# Top

**URL:** https://discourse.paraview.org/top.md?page=147&period=all

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

**Page:** 148

---

## [Trying to extract upper and lower surface Cp values from a slice](https://discourse.paraview.org/t/trying-to-extract-upper-and-lower-surface-cp-values-from-a-slice/7085)

<div class="topic-metadata">

**Author:** [@aarafat](https://discourse.paraview.org/u/aarafat)\
**Replies:** 0\
**Last updated:** [April 27, 2021, 6:15pm UTC](https://discourse.paraview.org/t/trying-to-extract-upper-and-lower-surface-cp-values-from-a-slice/7085 "2021-04-27T18:15:20Z")

</div>

Hi, I am working on creating a plot of Cp against x, I have extracted the surface, put in the equation of Cp and sliced it, but I am not really sure how to differentiate between the upper and lower surface values. Th…

---

## [Making interactive windows and selecting data using Python](https://discourse.paraview.org/t/making-interactive-windows-and-selecting-data-using-python/5481)

<div class="topic-metadata">

**Author:** [@Amin\_Seifinia](https://discourse.paraview.org/u/Amin_Seifinia)\
**Replies:** 0\
**Last updated:** [October 3, 2020, 9:18am UTC](https://discourse.paraview.org/t/making-interactive-windows-and-selecting-data-using-python/5481 "2020-10-03T09:18:14Z")

</div>

Hello, thank you in advance for viewing this thread. I need to write a program to use the Python interface for Paraview to display STL models and select certain faces on it. I have learned how to import my STL model usi…

---

## [Screenshots for 3 Renderviews not saved to scale](https://discourse.paraview.org/t/screenshots-for-3-renderviews-not-saved-to-scale/4396)

<div class="topic-metadata">

**Author:** [@yamartinezgomez](https://discourse.paraview.org/u/yamartinezgomez)\
**Replies:** 0\
**Last updated:** [May 23, 2020, 2:15pm UTC](https://discourse.paraview.org/t/screenshots-for-3-renderviews-not-saved-to-scale/4396 "2020-05-23T14:15:55Z")

</div>

Hello, I want to capture a single screenshot for a total of 3 renderviews in ParaView. I am currently using the 5.8.0 ParaView Version on a Mac computer. Once I take the screenshot and save it with some predetermined s…

---

## [Difference in resampling when done in script vs. GUI](https://discourse.paraview.org/t/difference-in-resampling-when-done-in-script-vs-gui/17216)

<div class="topic-metadata">

**Author:** [@elynch](https://discourse.paraview.org/u/elynch)\
**Replies:** 7\
**Last updated:** [October 2, 2025, 2:43pm UTC](https://discourse.paraview.org/t/difference-in-resampling-when-done-in-script-vs-gui/17216 "2025-10-02T14:43:58Z")

</div>

The dataset linked below has a state file in which I resample one dataset with another. It also includes a pvpython script that I expect to do the same thing but doesn’t. In the plot below, you can see that the script …

---

## [Sliced/Disapearing View when stepping through the timesteps](https://discourse.paraview.org/t/sliced-disapearing-view-when-stepping-through-the-timesteps/15505)

<div class="topic-metadata">

**Author:** [@abaumann](https://discourse.paraview.org/u/abaumann)\
**Replies:** 2\
**Last updated:** [October 8, 2024, 6:35am UTC](https://discourse.paraview.org/t/sliced-disapearing-view-when-stepping-through-the-timesteps/15505 "2024-10-08T06:35:41Z")

</div>

When stepping between different time steps, the data disappears like it is sliced and the slicing plane is moved backwards. See attached gif for visualization. A couple of time steps later, the slicing moves back, and th…

---

## [No cell data from vtkThreshold in Python plugin (possible dup)](https://discourse.paraview.org/t/no-cell-data-from-vtkthreshold-in-python-plugin-possible-dup/4168)

<div class="topic-metadata">

**Author:** [@wsherman](https://discourse.paraview.org/u/wsherman)\
**Replies:** 0\
**Last updated:** [April 24, 2020, 6:05am UTC](https://discourse.paraview.org/t/no-cell-data-from-vtkthreshold-in-python-plugin-possible-dup/4168 "2020-04-24T06:05:36Z")

</div>

\[I think I just deleted my post, so if not, this will be a duplicate posting. (I’m having quite a bit of difficulty with Discourse this evening – twice it thought I wanted to “abandon” my posting, and then lost the draf…

---

## [Angular position of a structure](https://discourse.paraview.org/t/angular-position-of-a-structure/3873)

<div class="topic-metadata">

**Author:** [@nada](https://discourse.paraview.org/u/nada)\
**Replies:** 0\
**Last updated:** [March 24, 2020, 12:59pm UTC](https://discourse.paraview.org/t/angular-position-of-a-structure/3873 "2020-03-24T12:59:34Z")

</div>

Hello, I am trying to visualize the angular position ( or angular velocity ) of a spinning structure ( STL file ) , how could I do that ? . thanks

---

## [pvpython script - save screenshot not rendering properly.](https://discourse.paraview.org/t/pvpython-script-save-screenshot-not-rendering-properly/14669)

<div class="topic-metadata">

**Author:** [@flynn\_h](https://discourse.paraview.org/u/flynn_h)\
**Replies:** 3\
**Last updated:** [May 26, 2024, 11:44pm UTC](https://discourse.paraview.org/t/pvpython-script-save-screenshot-not-rendering-properly/14669 "2024-05-26T23:44:35Z")

</div>

Hi all, i’m attempting to write a batch script so I can save screenshots of flowfields generated on a cluster computer without access to a gui. I’ve started simply with a trace for paraview 5.6.0, however when I go to r…

---

## [Call an existing Source from another Proxy](https://discourse.paraview.org/t/call-an-existing-source-from-another-proxy/9525)

<div class="topic-metadata">

**Author:** [@MiguelAngelAGUIRRE](https://discourse.paraview.org/u/MiguelAngelAGUIRRE)\
**Replies:** 0\
**Last updated:** [April 27, 2022, 2:49pm UTC](https://discourse.paraview.org/t/call-an-existing-source-from-another-proxy/9525 "2022-04-27T14:49:41Z")

</div>

Hello, I have a XML that generates 2 sources with vtkPythonProgrammableFilter class (The sources are named “SOURCE\_1” and “SOURCE\_2”). Now, I want to call either SOURCE\_1 or SOURCE\_2 in another Proxy (Named “SOURCE\_MAIN…

---

## [CreateExtractor CinemaVolumetricPNG crash](https://discourse.paraview.org/t/createextractor-cinemavolumetricpng-crash/8489)

<div class="topic-metadata">

**Author:** [@jfavre](https://discourse.paraview.org/u/jfavre)\
**Replies:** 0\
**Last updated:** [November 25, 2021, 1:24pm UTC](https://discourse.paraview.org/t/createextractor-cinemavolumetricpng-crash/8489 "2021-11-25T13:24:06Z")

</div>

I am trying to create a cinema database with an in-situ app using PV5.10.0-RC2 but it keeps crashing. Other extractor (such as data extractor or image extractor) work very well. I have tried the same with the provided e…

---

## [read sparse array in paraview](https://discourse.paraview.org/t/read-sparse-array-in-paraview/13687)

<div class="topic-metadata">

**Author:** [@AtzoriMarco](https://discourse.paraview.org/u/AtzoriMarco)\
**Replies:** 2\
**Last updated:** [January 15, 2024, 10:10am UTC](https://discourse.paraview.org/t/read-sparse-array-in-paraview/13687 "2024-01-15T10:10:13Z")

</div>

Dear all, I am trying to understand if Paraview/VTK has a convenient way of representing data organized as sparse arrays. I would like to save results of a 3D simulation organized in a Cartesian grid which is mainly emp…

---

## [Issue with Reading and Storing Data from AMR Simulation Files](https://discourse.paraview.org/t/issue-with-reading-and-storing-data-from-amr-simulation-files/16082)

<div class="topic-metadata">

**Author:** [@bazharz](https://discourse.paraview.org/u/bazharz)\
**Replies:** 7\
**Last updated:** [February 19, 2025, 10:13am UTC](https://discourse.paraview.org/t/issue-with-reading-and-storing-data-from-amr-simulation-files/16082 "2025-02-19T10:13:26Z")

</div>

Hello, save\_data\_paraview.py (2.9 KB) I am writing to you because I have an issue with reading simulation files containing AMR (Adaptive Mesh Refinement). I have a series of files representing each stored time step fo…

---

## [Need help to compute the difference between two solution on the same mesh using append attribute](https://discourse.paraview.org/t/need-help-to-compute-the-difference-between-two-solution-on-the-same-mesh-using-append-attribute/13908)

<div class="topic-metadata">

**Author:** [@Stayal](https://discourse.paraview.org/u/Stayal)\
**Replies:** 1\
**Last updated:** [February 12, 2024, 9:34am UTC](https://discourse.paraview.org/t/need-help-to-compute-the-difference-between-two-solution-on-the-same-mesh-using-append-attribute/13908 "2024-02-12T09:34:14Z")

</div>

Hello velocity\_noslip.pvd (177 Bytes) velocity\_slip.pvd (175 Bytes) Attached are two files: one with a slip solution and the other with a no-slip solution, both on the same mesh. I want to compute the difference betwe…

---

## [Issue with retrieving X-Coordinates from Contour Source using a Python Script](https://discourse.paraview.org/t/issue-with-retrieving-x-coordinates-from-contour-source-using-a-python-script/13150)

<div class="topic-metadata">

**Author:** [@flymouche](https://discourse.paraview.org/u/flymouche)\
**Replies:** 1\
**Last updated:** [October 31, 2023, 9:04pm UTC](https://discourse.paraview.org/t/issue-with-retrieving-x-coordinates-from-contour-source-using-a-python-script/13150 "2023-10-31T21:04:06Z")

</div>

Hello, I am encoutering issues with retrieving the X coordinates from a Contour Source. I have realized a Contour source using the following commands : “contour1 = Contour(registrationName=‘Contour1’, Input=my\_input) c…

---

## [Crash in setting up .vtu file in paraview](https://discourse.paraview.org/t/crash-in-setting-up-vtu-file-in-paraview/12536)

<div class="topic-metadata">

**Author:** [@Elisan\_Magalhaes](https://discourse.paraview.org/u/Elisan_Magalhaes)\
**Replies:** 1\
**Last updated:** [July 19, 2023, 12:30am UTC](https://discourse.paraview.org/t/crash-in-setting-up-vtu-file-in-paraview/12536 "2023-07-19T00:30:04Z")

</div>

output.vtu (12.5 KB) I’m having trouble reading this file in Paraview. Paraview crashes when I try to use the Glyph function on it. I’ve noticed that if I remove (TimeValues = “0”) from line 3 and (TimeStep=“0”) from li…

---

## [What is needed to make plugin settings persistent?](https://discourse.paraview.org/t/what-is-needed-to-make-plugin-settings-persistent/10759)

<div class="topic-metadata">

**Author:** [@johnt](https://discourse.paraview.org/u/johnt)\
**Replies:** 1\
**Last updated:** [November 16, 2022, 8:44am UTC](https://discourse.paraview.org/t/what-is-needed-to-make-plugin-settings-persistent/10759 "2022-11-16T08:44:12Z")

</div>

I have a small plugin that needs one persistent setting (string). I can add an xml config file to my build (via SERVER\_MANAGER\_XML) and the new setting appears in the pqSettingsDialog, and I can get/set its value via vt…

---

## [How to get data CVS from a programmable source?](https://discourse.paraview.org/t/how-to-get-data-cvs-from-a-programmable-source/8103)

<div class="topic-metadata">

**Author:** [@joaocqmiranda](https://discourse.paraview.org/u/joaocqmiranda)\
**Replies:** 1\
**Last updated:** [October 5, 2021, 1:32pm UTC](https://discourse.paraview.org/t/how-to-get-data-cvs-from-a-programmable-source/8103 "2021-10-05T13:32:27Z")

</div>

I made a reader of CVS files in programmable source, And it is working. But now i want to select that data to use in python animation and python shell. And select specific row or column.

---

## [Apply is not active](https://discourse.paraview.org/t/apply-is-not-active/14024)

<div class="topic-metadata">

**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 5\
**Last updated:** [February 26, 2024, 3:14pm UTC](https://discourse.paraview.org/t/apply-is-not-active/14024 "2024-02-26T15:14:33Z")

</div>

Hello dear Paraview developers! I have a filter with both a server side and a custom widget. Custom widget uses client-server wrappings to call a widget’s function which itself calls python to select some points. Becau…

---

## [can not plot Dualsphysics output over line](https://discourse.paraview.org/t/can-not-plot-dualsphysics-output-over-line/1758)

<div class="topic-metadata">

**Author:** [@soroushkouhi](https://discourse.paraview.org/u/soroushkouhi)\
**Replies:** 0\
**Last updated:** [May 3, 2019, 4:56pm UTC](https://discourse.paraview.org/t/can-not-plot-dualsphysics-output-over-line/1758 "2019-05-03T16:56:14Z")

</div>

Hi All, I am trying to plot different output variables of Dualsphysics over a line, but Paraview has error doing that. Therefore, I am interpolating those output on a plane, then plot from the new plane over the line! H…

---

## [compiling Paraview5.2 in Mac OS](https://discourse.paraview.org/t/compiling-paraview5-2-in-mac-os/416)

<div class="topic-metadata">

**Author:** [@segalemb](https://discourse.paraview.org/u/segalemb)\
**Replies:** 0\
**Last updated:** [August 10, 2018, 7:38pm UTC](https://discourse.paraview.org/t/compiling-paraview5-2-in-mac-os/416 "2018-08-10T19:38:01Z")

</div>

I trying to install Paraview 5.2 in a Mac OS 10.13.6. But, when compiling the files, by the command make, I obtain the following error: /Users/sergio/ParaView-v5.2.0/VTK/ThirdParty/xdmf2/vtkxdmf2/libsrc/XdmfDsmComm.cxx…

---

## [Paraview doesnt recognize multiblocks in this .cgns file but it's okay in FLUENT](https://discourse.paraview.org/t/paraview-doesnt-recognize-multiblocks-in-this-cgns-file-but-its-okay-in-fluent/12054)

<div class="topic-metadata">

**Author:** [@John\_Hayward](https://discourse.paraview.org/u/John_Hayward)\
**Replies:** 1\
**Last updated:** [May 10, 2023, 11:18am UTC](https://discourse.paraview.org/t/paraview-doesnt-recognize-multiblocks-in-this-cgns-file-but-its-okay-in-fluent/12054 "2023-05-10T11:18:07Z")

</div>

https://drive.google.com/drive/folders/11xeWaSKimPunvA7-1P8NH04LpImLuQC-?usp=share\_link Why ParaView is not recognizing multiblock in this .cgns file? If someone could help it would be great

---

## [How to create a moving dataset for sampling ?](https://discourse.paraview.org/t/how-to-create-a-moving-dataset-for-sampling/11410)

<div class="topic-metadata">

**Author:** [@s1291](https://discourse.paraview.org/u/s1291)\
**Replies:** 1\
**Last updated:** [February 15, 2023, 1:50am UTC](https://discourse.paraview.org/t/how-to-create-a-moving-dataset-for-sampling/11410 "2023-02-15T01:50:05Z")

</div>

Hello, Is it possible within Paraview to create a moving dataset that follows a moving object? A little bit of context: I need to post-process a flow simulation around a moving airfoil. I have to use a dataset (such a…

---

## [Paraview plot vectorial images in 2D plane](https://discourse.paraview.org/t/paraview-plot-vectorial-images-in-2d-plane/9802)

<div class="topic-metadata">

**Author:** [@Trailer1](https://discourse.paraview.org/u/Trailer1)\
**Replies:** 1\
**Last updated:** [June 14, 2022, 1:01pm UTC](https://discourse.paraview.org/t/paraview-plot-vectorial-images-in-2d-plane/9802 "2022-06-14T13:01:58Z")

</div>

Hello to all, I have a table I have made in powerpoint with some case conditions and annotations. I exported the table into .pdf and with inkscape to .svg/(some other vectorial format). I would like to know if paravie…

---

## [Issue with python plugin when loading a single time step](https://discourse.paraview.org/t/issue-with-python-plugin-when-loading-a-single-time-step/15338)

<div class="topic-metadata">

**Author:** [@SBl](https://discourse.paraview.org/u/SBl)\
**Replies:** 6\
**Last updated:** [September 4, 2024, 7:43am UTC](https://discourse.paraview.org/t/issue-with-python-plugin-when-loading-a-single-time-step/15338 "2024-09-04T07:43:45Z")

</div>

I am writing a python plugin in which I need to load time-dependent data. I noticed an issue when I pass a time step list of size 1. Instead of showing just a single time step, Paraview shows the list with the following …

---

## [vtkHardwareSelector - without GPU?](https://discourse.paraview.org/t/vtkhardwareselector-without-gpu/17405)

<div class="topic-metadata">

**Author:** [@JT3DAI](https://discourse.paraview.org/u/JT3DAI)\
**Replies:** 0\
**Last updated:** [January 21, 2026, 6:38pm UTC](https://discourse.paraview.org/t/vtkhardwareselector-without-gpu/17405 "2026-01-21T18:38:54Z")

</div>

Hi guys, I have the function below that returns all visible points in the renderer from a mesh obj. Its fast and it is accurate but my understanding is that it requires a GPU. This has been fine as locally there is a GP…

---

## [Sparse CSV - Delaunay3D filter Single to Multi threaded](https://discourse.paraview.org/t/sparse-csv-delaunay3d-filter-single-to-multi-threaded/16061)

<div class="topic-metadata">

**Author:** [@ParticleTruthSeeker](https://discourse.paraview.org/u/ParticleTruthSeeker)\
**Replies:** 8\
**Last updated:** [January 30, 2025, 3:21am UTC](https://discourse.paraview.org/t/sparse-csv-delaunay3d-filter-single-to-multi-threaded/16061 "2025-01-30T03:21:09Z")

</div>

I happen to be using this filter alot and it seems to be single threaded. Is there a way to recompile paraview and utilise multithreading for this? I am also in need to use this filter with a sparse csv which I would li…

---

## [Transform property 'RotateAroundOriginTransform' not working in python](https://discourse.paraview.org/t/transform-property-rotatearoundorigintransform-not-working-in-python/8798)

<div class="topic-metadata">

**Author:** [@rasunag27](https://discourse.paraview.org/u/rasunag27)\
**Replies:** 0\
**Last updated:** [January 19, 2022, 4:02pm UTC](https://discourse.paraview.org/t/transform-property-rotatearoundorigintransform-not-working-in-python/8798 "2022-01-19T16:02:21Z")

</div>

Hi, I have an stl file which needs to be rotated about an axis with origin. For this, based on question asked previously, I used pv nightly version. From paraview, I can do it correctly, but I am facing a problem throu…

---

## [pvserver crash with multiple cpu](https://discourse.paraview.org/t/pvserver-crash-with-multiple-cpu/4555)

<div class="topic-metadata">

**Author:** [@sharon](https://discourse.paraview.org/u/sharon)\
**Replies:** 0\
**Last updated:** [June 10, 2020, 1:57pm UTC](https://discourse.paraview.org/t/pvserver-crash-with-multiple-cpu/4555 "2020-06-10T13:57:51Z")

</div>

Dear Experts, when i run pvserver with one cpu, it is OK, but when i run pvserver with more than one cpu, it will crash after loaded data to render. i didnt build pvserver with osmesa, when client connect to server, i…

---

## [Improve "Drop down list with values from input arrays" to keeps latest successfully selected array name](https://discourse.paraview.org/t/improve-drop-down-list-with-values-from-input-arrays-to-keeps-latest-successfully-selected-array-name/422)

<div class="topic-metadata">

**Author:** [@JonathanBorduas](https://discourse.paraview.org/u/JonathanBorduas)\
**Replies:** 0\
**Last updated:** [August 13, 2018, 5:44pm UTC](https://discourse.paraview.org/t/improve-drop-down-list-with-values-from-input-arrays-to-keeps-latest-successfully-selected-array-name/422 "2018-08-13T17:44:43Z")

</div>

Hi Community, I just added a new issue on gitlab regarding “Drop down list with values from input arrays”. I think it would be incredibly helpful to keep in memory the latest successfully selected array name instead o…

---

## [Export surface LIC video](https://discourse.paraview.org/t/export-surface-lic-video/12125)

<div class="topic-metadata">

**Author:** [@Alberto\_Lolli](https://discourse.paraview.org/u/Alberto_Lolli)\
**Replies:** 1\
**Last updated:** [May 22, 2023, 7:27am UTC](https://discourse.paraview.org/t/export-surface-lic-video/12125 "2023-05-22T07:27:44Z")

</div>

Hi community, I’ve tried to export results of a transient simulation (vector field visualized with LIC surface) with several video format but none works good. I’ve tried to export the surface instead of LIC and no prob…

---

## [use vtkPStreamTracer demo](https://discourse.paraview.org/t/use-vtkpstreamtracer-demo/13832)

<div class="topic-metadata">

**Author:** [@Sun](https://discourse.paraview.org/u/Sun)\
**Replies:** 3\
**Last updated:** [February 20, 2024, 9:42am UTC](https://discourse.paraview.org/t/use-vtkpstreamtracer-demo/13832 "2024-02-20T09:42:00Z")

</div>

Dear Sir Hello, I saw that you submitted a class called vtkPStreamTracer on GitHub, which is about streamline parallel computing. I would like to know how it supports streamline parallel computing on multiple machines a…

---

## [point gaussian](https://discourse.paraview.org/t/point-gaussian/12340)

<div class="topic-metadata">

**Author:** [@ejlee](https://discourse.paraview.org/u/ejlee)\
**Replies:** 0\
**Last updated:** [June 20, 2023, 6:26am UTC](https://discourse.paraview.org/t/point-gaussian/12340 "2023-06-20T06:26:56Z")

</div>

Is there any explanation for point gaussian? I wonder if making the point Gaussian radius equal to the particle size makes it look the same as the analytical particle size.

---

## [1st order variables on 2nd order mesh](https://discourse.paraview.org/t/1st-order-variables-on-2nd-order-mesh/10148)

<div class="topic-metadata">

**Author:** [@joe61vette](https://discourse.paraview.org/u/joe61vette)\
**Replies:** 0\
**Last updated:** [August 15, 2022, 2:12pm UTC](https://discourse.paraview.org/t/1st-order-variables-on-2nd-order-mesh/10148 "2022-08-15T14:12:12Z")

</div>

Hi: when I plot 1st order variables on a 2nd order mesh I get unphysical values at the locations of the 2nd order nodes. Is there a setting somewhere that will cause these values to be interpolated? I am uploading a s…

---

## [Connecting to Catalyst running inside a Docker container via Desktop Paraview](https://discourse.paraview.org/t/connecting-to-catalyst-running-inside-a-docker-container-via-desktop-paraview/8451)

<div class="topic-metadata">

**Author:** [@FeStein](https://discourse.paraview.org/u/FeStein)\
**Replies:** 0\
**Last updated:** [November 22, 2021, 2:36pm UTC](https://discourse.paraview.org/t/connecting-to-catalyst-running-inside-a-docker-container-via-desktop-paraview/8451 "2021-11-22T14:36:36Z")

</div>

Hello, essentially I try to do an in-situ visualization of a fenics/dolfin simulation. At the moment I try to work on getting the pipeline correct in order to be able to simulate inside a docker container (later on sing…

---

## [data loss after running a script](https://discourse.paraview.org/t/data-loss-after-running-a-script/14926)

<div class="topic-metadata">

**Author:** [@Tang](https://discourse.paraview.org/u/Tang)\
**Replies:** 6\
**Last updated:** [June 28, 2024, 6:55am UTC](https://discourse.paraview.org/t/data-loss-after-running-a-script/14926 "2024-06-28T06:55:37Z")

</div>

Hi all, I recorded a script in ParaView as shown in Figure 1, and then used the script in a new interface to visualize the data. However, I found that there is some missing data in the plot. Does anyone know what mi…

---

## [How can I render an X-ray image from a volume data?](https://discourse.paraview.org/t/how-can-i-render-an-x-ray-image-from-a-volume-data/13707)

<div class="topic-metadata">

**Author:** [@miles\_nanshan](https://discourse.paraview.org/u/miles_nanshan)\
**Replies:** 1\
**Last updated:** [January 16, 2024, 8:12am UTC](https://discourse.paraview.org/t/how-can-i-render-an-x-ray-image-from-a-volume-data/13707 "2024-01-16T08:12:55Z")

</div>

Say that I have a 3D VTU data consisting of values between 0 and 1. My goal is to render it as X-ray imaging, which means the lower the value, the more transparent the corresponding part should be. For now, after import…

---

## [Remove vertices not used in unstructured grid](https://discourse.paraview.org/t/remove-vertices-not-used-in-unstructured-grid/11175)

<div class="topic-metadata">

**Author:** [@Juan\_Jose\_Casafranca](https://discourse.paraview.org/u/Juan_Jose_Casafranca)\
**Replies:** 1\
**Last updated:** [January 17, 2023, 9:18am UTC](https://discourse.paraview.org/t/remove-vertices-not-used-in-unstructured-grid/11175 "2023-01-17T09:18:21Z")

</div>

I have a vtkUnstructuredGrid which has vertices not referenced by any cell. This happens because I have a big list of points which are used in several vtkUnstructedGrid. Each grid has cells that reference only a subset o…

---

## [Nested animations](https://discourse.paraview.org/t/nested-animations/11062)

<div class="topic-metadata">

**Author:** [@Juan\_Jose\_Casafranca](https://discourse.paraview.org/u/Juan_Jose_Casafranca)\
**Replies:** 1\
**Last updated:** [December 22, 2022, 1:54pm UTC](https://discourse.paraview.org/t/nested-animations/11062 "2022-12-22T13:54:51Z")

</div>

I am using Paraview to analyse and debug some simulation code I have written. During the simulation, I update the state of some triangular meshes several times, until the simulation converges. Once the simulation has con…

---

## [Maximum number of labels -- escalate to top management](https://discourse.paraview.org/t/maximum-number-of-labels-escalate-to-top-management/10579)

<div class="topic-metadata">

**Author:** [@nadeem](https://discourse.paraview.org/u/nadeem)\
**Replies:** 1\
**Last updated:** [October 24, 2022, 2:20am UTC](https://discourse.paraview.org/t/maximum-number-of-labels-escalate-to-top-management/10579 "2022-10-24T02:20:48Z")

</div>

My request of help on the topic (below) has no replies, so I assume that this is a very difficult problem requiring top expert help. The topic I posted was: Maximum number of labels – for Lagrangian particle tracking I …

---

## [Pycurl or Requests in Paraview Python](https://discourse.paraview.org/t/pycurl-or-requests-in-paraview-python/7950)

<div class="topic-metadata">

**Author:** [@Luis\_Carlos\_Carneiro](https://discourse.paraview.org/u/Luis_Carlos_Carneiro)\
**Replies:** 1\
**Last updated:** [September 7, 2021, 12:41pm UTC](https://discourse.paraview.org/t/pycurl-or-requests-in-paraview-python/7950 "2021-09-07T12:41:38Z")

</div>

Dear All, How to make Curl Requests in Paraview Python? Seems that Paraview Python does not support Pycurl and Requests. Thanks, Luís Gonçalves

---

## [Programmable Filter computation](https://discourse.paraview.org/t/programmable-filter-computation/7723)

<div class="topic-metadata">

**Author:** [@gizem](https://discourse.paraview.org/u/gizem)\
**Replies:** 1\
**Last updated:** [July 29, 2021, 2:35pm UTC](https://discourse.paraview.org/t/programmable-filter-computation/7723 "2021-07-29T14:35:04Z")

</div>

Hello, I’d like to know how the programmable filter computes- does it calculate every timesteps whenever I press the apply button, or does it calculate each timestep individually when I press the Play button? Thank you…

---

## [Problem with Surface LIC and UseLight = 0 =\> wrong image](https://discourse.paraview.org/t/problem-with-surface-lic-and-uselight-0-wrong-image/14255)

<div class="topic-metadata">

**Author:** [@Frank](https://discourse.paraview.org/u/Frank)\
**Replies:** 2\
**Last updated:** [March 25, 2024, 12:02pm UTC](https://discourse.paraview.org/t/problem-with-surface-lic-and-uselight-0-wrong-image/14255 "2024-03-25T12:02:31Z")

</div>

I’m trying to generate an image with Surface LIC on a slice. When I use renderView1.UseLight = 0 the Surface LIC is incorrect. with renderView1.UseLight = 1 everything is fine. Correct Image using UseLight = 1 Wro…

---

## [ParaViewWeb: clients without linked views](https://discourse.paraview.org/t/paraviewweb-clients-without-linked-views/13788)

<div class="topic-metadata">

**Author:** [@utkarsh.ayachit](https://discourse.paraview.org/u/utkarsh.ayachit)\
**Replies:** 2\
**Last updated:** [January 29, 2024, 11:53am UTC](https://discourse.paraview.org/t/paraviewweb-clients-without-linked-views/13788 "2024-01-29T11:53:33Z")

</div>

I have an interesting problem: I want to use a single ParaViewWeb (or trame) server to render a canned visualization. However, for every client/browser connected, I do not want to link the view i.e. each client can view …

---

## [Multimesh protocol show nothing in ParaView](https://discourse.paraview.org/t/multimesh-protocol-show-nothing-in-paraview/13686)

<div class="topic-metadata">

**Author:** [@Juan\_Jose\_Casafranca](https://discourse.paraview.org/u/Juan_Jose_Casafranca)\
**Replies:** 2\
**Last updated:** [January 15, 2024, 2:35pm UTC](https://discourse.paraview.org/t/multimesh-protocol-show-nothing-in-paraview/13686 "2024-01-15T14:35:41Z")

</div>

I am trying to show my simulation in ParaView. I am using the multimesh protocol as my data is organized hierarchically. However, I can’t see anything ParaView. The dataset I received is completely empty. My conduit nod…

---

## [View is blocked](https://discourse.paraview.org/t/view-is-blocked/14204)

<div class="topic-metadata">

**Author:** [@Michael\_Li](https://discourse.paraview.org/u/Michael_Li)\
**Replies:** 4\
**Last updated:** [March 19, 2024, 8:19pm UTC](https://discourse.paraview.org/t/view-is-blocked/14204 "2024-03-19T20:19:47Z")

</div>

I use a comparativeView to display the results at 6 different time steps. The first and the last show normally, but as can be seen in the figure enclosed, some portion of the 4 middle views is blocked with a write box…

---

## [ParaView crash when opening XML based vtk file](https://discourse.paraview.org/t/paraview-crash-when-opening-xml-based-vtk-file/15434)

<div class="topic-metadata">

**Author:** [@jeff21](https://discourse.paraview.org/u/jeff21)\
**Replies:** 5\
**Last updated:** [September 26, 2024, 9:35am UTC](https://discourse.paraview.org/t/paraview-crash-when-opening-xml-based-vtk-file/15434 "2024-09-26T09:35:10Z")

</div>

Hi all I am having an issue when opening a .vtk file containing some thermal data from a simulator tool I built. The output .vtk file is generated from a library function (dolfinx.io VTKFile) and when opening it in Note…

---

## [InsideOut and plot ?](https://discourse.paraview.org/t/insideout-and-plot/14041)

<div class="topic-metadata">

**Author:** [@sheth](https://discourse.paraview.org/u/sheth)\
**Replies:** 3\
**Last updated:** [February 28, 2024, 4:27pm UTC](https://discourse.paraview.org/t/insideout-and-plot/14041 "2024-02-28T16:27:57Z")

</div>

@mwestphal sir - What does this option do in a cylindrical slice? how do we get binned data on a plot?

---

## [How to create paraview qml application](https://discourse.paraview.org/t/how-to-create-paraview-qml-application/9257)

<div class="topic-metadata">

**Author:** [@sharon](https://discourse.paraview.org/u/sharon)\
**Replies:** 0\
**Last updated:** [March 23, 2022, 12:05am UTC](https://discourse.paraview.org/t/how-to-create-paraview-qml-application/9257 "2022-03-23T00:05:58Z")

</div>

paraview application is built by Qt Widget, when used on touch screen where there is no mouse, then middle button, right button is not usable, but multipoint touch is required how to do it? can we make a qml application…

---

## [Add an input file format tutorial or guide for users in Paraview website](https://discourse.paraview.org/t/add-an-input-file-format-tutorial-or-guide-for-users-in-paraview-website/14344)

<div class="topic-metadata">

**Author:** [@George\_Smith](https://discourse.paraview.org/u/George_Smith)\
**Replies:** 1\
**Last updated:** [April 5, 2024, 6:40am UTC](https://discourse.paraview.org/t/add-an-input-file-format-tutorial-or-guide-for-users-in-paraview-website/14344 "2024-04-05T06:40:47Z")

</div>

Many file types are supported by Paraview. However, for beginers or users who generate the data sets by programming, it is always confused about the specific format of the supported input files and hard to organize the d…

---

## [Smooth filter Usage](https://discourse.paraview.org/t/smooth-filter-usage/13559)

<div class="topic-metadata">

**Author:** [@OMTin](https://discourse.paraview.org/u/OMTin)\
**Replies:** 0\
**Last updated:** [December 19, 2023, 8:53am UTC](https://discourse.paraview.org/t/smooth-filter-usage/13559 "2023-12-19T08:53:12Z")

</div>

I first used ExtractSurface filter in Paraview, and then used Smooth filter for surface smoothing. However, there are partition boundaries for each kernel, and I don’t want it to have partition boundaries. What should I …

[Previous page](https://discourse.paraview.org/top.md?page=146&per_page=50&period=all)

[Next page](https://discourse.paraview.org/top.md?page=148&per_page=50&period=all)