# Development

**URL:** https://discourse.paraview.org/c/development/6.md?no_subcategories=false&page=6

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

**Page:** 7

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## [How paraview python wrappings are done?](https://discourse.paraview.org/t/how-paraview-python-wrappings-are-done/15106)

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**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 1\
**Last updated:** [August 8, 2024, 7:27am UTC](https://discourse.paraview.org/t/how-paraview-python-wrappings-are-done/15106 "2024-08-08T07:27:31Z")

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Hello! paraview\_plugin\_add\_property\_widget KIND kind TYPE my\_property\_widget\_type CLASS\_NAME ClassName INTERFACES interfaces SOURCES sources) paraview\_add\_plugin(propwidget VERSION "1.0" UI\_INTERFACES ${in…

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## [Ambient Occulsion broken with scaled screenshots](https://discourse.paraview.org/t/ambient-occulsion-broken-with-scaled-screenshots/7393)

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**Author:** [@GregVernon](https://discourse.paraview.org/u/GregVernon)\
**Replies:** 6\
**Last updated:** [August 8, 2024, 1:23am UTC](https://discourse.paraview.org/t/ambient-occulsion-broken-with-scaled-screenshots/7393 "2024-08-08T01:23:41Z")

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To replicate, simply take any model (here I used a cylinder source geometry) and turn on ambient occlusion. Then save a screenshot to disk, but use the x2 option to increase the output resolution. Original resolution …

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## [How to reduce ParaView CMake configure time?](https://discourse.paraview.org/t/how-to-reduce-paraview-cmake-configure-time/15100)

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**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 3\
**Last updated:** [August 7, 2024, 3:33pm UTC](https://discourse.paraview.org/t/how-to-reduce-paraview-cmake-configure-time/15100 "2024-08-07T15:33:42Z")

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Hello, dear ParaView developers Could you please give me an advise on how to reduce CMake configure time? It costs me 30s every time I modify any of CMakeLists files Thanks

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## [What is the difference between paraview and vtk python wrappings?](https://discourse.paraview.org/t/what-is-the-difference-between-paraview-and-vtk-python-wrappings/15119)

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**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 2\
**Last updated:** [August 5, 2024, 9:29am UTC](https://discourse.paraview.org/t/what-is-the-difference-between-paraview-and-vtk-python-wrappings/15119 "2024-08-05T09:29:19Z")

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Hello dear Paraview developers What is the difference between paraview and vtk python wrappings? Where to start to explore this question? Thanks!

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## [How to make a property in plugin XML only to call a function?](https://discourse.paraview.org/t/how-to-make-a-property-in-plugin-xml-only-to-call-a-function/15122)

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**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 1\
**Last updated:** [August 5, 2024, 9:25am UTC](https://discourse.paraview.org/t/how-to-make-a-property-in-plugin-xml-only-to-call-a-function/15122 "2024-08-05T09:25:42Z")

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Hello How to make a property in plugin XML only to call a function? thanks!

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## [Refactoring MultiBlock Inspector](https://discourse.paraview.org/t/refactoring-multiblock-inspector/12670)

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**Author:** [@spyridon97](https://discourse.paraview.org/u/spyridon97)\
**Replies:** 30\
**Last updated:** [August 2, 2024, 2:17pm UTC](https://discourse.paraview.org/t/refactoring-multiblock-inspector/12670 "2024-08-02T14:17:57Z")

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When working with vtkPartitionedDataSetCollections or vtkMultiBlockDataSets , the MultiBlock Inspector proves to be an invaluable tool. This widget empowers you to effortlessly toggle the visibility of distinct blocks wi…

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## [Does paraview use CPython only?](https://discourse.paraview.org/t/does-paraview-use-cpython-only/15107)

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**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 1\
**Last updated:** [July 24, 2024, 12:32pm UTC](https://discourse.paraview.org/t/does-paraview-use-cpython-only/15107 "2024-07-24T12:32:25Z")

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Hello dear paraview developers! Could you please clarify, does paraview use CPython only or other python implementations could be used too? Best regards, Mike

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

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**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")

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

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## [ParaView-CMake issue](https://discourse.paraview.org/t/paraview-cmake-issue/15086)

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**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 1\
**Last updated:** [July 19, 2024, 12:43pm UTC](https://discourse.paraview.org/t/paraview-cmake-issue/15086 "2024-07-19T12:43:39Z")

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Hello Dear paraview developers! It seems like a CMake issue. I have added my custom filter to root CMakeLists.txt: set(autoload\_plugins ... And to set(paraview\_default\_plugins However my plugin is still not built a…

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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)

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**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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## [Read FMU and visualize](https://discourse.paraview.org/t/read-fmu-and-visualize/14947)

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**Author:** [@towa](https://discourse.paraview.org/u/towa)\
**Replies:** 4\
**Last updated:** [July 11, 2024, 7:16am UTC](https://discourse.paraview.org/t/read-fmu-and-visualize/14947 "2024-07-11T07:16:15Z")

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Hello all, i have a FMU file from a ROM. My goal is to read this to paraview adopt parameters and view the results. Is this possible? Best regards

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## [Visualizing Abaqus Output Database in ParaView](https://discourse.paraview.org/t/visualizing-abaqus-output-database-in-paraview/10691)

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**Author:** [@Cam](https://discourse.paraview.org/u/Cam)\
**Replies:** 5\
**Last updated:** [July 11, 2024, 2:13am UTC](https://discourse.paraview.org/t/visualizing-abaqus-output-database-in-paraview/10691 "2024-07-11T02:13:18Z")

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Dear ParaView Community, I have been using ParaView for a while, and I really appreciate Kitware built such great tool as open-source. I use Abaqus in my workflow so I often wonder how can I visualize \*.odb files inside…

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## [ParaView issue templates on GitLab](https://discourse.paraview.org/t/paraview-issue-templates-on-gitlab/14695)

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**Author:** [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)\
**Replies:** 14\
**Last updated:** [July 9, 2024, 10:55am UTC](https://discourse.paraview.org/t/paraview-issue-templates-on-gitlab/14695 "2024-07-09T10:55:41Z")

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With the aim of improving and streamlining communication about bugs and problems with ParaView, we are considering adding issue templates for regular use to ParaView’s GitLab project. An issue template contains boilerpl…

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## [How does MarkDirty() work?](https://discourse.paraview.org/t/how-does-markdirty-work/15016)

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**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 0\
**Last updated:** [July 9, 2024, 9:02am UTC](https://discourse.paraview.org/t/how-does-markdirty-work/15016 "2024-07-09T09:02:31Z")

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Hello, dear Paraview developers! Could you clarify, please, how MarkDirty() works? Thanks!

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## [Why does Selection disappear after Apply?](https://discourse.paraview.org/t/why-does-selection-disappear-after-apply/14996)

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**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 0\
**Last updated:** [July 5, 2024, 12:04pm UTC](https://discourse.paraview.org/t/why-does-selection-disappear-after-apply/14996 "2024-07-05T12:04:37Z")

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Hello I ve created selection using, including, this: vtkSMProxy\* selectionSource = repr-\>GetSessionProxyManager()-\>NewProxy("sources", "IDSelectionSource"); vtkSMPropertyHelper(selectionSource, "FieldType").Set(vtk…

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## [How does addPropertyLink work?](https://discourse.paraview.org/t/how-does-addpropertylink-work/14995)

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**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 0\
**Last updated:** [July 5, 2024, 9:30am UTC](https://discourse.paraview.org/t/how-does-addpropertylink-work/14995 "2024-07-05T09:30:23Z")

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Hello! Could you clarify please how addPropertyLink works? And what is the difference between this approach, and second, where one can manually handle the changing of the widget, and then do ProxyHelper(…).Set(— new va…

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## [Apply button is not active](https://discourse.paraview.org/t/apply-button-is-not-active/14994)

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**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 0\
**Last updated:** [July 5, 2024, 9:08am UTC](https://discourse.paraview.org/t/apply-button-is-not-active/14994 "2024-07-05T09:08:17Z")

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Apply button is not active after my custom widget, which does not work with particular properties, but calls some commands via ClientServerStreams, after this widget is changed How to activate apply button again?

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## [How to prevent RequestData after update pipeline?](https://discourse.paraview.org/t/how-to-prevent-requestdata-after-update-pipeline/14972)

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**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 7\
**Last updated:** [July 5, 2024, 8:04am UTC](https://discourse.paraview.org/t/how-to-prevent-requestdata-after-update-pipeline/14972 "2024-07-05T08:04:22Z")

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Hello dear Paraview developers! I use the following pattern to get the dataset on the client side if (filter) { //\[WHAT FOR?\] filter-\>UpdatePipeline(); dataSet = vtkDataSet::SafeDownCast(vtkAlgorithm::S…

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## [What is the difference between two approaches to get the dataset on the client side?](https://discourse.paraview.org/t/what-is-the-difference-between-two-approaches-to-get-the-dataset-on-the-client-side/14993)

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**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 1\
**Last updated:** [July 5, 2024, 7:37am UTC](https://discourse.paraview.org/t/what-is-the-difference-between-two-approaches-to-get-the-dataset-on-the-client-side/14993 "2024-07-05T07:37:15Z")

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Hello! What is the difference between the two ways to get the dataset on the client side? auto sourceProxy = pqActiveObjects::instance().activeSource()-\>getProxy(); auto algorithm = sourceProxy ? vtkAlgorithm::Safe…

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## [pvpython in vscode](https://discourse.paraview.org/t/pvpython-in-vscode/12925)

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**Author:** [@PombearView](https://discourse.paraview.org/u/PombearView)\
**Replies:** 3\
**Last updated:** [June 29, 2024, 6:12pm UTC](https://discourse.paraview.org/t/pvpython-in-vscode/12925 "2024-06-29T18:12:31Z")

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Hi all, I’m looking for best tips on setting up a development environment for coding pvpython in vscode. Ideally have linting for paraview (by setting the paths to the paraview site-packages and Lib i can autocomplete: …

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## [VTK Dataset creation from custom data](https://discourse.paraview.org/t/vtk-dataset-creation-from-custom-data/14925)

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**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 1\
**Last updated:** [June 26, 2024, 7:29am UTC](https://discourse.paraview.org/t/vtk-dataset-creation-from-custom-data/14925 "2024-06-26T07:29:06Z")

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Hello, dear Mathieu! I have custom data in my own specific data format, and I want to convert it to VTK Dataset format. I know that original data was a mesh of hexahedrons, however my custom data format foes not contain…

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## [What is the precise difference between client and server side objects?](https://discourse.paraview.org/t/what-is-the-precise-difference-between-client-and-server-side-objects/14877)

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**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 1\
**Last updated:** [June 18, 2024, 12:38pm UTC](https://discourse.paraview.org/t/what-is-the-precise-difference-between-client-and-server-side-objects/14877 "2024-06-18T12:38:13Z")

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Hello dear paraview developers! Could you please clarify the difference between client and server side objects? I understand that vtk objects and algorithms mostly dwell in the server side, and on the client side there…

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## [How to get field data of a given pipeline using SM Proxy model?](https://discourse.paraview.org/t/how-to-get-field-data-of-a-given-pipeline-using-sm-proxy-model/14262)

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**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 13\
**Last updated:** [June 18, 2024, 12:31pm UTC](https://discourse.paraview.org/t/how-to-get-field-data-of-a-given-pipeline-using-sm-proxy-model/14262 "2024-06-18T12:31:54Z")

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Hello dear paraview developers! I have a tremendously imporant question. How can one receive from the given pipeline element, the list of fields, and the data, corresponding to that field? My best regards

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## [What is the difference between two ways of getting data from server?](https://discourse.paraview.org/t/what-is-the-difference-between-two-ways-of-getting-data-from-server/14876)

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**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 1\
**Last updated:** [June 18, 2024, 12:30pm UTC](https://discourse.paraview.org/t/what-is-the-difference-between-two-ways-of-getting-data-from-server/14876 "2024-06-18T12:30:41Z")

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Hello! What is the difference between “ClientServerMoveData” filter and algorithm-\>GetOutputDataObject(0) ? What is the difference between auto sourceProxy = pqActiveObjects::instance().activeSource()-\>getProxy(); …

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## [With PV 5.12.0, the code of property widgets does not properly receive updated selections](https://discourse.paraview.org/t/with-pv-5-12-0-the-code-of-property-widgets-does-not-properly-receive-updated-selections/14850)

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**Author:** [@cobo](https://discourse.paraview.org/u/cobo)\
**Replies:** 2\
**Last updated:** [June 14, 2024, 3:07pm UTC](https://discourse.paraview.org/t/with-pv-5-12-0-the-code-of-property-widgets-does-not-properly-receive-updated-selections/14850 "2024-06-14T15:07:23Z")

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This potential ParaView bug is observed inside the code of a property widget that belongs to some self-written filter plugin. The same property widget worked fine in versions of ParaView up to 5.10, but not any more with…

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## [Trouble with correct display of interactive plane for Clip filter in derived render view](https://discourse.paraview.org/t/trouble-with-correct-display-of-interactive-plane-for-clip-filter-in-derived-render-view/14827)

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**Author:** [@cobo](https://discourse.paraview.org/u/cobo)\
**Replies:** 9\
**Last updated:** [June 13, 2024, 4:18pm UTC](https://discourse.paraview.org/t/trouble-with-correct-display-of-interactive-plane-for-clip-filter-in-derived-render-view/14827 "2024-06-13T16:18:11Z")

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Situation: porting ParaView custom application from PV5.10 to 5.12. Affected plugin: a derived “render view” where only the points related selection buttons are hidden, no own code or functionality added to standard ren…

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## [VTKHDF file with empty CellData](https://discourse.paraview.org/t/vtkhdf-file-with-empty-celldata/14816)

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**Author:** [@leecyid](https://discourse.paraview.org/u/leecyid)\
**Replies:** 4\
**Last updated:** [June 10, 2024, 1:25pm UTC](https://discourse.paraview.org/t/vtkhdf-file-with-empty-celldata/14816 "2024-06-10T13:25:22Z")

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Hello, I’m currently working on the VTKHDF output routine for my simulation code. It works well when the CellData exists, but Paraview cannot open the VTKHDF file when the dataset is empty (in situations like the code c…

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## [What types are wrapped up by Paraview wrappings?](https://discourse.paraview.org/t/what-types-are-wrapped-up-by-paraview-wrappings/14760)

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**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 1\
**Last updated:** [June 9, 2024, 5:39pm UTC](https://discourse.paraview.org/t/what-types-are-wrapped-up-by-paraview-wrappings/14760 "2024-06-09T17:39:20Z")

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Hello! I know that vtkClientServer.cxx wraps up some functions. I use this knowledge to pass some data from the filter to the widgets which support this filter, for user to get more information about the filter How c…

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## [Should one run cmake cache update after plugin xml modification??](https://discourse.paraview.org/t/should-one-run-cmake-cache-update-after-plugin-xml-modification/14797)

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**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 1\
**Last updated:** [June 7, 2024, 12:19pm UTC](https://discourse.paraview.org/t/should-one-run-cmake-cache-update-after-plugin-xml-modification/14797 "2024-06-07T12:19:19Z")

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Hello dear paraview developers! Could you please clarify wheter one should run cmake cache update after plugin xml modification?? Or he can just build? Thanks

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## [Developement](https://discourse.paraview.org/t/developement/14796)

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**Author:** [@joint](https://discourse.paraview.org/u/joint)\
**Replies:** 4\
**Last updated:** [June 7, 2024, 12:18pm UTC](https://discourse.paraview.org/t/developement/14796 "2024-06-07T12:18:33Z")

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Hello! I have a group of widgets in my custom filter And one of these widgets changes some values in the filter and also calls some functions which trigger modification of other variables displayed on other widgets. Bu…

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