# Top

**URL:** https://discourse.paraview.org/top.md?page=67&period=all

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**Page:** 68

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## [Boundary edges not recognized](https://discourse.paraview.org/t/boundary-edges-not-recognized/11349)

<div class="topic-metadata">

**Author:** [@Frankx9](https://discourse.paraview.org/u/Frankx9)\
**Replies:** 7\
**Last updated:** [February 7, 2023, 4:02pm UTC](https://discourse.paraview.org/t/boundary-edges-not-recognized/11349 "2023-02-07T16:02:26Z")

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Hi, I’m trying to extract the airfoil surface from my unstructured data set to plot Cp over airfoil surface. I was following the procedure given in: but when I select boundary edges and then I try to extract cells by…

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## [Running Catalyst CFullExample in the ParaView UI](https://discourse.paraview.org/t/running-catalyst-cfullexample-in-the-paraview-ui/677)

<div class="topic-metadata">

**Author:** [@knolla](https://discourse.paraview.org/u/knolla)\
**Replies:** 4\
**Last updated:** [November 28, 2018, 11:30pm UTC](https://discourse.paraview.org/t/running-catalyst-cfullexample-in-the-paraview-ui/677 "2018-11-28T23:30:27Z")

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How does one show the Catalyst example (specifically, CFullExample) in ParaView through the UI? CTest works: Start 5: CFullExampleTest 5/2787 Test #5: CFullExampleTest … Passed 1.04 sec I’d assume you just do…

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## [Paraview Support](https://discourse.paraview.org/t/paraview-support/858)

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**Author:** [@richardinocnt](https://discourse.paraview.org/u/richardinocnt)\
**Replies:** 3\
**Last updated:** [November 8, 2018, 6:39pm UTC](https://discourse.paraview.org/t/paraview-support/858 "2018-11-08T18:39:11Z")

</div>

Hello everybody, I will aprreciate if you can help me about the Paraview in Windows 10, I tried some versión of paraview, but when i want to open, in some cases appear some rectangles, in others nothing. Please… help me…

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## [Annotating a filter's input properties](https://discourse.paraview.org/t/annotating-a-filters-input-properties/6361)

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**Author:** [@krvorren](https://discourse.paraview.org/u/krvorren)\
**Replies:** 7\
**Last updated:** [February 8, 2021, 4:00pm UTC](https://discourse.paraview.org/t/annotating-a-filters-input-properties/6361 "2021-02-08T16:00:48Z")

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Hello, I’m trying to annotate the rotation and translation input parameters of a Transform filter to the top left corner of my render view, but I can’t figure out how to access those properties. I’ve tried two things: …

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## ["Clean" installation of ParaView 5.10 with superbuild](https://discourse.paraview.org/t/clean-installation-of-paraview-5-10-with-superbuild/9043)

<div class="topic-metadata">

**Author:** [@robertsawko](https://discourse.paraview.org/u/robertsawko)\
**Replies:** 6\
**Last updated:** [May 19, 2022, 10:41am UTC](https://discourse.paraview.org/t/clean-installation-of-paraview-5-10-with-superbuild/9043 "2022-05-19T10:41:53Z")

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Hi, I am really sorry for starting another thread on this… After some successful PV5.9 I decided to spend some time to tidy up my environment and upgrade to 5.10 as I want to explore the topology toolkit. I have automa…

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## [Installing paraview separtaely for use with OpenFoam](https://discourse.paraview.org/t/installing-paraview-separtaely-for-use-with-openfoam/2475)

<div class="topic-metadata">

**Author:** [@james.willie](https://discourse.paraview.org/u/james.willie)\
**Replies:** 3\
**Last updated:** [August 27, 2019, 3:10am UTC](https://discourse.paraview.org/t/installing-paraview-separtaely-for-use-with-openfoam/2475 "2019-08-27T03:10:36Z")

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Hi There, I have windows as my main operating system and with a Virtual Machine i have installed Ubuntu 18.04 and i have installed OpenFoam7 and it is working fine but i cannot seem to install Paraview. I am trying to n…

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## [Paraview 5.10 immediately crashes when loading NVIDIA IndeX plugin](https://discourse.paraview.org/t/paraview-5-10-immediately-crashes-when-loading-nvidia-index-plugin/9082)

<div class="topic-metadata">

**Author:** [@BenWibking](https://discourse.paraview.org/u/BenWibking)\
**Replies:** 6\
**Last updated:** [March 10, 2022, 4:32pm UTC](https://discourse.paraview.org/t/paraview-5-10-immediately-crashes-when-loading-nvidia-index-plugin/9082 "2022-03-10T16:32:12Z")

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Using Paraview 5.10, I connect to a remote pvserver via a localhost ssh tunnel to the remote cluster node. I then try to load the pvNVIDIAIndeX plugin from the ‘remote plugins’ list, click ‘load selected’, and the client…

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## [What is the correct workflow to develop custom interactive widget in ParaView](https://discourse.paraview.org/t/what-is-the-correct-workflow-to-develop-custom-interactive-widget-in-paraview/9189)

<div class="topic-metadata">

**Author:** [@Cam](https://discourse.paraview.org/u/Cam)\
**Replies:** 8\
**Last updated:** [March 23, 2022, 8:31am UTC](https://discourse.paraview.org/t/what-is-the-correct-workflow-to-develop-custom-interactive-widget-in-paraview/9189 "2022-03-23T08:31:45Z")

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Dear ParaView community, I am still learning ParaView and I recently start to implement a custom 3D interactive widget. This is the workflow that I summarized (please correct me if I am wrong) Implement vtkMyCustomWid…

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## [file parallelism with obj/stl](https://discourse.paraview.org/t/file-parallelism-with-obj-stl/3075)

<div class="topic-metadata">

**Author:** [@gilcu2](https://discourse.paraview.org/u/gilcu2)\
**Replies:** 5\
**Last updated:** [December 2, 2019, 11:54am UTC](https://discourse.paraview.org/t/file-parallelism-with-obj-stl/3075 "2019-12-02T11:54:37Z")

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I have a python script that read obj/mtl files and shows the right material. it uses the obj\_mtl\_importer.py shared here. When I run it under mpi/pvbatch doesn’t escalate. I think because of the way to applying the mate…

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## [Timestep in FieldData](https://discourse.paraview.org/t/timestep-in-fielddata/9139)

<div class="topic-metadata">

**Author:** [@jpmorr](https://discourse.paraview.org/u/jpmorr)\
**Replies:** 2\
**Last updated:** [March 8, 2022, 4:27pm UTC](https://discourse.paraview.org/t/timestep-in-fielddata/9139 "2022-03-08T16:27:13Z")

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I’m trying to understand how to Use FieldData and other possible uses of FieldData. I understand that one of the main uses is to store the time or timesteps associated with a file. However, I’m not sure if there is a sp…

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## [Error when loading a .vtu file](https://discourse.paraview.org/t/error-when-loading-a-vtu-file/4891)

<div class="topic-metadata">

**Author:** [@Em\_W](https://discourse.paraview.org/u/Em_W)\
**Replies:** 4\
**Last updated:** [July 21, 2020, 12:50pm UTC](https://discourse.paraview.org/t/error-when-loading-a-vtu-file/4891 "2020-07-21T12:50:25Z")

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Hi, I am new to ParaView and I’m trying to load a .vtu file of a MODFLOW USG grid. The .vtu file was created in python 3.7.6 on a 64 bit windows machine. I have seen references to an issue where ParaView can only read …

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## [Qt minimum version will be updated to 5.15](https://discourse.paraview.org/t/qt-minimum-version-will-be-updated-to-5-15/17354)

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**Author:** [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)\
**Replies:** 5\
**Last updated:** [December 9, 2025, 12:14am UTC](https://discourse.paraview.org/t/qt-minimum-version-will-be-updated-to-5-15/17354 "2025-12-09T00:14:46Z")

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ParaView currently does not build against Qt 5.12, which was end-of-lifed in 2021. We are planning to make the minimum 5.15 for ParaView 6.1. Please let us know if that causes any difficulties. Update: In ParaView 6.2, …

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## [Numpy package not found in paraview 5.10](https://discourse.paraview.org/t/numpy-package-not-found-in-paraview-5-10/9141)

<div class="topic-metadata">

**Author:** [@Darz](https://discourse.paraview.org/u/Darz)\
**Replies:** 3\
**Last updated:** [March 14, 2022, 7:40am UTC](https://discourse.paraview.org/t/numpy-package-not-found-in-paraview-5-10/9141 "2022-03-14T07:40:24Z")

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Hello, I get a run time error when I try to use python calculator filter in paraview 5.10 in ubuntu 20.04. Stating that numpy package is not there in python library. Traceback (most recent call last): File “”, line 2,…

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## [trame ImportError(IMPROPER\_VTK\_MSG)](https://discourse.paraview.org/t/trame-importerror-improper-vtk-msg/10726)

<div class="topic-metadata">

**Author:** [@bigfooted](https://discourse.paraview.org/u/bigfooted)\
**Replies:** 3\
**Last updated:** [November 13, 2022, 11:30pm UTC](https://discourse.paraview.org/t/trame-importerror-improper-vtk-msg/10726 "2022-11-13T23:30:06Z")

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when running the vtk tutorial of trame, I now get this error: python ./01\_vtk/solution\_cone.py --port 1234 Traceback (most recent call last): File “/home/user/Codes/trame-tutorial/./01\_vtk/solution\_cone.py”, line 58,…

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## [How to set interpolation](https://discourse.paraview.org/t/how-to-set-interpolation/12508)

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**Author:** [@PetrKryslUCSD](https://discourse.paraview.org/u/PetrKryslUCSD)\
**Replies:** 6\
**Last updated:** [July 12, 2023, 5:43pm UTC](https://discourse.paraview.org/t/how-to-set-interpolation/12508 "2023-07-12T17:43:51Z")

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Visualizing complex vibration modes - ParaView Support - ParaView The above thread suggested how to animate a complex field (harmonic vibration). I wrote a bit of code to dump a Python script to animate the motion. Un…

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## [Maximum Intensity Projection for volume rendering](https://discourse.paraview.org/t/maximum-intensity-projection-for-volume-rendering/986)

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**Author:** [@david-hoffman](https://discourse.paraview.org/u/david-hoffman)\
**Replies:** 2\
**Last updated:** [January 22, 2025, 2:31am UTC](https://discourse.paraview.org/t/maximum-intensity-projection-for-volume-rendering/986 "2025-01-22T02:31:44Z")

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Is there any way to do a maximum intensity projection in ParaView? This is a function that’s supported by other visualization packages such as Arivis, Amira, Imaris.

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## [Vorticity Contour problem](https://discourse.paraview.org/t/vorticity-contour-problem/10360)

<div class="topic-metadata">

**Author:** [@sopoyoon](https://discourse.paraview.org/u/sopoyoon)\
**Replies:** 2\
**Last updated:** [September 21, 2022, 7:21am UTC](https://discourse.paraview.org/t/vorticity-contour-problem/10360 "2022-09-21T07:21:17Z")

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Hello, everyone! I have a vti file where 2D vorticity data in. 2\_9683.vti (770.3 KB) When I try to plot the vorticity contour using contour, I was not able to select vorticity data. How do I plot the contours like th…

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## [Black background with volume rendering](https://discourse.paraview.org/t/black-background-with-volume-rendering/11388)

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**Author:** [@Kei\_Yamamoto](https://discourse.paraview.org/u/Kei_Yamamoto)\
**Replies:** 6\
**Last updated:** [May 8, 2023, 5:02pm UTC](https://discourse.paraview.org/t/black-background-with-volume-rendering/11388 "2023-05-08T17:02:06Z")

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When I use volume rendering of the velocity data set, the background becomes black and I can’t find a way to change the background color. Please see the attached image as an example. Seems like it’s the same error that …

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## [volume rendering of multi-block dataset](https://discourse.paraview.org/t/volume-rendering-of-multi-block-dataset/3655)

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**Author:** [@thomas.engels](https://discourse.paraview.org/u/thomas.engels)\
**Replies:** 3\
**Last updated:** [February 25, 2020, 1:28pm UTC](https://discourse.paraview.org/t/volume-rendering-of-multi-block-dataset/3655 "2020-02-25T13:28:29Z")

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Dear Community, is there a way to use volume rendering on multi-block datasets? My data consists of regular (Cartesian) blocks with different spacings. It is point data (but can of course be converted to cell data). The…

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## [Segmentation fault in Paraview](https://discourse.paraview.org/t/segmentation-fault-in-paraview/13021)

<div class="topic-metadata">

**Author:** [@M\_Kumar](https://discourse.paraview.org/u/M_Kumar)\
**Replies:** 5\
**Last updated:** [October 12, 2023, 3:14pm UTC](https://discourse.paraview.org/t/segmentation-fault-in-paraview/13021 "2023-10-12T15:14:17Z")

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Hi, I have installed Paraview in my Ubuntu 22.04 system using "sudo apt-get install paraview. After installation I opened paraview but got following error Loguru caught a signal: SIGSEGV Stack trace: 89 0x56448…

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## [Pareview reads my single file fine but not as group!](https://discourse.paraview.org/t/pareview-reads-my-single-file-fine-but-not-as-group/11281)

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**Author:** [@Cavid\_Azimi](https://discourse.paraview.org/u/Cavid_Azimi)\
**Replies:** 4\
**Last updated:** [January 27, 2023, 7:42pm UTC](https://discourse.paraview.org/t/pareview-reads-my-single-file-fine-but-not-as-group/11281 "2023-01-27T19:42:32Z")

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Paraview reads single file without asking any specific reader and it works perfectly fine. However, when I want to read the files as group, it asks reader to choose and I have no idea what to choose?! I check most of the…

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## [Cinema Database Output](https://discourse.paraview.org/t/cinema-database-output/1337)

<div class="topic-metadata">

**Author:** [@Niklas](https://discourse.paraview.org/u/Niklas)\
**Replies:** 2\
**Last updated:** [March 27, 2019, 2:59pm UTC](https://discourse.paraview.org/t/cinema-database-output/1337 "2019-03-27T14:59:27Z")

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Dear All, I am trying for some time now to get Cinema Database output working. I am using ParaView 5.6 and ParaView Master from Gitlab and the new Catalyst/Cinema exporter within The output usually works and produces a…

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## [vtkGeovisCorePython missing in Paraview?](https://discourse.paraview.org/t/vtkgeoviscorepython-missing-in-paraview/3424)

<div class="topic-metadata">

**Author:** [@chhu](https://discourse.paraview.org/u/chhu)\
**Replies:** 4\
**Last updated:** [January 29, 2020, 9:27pm UTC](https://discourse.paraview.org/t/vtkgeoviscorepython-missing-in-paraview/3424 "2020-01-29T21:27:52Z")

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Hi, This is referring to https://gitlab.kitware.com/paraview/paraview/issues/19623 which I would still consider a bug. You explained in your own blog how to write a filter to create a map projection (I need more than Me…

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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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## [Can I embed a Paraview interactor as a pyqt5 widget?](https://discourse.paraview.org/t/can-i-embed-a-paraview-interactor-as-a-pyqt5-widget/5433)

<div class="topic-metadata">

**Author:** [@T\_K](https://discourse.paraview.org/u/T_K)\
**Replies:** 2\
**Last updated:** [October 23, 2021, 7:05pm UTC](https://discourse.paraview.org/t/can-i-embed-a-paraview-interactor-as-a-pyqt5-widget/5433 "2021-10-23T19:05:53Z")

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I simple example of a paraview script is from paraview.simple import \* sphere = Sphere…

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## [Question about debugging practice](https://discourse.paraview.org/t/question-about-debugging-practice/4245)

<div class="topic-metadata">

**Author:** [@cobo](https://discourse.paraview.org/u/cobo)\
**Replies:** 2\
**Last updated:** [May 4, 2020, 3:01pm UTC](https://discourse.paraview.org/t/question-about-debugging-practice/4245 "2020-05-04T15:01:48Z")

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Quite often I am debugging my code by simply inserting some temporary output instead of running the software in the debugger. I am sure that I am not alone with this practice, for many good reasons! But there is one thin…

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## [pvbinsdash buildbot paused](https://discourse.paraview.org/t/pvbinsdash-buildbot-paused/1281)

<div class="topic-metadata">

**Author:** [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)\
**Replies:** 7\
**Last updated:** [February 18, 2019, 6:05pm UTC](https://discourse.paraview.org/t/pvbinsdash-buildbot-paused/1281 "2019-02-18T18:05:17Z")

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I am working on pvbinsdash to get paraview building again, so it is paused. I will unpause it when done.

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## [Particle Tracing until predefined z-coordinate](https://discourse.paraview.org/t/particle-tracing-until-predefined-z-coordinate/1604)

<div class="topic-metadata">

**Author:** [@gesli](https://discourse.paraview.org/u/gesli)\
**Replies:** 3\
**Last updated:** [April 8, 2019, 4:19pm UTC](https://discourse.paraview.org/t/particle-tracing-until-predefined-z-coordinate/1604 "2019-04-08T16:19:28Z")

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Hey, I got a flow in a pipe in z-direction and like to trace the particle. I like to evaluate the homogenity of an inserted point source at the end in a x-y sectional view. Unfortunately I get very different z-coordin…

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## [Read vtk binary file, modify the data and write](https://discourse.paraview.org/t/read-vtk-binary-file-modify-the-data-and-write/9489)

<div class="topic-metadata">

**Author:** [@JunmingDuan](https://discourse.paraview.org/u/JunmingDuan)\
**Replies:** 1\
**Last updated:** [April 21, 2022, 1:43pm UTC](https://discourse.paraview.org/t/read-vtk-binary-file-modify-the-data-and-write/9489 "2022-04-21T13:43:57Z")

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Dear all, I am trying to read a .vts file in the attachment using python. test.vts (2.5 KB) It is a 10x5 2D mesh with 1 degree of freedom on each point. Since it is indeed a periodic domain, I want to add another row…

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## [image reader read data as cell data instead of point data](https://discourse.paraview.org/t/image-reader-read-data-as-cell-data-instead-of-point-data/17375)

<div class="topic-metadata">

**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 4\
**Last updated:** [December 23, 2025, 7:18am UTC](https://discourse.paraview.org/t/image-reader-read-data-as-cell-data-instead-of-point-data/17375 "2025-12-23T07:18:50Z")

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As mentionned here: the tiff reader reads the data as point data (and interpolates it) the same happens with the image reader (when reading raw data the same happens). when originally this data was voxel information, not…

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## [Weird plot over line formatting | ParaView 5.9 on Ubuntu 20.04](https://discourse.paraview.org/t/weird-plot-over-line-formatting-paraview-5-9-on-ubuntu-20-04/6780)

<div class="topic-metadata">

**Author:** [@vachan-potluri](https://discourse.paraview.org/u/vachan-potluri)\
**Replies:** 5\
**Last updated:** [March 25, 2021, 2:00pm UTC](https://discourse.paraview.org/t/weird-plot-over-line-formatting-paraview-5-9-on-ubuntu-20-04/6780 "2021-03-25T14:00:29Z")

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Hi, I have ParaView 5.9 binary installation on Ubuntu 20.04. Strangely, the entire plot over line window uses dotted lines alone, even for text. I have attached a screenshot for reference. Is this an issue of depende…

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## [Good practice for building Catalyst](https://discourse.paraview.org/t/good-practice-for-building-catalyst/1393)

<div class="topic-metadata">

**Author:** [@bastian](https://discourse.paraview.org/u/bastian)\
**Replies:** 2\
**Last updated:** [March 12, 2019, 1:04pm UTC](https://discourse.paraview.org/t/good-practice-for-building-catalyst/1393 "2019-03-12T13:04:19Z")

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I’m intending to integrate Catalyst-based analysis into the CFD code I use so I figured I would for now build and use a feature-rich Catalyst until I have figured out what parts of Catalyst I actually need in production. …

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## [How to switch left and right image in Crystaleyes Stereo 3D Visualization?](https://discourse.paraview.org/t/how-to-switch-left-and-right-image-in-crystaleyes-stereo-3d-visualization/5056)

<div class="topic-metadata">

**Author:** [@mwl](https://discourse.paraview.org/u/mwl)\
**Replies:** 4\
**Last updated:** [August 27, 2020, 7:34am UTC](https://discourse.paraview.org/t/how-to-switch-left-and-right-image-in-crystaleyes-stereo-3d-visualization/5056 "2020-08-27T07:34:33Z")

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For stereo 3D visualization (using Crystaleyes), is there an easy way to switch the left and right images? Frequently, when starting Crystaleyes, the left and right images would be reversed. The only way we have found to…

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## [Open a Tecplot file .dat with block and cell centered formats](https://discourse.paraview.org/t/open-a-tecplot-file-dat-with-block-and-cell-centered-formats/5413)

<div class="topic-metadata">

**Author:** [@Gianluca](https://discourse.paraview.org/u/Gianluca)\
**Replies:** 1\
**Last updated:** [September 26, 2020, 1:19pm UTC](https://discourse.paraview.org/t/open-a-tecplot-file-dat-with-block-and-cell-centered-formats/5413 "2020-09-26T13:19:15Z")

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Hi, I am trying to open a Tecplot file .dat in attachment through ParaView 5.4.1. It is a sphere with triangular mesh and it is printed by the CFD solver with datapacing=block and with a varlocation=cellcentered formats…

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## [Using VTK API in CFD code](https://discourse.paraview.org/t/using-vtk-api-in-cfd-code/12116)

<div class="topic-metadata">

**Author:** [@Suman\_Vajjala](https://discourse.paraview.org/u/Suman_Vajjala)\
**Replies:** 5\
**Last updated:** [May 19, 2023, 7:21am UTC](https://discourse.paraview.org/t/using-vtk-api-in-cfd-code/12116 "2023-05-19T07:21:56Z")

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I am Suman Vajjala and I am developing a parallel, high order, unstructured grid based CFD code in C++ for LES/DNS. As I will be using high order mesh elements, I decided to use Paraview as my main visualization software…

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## [Surface LIC visualization problem](https://discourse.paraview.org/t/surface-lic-visualization-problem/2783)

<div class="topic-metadata">

**Author:** [@wilove](https://discourse.paraview.org/u/wilove)\
**Replies:** 1\
**Last updated:** [October 16, 2019, 1:53pm UTC](https://discourse.paraview.org/t/surface-lic-visualization-problem/2783 "2019-10-16T13:53:58Z")

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I’m trying to use a Python script in order to automate a CFD postprocessing. Everything works quite smoothly except for the surface lic visualization. I get images like this one (with discontinuity in different part of t…

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## [How to automate collecting Timer Log results](https://discourse.paraview.org/t/how-to-automate-collecting-timer-log-results/761)

<div class="topic-metadata">

**Author:** [@samy](https://discourse.paraview.org/u/samy)\
**Replies:** 4\
**Last updated:** [October 19, 2018, 9:24pm UTC](https://discourse.paraview.org/t/how-to-automate-collecting-timer-log-results/761 "2018-10-19T21:24:00Z")

</div>

Hello everyone, I have a big data set that i want to measure the rendering and data processing speeds. I just learned about Tools-\> timer Log. However, it looks like i need to refresh it manually. Ideally, I want to pla…

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## [Cannot set view background in python](https://discourse.paraview.org/t/cannot-set-view-background-in-python/13091)

<div class="topic-metadata">

**Author:** [@RemDelaporteMathurin](https://discourse.paraview.org/u/RemDelaporteMathurin)\
**Replies:** 8\
**Last updated:** [October 25, 2023, 5:37pm UTC](https://discourse.paraview.org/t/cannot-set-view-background-in-python/13091 "2023-10-25T17:37:24Z")

</div>

Hi all I am trying to set the background colour from the python interface (from conda). I’m doing something like: for view in \[renderView1, renderView2, renderView3, renderView4\]: view.Background = \[0.0, 0.0, 0.0\]…

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## [Transfer data from matlab to ParaView (to process with ttk)](https://discourse.paraview.org/t/transfer-data-from-matlab-to-paraview-to-process-with-ttk/11740)

<div class="topic-metadata">

**Author:** [@kokebdese](https://discourse.paraview.org/u/kokebdese)\
**Replies:** 2\
**Last updated:** [March 29, 2023, 1:30pm UTC](https://discourse.paraview.org/t/transfer-data-from-matlab-to-paraview-to-process-with-ttk/11740 "2023-03-29T13:30:13Z")

</div>

Dear all, Assume if I created a 3D surface of my data using the isosurface function in the matlab. I want to transfer this data to PraView and How can I do that? Here below is the sample script taken from the matlab. …

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## [Annotate date in the viewport of the 3D visualization](https://discourse.paraview.org/t/annotate-date-in-the-viewport-of-the-3d-visualization/4683)

<div class="topic-metadata">

**Author:** [@savalma](https://discourse.paraview.org/u/savalma)\
**Replies:** 5\
**Last updated:** [June 26, 2020, 3:21am UTC](https://discourse.paraview.org/t/annotate-date-in-the-viewport-of-the-3d-visualization/4683 "2020-06-26T03:21:15Z")

</div>

Hi Paraview Member, I have the dates for every timestep as a string in a file and I want to link this file to create an annotation where I can see the date instead of the time step. I looked at other sources where this …

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## [Unsteady Plot3d File](https://discourse.paraview.org/t/unsteady-plot3d-file/3686)

<div class="topic-metadata">

**Author:** [@MAGAN\_SINGH](https://discourse.paraview.org/u/MAGAN_SINGH)\
**Replies:** 3\
**Last updated:** [March 2, 2020, 2:37am UTC](https://discourse.paraview.org/t/unsteady-plot3d-file/3686 "2020-03-02T02:37:35Z")

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Steady plot3d binary files are easily readable in Paraview, But when I load 2D unsteady binary grid file and solution plot3d file (solution output at all time steps is written in a single solution file), It doesn’t load …

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## [Normalize Transfer Function based on Data Resolution](https://discourse.paraview.org/t/normalize-transfer-function-based-on-data-resolution/10237)

<div class="topic-metadata">

**Author:** [@Dosmi](https://discourse.paraview.org/u/Dosmi)\
**Replies:** 6\
**Last updated:** [September 2, 2022, 5:10pm UTC](https://discourse.paraview.org/t/normalize-transfer-function-based-on-data-resolution/10237 "2022-09-02T17:10:14Z")

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Simple question - I have data 128x128x128, use a combination of 50% opaque points, fine-tune to what I like, leaving sections of it semi-transparent. Then, loading 1024x1024x1024 data with same (exported) transfer functi…

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## [Is there a way to fix the number of labels on the Axes Grid?](https://discourse.paraview.org/t/is-there-a-way-to-fix-the-number-of-labels-on-the-axes-grid/12142)

<div class="topic-metadata">

**Author:** [@mclarsen](https://discourse.paraview.org/u/mclarsen)\
**Replies:** 4\
**Last updated:** [May 24, 2023, 10:46pm UTC](https://discourse.paraview.org/t/is-there-a-way-to-fix-the-number-of-labels-on-the-axes-grid/12142 "2023-05-24T22:46:26Z")

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We are running into a performance issue displaying the axes grids. The default function increases the number of labels depending on the zoom factor. I assume the code is trying to keep the labels equally spaced in screen…

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## [Post proccesing troubles histogram/distribution function.](https://discourse.paraview.org/t/post-proccesing-troubles-histogram-distribution-function/7444)

<div class="topic-metadata">

**Author:** [@peppsn](https://discourse.paraview.org/u/peppsn)\
**Replies:** 4\
**Last updated:** [June 21, 2021, 5:18pm UTC](https://discourse.paraview.org/t/post-proccesing-troubles-histogram-distribution-function/7444 "2021-06-21T17:18:12Z")

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Hi! Im a new paraview user and could use some help if there’s anyone with experience and some left over time out there. I’ve done a simulation in Converge CFD (h5-files) and trying to show a distribution curve at differ…

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## [Renderviews in pvbatch animation script](https://discourse.paraview.org/t/renderviews-in-pvbatch-animation-script/4084)

<div class="topic-metadata">

**Author:** [@wsherman](https://discourse.paraview.org/u/wsherman)\
**Replies:** 4\
**Last updated:** [April 16, 2020, 3:12am UTC](https://discourse.paraview.org/t/renderviews-in-pvbatch-animation-script/4084 "2020-04-16T03:12:42Z")

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Hello all, I have a couple of questions on interfacing with renderviews through the Python interface. I have a pvbatch script that I use to generate animation frames, and typically I’ve just had a single renderview in …

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## [Using Paraview.simple externally Numpy error](https://discourse.paraview.org/t/using-paraview-simple-externally-numpy-error/5630)

<div class="topic-metadata">

**Author:** [@Alexandros](https://discourse.paraview.org/u/Alexandros)\
**Replies:** 2\
**Last updated:** [May 17, 2021, 8:13am UTC](https://discourse.paraview.org/t/using-paraview-simple-externally-numpy-error/5630 "2021-05-17T08:13:31Z")

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Dear all, I need to run paraview.simple externaly on my python distribution for extracting several results. I followed the instructions found online and added to pythonpath the following: /home/alexandrosstathas/PlotEn…

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## [How to display the time tracker in a chart with a custom variable as X array](https://discourse.paraview.org/t/how-to-display-the-time-tracker-in-a-chart-with-a-custom-variable-as-x-array/4484)

<div class="topic-metadata">

**Author:** [@ANON1](https://discourse.paraview.org/u/ANON1)\
**Replies:** 2\
**Last updated:** [June 3, 2020, 12:34pm UTC](https://discourse.paraview.org/t/how-to-display-the-time-tracker-in-a-chart-with-a-custom-variable-as-x-array/4484 "2020-06-03T12:34:18Z")

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Hello, I am plotting some data in chart over time. If I use the Time as the X array name, the time marker can be shown in the chart. However, If I change the X array name to another variable, in my example, avg(alpha) I…

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## [Provide additional binaries for Windows with Python 3 support](https://discourse.paraview.org/t/provide-additional-binaries-for-windows-with-python-3-support/2270)

<div class="topic-metadata">

**Author:** [@godaygo](https://discourse.paraview.org/u/godaygo)\
**Replies:** 5\
**Last updated:** [July 22, 2019, 7:42pm UTC](https://discourse.paraview.org/t/provide-additional-binaries-for-windows-with-python-3-support/2270 "2019-07-22T19:42:40Z")

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I apologize :frowning\_face:, I did not know that the topic will be removed if I delete and then reassign my account. So I will repeat the question here: Do you plan to provide ParaView binaries for Windows with Python 3 …

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## [Reading in Velocity Data in a Legacy VTK File](https://discourse.paraview.org/t/reading-in-velocity-data-in-a-legacy-vtk-file/2202)

<div class="topic-metadata">

**Author:** [@Raychel\_Bahnick](https://discourse.paraview.org/u/Raychel_Bahnick)\
**Replies:** 4\
**Last updated:** [December 30, 2024, 2:51pm UTC](https://discourse.paraview.org/t/reading-in-velocity-data-in-a-legacy-vtk-file/2202 "2024-12-30T14:51:52Z")

</div>

I am opening legacy vtk files into Paraview. There are x, y, and z coordinates and I am interested in attaching a x-velocity value to each of the points. How do I incorporate this velocity data into my vtk files in such …

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## [paraview build using opengl2](https://discourse.paraview.org/t/paraview-build-using-opengl2/363)

<div class="topic-metadata">

**Author:** [@kmilo9999](https://discourse.paraview.org/u/kmilo9999)\
**Replies:** 2\
**Last updated:** [July 27, 2018, 3:24pm UTC](https://discourse.paraview.org/t/paraview-build-using-opengl2/363 "2018-07-27T15:24:32Z")

</div>

Hi. I built paraview 5.1.0 in linux swtiching the variable VTK\_RENDERING\_BACKEND to OpenGL2. When I started paraview an error message pop up : “VTK is designed to work with OpenGL version 3.2 but appears it has been g…

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