/11241)

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**Author:** [@Neurospasm](https://discourse.paraview.org/u/Neurospasm)\
**Replies:** 0\
**Last updated:** [January 24, 2023, 1:05am UTC](https://discourse.paraview.org/t/surface-lic-darkness/11241 "2023-01-24T01:05:06Z")

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Hello, I’m having an issue with Surface LIC darkness when using pvpython (version 5.9.1). I’ve been using pvpython to automate two CFD cut-plane screenshots. I apply the same legend colorbar limits and discretization t…

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## [Question about updating plots automatically](https://discourse.paraview.org/t/question-about-updating-plots-automatically/11238)

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**Author:** [@allendu1988](https://discourse.paraview.org/u/allendu1988)\
**Replies:** 2\
**Last updated:** [January 23, 2023, 4:17pm UTC](https://discourse.paraview.org/t/question-about-updating-plots-automatically/11238 "2023-01-23T16:17:02Z")

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I first use ParaView to open a bunch of layouts to plot some data. Those data will be changed if I run some other scripts in the background, when the ParaView GUI is still open. Is there a way to automatically update th…

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## [Segmentation fault. Loguru caught a signal: SIGSEGV](https://discourse.paraview.org/t/segmentation-fault-loguru-caught-a-signal-sigsegv/11148)

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**Author:** [@FanWang10](https://discourse.paraview.org/u/FanWang10)\
**Replies:** 24\
**Last updated:** [January 22, 2023, 11:34pm UTC](https://discourse.paraview.org/t/segmentation-fault-loguru-caught-a-signal-sigsegv/11148 "2023-01-22T23:34:59Z")

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Hello, My c++ code can export data to .vtu file. I tried to visualize some result via paraview. However, when I click “Apply”, paraview closed itself. Could anyone give me some suggestions on how to solve it? Thank you…

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## [undefined reference to \`glXQueryVersion' with ParaView 5.7.0RC1 and EGL combination](https://discourse.paraview.org/t/undefined-reference-to-glxqueryversion-with-paraview-5-7-0rc1-and-egl-combination/2196)

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**Author:** [@uturuncoglu](https://discourse.paraview.org/u/uturuncoglu)\
**Replies:** 6\
**Last updated:** [January 22, 2023, 7:09pm UTC](https://discourse.paraview.org/t/undefined-reference-to-glxqueryversion-with-paraview-5-7-0rc1-and-egl-combination/2196 "2023-01-22T19:09:58Z")

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Hi, I am getting following error when I try to install ParaView 5.7.0RC1 with EGL support, \[ 95%\] Building CXX object VTK/Rendering/OpenGL2/CMakeFiles/vtkProbeOpenGLVersion.dir/vtkProbeOpenGLVersion.cxx.o \[ 95%\] Linki…

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## [Mouse Interaction (paraview vs pvpython)](https://discourse.paraview.org/t/mouse-interaction-paraview-vs-pvpython/11173)

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**Author:** [@qasimta](https://discourse.paraview.org/u/qasimta)\
**Replies:** 4\
**Last updated:** [January 22, 2023, 11:56am UTC](https://discourse.paraview.org/t/mouse-interaction-paraview-vs-pvpython/11173 "2023-01-22T11:56:23Z")

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Hello, I’m a beginner to paraview python development. I have loaded a 3D grid model using a custom reader. When the model is loaded in paraview the mouse interaction is totally different than when I load the same model…

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## [legend color of type turbo -- can I make this to the default legend?](https://discourse.paraview.org/t/legend-color-of-type-turbo-can-i-make-this-to-the-default-legend/11215)

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**Author:** [@simonw](https://discourse.paraview.org/u/simonw)\
**Replies:** 3\
**Last updated:** [January 20, 2023, 3:13pm UTC](https://discourse.paraview.org/t/legend-color-of-type-turbo-can-i-make-this-to-the-default-legend/11215 "2023-01-20T15:13:44Z")

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All, cool to warm is the default legend color for all the fields in my data set. I go to choose preset and can change the legend to whatever type of legend I want. This is quite pesky to do that individually for all my …

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## [Why do the displayed values in ParaView not correspond to the same matrix plotted in MATLAB?](https://discourse.paraview.org/t/why-do-the-displayed-values-in-paraview-not-correspond-to-the-same-matrix-plotted-in-matlab/11217)

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**Author:** [@jones123](https://discourse.paraview.org/u/jones123)\
**Replies:** 5\
**Last updated:** [January 20, 2023, 3:13pm UTC](https://discourse.paraview.org/t/why-do-the-displayed-values-in-paraview-not-correspond-to-the-same-matrix-plotted-in-matlab/11217 "2023-01-20T15:13:05Z")

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Hi all, I have a 3D matrix of the surface field of a glacier that I want to plot using ParaView. The plotting itself is good (see attachment 1), but I have noticed that the range of the velocities changed. In ParaView, …

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## [Paraview crash 3 seconds after opening (windows server)](https://discourse.paraview.org/t/paraview-crash-3-seconds-after-opening-windows-server/11188)

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**Author:** [@tacilib852](https://discourse.paraview.org/u/tacilib852)\
**Replies:** 3\
**Last updated:** [January 20, 2023, 8:23am UTC](https://discourse.paraview.org/t/paraview-crash-3-seconds-after-opening-windows-server/11188 "2023-01-20T08:23:26Z")

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Hello, I am trying to install Paraview on a machine running on AWS, but when I try to open it, the software opens for a few seconds and then just crashes. I also tried with previous versions of Paraview and I have the s…

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## [Particle Path/Tracer in Paraview](https://discourse.paraview.org/t/particle-path-tracer-in-paraview/11209)

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**Author:** [@safal3](https://discourse.paraview.org/u/safal3)\
**Replies:** 1\
**Last updated:** [January 20, 2023, 7:57am UTC](https://discourse.paraview.org/t/particle-path-tracer-in-paraview/11209 "2023-01-20T07:57:38Z")

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Hi, I have used the icoUncoupledKinematicParcelFoam-solver from OpenFOAM to simulate the transport of a particle cloud. Now I want to display the paths of individual praticles in Paraview. I tried the Particle Path and…

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## [Automating Post-Processing in Paraview](https://discourse.paraview.org/t/automating-post-processing-in-paraview/11180)

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**Author:** [@Matthew](https://discourse.paraview.org/u/Matthew)\
**Replies:** 4\
**Last updated:** [January 20, 2023, 7:54am UTC](https://discourse.paraview.org/t/automating-post-processing-in-paraview/11180 "2023-01-20T07:54:01Z")

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Hello, I am new to both the Paraview software and this forum, so if I am missing details/information please let me know. I am looking to fully automate my post-processing algorithm in Paraview using Python. At the mome…

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