# Top

**URL:** https://discourse.paraview.org/top.md?page=182&period=all

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**Page:** 183

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## [noise reduction on isosurface](https://discourse.paraview.org/t/noise-reduction-on-isosurface/16392)

<div class="topic-metadata">

**Author:** [@FedericoPinto02](https://discourse.paraview.org/u/FedericoPinto02)\
**Replies:** 0\
**Last updated:** [March 27, 2025, 4:17pm UTC](https://discourse.paraview.org/t/noise-reduction-on-isosurface/16392 "2025-03-27T16:17:33Z")

</div>

hi im in postprocessing phase of a simulation of a lid driven cavity 3d, i want to ask if there are a kind of filter that reduce the noise and help me to like smoothing the isosurface

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## [Setting Omniverse Connnector in python scripts](https://discourse.paraview.org/t/setting-omniverse-connnector-in-python-scripts/16143)

<div class="topic-metadata">

**Author:** [@aakevin20121016](https://discourse.paraview.org/u/aakevin20121016)\
**Replies:** 0\
**Last updated:** [February 11, 2025, 3:30am UTC](https://discourse.paraview.org/t/setting-omniverse-connnector-in-python-scripts/16143 "2025-02-11T03:30:04Z")

</div>

Hi everyone, I’m trying visualizing data on omniverse usd composer app using python scripts. But from now on, I can’t find any useful documents or articles. Is there anyone has any experience of it. Thanks a lot.

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## [VTM writer used with Catalyst and large number of processes fails due to excessive memory usage](https://discourse.paraview.org/t/vtm-writer-used-with-catalyst-and-large-number-of-processes-fails-due-to-excessive-memory-usage/15629)

<div class="topic-metadata">

**Author:** [@cmorsbach](https://discourse.paraview.org/u/cmorsbach)\
**Replies:** 0\
**Last updated:** [October 24, 2024, 1:57pm UTC](https://discourse.paraview.org/t/vtm-writer-used-with-catalyst-and-large-number-of-processes-fails-due-to-excessive-memory-usage/15629 "2024-10-24T13:57:08Z")

</div>

Hi all, I’ve been running some strong scaling tests with our CFD code, which has in-situ functionality using ParaView Catalyst V1. The data, we pass to the co-processor is a vtkMultiBlockDataset where only one vtkUnstru…

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## [ParaView Office Hours (December 10, 2025)](https://discourse.paraview.org/t/paraview-office-hours-december-10-2025/17361)

<div class="topic-metadata">

**Author:** [@dcthomp](https://discourse.paraview.org/u/dcthomp)\
**Replies:** 0\
**Last updated:** [December 10, 2025, 5:20pm UTC](https://discourse.paraview.org/t/paraview-office-hours-december-10-2025/17361 "2025-12-10T17:20:22Z")

</div>

Please join @Sankhesh\_Jhaveri and me for ParaView Office Hours tomorrow (Thursday, December 11th, 2025), from 3:30 - 5:00 pm Eastern time. This is an opportunity to get your questions about using ParaView answered by Par…

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## [How to plot streamfunction](https://discourse.paraview.org/t/how-to-plot-streamfunction/16739)

<div class="topic-metadata">

**Author:** [@scabo](https://discourse.paraview.org/u/scabo)\
**Replies:** 0\
**Last updated:** [May 28, 2025, 8:19pm UTC](https://discourse.paraview.org/t/how-to-plot-streamfunction/16739 "2025-05-28T20:19:27Z")

</div>

Hi I have a 3Dpipe flow. I want to plot lines of constant streamfunction on the c/s so that i can plot equidistant streamlines. When i am drawing the streamlines I cannot make it of desired streamfunction value or equid…

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## [Webinar: Making Modeling and Simulation Widely Available on the Web](https://discourse.paraview.org/t/webinar-making-modeling-and-simulation-widely-available-on-the-web/15500)

<div class="topic-metadata">

**Author:** [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)\
**Replies:** 0\
**Last updated:** [October 6, 2024, 6:18pm UTC](https://discourse.paraview.org/t/webinar-making-modeling-and-simulation-widely-available-on-the-web/15500 "2024-10-06T18:18:00Z")

</div>

Please join Lisa Avila and me as we present the webinar “Making Modeling and Simulation Widely Available on the Web” this Wednesday, October 9, at 12 noon Eastern Time. Find out how you can use open source platforms like…

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## [Does plugin XML change require cmake reconfigure?](https://discourse.paraview.org/t/does-plugin-xml-change-require-cmake-reconfigure/15099)

<div class="topic-metadata">

**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 1\
**Last updated:** [July 22, 2024, 10:50am UTC](https://discourse.paraview.org/t/does-plugin-xml-change-require-cmake-reconfigure/15099 "2024-07-22T10:50:13Z")

</div>

Hello! Could you please clarify whether plugin XML change requires cmake reconfigure or not? Thanks!

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

<div class="topic-metadata">

**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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## [How to hide the proxy from python?](https://discourse.paraview.org/t/how-to-hide-the-proxy-from-python/16186)

<div class="topic-metadata">

**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 0\
**Last updated:** [February 18, 2025, 10:21am UTC](https://discourse.paraview.org/t/how-to-hide-the-proxy-from-python/16186 "2025-02-18T10:21:03Z")

</div>

Hello! I have a custom widget which has no python analogue And I want to hide it from the python menu How could I do it? Thanks

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## [AxisAlignedSlice dropping Fielddata](https://discourse.paraview.org/t/axisalignedslice-dropping-fielddata/17763)

<div class="topic-metadata">

**Author:** [@jfavre](https://discourse.paraview.org/u/jfavre)\
**Replies:** 1\
**Last updated:** [October 9, 2026, 8:59am UTC](https://discourse.paraview.org/t/axisalignedslice-dropping-fielddata/17763 "2026-10-09T08:59:07Z")

</div>

I use vtkOverlappingAMR with a private reader plugin deriving from vtkAMRBaseReader All is good until I use AxisAlignedSlice to cut through my grids, and my FieldData attached to each grid have disappeared. The same doe…

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## [ParaView Office Hours April 16, 2026](https://discourse.paraview.org/t/paraview-office-hours-april-16-2026/17521)

<div class="topic-metadata">

**Author:** [@Bob\_Obara](https://discourse.paraview.org/u/Bob_Obara)\
**Replies:** 0\
**Last updated:** [April 13, 2026, 9:17pm UTC](https://discourse.paraview.org/t/paraview-office-hours-april-16-2026/17521 "2026-04-13T21:17:30Z")

</div>

Have a question about how to use ParaView? Ask ParaView experts at this week’s office hours! Time: Thursday, April 16 · 3:30 – 5:00pm Time zone: America/New\_York Google Meet joining info Video call link: https://meet.…

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## [Empty rendering after scaling](https://discourse.paraview.org/t/empty-rendering-after-scaling/16765)

<div class="topic-metadata">

**Author:** [@Silver](https://discourse.paraview.org/u/Silver)\
**Replies:** 0\
**Last updated:** [June 2, 2025, 2:57pm UTC](https://discourse.paraview.org/t/empty-rendering-after-scaling/16765 "2025-06-02T14:57:53Z")

</div>

Hi, I first scaled my volume to \[0, 1\]^3 by: reader = OpenDataFile("./example\_volume.vti") reader.UpdatePipeline() transform = Transform(Input=reader) transform.Transform.Scale = \[1/512, 1/512, 1/512\] transform.UpdateP…

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## [seg fault crash when loading many vtu files](https://discourse.paraview.org/t/seg-fault-crash-when-loading-many-vtu-files/16129)

<div class="topic-metadata">

**Author:** [@hieu325](https://discourse.paraview.org/u/hieu325)\
**Replies:** 0\
**Last updated:** [February 7, 2025, 10:49am UTC](https://discourse.paraview.org/t/seg-fault-crash-when-loading-many-vtu-files/16129 "2025-02-07T10:49:58Z")

</div>

Dear ParaView user community, I am having seg fault problem when loading large dataset, \>2GB containing 50M grid cells distributed over many vtu files, using GPU local rendering. Strangely, cpu local rendering with Mesa…

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## [Wrong colors if 2 scalars defined](https://discourse.paraview.org/t/wrong-colors-if-2-scalars-defined/15367)

<div class="topic-metadata">

**Author:** [@amim](https://discourse.paraview.org/u/amim)\
**Replies:** 0\
**Last updated:** [September 9, 2024, 9:38pm UTC](https://discourse.paraview.org/t/wrong-colors-if-2-scalars-defined/15367 "2024-09-09T21:38:30Z")

</div>

I have a simple vtk legacy file where I defined 2 SCALAR fields under CELL\_DATA. The first one is of “int” type and uses the default LOOKUP\_TABLE. The second one is of “float” type and uses my own LOOKUP\_TABLE. When I d…

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## [What is paraview prototype proxy?](https://discourse.paraview.org/t/what-is-paraview-prototype-proxy/15311)

<div class="topic-metadata">

**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 0\
**Last updated:** [August 27, 2024, 2:08pm UTC](https://discourse.paraview.org/t/what-is-paraview-prototype-proxy/15311 "2024-08-27T14:08:51Z")

</div>

Hello dear paraview developers I have created a custom representation and view However it does not seem to work The reason for that is apparently that ‘paraview prototype proxy’ is not created. What is it? Thank you

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## [Python vtkRemotingCore import error](https://discourse.paraview.org/t/python-vtkremotingcore-import-error/16900)

<div class="topic-metadata">

**Author:** [@Northern\_Condor](https://discourse.paraview.org/u/Northern_Condor)\
**Replies:** 0\
**Last updated:** [July 7, 2025, 8:14am UTC](https://discourse.paraview.org/t/python-vtkremotingcore-import-error/16900 "2025-07-07T08:14:13Z")

</div>

Hello I appended all the paths from pvpython sys to my inrerpreter sys Though, I get Traceback (most recent call last): File "C:/Users/Mike/RelWithDebInfo\_Default/bin/Lib/site-packages\\paraview\\\_\_init\_\_.py", line 16…

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## [\[Webinar\] Microworkflows: Making Advanced Simulation Tools More Accessible and Impactful](https://discourse.paraview.org/t/webinar-microworkflows-making-advanced-simulation-tools-more-accessible-and-impactful/16455)

<div class="topic-metadata">

**Author:** [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)\
**Replies:** 0\
**Last updated:** [April 11, 2025, 2:17pm UTC](https://discourse.paraview.org/t/webinar-microworkflows-making-advanced-simulation-tools-more-accessible-and-impactful/16455 "2025-04-11T14:17:49Z")

</div>

Please join me next week for our webinar titled “Microworkflows: Making Advanced Simulation Tools More Accessible and Impactful” Advanced modeling and simulation tools offer groundbreaking scientific and engineering ins…

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## [Issues with getIconType](https://discourse.paraview.org/t/issues-with-geticontype/16145)

<div class="topic-metadata">

**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 0\
**Last updated:** [February 11, 2025, 6:25am UTC](https://discourse.paraview.org/t/issues-with-geticontype/16145 "2025-02-11T06:25:21Z")

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Hello I hva a grievous problem QString getIconType(pqOutputPort\* port) const { if (port-\>getSource()-\>property("INSITU\_EXTRACT").toBool()) { return PipelineModelIconType::INSITU\_EXTRACT; } els…

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## [Vorticity expressed as a scalar field when using the ParticleTracer filter](https://discourse.paraview.org/t/vorticity-expressed-as-a-scalar-field-when-using-the-particletracer-filter/15465)

<div class="topic-metadata">

**Author:** [@mgarreau](https://discourse.paraview.org/u/mgarreau)\
**Replies:** 0\
**Last updated:** [September 27, 2024, 2:16pm UTC](https://discourse.paraview.org/t/vorticity-expressed-as-a-scalar-field-when-using-the-particletracer-filter/15465 "2024-09-27T14:16:23Z")

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Hi, I am using the ParticleTracer filter which has a “Compute Vorticity” option. I was wondering why the generated vorticity field is a scalar and not a vector field. Does this vorticity correspond to the projection of …

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## [wrong auto-completion in python shell](https://discourse.paraview.org/t/wrong-auto-completion-in-python-shell/17707)

<div class="topic-metadata">

**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 0\
**Last updated:** [August 31, 2026, 7:26am UTC](https://discourse.paraview.org/t/wrong-auto-completion-in-python-shell/17707 "2026-08-31T07:26:53Z")

</div>

Hello, I came across a bug with the auto completion in functions in the python shell. if we define a function with default values such as: def add(firstValue=0,secondValue=1): return firstValue+secondValue so we …

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## [ParaView Office Hours July 9, 2026](https://discourse.paraview.org/t/paraview-office-hours-july-9-2026/17652)

<div class="topic-metadata">

**Author:** [@Bob\_Obara](https://discourse.paraview.org/u/Bob_Obara)\
**Replies:** 0\
**Last updated:** [July 7, 2026, 6:27pm UTC](https://discourse.paraview.org/t/paraview-office-hours-july-9-2026/17652 "2026-07-07T18:27:50Z")

</div>

Have a question about how to use ParaView? Ask ParaView experts at this week’s office hours! Time: Thursday, July 9 · 3:30 – 5:00pm Time zone: America/New\_York Google Meet joining info Video call link: Google Meet mee…

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## [xdmf file size limitation due to ASCII encoding?](https://discourse.paraview.org/t/xdmf-file-size-limitation-due-to-ascii-encoding/17444)

<div class="topic-metadata">

**Author:** [@violettinged](https://discourse.paraview.org/u/violettinged)\
**Replies:** 0\
**Last updated:** [February 16, 2026, 12:25pm UTC](https://discourse.paraview.org/t/xdmf-file-size-limitation-due-to-ascii-encoding/17444 "2026-02-16T12:25:08Z")

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Is there an inherent size limit for plain text .xdmf files (ASCII encoding) containing both the metadata and heavy data? I noticed that in this case the Xdmf3ReaderT crashes even for simplistic meshes if the number of el…

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## [Implementing \`.series\` support for ExodusII](https://discourse.paraview.org/t/implementing-series-support-for-exodusii/17425)

<div class="topic-metadata">

**Author:** [@drwells](https://discourse.paraview.org/u/drwells)\
**Replies:** 0\
**Last updated:** [February 3, 2026, 8:04am UTC](https://discourse.paraview.org/t/implementing-series-support-for-exodusii/17425 "2026-02-03T08:04:35Z")

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Hello! While I could use .ex-timeseries, I’d prefer to use the newer .series syntax. I tried adding this myself by following the approach in https://gitlab.kitware.com/paraview/paraview/-/merge\_requests/2532 (i.e., by ad…

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## [Analysing hemodynamics in particular section of patient specific 3D model](https://discourse.paraview.org/t/analysing-hemodynamics-in-particular-section-of-patient-specific-3d-model/16816)

<div class="topic-metadata">

**Author:** [@anuj](https://discourse.paraview.org/u/anuj)\
**Replies:** 0\
**Last updated:** [June 15, 2025, 5:22pm UTC](https://discourse.paraview.org/t/analysing-hemodynamics-in-particular-section-of-patient-specific-3d-model/16816 "2025-06-15T17:22:59Z")

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In ParaView, is there any way to get the variation range of haemodynamic parameters by selecting a particular section of the patient-specific 3D model?

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## [Obtain the variation of physical information on the cross-section with spatial position](https://discourse.paraview.org/t/obtain-the-variation-of-physical-information-on-the-cross-section-with-spatial-position/15668)

<div class="topic-metadata">

**Author:** [@Guanlong](https://discourse.paraview.org/u/Guanlong)\
**Replies:** 0\
**Last updated:** [October 31, 2024, 3:56am UTC](https://discourse.paraview.org/t/obtain-the-variation-of-physical-information-on-the-cross-section-with-spatial-position/15668 "2024-10-31T03:56:32Z")

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Hello, researchers. I have made a section, and now I want to obtain the average porosity variation at different axial positions on the section. The target result is shown in the following figure. How can I obtain similar…

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## [What do I have to do if I want to add new view?](https://discourse.paraview.org/t/what-do-i-have-to-do-if-i-want-to-add-new-view/15354)

<div class="topic-metadata">

**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 0\
**Last updated:** [September 8, 2024, 10:38am UTC](https://discourse.paraview.org/t/what-do-i-have-to-do-if-i-want-to-add-new-view/15354 "2024-09-08T10:38:59Z")

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Hello! Could you please clarify what I should do if I want to add a new view? How views\_and\_representations.xml is designed? What does it mean? Is it enough? Thanks

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## [What is input property in plugin xml?](https://discourse.paraview.org/t/what-is-input-property-in-plugin-xml/15286)

<div class="topic-metadata">

**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 0\
**Last updated:** [August 23, 2024, 9:49am UTC](https://discourse.paraview.org/t/what-is-input-property-in-plugin-xml/15286 "2024-08-23T09:49:59Z")

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Hello dear paraview developers! Could you explain please what it means? \<InputProperty command="SetInputConnection" name="Input" \> \<ProxyGroupDomain name="groups"\> \<Group na…

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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)

<div class="topic-metadata">

**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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## [Potential length overflow for large data](https://discourse.paraview.org/t/potential-length-overflow-for-large-data/15516)

<div class="topic-metadata">

**Author:** [@pkufourier](https://discourse.paraview.org/u/pkufourier)\
**Replies:** 0\
**Last updated:** [October 8, 2024, 8:04am UTC](https://discourse.paraview.org/t/potential-length-overflow-for-large-data/15516 "2024-10-08T08:04:05Z")

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This problem happens when I loaded a data exceed 2GB that was generated by AMReX, with Paraview 5.13.0 under Windows 10. See details at The WriteMultiLevelPlotfile or Paraview seems to overflow for large data sheet · Is…

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## [What is 'ignoring duplicate instance function' ?](https://discourse.paraview.org/t/what-is-ignoring-duplicate-instance-function/15098)

<div class="topic-metadata">

**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 1\
**Last updated:** [August 8, 2024, 7:46am UTC](https://discourse.paraview.org/t/what-is-ignoring-duplicate-instance-function/15098 "2024-08-08T07:46:04Z")

</div>

Hello dear Paraview developers! I faced ‘ignoring duplicate instance function ’ error message What does it mean and how to fix it? Thanks!

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## [ParaView Office Hours September 17, 2026](https://discourse.paraview.org/t/paraview-office-hours-september-17-2026/17729)

<div class="topic-metadata">

**Author:** [@Bob\_Obara](https://discourse.paraview.org/u/Bob_Obara)\
**Replies:** 0\
**Last updated:** [September 14, 2026, 4:32pm UTC](https://discourse.paraview.org/t/paraview-office-hours-september-17-2026/17729 "2026-09-14T16:32:34Z")

</div>

You have questions, we have answers. Meet with ParaView experts at this week’s office hours! ParaView office hours Thursday, September 17 · 3:30 – 5:00pm Time zone: America/New\_York Google Meet joining info Video ca…

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## [Field evolution at different time intervals](https://discourse.paraview.org/t/field-evolution-at-different-time-intervals/15357)

<div class="topic-metadata">

**Author:** [@lihaoyun521](https://discourse.paraview.org/u/lihaoyun521)\
**Replies:** 0\
**Last updated:** [September 9, 2024, 3:16am UTC](https://discourse.paraview.org/t/field-evolution-at-different-time-intervals/15357 "2024-09-09T03:16:54Z")

</div>

Dear friends, How can I use ParaView to obtain the field evolution at different time intervals only through one figure and label them using different colors? Thanks a lot!

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## [Camera series example code](https://discourse.paraview.org/t/camera-series-example-code/16766)

<div class="topic-metadata">

**Author:** [@Silver](https://discourse.paraview.org/u/Silver)\
**Replies:** 0\
**Last updated:** [June 2, 2025, 3:04pm UTC](https://discourse.paraview.org/t/camera-series-example-code/16766 "2025-06-02T15:04:43Z")

</div>

Hi, I’m trying to create a camera series in python. Is there any example/toy code that I can learn? Thank you.

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## [Simple example using SelectionQuerySource()?](https://discourse.paraview.org/t/simple-example-using-selectionquerysource/16235)

<div class="topic-metadata">

**Author:** [@alwaysonemorebug](https://discourse.paraview.org/u/alwaysonemorebug)\
**Replies:** 0\
**Last updated:** [February 25, 2025, 12:44pm UTC](https://discourse.paraview.org/t/simple-example-using-selectionquerysource/16235 "2025-02-25T12:44:57Z")

</div>

Is there a simple example of pvpython code that shows the correct use SelectionQuerySource()? SelectionQuerySource() was recommended as a solution that allows to include selections in the saved state. However, I’ve trie…

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## [ParaView Office Hours September 3, 2026](https://discourse.paraview.org/t/paraview-office-hours-september-3-2026/17709)

<div class="topic-metadata">

**Author:** [@Bob\_Obara](https://discourse.paraview.org/u/Bob_Obara)\
**Replies:** 0\
**Last updated:** [August 31, 2026, 7:39pm UTC](https://discourse.paraview.org/t/paraview-office-hours-september-3-2026/17709 "2026-08-31T19:39:04Z")

</div>

You have questions, we have answers. Meet with ParaView experts at this week’s office hours! ParaView office hours Thursday, September 3 · 3:30 – 5:00pm Time zone: America/New\_York Google Meet joining info Video cal…

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## [data not showing on renderviewer when static, when rotated with mouse data apears](https://discourse.paraview.org/t/data-not-showing-on-renderviewer-when-static-when-rotated-with-mouse-data-apears/17254)

<div class="topic-metadata">

**Author:** [@otaolafr](https://discourse.paraview.org/u/otaolafr)\
**Replies:** 0\
**Last updated:** [October 20, 2025, 1:58pm UTC](https://discourse.paraview.org/t/data-not-showing-on-renderviewer-when-static-when-rotated-with-mouse-data-apears/17254 "2025-10-20T13:58:02Z")

</div>

hello, i have been testing different parameters of refinement and smoothing on my data, and saving a screenshot to the disk. For the most refined cases, i got a strange behavior, the saved image was completly empty with…

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## [How to get name of the file in the consequent filters downstream in the pipeline](https://discourse.paraview.org/t/how-to-get-name-of-the-file-in-the-consequent-filters-downstream-in-the-pipeline/15495)

<div class="topic-metadata">

**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 0\
**Last updated:** [October 4, 2024, 11:10am UTC](https://discourse.paraview.org/t/how-to-get-name-of-the-file-in-the-consequent-filters-downstream-in-the-pipeline/15495 "2024-10-04T11:10:16Z")

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Hello! I have the file that is being read and then is processed by several filters. However, I want to use the original file name in one of the consequent filters to dump some data to relevant file for debug purposes. H…

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## [ParaView web site access may be reduced 10/1/26 8:00 AM EDT - 10/1/26 8:30 EDT](https://discourse.paraview.org/t/paraview-web-site-access-may-be-reduced-10-1-26-8-00-am-edt-10-1-26-8-30-edt/17752)

<div class="topic-metadata">

**Author:** [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)\
**Replies:** 0\
**Last updated:** [September 29, 2026, 7:31pm UTC](https://discourse.paraview.org/t/paraview-web-site-access-may-be-reduced-10-1-26-8-00-am-edt-10-1-26-8-30-edt/17752 "2026-09-29T19:31:13Z")

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Kitware will be performing network maintenance from 10/1/26 8:00 AM EDT - 10/1/26 8:30 EDT that may briefly interrupt network traffic when accessing paraview.org, discourse.paraview.org, gitlab.kitware.com, and open.cdas…

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## [How to make widget take its value from the file?](https://discourse.paraview.org/t/how-to-make-widget-take-its-value-from-the-file/15085)

<div class="topic-metadata">

**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 0\
**Last updated:** [July 19, 2024, 9:45am UTC](https://discourse.paraview.org/t/how-to-make-widget-take-its-value-from-the-file/15085 "2024-07-19T09:45:32Z")

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Hello dear friends, Paraview developers! I have a custom Filter, which has some class members, X and Y. X is being passed to filter as a field of dataset in RequestDataObject, and Y is calculated based on X. Also I hav…

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## [How to get rid of Long Dialogue window](https://discourse.paraview.org/t/how-to-get-rid-of-long-dialogue-window/17765)

<div class="topic-metadata">

**Author:** [@pfahd](https://discourse.paraview.org/u/pfahd)\
**Replies:** 1\
**Last updated:** [October 15, 2026, 7:32am UTC](https://discourse.paraview.org/t/how-to-get-rid-of-long-dialogue-window/17765 "2026-10-15T07:32:23Z")

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I use ParaView6.2.0 on RedHat-9, And using the binary release version of the software. When I open “File-\>Open”, a long window opens - which I have to draf towards left utill I can see the button to click. I thought i…

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## [Free webinar October 14: Extending ParaView with CMB for Water-Flow Simulation](https://discourse.paraview.org/t/free-webinar-october-14-extending-paraview-with-cmb-for-water-flow-simulation/17761)

<div class="topic-metadata">

**Author:** [@Bob\_Obara](https://discourse.paraview.org/u/Bob_Obara)\
**Replies:** 0\
**Last updated:** [October 8, 2026, 7:58am UTC](https://discourse.paraview.org/t/free-webinar-october-14-extending-paraview-with-cmb-for-water-flow-simulation/17761 "2026-10-08T07:58:27Z")

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Computational Model Builder (CMB) adds capabilities for pre-processing to ParaView’s well-established post-processing tools. Join David Thompson and Bob O’Bara on October 14, 2026, from noon–1 p.m. ET for a free webinar…

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## [Cell and point labels in multiple colors](https://discourse.paraview.org/t/cell-and-point-labels-in-multiple-colors/15364)

<div class="topic-metadata">

**Author:** [@amim](https://discourse.paraview.org/u/amim)\
**Replies:** 0\
**Last updated:** [September 9, 2024, 1:18pm UTC](https://discourse.paraview.org/t/cell-and-point-labels-in-multiple-colors/15364 "2024-09-09T13:18:00Z")

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I have multiple disjoint sets of points and cells created with Find Data. I would like to display each set labels in different colors at the same time. But no matter what I try, once I use, say, Select Cells with Polygon…

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## [How to create y=f(x) vtkMultiBlock dataset via programmable source?](https://discourse.paraview.org/t/how-to-create-y-f-x-vtkmultiblock-dataset-via-programmable-source/15285)

<div class="topic-metadata">

**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 0\
**Last updated:** [August 23, 2024, 9:30am UTC](https://discourse.paraview.org/t/how-to-create-y-f-x-vtkmultiblock-dataset-via-programmable-source/15285 "2024-08-23T09:30:21Z")

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Hello dear Paraview developers! Could you explain please how to create y=f(x) vtkMultiBlock dataset via programmable source? Thanks!

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## [ParaView Office Hours October 15, 2026](https://discourse.paraview.org/t/paraview-office-hours-october-15-2026/17764)

<div class="topic-metadata">

**Author:** [@Bob\_Obara](https://discourse.paraview.org/u/Bob_Obara)\
**Replies:** 1\
**Last updated:** [October 15, 2026, 7:36pm UTC](https://discourse.paraview.org/t/paraview-office-hours-october-15-2026/17764 "2026-10-15T19:36:05Z")

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You have questions, we have answers. Meet with ParaView experts at this week’s office hours! ParaView office hours Thursday, October 15 · 3:30 – 5:00pm Time zone: America/New\_York Google Meet joining info Video call…

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## [What for vtkPVContextView in vtkChartRepresentation is needed?](https://discourse.paraview.org/t/what-for-vtkpvcontextview-in-vtkchartrepresentation-is-needed/15308)

<div class="topic-metadata">

**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 0\
**Last updated:** [August 27, 2024, 7:35am UTC](https://discourse.paraview.org/t/what-for-vtkpvcontextview-in-vtkchartrepresentation-is-needed/15308 "2024-08-27T07:35:08Z")

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Hello! vtkChartRepresentation.cxx contains vtkWeakPointer\<vtkPVContextView\> ContextView; What for is it needed? Thanks

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## [flow rate through holes with irregular shpae](https://discourse.paraview.org/t/flow-rate-through-holes-with-irregular-shpae/15727)

<div class="topic-metadata">

**Author:** [@JY9527](https://discourse.paraview.org/u/JY9527)\
**Replies:** 0\
**Last updated:** [November 14, 2024, 8:59am UTC](https://discourse.paraview.org/t/flow-rate-through-holes-with-irregular-shpae/15727 "2024-11-14T08:59:03Z")

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Hello, I have a question regarding the computation of flow rate through a hole connecting two domains. In my simulations, blood flows from region A to region B, geometry is reconstructed from CTA so the hole between two…

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## [Purpose of UpdatePlotProperties](https://discourse.paraview.org/t/purpose-of-updateplotproperties/15333)

<div class="topic-metadata">

**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 0\
**Last updated:** [September 1, 2024, 10:11am UTC](https://discourse.paraview.org/t/purpose-of-updateplotproperties/15333 "2024-09-01T10:11:09Z")

</div>

Hello dear PV developers What for is this function needed? Remoting\\Views\\vtkXYChartRepresentation.cxx this-\>Internals-\>UpdatePlotProperties(this); Thanks

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