# ParaView Support

**URL:** https://discourse.paraview.org/c/paraview-support/7.md?page=133

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**Page:** 134

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## [Slice coloring](https://discourse.paraview.org/t/slice-coloring/7865)

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**Author:** [@auringali11](https://discourse.paraview.org/u/auringali11)\
**Replies:** 0\
**Last updated:** [August 25, 2021, 5:49pm UTC](https://discourse.paraview.org/t/slice-coloring/7865 "2021-08-25T17:49:11Z")

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Hello! When getting a 2D slice from the object we have is there any way to make the picture colorful? Or to make clearer borders of the particles on the slice?

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## [Issue Running Animations in VR](https://discourse.paraview.org/t/issue-running-animations-in-vr/7703)

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**Author:** [@Aditya\_Agashe](https://discourse.paraview.org/u/Aditya_Agashe)\
**Replies:** 50\
**Last updated:** [August 25, 2021, 3:15pm UTC](https://discourse.paraview.org/t/issue-running-animations-in-vr/7703 "2021-08-25T15:15:28Z")

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I am trying to run visualizations in VR through Paraview and have been having trouble playing animations. The screen would jump around chaotically after clicking play, rather than displaying a smooth animation. After som…

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## [Transform: How to rotate stl about a given axis?](https://discourse.paraview.org/t/transform-how-to-rotate-stl-about-a-given-axis/7765)

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**Author:** [@Rezaul\_Tharim](https://discourse.paraview.org/u/Rezaul_Tharim)\
**Replies:** 3\
**Last updated:** [August 25, 2021, 9:34am UTC](https://discourse.paraview.org/t/transform-how-to-rotate-stl-about-a-given-axis/7765 "2021-08-25T09:34:52Z")

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I have a vtk showing a particle model of a screw being twisted. I tried to insert an stl file for a screwdriver in the correct position and tried rotating it at the same rate as my vtk file. I added a Filter-\>Transform-\>R…

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## [Ray Traced Particles scaling with stress](https://discourse.paraview.org/t/ray-traced-particles-scaling-with-stress/7766)

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**Author:** [@Rezaul\_Tharim](https://discourse.paraview.org/u/Rezaul_Tharim)\
**Replies:** 9\
**Last updated:** [August 25, 2021, 8:52am UTC](https://discourse.paraview.org/t/ray-traced-particles-scaling-with-stress/7766 "2021-08-25T08:52:41Z")

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I have imported a vtk file showing a block of particles being drilled with a screw. As soon as I turned the Ray Traced Rendering on, I noticed the size of the particles are changing either with respect to time or wrt to …

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## [two fluid velocity streamlines](https://discourse.paraview.org/t/two-fluid-velocity-streamlines/7847)

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**Author:** [@yashika\_dhote](https://discourse.paraview.org/u/yashika_dhote)\
**Replies:** 4\
**Last updated:** [August 24, 2021, 10:01am UTC](https://discourse.paraview.org/t/two-fluid-velocity-streamlines/7847 "2021-08-24T10:01:35Z")

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Dear All, I am trying to plot streamlines into the water droplet. I wanted streamlines given in attachment “paper.png”\*\* where inside and outside droplet streamlines are plotted separately. However when I tried to plot …

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## [cannot render when using the osmesa build](https://discourse.paraview.org/t/cannot-render-when-using-the-osmesa-build/7830)

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**Author:** [@pcrepier](https://discourse.paraview.org/u/pcrepier)\
**Replies:** 10\
**Last updated:** [August 24, 2021, 8:09am UTC](https://discourse.paraview.org/t/cannot-render-when-using-the-osmesa-build/7830 "2021-08-24T08:09:25Z")

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Hello everyone, I use a set of scripts to export a standard set of pictures for specific simulation types. The scripts run just fine and produce the expected pictures, which is as intended (so great job on that to devs!…

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## [Paraview Crash when opening vtk file](https://discourse.paraview.org/t/paraview-crash-when-opening-vtk-file/7852)

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**Author:** [@Yuan\_Feng](https://discourse.paraview.org/u/Yuan_Feng)\
**Replies:** 1\
**Last updated:** [August 24, 2021, 8:05am UTC](https://discourse.paraview.org/t/paraview-crash-when-opening-vtk-file/7852 "2021-08-24T08:05:11Z")

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Hello, I am trying to open a vtk file but Paraview crashes after loading few seconds without any error or warning message. However, when I open other file, the Paraview works fine. I deleted some CELLS in the vtk file,…

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## [Seams after converting cell data to point data](https://discourse.paraview.org/t/seams-after-converting-cell-data-to-point-data/7814)

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**Author:** [@kaiser](https://discourse.paraview.org/u/kaiser)\
**Replies:** 2\
**Last updated:** [August 20, 2021, 8:10pm UTC](https://discourse.paraview.org/t/seams-after-converting-cell-data-to-point-data/7814 "2021-08-20T20:10:56Z")

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Hello, I have a set of distributed vtr files read with a pvd file with cell data. I would like to convert that cell data to point data to get linear interpolation upon plotting. When calling CellDataToPointData and plot…

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## [How does one enable COSMOTOOLS in 5.9.1?](https://discourse.paraview.org/t/how-does-one-enable-cosmotools-in-5-9-1/7840)

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**Author:** [@jfavre](https://discourse.paraview.org/u/jfavre)\
**Replies:** 2\
**Last updated:** [August 20, 2021, 2:16pm UTC](https://discourse.paraview.org/t/how-does-one-enable-cosmotools-in-5-9-1/7840 "2021-08-20T14:16:11Z")

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Hello there Am having an issue compiling the COSMOTOOLS. So, it seems that PARAVIEW\_PLUGIN\_ENABLE\_GenericIOReader is enabled by default, and that is good. It compiles OK on my first compilation. Then I configure a seco…

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## [Gradient background doesn't seem to work](https://discourse.paraview.org/t/gradient-background-doesnt-seem-to-work/3859)

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**Author:** [@JuliusNepos](https://discourse.paraview.org/u/JuliusNepos)\
**Replies:** 6\
**Last updated:** [August 19, 2021, 7:35pm UTC](https://discourse.paraview.org/t/gradient-background-doesnt-seem-to-work/3859 "2021-08-19T19:35:37Z")

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Very new to ParaView here. Running a recent version (5.7?) under Ubuntu Linux v 18.0.4 for OpenFoam data. Trying to create a gradient screen background. I open the “Paint Palette” thingy at the top and it lets me sele…

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## [Gradient background not working?](https://discourse.paraview.org/t/gradient-background-not-working/7841)

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**Author:** [@datathing](https://discourse.paraview.org/u/datathing)\
**Replies:** 2\
**Last updated:** [August 19, 2021, 7:07pm UTC](https://discourse.paraview.org/t/gradient-background-not-working/7841 "2021-08-19T19:07:28Z")

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Hi, I have ParaView 5.9.1 and tried to set a background gradient, but the second colour does not seem to be detected (ParaView only renders this is black): Is this a known bug? Is there a work around? Thanks!

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## [Color Map Editor bug? I can't find "Use Below/Above Range Color" in Version 5.9.0 but in Version 4.4.0.](https://discourse.paraview.org/t/color-map-editor-bug-i-cant-find-use-below-above-range-color-in-version-5-9-0-but-in-version-4-4-0/7839)

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**Author:** [@SchmidtJG](https://discourse.paraview.org/u/SchmidtJG)\
**Replies:** 2\
**Last updated:** [August 19, 2021, 6:37pm UTC](https://discourse.paraview.org/t/color-map-editor-bug-i-cant-find-use-below-above-range-color-in-version-5-9-0-but-in-version-4-4-0/7839 "2021-08-19T18:37:49Z")

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Hello, I have a question about the ParaView “Color Map Editor”. In the Version 4.4.0 I can scale my color in the “Color Map Editor” also with the options Use Below Range Color Use Above Range Color But in the ParaVi…

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## [mark custom filter as auto\_load from python macro](https://discourse.paraview.org/t/mark-custom-filter-as-auto-load-from-python-macro/7834)

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**Author:** [@skaal](https://discourse.paraview.org/u/skaal)\
**Replies:** 2\
**Last updated:** [August 19, 2021, 3:41pm UTC](https://discourse.paraview.org/t/mark-custom-filter-as-auto-load-from-python-macro/7834 "2021-08-19T15:41:46Z")

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I have a macro to group a multiblock dataset into several nodes for simplified access. This macro relies on a set of python plugins loaded at the begin of the macro using LoadPlugin and works fine. However, I cannot loa…

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## [Multicomponent Mapping](https://discourse.paraview.org/t/multicomponent-mapping/7836)

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**Author:** [@Upkar\_SIngh](https://discourse.paraview.org/u/Upkar_SIngh)\
**Replies:** 1\
**Last updated:** [August 19, 2021, 8:08am UTC](https://discourse.paraview.org/t/multicomponent-mapping/7836 "2021-08-19T08:08:46Z")

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I have data in form of points and I want to map these points to two variables. One for color and one for transparency. Is it possible to do that in surface rendering or point rendering. Volume rendering option is not ava…

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## [Particle Tracer](https://discourse.paraview.org/t/particle-tracer/7789)

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**Author:** [@Upkar\_SIngh](https://discourse.paraview.org/u/Upkar_SIngh)\
**Replies:** 6\
**Last updated:** [August 19, 2021, 7:37am UTC](https://discourse.paraview.org/t/particle-tracer/7789 "2021-08-19T07:37:47Z")

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HI, I am using a velocity fields over time. The velocity is in m/sec where as the spacial dimensions are in degrees and the temporal resolution is 1 day. i.e. I have only one time step per day. When I convert the velocit…

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## [Web APIs with Python](https://discourse.paraview.org/t/web-apis-with-python/7811)

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**Author:** [@Luis\_Carlos\_Carneiro](https://discourse.paraview.org/u/Luis_Carlos_Carneiro)\
**Replies:** 9\
**Last updated:** [August 18, 2021, 2:58pm UTC](https://discourse.paraview.org/t/web-apis-with-python/7811 "2021-08-18T14:58:36Z")

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Dear All, Has Paraview Python any package to create a Web Api (like package Flask)? Which one? Thanks, Luís Gonçalves

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## [Interpolating 3D data (X, Y, Z, value)...and adding a time component.](https://discourse.paraview.org/t/interpolating-3d-data-x-y-z-value-and-adding-a-time-component/7307)

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**Author:** [@datathing](https://discourse.paraview.org/u/datathing)\
**Replies:** 13\
**Last updated:** [August 18, 2021, 2:08pm UTC](https://discourse.paraview.org/t/interpolating-3d-data-x-y-z-value-and-adding-a-time-component/7307 "2021-08-18T14:08:26Z")

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Hi, I’m interested in the possibility of interpolating a set of X/Y/Z/value data in 3D, and then working towards incorporating a time component to it so that animations can be generated. I tried to follow the informatio…

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## [how to convert flat image into volumetric object](https://discourse.paraview.org/t/how-to-convert-flat-image-into-volumetric-object/7592)

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**Author:** [@lionel](https://discourse.paraview.org/u/lionel)\
**Replies:** 7\
**Last updated:** [August 18, 2021, 2:03pm UTC](https://discourse.paraview.org/t/how-to-convert-flat-image-into-volumetric-object/7592 "2021-08-18T14:03:01Z")

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Hi everyone, I am trying to to convert a flat image into vector, so it can be convert in 3D modelisation in Paraview 5.9.0-RC1 on IOS. The flat image is a gradient from blue to red and each color is associate with a sca…

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## [Need any example with FIlter using inside the Programmable Filter](https://discourse.paraview.org/t/need-any-example-with-filter-using-inside-the-programmable-filter/1386)

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**Author:** [@Allrond](https://discourse.paraview.org/u/Allrond)\
**Replies:** 4\
**Last updated:** [August 18, 2021, 12:27pm UTC](https://discourse.paraview.org/t/need-any-example-with-filter-using-inside-the-programmable-filter/1386 "2021-08-18T12:27:20Z")

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I cant find no example with calling vtk filters inside th programmable filter. 1)Created filter should not be in ParaView Pipeline Browser. 2)It can be Glyph filter or Cutter filter or Threshold or ExtractSubset for …

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## [pvpython Rescale to Data Range for Calculator](https://discourse.paraview.org/t/pvpython-rescale-to-data-range-for-calculator/6767)

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**Author:** [@TimJim](https://discourse.paraview.org/u/TimJim)\
**Replies:** 1\
**Last updated:** [August 18, 2021, 11:02am UTC](https://discourse.paraview.org/t/pvpython-rescale-to-data-range-for-calculator/6767 "2021-08-18T11:02:50Z")

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Hi, I’m having some trouble getting the colourmap to rescale for a calculator output. I used calculator1Display.RescaleTransferFunctionToDataRange(False, True) as in the trace, but it doesn’t seem to update the colour. …

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## [Obtain information if proxy is visible](https://discourse.paraview.org/t/obtain-information-if-proxy-is-visible/2346)

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**Author:** [@bastian](https://discourse.paraview.org/u/bastian)\
**Replies:** 10\
**Last updated:** [August 18, 2021, 10:31am UTC](https://discourse.paraview.org/t/obtain-information-if-proxy-is-visible/2346 "2021-08-18T10:31:59Z")

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Can anyone tell me how I can have my paraview batch script find out if an object is visible or not? Here is a small example: from paraview.simple import \* paraview.simple.\_DisableFirstRenderCameraReset() renderView1 =…

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## [Embedded Documentation build fail](https://discourse.paraview.org/t/embedded-documentation-build-fail/7822)

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**Author:** [@Andrew\_Maclean](https://discourse.paraview.org/u/Andrew_Maclean)\
**Replies:** 7\
**Last updated:** [August 17, 2021, 11:36pm UTC](https://discourse.paraview.org/t/embedded-documentation-build-fail/7822 "2021-08-17T23:36:31Z")

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I am building the master and have just begun to get the above message. The failure is this: FAILED: Clients/ParaView/Documentation/paraview\_doc.xslt /home/amaclean/Development/Kitware/build/paraview/Clients/ParaView/Do…

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## [Nvidia Index volume rendering problem](https://discourse.paraview.org/t/nvidia-index-volume-rendering-problem/4753)

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**Author:** [@Palas\_Kumar\_Farsoiya](https://discourse.paraview.org/u/Palas_Kumar_Farsoiya)\
**Replies:** 11\
**Last updated:** [August 17, 2021, 3:32pm UTC](https://discourse.paraview.org/t/nvidia-index-volume-rendering-problem/4753 "2021-08-17T15:32:32Z")

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Dear All, nsd-1.vtu (1.8 MB) The Nvidia Index plugin volume rendering incorrect result compared to paraview volume rendering. Both the images are shown below. I have also attached the vtu file too to reproduce the imag…

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## [Using Paraview superbuild to distribute paraview plugin for official paraview release?](https://discourse.paraview.org/t/using-paraview-superbuild-to-distribute-paraview-plugin-for-official-paraview-release/7774)

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**Author:** [@anthomas](https://discourse.paraview.org/u/anthomas)\
**Replies:** 12\
**Last updated:** [August 16, 2021, 10:38am UTC](https://discourse.paraview.org/t/using-paraview-superbuild-to-distribute-paraview-plugin-for-official-paraview-release/7774 "2021-08-16T10:38:38Z")

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Can the paraview superbuild be used to build a plugin that is usable with the official paraview release? If so would I still need to build the superbuild on each operating system I want to release on?

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## [Problem in generating a vtk file with UNSTRUCTURED\_GRID and reading it in Paraview](https://discourse.paraview.org/t/problem-in-generating-a-vtk-file-with-unstructured-grid-and-reading-it-in-paraview/7819)

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**Author:** [@Diogo\_Cecilio](https://discourse.paraview.org/u/Diogo_Cecilio)\
**Replies:** 3\
**Last updated:** [August 16, 2021, 6:46am UTC](https://discourse.paraview.org/t/problem-in-generating-a-vtk-file-with-unstructured-grid-and-reading-it-in-paraview/7819 "2021-08-16T06:46:26Z")

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I have this .vtk file that I have created for a single quadratic hexahedron element (cube): vtk DataFile Version 3.0 File generated from DClib ASCII DATASET UNSTRUCTURED\_GRID POINTS 20 float 0 0 0 1 0 0 1 1 0 0 1…

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## [Appending geometries smoothly](https://discourse.paraview.org/t/appending-geometries-smoothly/7824)

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**Author:** [@mozdil](https://discourse.paraview.org/u/mozdil)\
**Replies:** 0\
**Last updated:** [August 15, 2021, 9:58pm UTC](https://discourse.paraview.org/t/appending-geometries-smoothly/7824 "2021-08-15T21:58:17Z")

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Hi, I have a unstructured porous geometry. I want to create a new geometry with transforming and rotating existing geometry. Let’s say A to my first geometry. B is 90 degree rotated version of A. C is 90 degree rotated …

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## [Why this file not open in Paraview 5.9.0](https://discourse.paraview.org/t/why-this-file-not-open-in-paraview-5-9-0/7821)

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**Author:** [@Diogo\_Cecilio](https://discourse.paraview.org/u/Diogo_Cecilio)\
**Replies:** 1\
**Last updated:** [August 15, 2021, 5:47am UTC](https://discourse.paraview.org/t/why-this-file-not-open-in-paraview-5-9-0/7821 "2021-08-15T05:47:39Z")

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Why the following file not opening in Paraview? vtk DataFile Version 3.0 File generated from DClib ASCII DATASET UNSTRUCTURED\_GRID POINTS 141 float 0 0 0.2 0 0 0.15 0 0.05 0.2 0 0 0.1 0 0.1 0.2 0 0.05 0.1 0 0.…

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## [Loading non-standard time-series from HDF5](https://discourse.paraview.org/t/loading-non-standard-time-series-from-hdf5/7820)

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**Author:** [@tbody](https://discourse.paraview.org/u/tbody)\
**Replies:** 0\
**Last updated:** [August 14, 2021, 3:27pm UTC](https://discourse.paraview.org/t/loading-non-standard-time-series-from-hdf5/7820 "2021-08-14T15:27:47Z")

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Recommended file format for ‘light’ description of existing ‘heavy’ HDF-5 files Apologies for asking a common question. I’ve looked through several of the previous posts, and haven’t quite found the right solution – of n…

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## [Translation to display two files next to each other does not work](https://discourse.paraview.org/t/translation-to-display-two-files-next-to-each-other-does-not-work/7795)

<div class="topic-metadata">

**Author:** [@yulia](https://discourse.paraview.org/u/yulia)\
**Replies:** 1\
**Last updated:** [August 13, 2021, 2:31pm UTC](https://discourse.paraview.org/t/translation-to-display-two-files-next-to-each-other-does-not-work/7795 "2021-08-13T14:31:01Z")

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Hi, I have two vtk files which I would like to display next to each other so that I can compare them. I have loaded both into paraview and under tranforming \> translation I changed for one file the first value to -2.1 (…

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## [PVbatch running in a single thread](https://discourse.paraview.org/t/pvbatch-running-in-a-single-thread/7816)

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**Author:** [@Vamsi\_Galigutta](https://discourse.paraview.org/u/Vamsi_Galigutta)\
**Replies:** 1\
**Last updated:** [August 12, 2021, 11:07pm UTC](https://discourse.paraview.org/t/pvbatch-running-in-a-single-thread/7816 "2021-08-12T23:07:24Z")

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Hi, I am new to paraview and am struggling with something that seems basic. I downloaded the full version of paraview 5.9.1 to my desktop machine with Nvidia gpu and am able to script it to run my animation job (generat…

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