# ParaView Support

**URL:** https://discourse.paraview.org/c/paraview-support/7.md?page=194

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**Page:** 195

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## ["vtkSocketCommunicator::GetVersion() returns different values on the two connecting processes"](https://discourse.paraview.org/t/vtksocketcommunicator-getversion-returns-different-values-on-the-two-connecting-processes/3347)

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**Author:** [@XavierStuvw](https://discourse.paraview.org/u/XavierStuvw)\
**Replies:** 3\
**Last updated:** [January 16, 2020, 1:33pm UTC](https://discourse.paraview.org/t/vtksocketcommunicator-getversion-returns-different-values-on-the-two-connecting-processes/3347 "2020-01-16T13:33:59Z")

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What does an error message “vtkSocketCommunicator::GetVersion() returns different values on the two connecting processes” refer to? This post is a branch of https://discourse.paraview.org/t/reverse-client-server-connect…

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## [How to overlay Google Map image onto elevation data from a vtk file](https://discourse.paraview.org/t/how-to-overlay-google-map-image-onto-elevation-data-from-a-vtk-file/3288)

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**Author:** [@ejtovar](https://discourse.paraview.org/u/ejtovar)\
**Replies:** 12\
**Last updated:** [January 15, 2020, 7:19pm UTC](https://discourse.paraview.org/t/how-to-overlay-google-map-image-onto-elevation-data-from-a-vtk-file/3288 "2020-01-15T19:19:29Z")

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Hi all, I have a vtk file that contains elevation data which I am using for flooding simulations (see attached image). I would like to visualize the respective Google Map image on top of my elevation data. I tried to…

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## [Specify screenshot boundaries in ParaView](https://discourse.paraview.org/t/specify-screenshot-boundaries-in-paraview/3340)

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**Author:** [@panosvar](https://discourse.paraview.org/u/panosvar)\
**Replies:** 5\
**Last updated:** [January 15, 2020, 7:08pm UTC](https://discourse.paraview.org/t/specify-screenshot-boundaries-in-paraview/3340 "2020-01-15T19:08:52Z")

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Hi, I’ve created a simple pipeline where I create geometry and mesh in Salome, then use Elmer to simulate the pressure field, and finally visualize the field in ParaView. Then, I can take a screenshot of this field, how…

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## [Disable camera interaction decimation effect](https://discourse.paraview.org/t/disable-camera-interaction-decimation-effect/3337)

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**Author:** [@banesullivan](https://discourse.paraview.org/u/banesullivan)\
**Replies:** 3\
**Last updated:** [January 15, 2020, 1:52am UTC](https://discourse.paraview.org/t/disable-camera-interaction-decimation-effect/3337 "2020-01-15T01:52:53Z")

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I’m not really sure what to call this phenomenon, but anytime I interact with the camera in the rendering scene in ParaView, large meshes appear to be decimated - is there a way to disable this? In the following GIF, th…

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## [Building Paraview on GPU free server](https://discourse.paraview.org/t/building-paraview-on-gpu-free-server/3278)

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**Author:** [@begou](https://discourse.paraview.org/u/begou)\
**Replies:** 10\
**Last updated:** [January 14, 2020, 10:10pm UTC](https://discourse.paraview.org/t/building-paraview-on-gpu-free-server/3278 "2020-01-14T22:10:57Z")

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Hi Paraview users and happy new year! Starting with 2020 I try to build paraview on a server without any GPU and running CentOS7. I found this tutorial https://www.paraview.org/Wiki/ParaView/ParaView\_And\_Mesa\_3D but it …

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## [Cannot compile Paraview 5.4.1](https://discourse.paraview.org/t/cannot-compile-paraview-5-4-1/3239)

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**Author:** [@artemiialessandrini](https://discourse.paraview.org/u/artemiialessandrini)\
**Replies:** 9\
**Last updated:** [January 14, 2020, 3:30pm UTC](https://discourse.paraview.org/t/cannot-compile-paraview-5-4-1/3239 "2020-01-14T15:30:54Z")

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Installing Paraview unsing paraview-superbuild, I’m facing with: \[ 78%\] Completed 'osmesa' \[ 78%\] Built target osmesa Makefile:129: recipe for target 'all' failed My ccmake config is: CMAKE\_INSTALL\_PREFIX=/opt/parav…

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## [Programmable Filter Error](https://discourse.paraview.org/t/programmable-filter-error/3192)

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**Author:** [@Alexandros](https://discourse.paraview.org/u/Alexandros)\
**Replies:** 2\
**Last updated:** [January 14, 2020, 1:51pm UTC](https://discourse.paraview.org/t/programmable-filter-error/3192 "2020-01-14T13:51:51Z")

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Hello everyone, I am new to paraview -and python, my question is the following: I opened a pipeline dataset read by paraview from corresponding xdmf file, then I applied calculator filter twice to calculate two quantit…

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## [Errors when starting to use NVIDIA IndeX](https://discourse.paraview.org/t/errors-when-starting-to-use-nvidia-index/3298)

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**Author:** [@saulhr](https://discourse.paraview.org/u/saulhr)\
**Replies:** 6\
**Last updated:** [January 14, 2020, 11:17am UTC](https://discourse.paraview.org/t/errors-when-starting-to-use-nvidia-index/3298 "2020-01-14T11:17:42Z")

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Following Mathieu Westphal’s instructions I started using ParaView 5.7 in order to use NVIDIA IndeX. I used an OpenFOAM case and got the following messages: nvindex: 1.0 INDEX main warn : Failed to open '/proc/driv…

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## [Run animation of VTK files with version 4.0.1](https://discourse.paraview.org/t/run-animation-of-vtk-files-with-version-4-0-1/3331)

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**Author:** [@Marf](https://discourse.paraview.org/u/Marf)\
**Replies:** 1\
**Last updated:** [January 14, 2020, 11:09am UTC](https://discourse.paraview.org/t/run-animation-of-vtk-files-with-version-4-0-1/3331 "2020-01-14T11:09:32Z")

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time\_1.vtk (252.2 KB) time\_50.vtk (252.2 KB) time\_100.vtk (252.2 KB) time\_150.vtk (252.2 KB) time\_200.vtk (252.2 KB) time\_250.vtk (252.2 KB) time\_300.vtk (252.2 KB) time\_350.vtk (252.2 KB) time\_400.vtk (252.2 KB) time\_45…

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## [2D velocity streamlines look strange](https://discourse.paraview.org/t/2d-velocity-streamlines-look-strange/3322)

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**Author:** [@msjuhasznora](https://discourse.paraview.org/u/msjuhasznora)\
**Replies:** 4\
**Last updated:** [January 13, 2020, 7:02pm UTC](https://discourse.paraview.org/t/2d-velocity-streamlines-look-strange/3322 "2020-01-13T19:02:42Z")

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Hi, could someone please help me with the following? I have a 2D velocity dataset: velocity\_\_vert\_velocity\_degree1\_\_eps\_0.0\_\_nr\_cells\_1800.pvd (217 Bytes) I am curious of the proper result of the StreamTracer filter, b…

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## [Creating streamlines](https://discourse.paraview.org/t/creating-streamlines/3290)

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**Author:** [@nayla\_salvador](https://discourse.paraview.org/u/nayla_salvador)\
**Replies:** 10\
**Last updated:** [January 13, 2020, 3:29pm UTC](https://discourse.paraview.org/t/creating-streamlines/3290 "2020-01-13T15:29:33Z")

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Hello everybody, I have a velocity field where velocities in one region are much higher than in other regions. I wonder if there is any way to plot that can help me in visualizing these results. From what I thought,…

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## [Change in the order of vtk files](https://discourse.paraview.org/t/change-in-the-order-of-vtk-files/3312)

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**Author:** [@Marf](https://discourse.paraview.org/u/Marf)\
**Replies:** 4\
**Last updated:** [January 13, 2020, 2:50pm UTC](https://discourse.paraview.org/t/change-in-the-order-of-vtk-files/3312 "2020-01-13T14:50:07Z")

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I have created vtk files of each time step but the order is very messed up if I load in Paraview. It looks like that How to select with the original order?

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## [EnSight Reader Missing?](https://discourse.paraview.org/t/ensight-reader-missing/3303)

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**Author:** [@cfdnoob](https://discourse.paraview.org/u/cfdnoob)\
**Replies:** 3\
**Last updated:** [January 13, 2020, 12:47pm UTC](https://discourse.paraview.org/t/ensight-reader-missing/3303 "2020-01-13T12:47:29Z")

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When I attempt to load an EnSight case file I get the window asking me which reader I want to use and EnSight Master Server Reader is there but EnSight Reader isn’t. I checked the available plugins but didn’t see anythin…

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## [glyph vs. streamline concept within paraview](https://discourse.paraview.org/t/glyph-vs-streamline-concept-within-paraview/3320)

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**Author:** [@msjuhasznora](https://discourse.paraview.org/u/msjuhasznora)\
**Replies:** 1\
**Last updated:** [January 13, 2020, 10:06am UTC](https://discourse.paraview.org/t/glyph-vs-streamline-concept-within-paraview/3320 "2020-01-13T10:06:12Z")

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Hi, Forgive me if my question sounds silly but I would like to understand something well. I have a 2D velocity field and I want to show better what happens exactly in the flow by using Paraview. Applying the “Glyph” fi…

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## [2D velocity streamlines, filters unavailable](https://discourse.paraview.org/t/2d-velocity-streamlines-filters-unavailable/3313)

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**Author:** [@msjuhasznora](https://discourse.paraview.org/u/msjuhasznora)\
**Replies:** 5\
**Last updated:** [January 12, 2020, 5:12am UTC](https://discourse.paraview.org/t/2d-velocity-streamlines-filters-unavailable/3313 "2020-01-12T05:12:20Z")

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Hi, I have a 2D velocity vector and I would like to visualise the streamlines. As you can see on the attached image, all the filters are greyed out, including the little buttons in the third line. Could someone tell me …

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## [LLVM Compilation error during Paraview compiling on Cray XC40](https://discourse.paraview.org/t/llvm-compilation-error-during-paraview-compiling-on-cray-xc40/3299)

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**Author:** [@dutta-alankar](https://discourse.paraview.org/u/dutta-alankar)\
**Replies:** 8\
**Last updated:** [January 11, 2020, 10:52am UTC](https://discourse.paraview.org/t/llvm-compilation-error-during-paraview-compiling-on-cray-xc40/3299 "2020-01-11T10:52:47Z")

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Hi, I am trying to compile Paraview on a Cray XC40 system from Paraview Superbuild. I have modified a few available scripts in paraview-superbuild package to configure Paraview using cmake 3.16.2. I am attaching my Cmak…

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## [Absolute value ranges and line scaling at image export](https://discourse.paraview.org/t/absolute-value-ranges-and-line-scaling-at-image-export/3309)

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**Author:** [@ptarmigan](https://discourse.paraview.org/u/ptarmigan)\
**Replies:** 4\
**Last updated:** [January 10, 2020, 10:12pm UTC](https://discourse.paraview.org/t/absolute-value-ranges-and-line-scaling-at-image-export/3309 "2020-01-10T22:12:45Z")

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Dear all, I’ve been using ParaView for some years now, but there still are important issues that I never have been able to resolve. Now I’m writing a tutorial about my workflow in ParaView, and before publishing it I ne…

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## [Problem with animating the data from the examples](https://discourse.paraview.org/t/problem-with-animating-the-data-from-the-examples/3311)

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**Author:** [@Marf](https://discourse.paraview.org/u/Marf)\
**Replies:** 2\
**Last updated:** [January 10, 2020, 7:54pm UTC](https://discourse.paraview.org/t/problem-with-animating-the-data-from-the-examples/3311 "2020-01-10T19:54:55Z")

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Hey, I am using the 5.7 version. Every time I click on the properties, the top menu bar disappears and can’t perform the animation. It looks like that Please tell me how to avoid it. Thanks

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## [change background color paraview 5.7.0](https://discourse.paraview.org/t/change-background-color-paraview-5-7-0/3305)

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**Author:** [@nayla\_salvador](https://discourse.paraview.org/u/nayla_salvador)\
**Replies:** 2\
**Last updated:** [January 10, 2020, 6:57pm UTC](https://discourse.paraview.org/t/change-background-color-paraview-5-7-0/3305 "2020-01-10T18:57:36Z")

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Hello, I would like help changing the background color of paraview. I found the following link, but it does not appear as an option in my program to change the background. Do I have to select something?

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## [OpenGL error in centos8 superbuild/ libgl error failed to load swrast driver.](https://discourse.paraview.org/t/opengl-error-in-centos8-superbuild-libgl-error-failed-to-load-swrast-driver/2892)

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**Author:** [@hgropelli](https://discourse.paraview.org/u/hgropelli)\
**Replies:** 4\
**Last updated:** [January 10, 2020, 3:23pm UTC](https://discourse.paraview.org/t/opengl-error-in-centos8-superbuild-libgl-error-failed-to-load-swrast-driver/2892 "2020-01-10T15:23:21Z")

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No matching fbconfigs or visuals found. Libgl error failed to load swrast driver. I dont have my knowlogde of nvida drivers and symlinks but they appear to be correct. cmakecache.pdf (97.8 KB)

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## [Auto execution of a Programmable Filter](https://discourse.paraview.org/t/auto-execution-of-a-programmable-filter/3306)

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**Author:** [@wsherman](https://discourse.paraview.org/u/wsherman)\
**Replies:** 0\
**Last updated:** [January 10, 2020, 2:54pm UTC](https://discourse.paraview.org/t/auto-execution-of-a-programmable-filter/3306 "2020-01-10T14:54:43Z")

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Hello all, My goal is to have an object (a compass) that I can put at the top of my ParaView animation to always show the direction of view. I’ve tried a couple of ways I thought this might work, but have yet to find …

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## [Single Azimuthal Segment Texture Distortion for Earth TextureMaptoSphere](https://discourse.paraview.org/t/single-azimuthal-segment-texture-distortion-for-earth-texturemaptosphere/783)

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**Author:** [@jkulesza](https://discourse.paraview.org/u/jkulesza)\
**Replies:** 11\
**Last updated:** [January 9, 2020, 4:08pm UTC](https://discourse.paraview.org/t/single-azimuthal-segment-texture-distortion-for-earth-texturemaptosphere/783 "2020-01-09T16:08:08Z")

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Background & Issue High-resolution images of the Earth are readily available \[1,2\]. If these are reversed horizontally, they can be directly used with the TextureMaptoSphere filter applied to a sphere source. When mapp…

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## [Plot over line clipping bug](https://discourse.paraview.org/t/plot-over-line-clipping-bug/3098)

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**Author:** [@Rem](https://discourse.paraview.org/u/Rem)\
**Replies:** 14\
**Last updated:** [January 9, 2020, 2:03pm UTC](https://discourse.paraview.org/t/plot-over-line-clipping-bug/3098 "2020-01-09T14:03:13Z")

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Hi all, For some time I’ve been experiencing an issue when plotting over line of xdmf files. As you can see above, the line overlap one another in a funny way, which makes the visualisation really difficult. I had th…

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## [Problem Use value from Programmable filter in trace](https://discourse.paraview.org/t/problem-use-value-from-programmable-filter-in-trace/3289)

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**Author:** [@dolesch](https://discourse.paraview.org/u/dolesch)\
**Replies:** 2\
**Last updated:** [January 8, 2020, 11:04am UTC](https://discourse.paraview.org/t/problem-use-value-from-programmable-filter-in-trace/3289 "2020-01-08T11:04:16Z")

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Hi all, is there a way to use a value computed with a programmable filter within a trace. As a kind of a return value. Thanks in advance Darius

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## [Access Array of Points Coordinates Data](https://discourse.paraview.org/t/access-array-of-points-coordinates-data/3284)

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**Author:** [@Marc57](https://discourse.paraview.org/u/Marc57)\
**Replies:** 9\
**Last updated:** [January 7, 2020, 3:06pm UTC](https://discourse.paraview.org/t/access-array-of-points-coordinates-data/3284 "2020-01-07T15:06:35Z")

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Hello everyone, I would like to access the data point array coming from a clip of a 3D Geometry. I have the below python code: mesh = STLReader(FileNames=\["D:/STL/Part.stl"\]) clip1 = Clip(Input=mesh, ClipType = 'Plane…

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## [Enabling OptiX](https://discourse.paraview.org/t/enabling-optix/567)

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**Author:** [@JonathanBorduas](https://discourse.paraview.org/u/JonathanBorduas)\
**Replies:** 10\
**Last updated:** [January 6, 2020, 5:47pm UTC](https://discourse.paraview.org/t/enabling-optix/567 "2020-01-06T17:47:02Z")

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Dear community, I built Paraview with Module\_vtkRenderingOptiX Enabled. Everything seems to have compiled properly. However I don’t have the “Enable OPTIX” option in the View section. According to the NVIDIA documentat…

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## [Paraview installation crashes](https://discourse.paraview.org/t/paraview-installation-crashes/3250)

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**Author:** [@Pat](https://discourse.paraview.org/u/Pat)\
**Replies:** 2\
**Last updated:** [January 6, 2020, 5:09pm UTC](https://discourse.paraview.org/t/paraview-installation-crashes/3250 "2020-01-06T17:09:48Z")

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Hello, I am trying to get Paraview’s headless mode installed on my Debian 10.2 VM using the super-build instructions that I found here. However I am running into an error which I do not know how to interpret. -- Install…

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## [Extracting surface](https://discourse.paraview.org/t/extracting-surface/3226)

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**Author:** [@vishruthdilip](https://discourse.paraview.org/u/vishruthdilip)\
**Replies:** 1\
**Last updated:** [January 6, 2020, 12:02pm UTC](https://discourse.paraview.org/t/extracting-surface/3226 "2020-01-06T12:02:24Z")

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Hello all, I am working with a CFD solver based on the finite point method. My results are Ensight case files. I basically have two results files. One that contains the geometry (BE\_model.case) and the other that contai…

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## [zoom dependent eye angle for anaglyph stereo](https://discourse.paraview.org/t/zoom-dependent-eye-angle-for-anaglyph-stereo/3236)

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**Author:** [@AndrewAnnex](https://discourse.paraview.org/u/AndrewAnnex)\
**Replies:** 1\
**Last updated:** [January 6, 2020, 11:07am UTC](https://discourse.paraview.org/t/zoom-dependent-eye-angle-for-anaglyph-stereo/3236 "2020-01-06T11:07:59Z")

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Is there a way to make the eye angle for anaglyph stereo become dependent on the zoom level/scale of the model? I am using 5.7.0 on macOS. As I zoom towards my model (a DEM) my eyes start hurting as the effective separat…

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## [Paraview 5.7 Mac Crashing](https://discourse.paraview.org/t/paraview-5-7-mac-crashing/3241)

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**Author:** [@helenbrk](https://discourse.paraview.org/u/helenbrk)\
**Replies:** 2\
**Last updated:** [January 3, 2020, 3:35am UTC](https://discourse.paraview.org/t/paraview-5-7-mac-crashing/3241 "2020-01-03T03:35:49Z")

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I am using Paraview 5.7 on the Mac and it reliably crashes when opening the following: This is the state file: multiblock\_scalar.pvsm (513.6 KB) which loads the following data: Archive.zip (19.4 KB) To make it crash…

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