# ParaView Support

**URL:** https://discourse.paraview.org/c/paraview-support/7.md?page=124

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

**Page:** 125

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## [Calculating Mass Flow / Surface Flow](https://discourse.paraview.org/t/calculating-mass-flow-surface-flow/8493)

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**Author:** [@SCRO1022](https://discourse.paraview.org/u/SCRO1022)\
**Replies:** 5\
**Last updated:** [November 29, 2021, 3:06pm UTC](https://discourse.paraview.org/t/calculating-mass-flow-surface-flow/8493 "2021-11-29T15:06:30Z")

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Hello, i am trying to calculate the mass flow / surface flow through a slice inside a pipe, as you can see in this picture. I know, there is a SurfaceFlow filter which should actually do this job for me, but i think…

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## [Area of slice : CellSize vs Integrate Variables](https://discourse.paraview.org/t/area-of-slice-cellsize-vs-integrate-variables/5686)

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**Author:** [@kirit\_101](https://discourse.paraview.org/u/kirit_101)\
**Replies:** 6\
**Last updated:** [November 29, 2021, 1:50pm UTC](https://discourse.paraview.org/t/area-of-slice-cellsize-vs-integrate-variables/5686 "2021-11-29T13:50:52Z")

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I need the area of my cell data as a variable to calculate area-weighted average values. To get that I am using Filter\> CellSize \> Compute Area. This gives me area on my cell data. I am exporting these values in csv file…

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## [Save animation](https://discourse.paraview.org/t/save-animation/8503)

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**Author:** [@Aakash](https://discourse.paraview.org/u/Aakash)\
**Replies:** 2\
**Last updated:** [November 29, 2021, 10:16am UTC](https://discourse.paraview.org/t/save-animation/8503 "2021-11-29T10:16:20Z")

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Hello Paraview community, Is it possible to save an animation upto a certain time step ? With regards, Aakash

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## [Making a Time independent Variable](https://discourse.paraview.org/t/making-a-time-independent-variable/8505)

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**Author:** [@ramen\_newdals](https://discourse.paraview.org/u/ramen_newdals)\
**Replies:** 1\
**Last updated:** [November 29, 2021, 9:28am UTC](https://discourse.paraview.org/t/making-a-time-independent-variable/8505 "2021-11-29T09:28:27Z")

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Hello All, I am working on some particle tracking and I need to count the number of particle impacts I get on my mesh. I have a programable python filter working that is able to detect if a particle hits a point on my …

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## [Visualizing a subset of a 3D volume rendering](https://discourse.paraview.org/t/visualizing-a-subset-of-a-3d-volume-rendering/8496)

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**Author:** [@dashp7](https://discourse.paraview.org/u/dashp7)\
**Replies:** 3\
**Last updated:** [November 29, 2021, 12:22am UTC](https://discourse.paraview.org/t/visualizing-a-subset-of-a-3d-volume-rendering/8496 "2021-11-29T00:22:05Z")

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Hi, I am trying to generate a volume rendering of a 128^3 dataset. Though I am able to generate a volume rendering of the whole dataset, I am unable to do so for a selected region, for ex: \[1:126\]x\[1:126\]x\[1:126\](I wan…

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## [Visualise relative errors by applying thesholding](https://discourse.paraview.org/t/visualise-relative-errors-by-applying-thesholding/8502)

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**Author:** [@chathu](https://discourse.paraview.org/u/chathu)\
**Replies:** 1\
**Last updated:** [November 28, 2021, 4:22am UTC](https://discourse.paraview.org/t/visualise-relative-errors-by-applying-thesholding/8502 "2021-11-28T04:22:43Z")

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I have two volumetric meshes in .vtk format (i.e. ground-truth and predicted versions) and I want to visualise the relative error (or error ratio per vertex) by thresholding on deformations for example deformation less t…

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## [Compiling headless ParaView with OSMesa](https://discourse.paraview.org/t/compiling-headless-paraview-with-osmesa/8377)

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**Author:** [@robertsawko](https://discourse.paraview.org/u/robertsawko)\
**Replies:** 13\
**Last updated:** [November 28, 2021, 1:12am UTC](https://discourse.paraview.org/t/compiling-headless-paraview-with-osmesa/8377 "2021-11-28T01:12:26Z")

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I am playing with in-situ visualisation and I have made some progress with EGL on GPU nodes, but would now like to enable it on every CPU-only nodes as well. I believe this should be possible with the use of OSMesa, but …

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## [orient custom glyph](https://discourse.paraview.org/t/orient-custom-glyph/8492)

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**Author:** [@mbanaei](https://discourse.paraview.org/u/mbanaei)\
**Replies:** 2\
**Last updated:** [November 26, 2021, 11:09am UTC](https://discourse.paraview.org/t/orient-custom-glyph/8492 "2021-11-26T11:09:33Z")

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Hi everyone, when I am using the custom glyph orient option, the objects are not only rotating but are also moving. I am guessing that they are oriented along a certain axis and that is why they are moving. However, I w…

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## [Remote\_visualization\_using\_paraview](https://discourse.paraview.org/t/remote-visualization-using-paraview/8494)

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**Author:** [@Aakash](https://discourse.paraview.org/u/Aakash)\
**Replies:** 2\
**Last updated:** [November 26, 2021, 8:22am UTC](https://discourse.paraview.org/t/remote-visualization-using-paraview/8494 "2021-11-26T08:22:05Z")

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Hi everyone, Could anyone please suggest me if there is a possibility to do remote visualization using paraview? I do all my simulations on a remote workstation connected to my PC via ssh key. It would be nice if there …

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## [white lines in vector graphics export](https://discourse.paraview.org/t/white-lines-in-vector-graphics-export/8442)

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**Author:** [@Aakash](https://discourse.paraview.org/u/Aakash)\
**Replies:** 11\
**Last updated:** [November 25, 2021, 11:51pm UTC](https://discourse.paraview.org/t/white-lines-in-vector-graphics-export/8442 "2021-11-25T23:51:26Z")

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Dear Paraview community, I use Paraview 5.9.1. I’m encountering issues while exporting the svg plots from paraview into ms word. The plots are fine in paraview window but in word I see unwanted very thin whitish slant …

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## [Plot boundary data 2D](https://discourse.paraview.org/t/plot-boundary-data-2d/8488)

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**Author:** [@GDt](https://discourse.paraview.org/u/GDt)\
**Replies:** 0\
**Last updated:** [November 25, 2021, 9:42am UTC](https://discourse.paraview.org/t/plot-boundary-data-2d/8488 "2021-11-25T09:42:18Z")

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Hi, I try to extract boundary datas on a 2D mesh using “ExtractSurface” and “FeatureEdges” with only “boundary edges” selected. It returns all the edges of the mesh including those inside the mesh. How can i obtain onl…

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## [Plot global data vs point data](https://discourse.paraview.org/t/plot-global-data-vs-point-data/8462)

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**Author:** [@wascott](https://discourse.paraview.org/u/wascott)\
**Replies:** 6\
**Last updated:** [November 25, 2021, 9:06am UTC](https://discourse.paraview.org/t/plot-global-data-vs-point-data/8462 "2021-11-25T09:06:17Z")

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From a user: I was wondering if you could help me create a 2D plot in Paraview. I want to plot the reaction force (which I have defined as a global output variable in my input deck) vs. displacement at a specific node/…

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## [Change number of legend ticks](https://discourse.paraview.org/t/change-number-of-legend-ticks/8483)

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**Author:** [@Popcorn](https://discourse.paraview.org/u/Popcorn)\
**Replies:** 3\
**Last updated:** [November 24, 2021, 5:36pm UTC](https://discourse.paraview.org/t/change-number-of-legend-ticks/8483 "2021-11-24T17:36:38Z")

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Hi, I would like to format and export this legend: I want the ticks (and their labels) to correspond to the color discretisation (done in the color map editor). How can I do that ? I only found a way to manually s…

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## [subtracting line data from a plane](https://discourse.paraview.org/t/subtracting-line-data-from-a-plane/8468)

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**Author:** [@kbshariff](https://discourse.paraview.org/u/kbshariff)\
**Replies:** 2\
**Last updated:** [November 24, 2021, 12:28pm UTC](https://discourse.paraview.org/t/subtracting-line-data-from-a-plane/8468 "2021-11-24T12:28:01Z")

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Hello, I have a channel flow, I would like to subtract the turbulent intensity at the side wall in the whole domain. How can I do that with paraview calculator? I want to the the contour plot of this value I = Iw^2 -…

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## [Separate window to show only scalar bar, annotations, coordinate system etc..](https://discourse.paraview.org/t/separate-window-to-show-only-scalar-bar-annotations-coordinate-system-etc/8472)

<div class="topic-metadata">

**Author:** [@SCRO1022](https://discourse.paraview.org/u/SCRO1022)\
**Replies:** 7\
**Last updated:** [November 24, 2021, 12:10pm UTC](https://discourse.paraview.org/t/separate-window-to-show-only-scalar-bar-annotations-coordinate-system-etc/8472 "2021-11-24T12:10:48Z")

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Hey Guys, i hope you can help me with this issue. I am trying to make some animation, but i dont want the scalar bar to be inside the picture. Instead i want it to be in a separate defined window where no geometry is sh…

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## [pvserver on multiple nodes](https://discourse.paraview.org/t/pvserver-on-multiple-nodes/8477)

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**Author:** [@pavel](https://discourse.paraview.org/u/pavel)\
**Replies:** 0\
**Last updated:** [November 24, 2021, 8:59am UTC](https://discourse.paraview.org/t/pvserver-on-multiple-nodes/8477 "2021-11-24T08:59:51Z")

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Hello, I try to run pvserver on two nodes (with Ubuntu 20.04) using mpiexec -n 2 --hosts hostname1,hostname2 pvserver and get an error: =========== 2021-11-24 11:32:52.094 ( 5.146s) \[ 7B911C40\] vtkMPICommuni…

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## [Mass-weighted Histogram](https://discourse.paraview.org/t/mass-weighted-histogram/8458)

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**Author:** [@Reid\_Ginoza\_ARA](https://discourse.paraview.org/u/Reid_Ginoza_ARA)\
**Replies:** 3\
**Last updated:** [November 24, 2021, 8:54am UTC](https://discourse.paraview.org/t/mass-weighted-histogram/8458 "2021-11-24T08:54:10Z")

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I’m using a dataset with AMR, and I’d like to create a histogram (for each time step) of the pressure. But what I know of the histogram filter only allows me to use the counts of the cells for the height of the bars in t…

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## [servermanager.Register in PV 5.10.0](https://discourse.paraview.org/t/servermanager-register-in-pv-5-10-0/8437)

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**Author:** [@Venke](https://discourse.paraview.org/u/Venke)\
**Replies:** 2\
**Last updated:** [November 24, 2021, 7:46am UTC](https://discourse.paraview.org/t/servermanager-register-in-pv-5-10-0/8437 "2021-11-24T07:46:31Z")

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Hej, when using texture images in a session which will later be copied to another drive/directory I frequently used the code below to be able to keep the image (using the “Search files uder specified directory” on loadi…

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## [Paraview\_setting\_save\_to\_default](https://discourse.paraview.org/t/paraview-setting-save-to-default/8459)

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**Author:** [@Aakash](https://discourse.paraview.org/u/Aakash)\
**Replies:** 7\
**Last updated:** [November 23, 2021, 10:55pm UTC](https://discourse.paraview.org/t/paraview-setting-save-to-default/8459 "2021-11-23T22:55:17Z")

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Hello, I use Paraview 5.9.1 version. I am trying to save the following screenshot settings as default by clicking the ‘set as default’ button but it always reverts to the factory settings. Could anyone please help! T…

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## [Mesh alignment with 3D-CT volume](https://discourse.paraview.org/t/mesh-alignment-with-3d-ct-volume/8465)

<div class="topic-metadata">

**Author:** [@chathu](https://discourse.paraview.org/u/chathu)\
**Replies:** 1\
**Last updated:** [November 23, 2021, 4:06pm UTC](https://discourse.paraview.org/t/mesh-alignment-with-3d-ct-volume/8465 "2021-11-23T16:06:45Z")

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I have plotted the error for example, the difference between the ground-truth and the predicted volumetric meshes (.vtk format) on the predicted mesh / mesh coordinates with a different colour (colour code based on displ…

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## [Trace not working, Paraview 5.7.0, Ubuntu 20.04.3](https://discourse.paraview.org/t/trace-not-working-paraview-5-7-0-ubuntu-20-04-3/8455)

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**Author:** [@sdcycling](https://discourse.paraview.org/u/sdcycling)\
**Replies:** 2\
**Last updated:** [November 23, 2021, 2:22pm UTC](https://discourse.paraview.org/t/trace-not-working-paraview-5-7-0-ubuntu-20-04-3/8455 "2021-11-23T14:22:12Z")

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Hello, When I try to start a trace, I get the following errors: ERROR: In /build/paraview-vlxewD/paraview-5.7.0/ParaViewCore/ServerManager/Core/vtkSMTrace.cxx, line 76 vtkSMTrace (0x555764841a00): Failed to import para…

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## [Higher versions of paraview do not display colors when drawing VTK files](https://discourse.paraview.org/t/higher-versions-of-paraview-do-not-display-colors-when-drawing-vtk-files/8463)

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**Author:** [@code-whale](https://discourse.paraview.org/u/code-whale)\
**Replies:** 4\
**Last updated:** [November 23, 2021, 10:18am UTC](https://discourse.paraview.org/t/higher-versions-of-paraview-do-not-display-colors-when-drawing-vtk-files/8463 "2021-11-23T10:18:58Z")

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In the MAC system, I installed version 5.9 and above. After testing, I found that the color cannot be displayed when the image is closer, but only white. Is this a bug or does the new version need some settings? I presen…

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## [extract cells by type from unstructured grid](https://discourse.paraview.org/t/extract-cells-by-type-from-unstructured-grid/8443)

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**Author:** [@Rob777](https://discourse.paraview.org/u/Rob777)\
**Replies:** 2\
**Last updated:** [November 22, 2021, 8:32am UTC](https://discourse.paraview.org/t/extract-cells-by-type-from-unstructured-grid/8443 "2021-11-22T08:32:55Z")

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Hello Everyone, I have to extract from an unstructured grid .vtu a region defined by cells type. I have to extract all the wedge cells. Doing this by selecting thousands of cell in the spreadsheet view wears me out. H…

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## [using NVIDIA device of a server in clinet-server mode](https://discourse.paraview.org/t/using-nvidia-device-of-a-server-in-clinet-server-mode/8356)

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**Author:** [@Gwang-Jin\_Lee](https://discourse.paraview.org/u/Gwang-Jin_Lee)\
**Replies:** 8\
**Last updated:** [November 20, 2021, 2:36pm UTC](https://discourse.paraview.org/t/using-nvidia-device-of-a-server-in-clinet-server-mode/8356 "2021-11-20T14:36:31Z")

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Hello, I would like to connect from my macbook to ubuntu server having NVIDIA graphic card. But I met two problems: First, I couldn’t use “OptiX pathtracer” when I connected to ubuntu server. Second, I couldn’t use…

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## [Scatter Plot is crashing](https://discourse.paraview.org/t/scatter-plot-is-crashing/8428)

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**Author:** [@wascott](https://discourse.paraview.org/u/wascott)\
**Replies:** 2\
**Last updated:** [November 18, 2021, 9:41pm UTC](https://discourse.paraview.org/t/scatter-plot-is-crashing/8428 "2021-11-18T21:41:01Z")

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Hi guys, Scatter plot is crashing on a reasonably large dataset for a user. Linux, 5.9.1 and 5.10.0-RC1, remote server (16 ranks). Dataset is about 2 million cells, 512 files. Server side looks healthy. Crash is on t…

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## [Trying to use ExtractSubset filter, but off axis](https://discourse.paraview.org/t/trying-to-use-extractsubset-filter-but-off-axis/8433)

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**Author:** [@Andrew\_Parrett](https://discourse.paraview.org/u/Andrew_Parrett)\
**Replies:** 1\
**Last updated:** [November 18, 2021, 7:40pm UTC](https://discourse.paraview.org/t/trying-to-use-extractsubset-filter-but-off-axis/8433 "2021-11-18T19:40:55Z")

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I am trying to use the ExtractSubset filters to highlight specific parts of a VTI dataset. The filter is working fine for regions that are aligned with the axis of the VTI files, but I have some rectangular objects that …

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## [Surface to surface distance](https://discourse.paraview.org/t/surface-to-surface-distance/8422)

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**Author:** [@Chambers](https://discourse.paraview.org/u/Chambers)\
**Replies:** 4\
**Last updated:** [November 18, 2021, 5:29pm UTC](https://discourse.paraview.org/t/surface-to-surface-distance/8422 "2021-11-18T17:29:16Z")

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Hello, I am searching for guidance on using ParaView as done in a research paper. I attached the figures from the paper. I want to use point cloud analysis to calculate linear deviation from a scanned cut surface to a p…

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## [Paraview with EGL.](https://discourse.paraview.org/t/paraview-with-egl/8431)

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**Author:** [@Luis\_Carlos\_Carneiro](https://discourse.paraview.org/u/Luis_Carlos_Carneiro)\
**Replies:** 0\
**Last updated:** [November 18, 2021, 2:57pm UTC](https://discourse.paraview.org/t/paraview-with-egl/8431 "2021-11-18T14:57:45Z")

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Dear All, How is the OpenGL memory management with Paraview with EGL? Can we set the video memory available? Is that OpenGL maximum available memory, dynamic? Available as needed? “nvidia-smi” reports or not OpenGL (EG…

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## [Drag Mismatch with OpenFOAM](https://discourse.paraview.org/t/drag-mismatch-with-openfoam/8430)

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**Author:** [@twnsplr](https://discourse.paraview.org/u/twnsplr)\
**Replies:** 0\
**Last updated:** [November 18, 2021, 9:16am UTC](https://discourse.paraview.org/t/drag-mismatch-with-openfoam/8430 "2021-11-18T09:16:51Z")

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I am trying to calculate the drag on the wing using OpenFOAM. I used the OF forces function and got some drag values. I tried the procedure shown in this https://www.youtube.com/watch?v=J944HOj\_4b0&t=291s video to find t…

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## [Maximum size of a jvec file](https://discourse.paraview.org/t/maximum-size-of-a-jvec-file/7832)

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**Author:** [@mariavd](https://discourse.paraview.org/u/mariavd)\
**Replies:** 2\
**Last updated:** [November 18, 2021, 6:57am UTC](https://discourse.paraview.org/t/maximum-size-of-a-jvec-file/7832 "2021-11-18T06:57:10Z")

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Hello, I have a 11 GB vti file that is taking forever to open in version 5.9.1 on Windows with MPI on. After 2 hours I killed the process and tried the latest nightly version without MPI but it was stuck, too. An older …

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