# ParaView Support

**URL:** https://discourse.paraview.org/c/paraview-support/7.md?page=61

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

**Page:** 62

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## [VTKHDF format](https://discourse.paraview.org/t/vtkhdf-format/13203)

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**Author:** [@Frankx9](https://discourse.paraview.org/u/Frankx9)\
**Replies:** 4\
**Last updated:** [November 8, 2023, 8:53am UTC](https://discourse.paraview.org/t/vtkhdf-format/13203 "2023-11-08T08:53:09Z")

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Hello, I have two VTKHDF dataset, one with the full flowfield and one with only surface data, is there a way to combine those dataset into one VTKHDF? If so, can this be done also at writing time? What should be the VTK…

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## [Clipping by scalar incorrect for super-build](https://discourse.paraview.org/t/clipping-by-scalar-incorrect-for-super-build/13196)

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**Author:** [@Thomas](https://discourse.paraview.org/u/Thomas)\
**Replies:** 5\
**Last updated:** [November 8, 2023, 4:51am UTC](https://discourse.paraview.org/t/clipping-by-scalar-incorrect-for-super-build/13196 "2023-11-08T04:51:15Z")

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Hi, I have compiled paraview superbuild 5.10 and 5.11 (5.12 failed on download - separate problem) but when reading OpenFoam VTK files and clipping the data by the U\_Z velocity, I get the following image: If I clip …

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## [Unit normal Vector Fluid Interface](https://discourse.paraview.org/t/unit-normal-vector-fluid-interface/7316)

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**Author:** [@M\_M](https://discourse.paraview.org/u/M_M)\
**Replies:** 14\
**Last updated:** [November 8, 2023, 1:50am UTC](https://discourse.paraview.org/t/unit-normal-vector-fluid-interface/7316 "2023-11-08T01:50:56Z")

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Hello. This is my first post so I will try my best to be concise. I use Paraview 5.0.1 I am working on a two-phase fluid flow simulation where I am post-processing using Paraview. I am trying to obtain the unit normal …

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## [Node set displaying](https://discourse.paraview.org/t/node-set-displaying/13200)

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**Author:** [@Andr](https://discourse.paraview.org/u/Andr)\
**Replies:** 7\
**Last updated:** [November 7, 2023, 4:54pm UTC](https://discourse.paraview.org/t/node-set-displaying/13200 "2023-11-07T16:54:35Z")

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Hello. i have a set of nodes in my exodus file. Tell me please: what filter i need to use, to display it as a glyph?

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## [multimaterial data, NaNs and Catalyst V2](https://discourse.paraview.org/t/multimaterial-data-nans-and-catalyst-v2/13115)

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**Author:** [@zetwal](https://discourse.paraview.org/u/zetwal)\
**Replies:** 9\
**Last updated:** [November 7, 2023, 2:31pm UTC](https://discourse.paraview.org/t/multimaterial-data-nans-and-catalyst-v2/13115 "2023-11-07T14:31:34Z")

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Hello I have a simulation that has multiple materials. So, I’m thinking that the easiest way to handle this is to put NANs in the cells for which there is no data for that material. That seems to work, and the NAN cells…

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## [Average velocity within a simple region](https://discourse.paraview.org/t/average-velocity-within-a-simple-region/2820)

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**Author:** [@mcrossleyuk](https://discourse.paraview.org/u/mcrossleyuk)\
**Replies:** 34\
**Last updated:** [November 6, 2023, 5:11pm UTC](https://discourse.paraview.org/t/average-velocity-within-a-simple-region/2820 "2023-11-06T17:11:36Z")

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Not a problem after great help getting started in ParavVew. But I now need to learn a lot more in order to handle my CFD project. I am looking to obtain average x, y and z velocities on planes within a simple pipe secti…

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## [How do I get the block names from an exodus file in my programmable filter](https://discourse.paraview.org/t/how-do-i-get-the-block-names-from-an-exodus-file-in-my-programmable-filter/12359)

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**Author:** [@Rob-Chase](https://discourse.paraview.org/u/Rob-Chase)\
**Replies:** 11\
**Last updated:** [November 6, 2023, 5:05pm UTC](https://discourse.paraview.org/t/how-do-i-get-the-block-names-from-an-exodus-file-in-my-programmable-filter/12359 "2023-11-06T17:05:16Z")

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I hope someone can give me some help with this. I’m relatively new to Python programming and plugins/programmable filters in Paraview. For background, I’m trying to transition from Paraview 5.4.1 to a newer version - I…

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## [Unable to properly load simulation after switch to the "point" view mode](https://discourse.paraview.org/t/unable-to-properly-load-simulation-after-switch-to-the-point-view-mode/13167)

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**Author:** [@zxc\_xc](https://discourse.paraview.org/u/zxc_xc)\
**Replies:** 3\
**Last updated:** [November 6, 2023, 3:56pm UTC](https://discourse.paraview.org/t/unable-to-properly-load-simulation-after-switch-to-the-point-view-mode/13167 "2023-11-06T15:56:39Z")

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Hi, I am attempting to visualize my openfoam simulation data. In the “cube” mode, the temperature data is displayed correctly. However, when I switch to the “point” view, all the data disappears. Upon switching back to …

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## [Glyphs displayed not in all elements](https://discourse.paraview.org/t/glyphs-displayed-not-in-all-elements/13199)

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**Author:** [@Andr](https://discourse.paraview.org/u/Andr)\
**Replies:** 3\
**Last updated:** [November 6, 2023, 3:12pm UTC](https://discourse.paraview.org/t/glyphs-displayed-not-in-all-elements/13199 "2023-11-06T15:12:39Z")

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Hello. I have a exodus file, where data for local axes are defined. It’s 3 numbers for each axis vector. But for some elements glyphs are missed. Help me please with this issue: how to display glyphs for all elements. …

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## [Does Nvidia IndeX plugin support vdb files?](https://discourse.paraview.org/t/does-nvidia-index-plugin-support-vdb-files/12817)

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**Author:** [@fashing](https://discourse.paraview.org/u/fashing)\
**Replies:** 7\
**Last updated:** [November 6, 2023, 3:08pm UTC](https://discourse.paraview.org/t/does-nvidia-index-plugin-support-vdb-files/12817 "2023-11-06T15:08:01Z")

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Hi, I am new to ParaView and try to use ParaView 5.11.1 for volume rendering. I take the testcases from openvdb official website. I can render the testcase (e.g. bunny\_cloud) successfully with volume representation and…

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## [Reordering Point ID to save data after slicing](https://discourse.paraview.org/t/reordering-point-id-to-save-data-after-slicing/13195)

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**Author:** [@Boone](https://discourse.paraview.org/u/Boone)\
**Replies:** 1\
**Last updated:** [November 6, 2023, 11:16am UTC](https://discourse.paraview.org/t/reordering-point-id-to-save-data-after-slicing/13195 "2023-11-06T11:16:27Z")

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Hi all, I would like to extract the data from a slice but to reorder the point ID so that they are consistent with the numbering of the initial geometry. In more details, I want to export the data from the slice in .cs…

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## [ResampleWithDataset in batch python: output only some columns](https://discourse.paraview.org/t/resamplewithdataset-in-batch-python-output-only-some-columns/13189)

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**Author:** [@simonw](https://discourse.paraview.org/u/simonw)\
**Replies:** 6\
**Last updated:** [November 6, 2023, 10:54am UTC](https://discourse.paraview.org/t/resamplewithdataset-in-batch-python-output-only-some-columns/13189 "2023-11-06T10:54:44Z")

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Dear all, I wrote a python script to interpolate data using the ResampleWithDataset filter. I also want to output the result of the filter in a csv file. Here is what I tried: resampleWithDataSet = ResampleWithDataSet…

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## [Multi animation](https://discourse.paraview.org/t/multi-animation/13194)

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**Author:** [@Anas\_Muhamad\_Pauzi](https://discourse.paraview.org/u/Anas_Muhamad_Pauzi)\
**Replies:** 1\
**Last updated:** [November 6, 2023, 10:12am UTC](https://discourse.paraview.org/t/multi-animation/13194 "2023-11-06T10:12:04Z")

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Hi, I wish to save 2 video that run at different time at the same time. For example the video on right runs from 1-5s and on left from 6 to 10. I wish that both animation plays at the same time. When I choose the “Save …

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## [Surface meshes extraction from reference and a deformed version of a volumetric mesh](https://discourse.paraview.org/t/surface-meshes-extraction-from-reference-and-a-deformed-version-of-a-volumetric-mesh/12592)

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**Author:** [@chathu](https://discourse.paraview.org/u/chathu)\
**Replies:** 2\
**Last updated:** [November 6, 2023, 9:34am UTC](https://discourse.paraview.org/t/surface-meshes-extraction-from-reference-and-a-deformed-version-of-a-volumetric-mesh/12592 "2023-11-06T09:34:40Z")

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Hi, I first extract the surface mesh from a reference volumetric mesh (.vtk format) using extract surface filter in Paraview and save to disk (as .stl file). I then deform this volumetric mesh by applying simple transl…

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## [Error loading VTKHDF unstructured grid](https://discourse.paraview.org/t/error-loading-vtkhdf-unstructured-grid/13171)

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**Author:** [@Juan\_Jose\_Casafranca](https://discourse.paraview.org/u/Juan_Jose_Casafranca)\
**Replies:** 13\
**Last updated:** [November 6, 2023, 8:32am UTC](https://discourse.paraview.org/t/error-loading-vtkhdf-unstructured-grid/13171 "2023-11-06T08:32:15Z")

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I am tryinv to use VTKHDF format and I have create a sample file to test it, but paraview is giving errors when trying to read it: ( 113.892s) \[paraview \] vtkExecutive.cxx:729 ERR| vtkPVCompositeDataPipe…

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## [Append Attributes calculating two field sources?](https://discourse.paraview.org/t/append-attributes-calculating-two-field-sources/13192)

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**Author:** [@Cui](https://discourse.paraview.org/u/Cui)\
**Replies:** 2\
**Last updated:** [November 6, 2023, 6:38am UTC](https://discourse.paraview.org/t/append-attributes-calculating-two-field-sources/13192 "2023-11-06T06:38:35Z")

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I have two sets of output files i.e., rm2turbPipe0.f00001 and rmsturbPipe0.f00001 from Nek5000. The files are with the same mesh and I want to use them to calculator. I had followed the previosu topic Calculator from dif…

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## [Async Support with Trame](https://discourse.paraview.org/t/async-support-with-trame/13184)

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**Author:** [@aivandurfee](https://discourse.paraview.org/u/aivandurfee)\
**Replies:** 1\
**Last updated:** [November 5, 2023, 5:00pm UTC](https://discourse.paraview.org/t/async-support-with-trame/13184 "2023-11-05T17:00:24Z")

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Hello, I am struggling to understand how to use ParaView Async. I am trying to use ParaView Async to connect simultaneous 2D and 3D visualization in real time using Trame. I have the 3D data and know how to access the 2…

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## [Paraview Catalyst adapter example for particle data](https://discourse.paraview.org/t/paraview-catalyst-adapter-example-for-particle-data/13187)

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**Author:** [@abhinavsns](https://discourse.paraview.org/u/abhinavsns)\
**Replies:** 1\
**Last updated:** [November 5, 2023, 4:56pm UTC](https://discourse.paraview.org/t/paraview-catalyst-adapter-example-for-particle-data/13187 "2023-11-05T16:56:11Z")

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Hello, I am trying to set up catalyst for my simulation where I only have particles without connectivity info. I usually write vtp files similar to: https://www.paraview.org/Wiki/Particle\_simulations Is there an exampl…

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## [Autoscaling cluster for Paraview](https://discourse.paraview.org/t/autoscaling-cluster-for-paraview/13175)

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**Author:** [@Filip\_N](https://discourse.paraview.org/u/Filip_N)\
**Replies:** 3\
**Last updated:** [November 5, 2023, 4:45pm UTC](https://discourse.paraview.org/t/autoscaling-cluster-for-paraview/13175 "2023-11-05T16:45:20Z")

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Hi, I am creating a cluster of machines in AWS to parallelize paraview calculation and visualisation. Right now I am using a fixed number of nodes but I would like to explore the possibility of including autoscaling opti…

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## [Save Animation of two different views into one video output](https://discourse.paraview.org/t/save-animation-of-two-different-views-into-one-video-output/371)

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**Author:** [@ovais](https://discourse.paraview.org/u/ovais)\
**Replies:** 7\
**Last updated:** [October 26, 2021, 2:03pm UTC](https://discourse.paraview.org/t/save-animation-of-two-different-views-into-one-video-output/371 "2021-10-26T14:03:21Z")

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Hi there, I am using paraview to create animation video of two different views of my mesh. I want show all the times steps side by side in two different views at the same time in a single video output. This snap shot b…

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## [Generate Quadrature Scheme Dictionary - crash](https://discourse.paraview.org/t/generate-quadrature-scheme-dictionary-crash/11721)

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**Author:** [@FEngineer](https://discourse.paraview.org/u/FEngineer)\
**Replies:** 20\
**Last updated:** [November 3, 2023, 9:13pm UTC](https://discourse.paraview.org/t/generate-quadrature-scheme-dictionary-crash/11721 "2023-11-03T21:13:27Z")

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Hi, whenever I try to use the Generate Quadrature Scheme Dictionary filter on my data with just 4 hexahedral finite elements having a different number of integration points each (8-node elements with full and reduced in…

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## [Paraview crashes without loading files](https://discourse.paraview.org/t/paraview-crashes-without-loading-files/13160)

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**Author:** [@katherine\_1104](https://discourse.paraview.org/u/katherine_1104)\
**Replies:** 5\
**Last updated:** [November 3, 2023, 4:12pm UTC](https://discourse.paraview.org/t/paraview-crashes-without-loading-files/13160 "2023-11-03T16:12:22Z")

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Hi, My paraview crashes at startup since one day ago. When I open it, it takes up all the memory and crashes my computer. Is this a paraview problem or window problem? I tried to download the newest release, but it stil…

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## [Direction of Velocity magnitude](https://discourse.paraview.org/t/direction-of-velocity-magnitude/13176)

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**Author:** [@hyeonwoo](https://discourse.paraview.org/u/hyeonwoo)\
**Replies:** 1\
**Last updated:** [November 3, 2023, 3:06pm UTC](https://discourse.paraview.org/t/direction-of-velocity-magnitude/13176 "2023-11-03T15:06:17Z")

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I proceeded as shown in the figure to check the flow rate on the inlet plane. Through this process, the magnitude of the flow rate could be known. But I also want to know the direction of the flow rate. I’d app…

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## [Save Streamline animation WIHTOUT sliding over time](https://discourse.paraview.org/t/save-streamline-animation-wihtout-sliding-over-time/13070)

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**Author:** [@\_Marco](https://discourse.paraview.org/u/_Marco)\
**Replies:** 5\
**Last updated:** [November 2, 2023, 11:02pm UTC](https://discourse.paraview.org/t/save-streamline-animation-wihtout-sliding-over-time/13070 "2023-11-02T23:02:14Z")

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Hi there, I managed persuading PV to show animated streamlines, for each timestep. That means that data are indeed animated without traveling over time domain. I am interested in saving a mpg animation for just 1 timest…

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## [Data array displaying](https://discourse.paraview.org/t/data-array-displaying/13159)

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**Author:** [@Andr](https://discourse.paraview.org/u/Andr)\
**Replies:** 7\
**Last updated:** [November 2, 2023, 5:13pm UTC](https://discourse.paraview.org/t/data-array-displaying/13159 "2023-11-02T17:13:47Z")

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Hello. Help me please. I try to visualize 3 local axes, of line finite element. My exodus file was obtained from moose framework. Before it execution i outputed local axis vectors in terminal: It looks like this: x\_or…

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## [CSV to vectors works, but streamlines not generated](https://discourse.paraview.org/t/csv-to-vectors-works-but-streamlines-not-generated/13158)

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**Author:** [@rcorredorj](https://discourse.paraview.org/u/rcorredorj)\
**Replies:** 7\
**Last updated:** [November 2, 2023, 5:25pm UTC](https://discourse.paraview.org/t/csv-to-vectors-works-but-streamlines-not-generated/13158 "2023-11-02T17:25:24Z")

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Hi guys, I have a CSV where each row represent a point and a velocity vector, so 6 columns: x, y, z, and v\_x, v\_y, v\_z. I use a “Table to Points” filter followed by a “Merge Vector Components” which allow me to visualiz…

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## [Load State](https://discourse.paraview.org/t/load-state/13170)

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**Author:** [@Meri\_Gjika](https://discourse.paraview.org/u/Meri_Gjika)\
**Replies:** 4\
**Last updated:** [November 2, 2023, 5:21pm UTC](https://discourse.paraview.org/t/load-state/13170 "2023-11-02T17:21:07Z")

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Hi, I am trying to load a saved state in Paraview, but what I noticed is that any time I load it Paraview just closes, and I do not know how to solve this because I do not get any error line. Do you have any recommendat…

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## [Optix supports in headless machine](https://discourse.paraview.org/t/optix-supports-in-headless-machine/13105)

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**Author:** [@Wei](https://discourse.paraview.org/u/Wei)\
**Replies:** 8\
**Last updated:** [November 2, 2023, 1:26pm UTC](https://discourse.paraview.org/t/optix-supports-in-headless-machine/13105 "2023-11-02T13:26:59Z")

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Hi Paraview, I am using Paraview with OptiX ray tracing. My development environment is Docker container built in machine with GPU. But I found in Paraview version 5.11.1 and 5.11.2 for headless machines, there isn’t O…

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## [ParaView System Architecture Wiki](https://discourse.paraview.org/t/paraview-system-architecture-wiki/13161)

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**Author:** [@hasraz](https://discourse.paraview.org/u/hasraz)\
**Replies:** 4\
**Last updated:** [November 2, 2023, 1:24pm UTC](https://discourse.paraview.org/t/paraview-system-architecture-wiki/13161 "2023-11-02T13:24:56Z")

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Hello, I’m looking for recommendations for documents that can give a high-level overview of different components of the ParaView project. I found User guide and Developer guide (generated document for Python and C++ API)…

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## [Problem with mesh displacement visualization](https://discourse.paraview.org/t/problem-with-mesh-displacement-visualization/13163)

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**Author:** [@davide\_rotilio](https://discourse.paraview.org/u/davide_rotilio)\
**Replies:** 1\
**Last updated:** [November 2, 2023, 9:30am UTC](https://discourse.paraview.org/t/problem-with-mesh-displacement-visualization/13163 "2023-11-02T09:30:24Z")

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Hi I am dealing with multuphysic problem and wth displacement of mesh between the iterations. At the end of simulation I can see the variable the displacement intensity in the mesh on paraview as results, but I would …

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