# ParaView Support

**URL:** https://discourse.paraview.org/c/paraview-support/7.md?page=2

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

**Page:** 3

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## [Selecting filter on pipeline browser from renderViewer object](https://discourse.paraview.org/t/selecting-filter-on-pipeline-browser-from-renderviewer-object/17629)

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**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 2\
**Last updated:** [June 22, 2026, 11:15am UTC](https://discourse.paraview.org/t/selecting-filter-on-pipeline-browser-from-renderviewer-object/17629 "2026-06-22T11:15:25Z")

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Hello, if i have a bunch of filters showing on the renderViewer, is there any way to lets say, ‘click’ a specific cell and that the filter that has this cell will be selected (SetActiveSource()) to know which filter cor…

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## [Get multi block dataset structure in python](https://discourse.paraview.org/t/get-multi-block-dataset-structure-in-python/17628)

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**Author:** [@Captain\_Convergence](https://discourse.paraview.org/u/Captain_Convergence)\
**Replies:** 0\
**Last updated:** [June 19, 2026, 12:58pm UTC](https://discourse.paraview.org/t/get-multi-block-dataset-structure-in-python/17628 "2026-06-19T12:58:14Z")

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Dear support, I would like to know if there is an method to parse or get the hierarchical structure of a multi block data set in python in a dictionary, XML or similar way which is quite useful for looping over the bloc…

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## [Improving speed for thresholding of list of values (custom selection+extractSelect)](https://discourse.paraview.org/t/improving-speed-for-thresholding-of-list-of-values-custom-selection-extractselect/17625)

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**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 3\
**Last updated:** [June 19, 2026, 5:49am UTC](https://discourse.paraview.org/t/improving-speed-for-thresholding-of-list-of-values-custom-selection-extractselect/17625 "2026-06-19T05:49:16Z")

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Hello, I need to extract cells with specific values of a specific field. For this I am using the following lines of code: SetActiveSource(filter) QuerySelect(QueryString=f'(isin({fieldName}, {listOfValues}))', FieldTyp…

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## [Why is my EvenlySpacedStreamlines2D not working](https://discourse.paraview.org/t/why-is-my-evenlyspacedstreamlines2d-not-working/17627)

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**Author:** [@Buggs\_Bunny](https://discourse.paraview.org/u/Buggs_Bunny)\
**Replies:** 0\
**Last updated:** [June 18, 2026, 6:31am UTC](https://discourse.paraview.org/t/why-is-my-evenlyspacedstreamlines2d-not-working/17627 "2026-06-18T06:31:23Z")

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Hello, I want to add streamlines on a slice. I understand EvenlySpacedStreamlines2D only work in the X-Y plane so I have transformed my data so that the slice I want is in the X-Y plane. Why am I unable to see any strea…

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## [CTH Mass Analysis confusion with Material Fraction Threshold](https://discourse.paraview.org/t/cth-mass-analysis-confusion-with-material-fraction-threshold/17626)

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**Author:** [@danial.syed](https://discourse.paraview.org/u/danial.syed)\
**Replies:** 0\
**Last updated:** [June 17, 2026, 7:50pm UTC](https://discourse.paraview.org/t/cth-mass-analysis-confusion-with-material-fraction-threshold/17626 "2026-06-17T19:50:16Z")

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I’m using CTH to simulate a small aluminum 2017-t4 sphere (4mm) impacting a 12.7mm x 12.7mm Ultem 9085 plate (projectile velocity 2.835km/s and target thickness of 3.75mm). As of now, the amount of mass loss of the plate…

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## [Unexpected behavior with AppendAttributes](https://discourse.paraview.org/t/unexpected-behavior-with-appendattributes/10557)

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**Author:** [@delcmo](https://discourse.paraview.org/u/delcmo)\
**Replies:** 12\
**Last updated:** [June 16, 2026, 7:33pm UTC](https://discourse.paraview.org/t/unexpected-behavior-with-appendattributes/10557 "2026-06-16T19:33:40Z")

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Hello, I am trying to compute the difference between two variables that are stored in two different solution files. The mesh and geometry are identical between the two files. After reading the documentation, I tried to …

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## [Regression in 6.1.0: vtkPVDReader fails to parse E+0N scientific-notation timestep values (works in 6.0)](https://discourse.paraview.org/t/regression-in-6-1-0-vtkpvdreader-fails-to-parse-e-0n-scientific-notation-timestep-values-works-in-6-0/17620)

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**Author:** [@ebreard](https://discourse.paraview.org/u/ebreard)\
**Replies:** 3\
**Last updated:** [June 16, 2026, 2:35pm UTC](https://discourse.paraview.org/t/regression-in-6-1-0-vtkpvdreader-fails-to-parse-e-0n-scientific-notation-timestep-values-works-in-6-0/17620 "2026-06-16T14:35:13Z")

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When opening a .pvd file in ParaView 6.1.0, the PVD reader fails to parse timestep attribute values that are written in scientific notation with an explicit-sign exponent (e.g. 0.8006087E+01). For every timestep entry, i…

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## [VTK "Structured Points" Procedure](https://discourse.paraview.org/t/vtk-structured-points-procedure/5834)

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**Author:** [@guis1901](https://discourse.paraview.org/u/guis1901)\
**Replies:** 10\
**Last updated:** [June 16, 2026, 10:02am UTC](https://discourse.paraview.org/t/vtk-structured-points-procedure/5834 "2026-06-16T10:02:48Z")

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Hello, I am completely new to this so please feel free to refer me to an existing response/post. I have, however, searched the forum and not found what I am looking to do… I am importing data from a CSV in a X-Y-Z-Sig1…

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## [Opacity/transparency of surface based on color map](https://discourse.paraview.org/t/opacity-transparency-of-surface-based-on-color-map/17618)

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**Author:** [@PetrKryslUCSD](https://discourse.paraview.org/u/PetrKryslUCSD)\
**Replies:** 1\
**Last updated:** [June 15, 2026, 6:18am UTC](https://discourse.paraview.org/t/opacity-transparency-of-surface-based-on-color-map/17618 "2026-06-15T06:18:47Z")

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This used to work: I would map scalars to colors, and then the transfer function could be used to change the transparency of the colors. I can’t get it to work anymore (of course, it is possible that I misremember how to…

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## [How does one add padding to the data axes labels? or maybe even some offset?](https://discourse.paraview.org/t/how-does-one-add-padding-to-the-data-axes-labels-or-maybe-even-some-offset/17026)

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**Author:** [@abidoescfd](https://discourse.paraview.org/u/abidoescfd)\
**Replies:** 8\
**Last updated:** [June 14, 2026, 9:23pm UTC](https://discourse.paraview.org/t/how-does-one-add-padding-to-the-data-axes-labels-or-maybe-even-some-offset/17026 "2026-06-14T21:23:47Z")

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Hello everyone! ParaView is amazing, but I have found that I couldn’t offset my data axes labels from the ticks. I really need the numbers on the axes grid to be large, and the same needs to be done with the label, but u…

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## [How to build ParaView with multiserver support?](https://discourse.paraview.org/t/how-to-build-paraview-with-multiserver-support/17617)

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**Author:** [@CsatiZoltan](https://discourse.paraview.org/u/CsatiZoltan)\
**Replies:** 7\
**Last updated:** [June 12, 2026, 1:12pm UTC](https://discourse.paraview.org/t/how-to-build-paraview-with-multiserver-support/17617 "2026-06-12T13:12:12Z")

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I would like my client to be able to connect to multiple servers. I heard that ParaView has to be built with multiserver option to achieve it. Although I looked at the CMake options with ccmake in the ParaView superbuild…

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## [How to know whether a script is executed by ParaView Python?](https://discourse.paraview.org/t/how-to-know-whether-a-script-is-executed-by-paraview-python/17610)

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**Author:** [@CsatiZoltan](https://discourse.paraview.org/u/CsatiZoltan)\
**Replies:** 6\
**Last updated:** [June 10, 2026, 3:51pm UTC](https://discourse.paraview.org/t/how-to-know-whether-a-script-is-executed-by-paraview-python/17610 "2026-06-10T15:51:56Z")

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Is there a way to know at runtime if a Python file is executed from the ParaView environment (pvpython, pvbatch or from the Python shell of the GUI) or from a standard Python interpreter? I checked the environment variab…

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## [Visualisation problem](https://discourse.paraview.org/t/visualisation-problem/17611)

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**Author:** [@James0306](https://discourse.paraview.org/u/James0306)\
**Replies:** 1\
**Last updated:** [June 10, 2026, 2:07pm UTC](https://discourse.paraview.org/t/visualisation-problem/17611 "2026-06-10T14:07:57Z")

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Title: ParaView shows strange black/white distorted viewport after zooming Hello, I am using ParaView on Windows. Recently, the 3D render view suddenly became abnormal. After I zoom or scroll the mouse wheel, the viewp…

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## [Center Colourmap to Zero](https://discourse.paraview.org/t/center-colourmap-to-zero/17587)

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**Author:** [@Buggs\_Bunny](https://discourse.paraview.org/u/Buggs_Bunny)\
**Replies:** 11\
**Last updated:** [June 10, 2026, 8:39am UTC](https://discourse.paraview.org/t/center-colourmap-to-zero/17587 "2026-06-10T08:39:24Z")

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Hey, I have a dataset that is uneven about zero, I want to use a diverging color map. Is there a way I can set my zero velocity to be at the center of the color map? I have several datasets and timesteps so I would prefe…

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## [connectivity removing global point & cell Ids?](https://discourse.paraview.org/t/connectivity-removing-global-point-cell-ids/17579)

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**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 4\
**Last updated:** [June 10, 2026, 7:15am UTC](https://discourse.paraview.org/t/connectivity-removing-global-point-cell-ids/17579 "2026-06-10T07:15:54Z")

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Hello, I think i found a bug, when i apply connectivity to extract the largest region of an source (tested unstructured grid and uniform rectilinear image) the fields of GlobalPointIds and GlobalCellIds disappear which …

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## [Programmable source with Tecplot reader](https://discourse.paraview.org/t/programmable-source-with-tecplot-reader/4005)

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**Author:** [@MiguelAngelAGUIRRE](https://discourse.paraview.org/u/MiguelAngelAGUIRRE)\
**Replies:** 4\
**Last updated:** [June 9, 2026, 2:33pm UTC](https://discourse.paraview.org/t/programmable-source-with-tecplot-reader/4005 "2026-06-09T14:33:05Z")

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Hello, I’m trying to open a Tecplot dat file within a Programmable Source. My objective is to open the file, keep doing some operations with the arrays and then send everything to the output (i.e., the original arrays +…

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## [programmable filter get common points and select cells in function of this points](https://discourse.paraview.org/t/programmable-filter-get-common-points-and-select-cells-in-function-of-this-points/17578)

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**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 2\
**Last updated:** [June 8, 2026, 6:17am UTC](https://discourse.paraview.org/t/programmable-filter-get-common-points-and-select-cells-in-function-of-this-points/17578 "2026-06-08T06:17:24Z")

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Hello, I have two sources that are overlapping that have common global ids (they are coming from a common source but divided), to better exemplify, here is a small example to achieve this: from paraview.simple import …

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## [Paraview 6.1.0 displays a white screen](https://discourse.paraview.org/t/paraview-6-1-0-displays-a-white-screen/17592)

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**Author:** [@Odyop89](https://discourse.paraview.org/u/Odyop89)\
**Replies:** 0\
**Last updated:** [June 2, 2026, 4:18pm UTC](https://discourse.paraview.org/t/paraview-6-1-0-displays-a-white-screen/17592 "2026-06-02T16:18:51Z")

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Hello, I would like to use Paraview to analyze data from the Digital Image Correlation software DICe. Unfortunately, I am having an issue where the screen remains white when I try to launch the program. (see image belo…

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## [Paraview slices of same source but different location in view port](https://discourse.paraview.org/t/paraview-slices-of-same-source-but-different-location-in-view-port/17564)

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**Author:** [@cfd\_payne](https://discourse.paraview.org/u/cfd_payne)\
**Replies:** 3\
**Last updated:** [June 2, 2026, 5:54am UTC](https://discourse.paraview.org/t/paraview-slices-of-same-source-but-different-location-in-view-port/17564 "2026-06-02T05:54:45Z")

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I have a situation in a simulation to show a slice of the same source but with different variable to be shown at different at different location in a view port.. \[ Ex: imagine a propeller Right,Left , one to be shown as…

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## [Paraview Python Shell becomes inactive](https://discourse.paraview.org/t/paraview-python-shell-becomes-inactive/17588)

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**Author:** [@Mezzerine](https://discourse.paraview.org/u/Mezzerine)\
**Replies:** 2\
**Last updated:** [May 28, 2026, 2:21pm UTC](https://discourse.paraview.org/t/paraview-python-shell-becomes-inactive/17588 "2026-05-28T14:21:51Z")

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I have some version of below commands I run with the python shell inside paraview (either v5.13 or v6.0). And at a certain point the commands don’t seem to do anything anymore. Not even an error message is given if I put…

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## [Version 6.1.1 no longer reads my EnSight case files](https://discourse.paraview.org/t/version-6-1-1-no-longer-reads-my-ensight-case-files/17583)

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**Author:** [@elynch](https://discourse.paraview.org/u/elynch)\
**Replies:** 2\
**Last updated:** [May 28, 2026, 1:37pm UTC](https://discourse.paraview.org/t/version-6-1-1-no-longer-reads-my-ensight-case-files/17583 "2026-05-28T13:37:29Z")

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ensight\_case\_issue.zip (700.2 KB) I’ve attached a dataset in EnSight Gold format. There are three versions of the case file. original.case is the format we have been writing for years and which ParaView has been able …

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## [Is threre a way to interact with PythonView?](https://discourse.paraview.org/t/is-threre-a-way-to-interact-with-pythonview/7108)

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**Author:** [@ymjia](https://discourse.paraview.org/u/ymjia)\
**Replies:** 4\
**Last updated:** [May 27, 2026, 10:50am UTC](https://discourse.paraview.org/t/is-threre-a-way-to-interact-with-pythonview/7108 "2026-05-27T10:50:27Z")

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I am using matplotlib through PythonView, and try to do something respond to a mouse click, Is it possible? I found the render() function will re-run after mouse drag in PythonView, if the render function can get some m…

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## [How to change the zoom level when running pvbatch script](https://discourse.paraview.org/t/how-to-change-the-zoom-level-when-running-pvbatch-script/17577)

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**Author:** [@Nikolaos\_Beratlis](https://discourse.paraview.org/u/Nikolaos_Beratlis)\
**Replies:** 2\
**Last updated:** [May 22, 2026, 3:41pm UTC](https://discourse.paraview.org/t/how-to-change-the-zoom-level-when-running-pvbatch-script/17577 "2026-05-22T15:41:27Z")

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I have created a Paraview state file .pvsm. When I ran a python script that loads the state file and saves an animation the zoom level is different than then one when I was creating the state file in Paraview. Is it poss…

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## [.VTU files](https://discourse.paraview.org/t/vtu-files/17548)

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**Author:** [@jvcsantos](https://discourse.paraview.org/u/jvcsantos)\
**Replies:** 11\
**Last updated:** [May 21, 2026, 5:02pm UTC](https://discourse.paraview.org/t/vtu-files/17548 "2026-05-21T17:02:19Z")

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Hi! I’m a new user of Paraview and trying to visualize some files in .vtu format, but I don’t know how. Best regards, João

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## [Exporting 16-bit images from paraview](https://discourse.paraview.org/t/exporting-16-bit-images-from-paraview/17576)

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**Author:** [@aerogt3](https://discourse.paraview.org/u/aerogt3)\
**Replies:** 3\
**Last updated:** [May 21, 2026, 12:28pm UTC](https://discourse.paraview.org/t/exporting-16-bit-images-from-paraview/17576 "2026-05-21T12:28:12Z")

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Is there any way to export 16 bit images (in any format) from paraview? I don’t see anything in the GUI but perhaps there’s a hidden/scriptable capability.

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## [Ubuntu 26.04 ParaView compile and run issues](https://discourse.paraview.org/t/ubuntu-26-04-paraview-compile-and-run-issues/17563)

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**Author:** [@jfavre](https://discourse.paraview.org/u/jfavre)\
**Replies:** 10\
**Last updated:** [May 20, 2026, 3:30pm UTC](https://discourse.paraview.org/t/ubuntu-26-04-paraview-compile-and-run-issues/17563 "2026-05-20T15:30:27Z")

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Dear ParaView support I have moved to an Ubuntu 26.04 laptop with an NVIDIA GPU, and attempting to compile ParaView v6.1. As a reference, I have also downloaded the pre-compiled binary (ParaView-6.1.0-MPI-Linux-Python3.…

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## [How to generate a short video in paraview](https://discourse.paraview.org/t/how-to-generate-a-short-video-in-paraview/17572)

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**Author:** [@Monirul25](https://discourse.paraview.org/u/Monirul25)\
**Replies:** 1\
**Last updated:** [May 19, 2026, 8:40pm UTC](https://discourse.paraview.org/t/how-to-generate-a-short-video-in-paraview/17572 "2026-05-19T20:40:38Z")

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Respected Experts, I am very new to using ParaView, and I want to learn how to create simulation videos step by step. I would like to understand the basics, such as loading simulation data, changing colors, creating an…

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## [ParaView 6.1.0 severe UI lag with NVIDIA driver 595 — ?? Qt 6.9 interaction](https://discourse.paraview.org/t/paraview-6-1-0-severe-ui-lag-with-nvidia-driver-595-qt-6-9-interaction/17570)

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**Author:** [@karl.randle](https://discourse.paraview.org/u/karl.randle)\
**Replies:** 0\
**Last updated:** [May 19, 2026, 10:12am UTC](https://discourse.paraview.org/t/paraview-6-1-0-severe-ui-lag-with-nvidia-driver-595-qt-6-9-interaction/17570 "2026-05-19T10:12:30Z")

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Summary ParaView 6.1.0 is extremely slow on a high-end workstation with NVIDIA driver 595.97 (RTX PRO 4000 Blackwell). The slowness affects toggling visibility of pipeline items, switching representations (e.g. outline t…

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## [Visualization error](https://discourse.paraview.org/t/visualization-error/17569)

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**Author:** [@rd.airends](https://discourse.paraview.org/u/rd.airends)\
**Replies:** 2\
**Last updated:** [May 19, 2026, 7:40am UTC](https://discourse.paraview.org/t/visualization-error/17569 "2026-05-19T07:40:56Z")

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Good Morning. I’ve installed paraview on Windows 11, to use it with cfdOf on freecad. When I open it, the window of the software is black, and I see the software GUI like I’m looking from it’s side. I know this descrip…

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## [Paraview shows wrong output, while opening OpenFOAM blockmesh file](https://discourse.paraview.org/t/paraview-shows-wrong-output-while-opening-openfoam-blockmesh-file/17568)

<div class="topic-metadata">

**Author:** [@E.InfantBerwin](https://discourse.paraview.org/u/E.InfantBerwin)\
**Replies:** 1\
**Last updated:** [May 18, 2026, 7:09am UTC](https://discourse.paraview.org/t/paraview-shows-wrong-output-while-opening-openfoam-blockmesh-file/17568 "2026-05-18T07:09:10Z")

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Hi, Greetings! I tried to open a openfoam block mesh file in paraview, the mesh appears like, as if there is some graphical issue. please help me to resolve this issue. I am using debian os and I have installed openfo…

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