# ParaView Support

**URL:** https://discourse.paraview.org/c/paraview-support/7.md?page=116

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

**Page:** 117

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## [Numpy module not found](https://discourse.paraview.org/t/numpy-module-not-found/8979)

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**Author:** [@Bushra](https://discourse.paraview.org/u/Bushra)\
**Replies:** 6\
**Last updated:** [February 23, 2022, 10:43am UTC](https://discourse.paraview.org/t/numpy-module-not-found/8979 "2022-02-23T10:43:44Z")

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Hi! I am trying to use annotate attribute data in paraview which requires numpy. When I try to use this utility, it gives me the following error: Traceback (most recent call last): File "/apps/OpenFOAM/ParaView-5.9.1…

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## [Extracting points inside a surface](https://discourse.paraview.org/t/extracting-points-inside-a-surface/8989)

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**Author:** [@SCRO1022](https://discourse.paraview.org/u/SCRO1022)\
**Replies:** 5\
**Last updated:** [February 23, 2022, 10:20am UTC](https://discourse.paraview.org/t/extracting-points-inside-a-surface/8989 "2022-02-23T10:20:58Z")

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Hello, i am trying to extract some points inside a surface. I have an multiblock dataset, as you can see in my attached image. Extractblock1 is the Geometry/Mesh from which i want to extract the surface. Extractblock2 c…

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## [Try and except problem when LegacyVTKReader is run](https://discourse.paraview.org/t/try-and-except-problem-when-legacyvtkreader-is-run/9032)

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**Author:** [@rasunag27](https://discourse.paraview.org/u/rasunag27)\
**Replies:** 1\
**Last updated:** [February 23, 2022, 10:12am UTC](https://discourse.paraview.org/t/try-and-except-problem-when-legacyvtkreader-is-run/9032 "2022-02-23T10:12:31Z")

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Hi, This is a simple question which I am unable to resolve it. So, here is the thing. I have a vtk file which is read through LegacyVTKReader. I am using python exception handling to print an exception error if file is…

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## [paraview multiphase](https://discourse.paraview.org/t/paraview-multiphase/9035)

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**Author:** [@wjchoi97](https://discourse.paraview.org/u/wjchoi97)\
**Replies:** 1\
**Last updated:** [February 23, 2022, 10:10am UTC](https://discourse.paraview.org/t/paraview-multiphase/9035 "2022-02-23T10:10:00Z")

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when i studied dambreak4phase in openFoam, i had a question… there are four materials, air, water, oil, mercury in dambreak4phase case… and i want to see the motion or flow of those materials simultaneously in one scre…

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## [merging identical image data set grids](https://discourse.paraview.org/t/merging-identical-image-data-set-grids/8937)

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**Author:** [@patchett2002](https://discourse.paraview.org/u/patchett2002)\
**Replies:** 4\
**Last updated:** [February 23, 2022, 10:00am UTC](https://discourse.paraview.org/t/merging-identical-image-data-set-grids/8937 "2022-02-23T10:00:06Z")

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Hello, I have 2 image data datasets that have identical extents, ranges, origins, and thus identical cell and point counts with one scalar field each. I essentially want to merge the scalars so that I have one dataset wi…

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## [Error: Find Data requires that ParaView be built with Python enabled. To enable Python set the CMake flag 'PARAVIEW\_ENABLE\_PYTHON' to True.](https://discourse.paraview.org/t/error-find-data-requires-that-paraview-be-built-with-python-enabled-to-enable-python-set-the-cmake-flag-paraview-enable-python-to-true/9002)

<div class="topic-metadata">

**Author:** [@KahWing7](https://discourse.paraview.org/u/KahWing7)\
**Replies:** 1\
**Last updated:** [February 23, 2022, 9:39am UTC](https://discourse.paraview.org/t/error-find-data-requires-that-paraview-be-built-with-python-enabled-to-enable-python-set-the-cmake-flag-paraview-enable-python-to-true/9002 "2022-02-23T09:39:58Z")

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im new to this system how do i fix this?

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## [Warp by vector with heat map](https://discourse.paraview.org/t/warp-by-vector-with-heat-map/9031)

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**Author:** [@Valentin\_Slepukhin](https://discourse.paraview.org/u/Valentin_Slepukhin)\
**Replies:** 4\
**Last updated:** [February 23, 2022, 3:49am UTC](https://discourse.paraview.org/t/warp-by-vector-with-heat-map/9031 "2022-02-23T03:49:07Z")

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Hello, I have a 2D region and the data of the displacement of each poiont with displacements, so I can see how it changes its shape using warp by vector. I also have a scalar data in each point of the initial region (pr…

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## [Odd line in Viridis colormap when "Discretize" is off](https://discourse.paraview.org/t/odd-line-in-viridis-colormap-when-discretize-is-off/9029)

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**Author:** [@GregVernon](https://discourse.paraview.org/u/GregVernon)\
**Replies:** 1\
**Last updated:** [February 22, 2022, 3:08am UTC](https://discourse.paraview.org/t/odd-line-in-viridis-colormap-when-discretize-is-off/9029 "2022-02-22T03:08:04Z")

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I’ve noticed that if you use the viridis colormap with the Discretize option unselected, that a random pink-ish line shows up in the colormap. See images below, coloring the z-normals on a sphere source. I’ve checked s…

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## [How can I visualize multiple discontinuous data in Paraview?](https://discourse.paraview.org/t/how-can-i-visualize-multiple-discontinuous-data-in-paraview/9028)

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**Author:** [@zipengxu456](https://discourse.paraview.org/u/zipengxu456)\
**Replies:** 2\
**Last updated:** [February 21, 2022, 8:13pm UTC](https://discourse.paraview.org/t/how-can-i-visualize-multiple-discontinuous-data-in-paraview/9028 "2022-02-21T20:13:53Z")

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Hello, I’m new user for Paraview. Currently, I’m using the paraview to visualize my research project’s microstructure, by using the threshold, I can visualize the structure I want. I also showed the threshold setting be…

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## [Extract maximum value in all range.](https://discourse.paraview.org/t/extract-maximum-value-in-all-range/9023)

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**Author:** [@Ingineering\_DjouFEA](https://discourse.paraview.org/u/Ingineering_DjouFEA)\
**Replies:** 1\
**Last updated:** [February 21, 2022, 9:20am UTC](https://discourse.paraview.org/t/extract-maximum-value-in-all-range/9023 "2022-02-21T09:20:16Z")

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Hello everyone. I have resolved a transient problem and would like to extract the largest value of all cells and choose the one that is maximum. Please is there a filter that can do this. Thank you.

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## [Plot deformation in one direction](https://discourse.paraview.org/t/plot-deformation-in-one-direction/9022)

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**Author:** [@Ingineering\_DjouFEA](https://discourse.paraview.org/u/Ingineering_DjouFEA)\
**Replies:** 1\
**Last updated:** [February 21, 2022, 9:18am UTC](https://discourse.paraview.org/t/plot-deformation-in-one-direction/9022 "2022-02-21T09:18:30Z")

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Hello, I have solved a problem of elasticity. And I would like to visualize the calculated deformation along one axis (x or y) for the whole domain. Please can you tell me how to do this if it is possible? Thank.

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## [Output problem](https://discourse.paraview.org/t/output-problem/9015)

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**Author:** [@Lorenzo\_Marta](https://discourse.paraview.org/u/Lorenzo_Marta)\
**Replies:** 1\
**Last updated:** [February 21, 2022, 8:39am UTC](https://discourse.paraview.org/t/output-problem/9015 "2022-02-21T08:39:45Z")

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I am trying to open mhd files obtained from 3DSlicer on Paraviw which always gives me this output message: warning: In unknown, line 0 warning: Populating font family aliases took 211 ms. Replace uses of missing font fa…

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## [Running Interactive Paraview on a Azure Virtual Machine?](https://discourse.paraview.org/t/running-interactive-paraview-on-a-azure-virtual-machine/8995)

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**Author:** [@Ahmed](https://discourse.paraview.org/u/Ahmed)\
**Replies:** 3\
**Last updated:** [February 18, 2022, 7:20pm UTC](https://discourse.paraview.org/t/running-interactive-paraview-on-a-azure-virtual-machine/8995 "2022-02-18T19:20:26Z")

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Hi! I have seen some past posts mentioning workarounds as downloading unofficial repositories which includeds something called Mesa to replace OpenGL rendering on a Virtual Machine. My question is then, will there ever…

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## [ParaView RenderViews question](https://discourse.paraview.org/t/paraview-renderviews-question/9009)

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**Author:** [@callista](https://discourse.paraview.org/u/callista)\
**Replies:** 2\
**Last updated:** [February 18, 2022, 1:20pm UTC](https://discourse.paraview.org/t/paraview-renderviews-question/9009 "2022-02-18T13:20:14Z")

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Hi everyone, I want to represent each of these 3 files separately in terms of their color bars since they are different variables, but they seem connected in these Render Views. Can someone help me with these same ba…

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## [Superbuild 'install' target fails with v5.10](https://discourse.paraview.org/t/superbuild-install-target-fails-with-v5-10/8942)

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**Author:** [@mirenradia](https://discourse.paraview.org/u/mirenradia)\
**Replies:** 16\
**Last updated:** [February 18, 2022, 12:07pm UTC](https://discourse.paraview.org/t/superbuild-install-target-fails-with-v5-10/8942 "2022-02-18T12:07:39Z")

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Hello, I have just been trying to install a CATALYST\_RENDERING superbuild of ParaView v5.10.0 on a Linux HPC cluster that seems to build fine (and works fine for me from the build directory) but I can’t seem to install …

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## [Trouble with vtkPythonAlgorithm](https://discourse.paraview.org/t/trouble-with-vtkpythonalgorithm/8992)

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**Author:** [@woodscn](https://discourse.paraview.org/u/woodscn)\
**Replies:** 3\
**Last updated:** [February 17, 2022, 8:52pm UTC](https://discourse.paraview.org/t/trouble-with-vtkpythonalgorithm/8992 "2022-02-17T20:52:48Z")

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I’m having trouble reproducing the vtkPythonAlgorithm example from here: 4. Programmable Filter — ParaView Documentation 5.10.0 documentation The plugin appears to load correctly, and I can control the output data type…

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## [Debug build fail: cannot open file 'python310.lib'](https://discourse.paraview.org/t/debug-build-fail-cannot-open-file-python310-lib/9000)

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**Author:** [@pindakaas](https://discourse.paraview.org/u/pindakaas)\
**Replies:** 2\
**Last updated:** [February 17, 2022, 8:51pm UTC](https://discourse.paraview.org/t/debug-build-fail-cannot-open-file-python310-lib/9000 "2022-02-17T20:51:34Z")

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When building the Debug version of ParaView: Linking CXX shared library bin\\vtkWrappingPythonCore3.10-pv5.10d.dll fails with this error fatal error LNK1104: cannot open file ‘python310.lib’ Why is it even searching for…

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## [Error ParaView vtk](https://discourse.paraview.org/t/error-paraview-vtk/8999)

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**Author:** [@Lorenzo\_Marta](https://discourse.paraview.org/u/Lorenzo_Marta)\
**Replies:** 1\
**Last updated:** [February 17, 2022, 4:02pm UTC](https://discourse.paraview.org/t/error-paraview-vtk/8999 "2022-02-17T16:02:42Z")

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Hi everyone, I’m having problems with the interface between ParaView and vtk. (I’m working with macOS operating system on mac with M1 processor) In particular, starting from 2 files, meshR.vtu and Dxx.mhd, I have to bu…

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## [Turn off Light Kit through python](https://discourse.paraview.org/t/turn-off-light-kit-through-python/8988)

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**Author:** [@bastian](https://discourse.paraview.org/u/bastian)\
**Replies:** 4\
**Last updated:** [February 17, 2022, 10:14am UTC](https://discourse.paraview.org/t/turn-off-light-kit-through-python/8988 "2022-02-17T10:14:25Z")

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I am adopting a script-only workflow to free myself of the burden to create and update those non-human-readable state files. In this context: How can I modify (or simply disable) the Light Kit through python? Is it pos…

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## [problem with file vtk](https://discourse.paraview.org/t/problem-with-file-vtk/8987)

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**Author:** [@Lorenzo\_Marta](https://discourse.paraview.org/u/Lorenzo_Marta)\
**Replies:** 1\
**Last updated:** [February 16, 2022, 4:01pm UTC](https://discourse.paraview.org/t/problem-with-file-vtk/8987 "2022-02-16T16:01:34Z")

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Hi everyone, I’m having problems with the interface between ParaView and vtk. (I’m working with macOS operating system on mac with M1 processor) In particular, starting from 2 files, meshR.vtu and Dxx.mhd, I have to bu…

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## [Create a color map that has a color gradient between 0 and 4 and another color above 4](https://discourse.paraview.org/t/create-a-color-map-that-has-a-color-gradient-between-0-and-4-and-another-color-above-4/8986)

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**Author:** [@Resa](https://discourse.paraview.org/u/Resa)\
**Replies:** 1\
**Last updated:** [February 16, 2022, 3:26pm UTC](https://discourse.paraview.org/t/create-a-color-map-that-has-a-color-gradient-between-0-and-4-and-another-color-above-4/8986 "2022-02-16T15:26:42Z")

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Hey there, I would like to color a buch of spheres in any gradient (for example “X Ray” white to black) between the values 0 to 4. But above 4 I would like to colorize everything in yellow (everything above 4 is nan). H…

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## [Error with vtkXMLReader.cxx file](https://discourse.paraview.org/t/error-with-vtkxmlreader-cxx-file/8985)

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**Author:** [@Lorenzo\_Marta](https://discourse.paraview.org/u/Lorenzo_Marta)\
**Replies:** 0\
**Last updated:** [February 16, 2022, 2:44pm UTC](https://discourse.paraview.org/t/error-with-vtkxmlreader-cxx-file/8985 "2022-02-16T14:44:34Z")

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Hi everyone, I’m having problems with the interface between ParaView and vtk. (I’m working with macOS operating system on mac with M1 processor) In particular, starting from 2 files, meshR.vtu and Dxx.mhd, I have to bu…

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## [Custom applications don't work](https://discourse.paraview.org/t/custom-applications-dont-work/8983)

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**Author:** [@pindakaas](https://discourse.paraview.org/u/pindakaas)\
**Replies:** 1\
**Last updated:** [February 16, 2022, 2:23pm UTC](https://discourse.paraview.org/t/custom-applications-dont-work/8983 "2022-02-16T14:23:44Z")

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Hi, I have been trying to build the custom apps from the examples (Demo0, SimpleParaView) with no success. My build procedure is as follows. x64 Native Tools Command Prompt for VS 2019: cmake -S path\_to\_example\_sourc…

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## [importing dataset\_adapter in PV 5.10](https://discourse.paraview.org/t/importing-dataset-adapter-in-pv-5-10/8977)

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**Author:** [@Andy\_Bauer](https://discourse.paraview.org/u/Andy_Bauer)\
**Replies:** 1\
**Last updated:** [February 16, 2022, 2:19pm UTC](https://discourse.paraview.org/t/importing-dataset-adapter-in-pv-5-10/8977 "2022-02-16T14:19:09Z")

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I’m having trouble importing dataset\_adapter in PV 5.10 using either pvpython or the Python View in the GUI. This is with the installer-based version. I’m not a Python expert but it seems like a bad idea to have a Python…

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## [Issues with Graphs in Paraview](https://discourse.paraview.org/t/issues-with-graphs-in-paraview/8976)

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**Author:** [@Arapi\_K](https://discourse.paraview.org/u/Arapi_K)\
**Replies:** 0\
**Last updated:** [February 15, 2022, 8:54pm UTC](https://discourse.paraview.org/t/issues-with-graphs-in-paraview/8976 "2022-02-15T20:54:46Z")

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When doing the analysis of a turbulent flow smooth flat plate from SU2 on Paraview, and I try to generate results for the velocity profile, temperature profile, skin friction coefficient profile, and nusselt number profi…

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## [Structured coordinates to physical coordinates](https://discourse.paraview.org/t/structured-coordinates-to-physical-coordinates/8974)

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**Author:** [@ckpark96](https://discourse.paraview.org/u/ckpark96)\
**Replies:** 1\
**Last updated:** [February 15, 2022, 5:44pm UTC](https://discourse.paraview.org/t/structured-coordinates-to-physical-coordinates/8974 "2022-02-15T17:44:21Z")

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Hello. Upon applying the Point Volume Interpolator filter, I noticed that the physical coordinates (the points) have disappeared. How can I recover the physical coordinates of the newly applied volume? Thanks!

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## [Segmentation fault, Loguru caught a signal: SIGSEGV](https://discourse.paraview.org/t/segmentation-fault-loguru-caught-a-signal-sigsegv/8941)

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**Author:** [@ckpark96](https://discourse.paraview.org/u/ckpark96)\
**Replies:** 5\
**Last updated:** [February 15, 2022, 4:10pm UTC](https://discourse.paraview.org/t/segmentation-fault-loguru-caught-a-signal-sigsegv/8941 "2022-02-15T16:10:19Z")

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Hello, I have Paraview 5.10 installed on my PopOs 21.10 via the binary package and when I load .xmf file and select my desired properties and proceed with ‘apply’, Paraview crashes with the following error. Could anyone…

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## [Run Paraview on multiple nodes on HPC cluster](https://discourse.paraview.org/t/run-paraview-on-multiple-nodes-on-hpc-cluster/8969)

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**Author:** [@Abhijeet\_Chodankar](https://discourse.paraview.org/u/Abhijeet_Chodankar)\
**Replies:** 1\
**Last updated:** [February 15, 2022, 10:36am UTC](https://discourse.paraview.org/t/run-paraview-on-multiple-nodes-on-hpc-cluster/8969 "2022-02-15T10:36:12Z")

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I used the tunneling method to connect Paraview in client server mode. In this method, I did connect to one node on the HPC. What method should I adopt if I would like to run Paraview on multiple nodes on HPC? Does it de…

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## [How to give different colors to a selection of facets](https://discourse.paraview.org/t/how-to-give-different-colors-to-a-selection-of-facets/8940)

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**Author:** [@SelmaBense](https://discourse.paraview.org/u/SelmaBense)\
**Replies:** 4\
**Last updated:** [February 15, 2022, 10:35am UTC](https://discourse.paraview.org/t/how-to-give-different-colors-to-a-selection-of-facets/8940 "2022-02-15T10:35:55Z")

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Hello, I work with a VTK file and want to display a selection of facets in different colors. When I run a selection I have only one color for all the facets. Do I need to attribute values (intensities) to the facets to…

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## [Annotating probe values](https://discourse.paraview.org/t/annotating-probe-values/8970)

<div class="topic-metadata">

**Author:** [@Bushra](https://discourse.paraview.org/u/Bushra)\
**Replies:** 0\
**Last updated:** [February 15, 2022, 6:54am UTC](https://discourse.paraview.org/t/annotating-probe-values/8970 "2022-02-15T06:54:38Z")

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Hi! I want to annotate probe location values as horizontal bar graphs at the top of domain so that the length of bar changes with variable value. I want the bar to appear at the top within the domain screen and not as a…

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