# Development **URL:** https://discourse.paraview.org/c/development/6.md?no_subcategories=false&page=25 [Latest](https://discourse.paraview.org/latest.md) · [Categories](https://discourse.paraview.org/categories.md) · [Tags](https://discourse.paraview.org/tags.md) **Page:** 26 --- ## [Integrating ITK and VTK: A Survey](https://discourse.paraview.org/t/integrating-itk-and-vtk-a-survey/5241)
**Author:** [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)\ **Replies:** 0\ **Last updated:** [September 1, 2020, 10:10pm UTC](https://discourse.paraview.org/t/integrating-itk-and-vtk-a-survey/5241 "2020-09-01T22:10:53Z")
Dear ParaView community, We need your input! We would like community feedback on our plans to create an enhanced version of the Visualization Tool (VTK) that includes the image segmentation, registration and analysis … --- ## [Adding Image/Polydata in HyperTreeGrid](https://discourse.paraview.org/t/adding-image-polydata-in-hypertreegrid/5229)
**Author:** [@syedharoonalam](https://discourse.paraview.org/u/syedharoonalam)\ **Replies:** 1\ **Last updated:** [August 31, 2020, 4:16pm UTC](https://discourse.paraview.org/t/adding-image-polydata-in-hypertreegrid/5229 "2020-08-31T16:16:52Z")
I am reaching out to ask for some help with CxxHyperTreeGridExample/FEAdaptor.cxx example. I am new to the hyper grid topic and like to know that how can I use my points from image or polydata to create the hyper tree g… --- ## [Custom dock widget that should NOT appear initially](https://discourse.paraview.org/t/custom-dock-widget-that-should-not-appear-initially/5142)
**Author:** [@cobo](https://discourse.paraview.org/u/cobo)\ **Replies:** 5\ **Last updated:** [August 28, 2020, 2:13pm UTC](https://discourse.paraview.org/t/custom-dock-widget-that-should-not-appear-initially/5142 "2020-08-28T14:13:35Z")
I have written a plugin for a custom dock widget in my PV custom application - everything works fine “as advertised”. Only with one thing I am struggling since a couple of hours: I want that the dock panel does NOT appe… --- ## [New Catalyst API](https://discourse.paraview.org/t/new-catalyst-api/4837)
**Author:** [@utkarsh.ayachit](https://discourse.paraview.org/u/utkarsh.ayachit)\ **Replies:** 16\ **Last updated:** [August 23, 2020, 1:45pm UTC](https://discourse.paraview.org/t/new-catalyst-api/4837 "2020-08-23T13:45:28Z")
We have been mulling updates to Catalyst API – the API and patterns developers use to when instrumenting a simulation to work with Catalyst – for a while now and we’ve had several discussions with several folks. This is … --- ## [Problem with Paraview Gitlab Master Build on Linux](https://discourse.paraview.org/t/problem-with-paraview-gitlab-master-build-on-linux/4996)
**Author:** [@joeh](https://discourse.paraview.org/u/joeh)\ **Replies:** 4\ **Last updated:** [August 13, 2020, 4:22pm UTC](https://discourse.paraview.org/t/problem-with-paraview-gitlab-master-build-on-linux/4996 "2020-08-13T16:22:38Z")
Hello, I have found that when building the Paraview Gitlab Master Build on Linux, that three symbolic links are missing from the Superbuild/install bin directory ln -s python3 python ln -s python3-config python-confi… --- ## [Second level nested proxy property data is not written to .pvsm](https://discourse.paraview.org/t/second-level-nested-proxy-property-data-is-not-written-to-pvsm/5085)
**Author:** [@HollowSun0](https://discourse.paraview.org/u/HollowSun0)\ **Replies:** 2\ **Last updated:** [August 12, 2020, 2:39pm UTC](https://discourse.paraview.org/t/second-level-nested-proxy-property-data-is-not-written-to-pvsm/5085 "2020-08-12T14:39:27Z")
Hello! I’m having a small issue related to saving the data of a proxy property inside another proxy instantiated by another proxy property. The tree looks like this Main Source Proxy -\> Proxy1 -\> Proxy2 Main Source Pr… --- ## [Pressing Tab key jumps to search after field value modification](https://discourse.paraview.org/t/pressing-tab-key-jumps-to-search-after-field-value-modification/5082)
**Author:** [@eisenlohr](https://discourse.paraview.org/u/eisenlohr)\ **Replies:** 1\ **Last updated:** [August 12, 2020, 11:50am UTC](https://discourse.paraview.org/t/pressing-tab-key-jumps-to-search-after-field-value-modification/5082 "2020-08-12T11:50:03Z")
The properties pane allows navigating between consecutive fields by pressing the Tab key. However, if one presses Tab after modifying some fields by typing a value, the focus then jumps to the search field…! I encountere… --- ## [How to run the VTK Remote Renderer Example](https://discourse.paraview.org/t/how-to-run-the-vtk-remote-renderer-example/5063)
**Author:** [@EnnioBolondi](https://discourse.paraview.org/u/EnnioBolondi)\ **Replies:** 2\ **Last updated:** [August 11, 2020, 2:52pm UTC](https://discourse.paraview.org/t/how-to-run-the-vtk-remote-renderer-example/5063 "2020-08-11T14:52:55Z")
Hello, I would like to run the following example: https://kitware.github.io/paraviewweb/examples/RemoteRenderer.html But I didn’t understand how to have it working on my computer. I downloaded the source code from her… --- ## [vtk.module files with variable content](https://discourse.paraview.org/t/vtk-module-files-with-variable-content/5066)
**Author:** [@cobo](https://discourse.paraview.org/u/cobo)\ **Replies:** 2\ **Last updated:** [August 10, 2020, 5:17pm UTC](https://discourse.paraview.org/t/vtk-module-files-with-variable-content/5066 "2020-08-10T17:17:57Z")
vtk.module files are “kind of CMake code”, but so far I have not seen one that contains variables to be resolved in CMake style, like NAME SomePrefix::${ModuleName} LIBRARY\_NAME ${ModuleName} etc. It it possible at… --- ## [Is there any abilities to add a interactive widgets on LineChartView same as 3D widgets on RenderView?](https://discourse.paraview.org/t/is-there-any-abilities-to-add-a-interactive-widgets-on-linechartview-same-as-3d-widgets-on-renderview/2273)
**Author:** [@e-kolosov](https://discourse.paraview.org/u/e-kolosov)\ **Replies:** 6\ **Last updated:** [August 10, 2020, 7:56am UTC](https://discourse.paraview.org/t/is-there-any-abilities-to-add-a-interactive-widgets-on-linechartview-same-as-3d-widgets-on-renderview/2273 "2020-08-10T07:56:04Z")
Is there any abilities to add a interactive widgets on LineChartView same as 3D widgets on RenderView? If it’s possible, then how can I do it? What classes I should to use? --- ## [Call filter multiple times after changes on slider property](https://discourse.paraview.org/t/call-filter-multiple-times-after-changes-on-slider-property/4982)
**Author:** [@Alberto](https://discourse.paraview.org/u/Alberto)\ **Replies:** 4\ **Last updated:** [August 6, 2020, 7:24am UTC](https://discourse.paraview.org/t/call-filter-multiple-times-after-changes-on-slider-property/4982 "2020-08-06T07:24:10Z")
I compiled a filter which works with a slider value and a Python script. The first time I run the filter it works fine. Then, if I change the value of slider and do “Apply” the filter doesn’t work anymore; the Python s… --- ## [Extracts/Exports and Catalyst Python Scripts](https://discourse.paraview.org/t/extracts-exports-and-catalyst-python-scripts/4569)
**Author:** [@utkarsh.ayachit](https://discourse.paraview.org/u/utkarsh.ayachit)\ **Replies:** 34\ **Last updated:** [August 5, 2020, 5:14pm UTC](https://discourse.paraview.org/t/extracts-exports-and-catalyst-python-scripts/4569 "2020-08-05T17:14:40Z")
A release or so ago (I believe it was with 5.7) we introduced a concept of exports that is available through the Exports Inspector. If you’re not too familiar with it, you’re not to blame. The documentation and user guid… --- ## [ParaView 5.9 release cycle starting late August](https://discourse.paraview.org/t/paraview-5-9-release-cycle-starting-late-august/5028)
**Author:** [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)\ **Replies:** 0\ **Last updated:** [August 4, 2020, 3:26pm UTC](https://discourse.paraview.org/t/paraview-5-9-release-cycle-starting-late-august/5028 "2020-08-04T15:26:19Z")
Hi folks, We are just a few weeks away for the start of the ParaView 5.9 release cycle, likely to begin August 28. Once ParaView’s master branch is forked for v5.9.0, only bug fixes will be allowed in to the 5.9 release… --- ## [Consistent Font size for Text source](https://discourse.paraview.org/t/consistent-font-size-for-text-source/4794)
**Author:** [@vbolea](https://discourse.paraview.org/u/vbolea)\ **Replies:** 3\ **Last updated:** [July 31, 2020, 7:41pm UTC](https://discourse.paraview.org/t/consistent-font-size-for-text-source/4794 "2020-07-31T19:41:22Z")
Currently the font size of a text created using Text Source varies upon the size of the RenderView. I found the reason to be that TextSource defaults TextScaleMode to viewport which scales the text according to the view … --- ## [How to make Filter time aware when one of its input is from temporal reader](https://discourse.paraview.org/t/how-to-make-filter-time-aware-when-one-of-its-input-is-from-temporal-reader/4960)
**Author:** [@sharon](https://discourse.paraview.org/u/sharon)\ **Replies:** 1\ **Last updated:** [July 29, 2020, 10:05am UTC](https://discourse.paraview.org/t/how-to-make-filter-time-aware-when-one-of-its-input-is-from-temporal-reader/4960 "2020-07-29T10:05:59Z")
Dear All, I write one filter that has two input, one is vtkPolyData and the other is vtkTable. It special is vtkTable is from time series files. When i load time series files for vtkTable data, then i apply it with my… --- ## [XML plugin syntax evolution between ParaView 5.6 and 5.8](https://discourse.paraview.org/t/xml-plugin-syntax-evolution-between-paraview-5-6-and-5-8/4975)
**Author:** [@Loic](https://discourse.paraview.org/u/Loic)\ **Replies:** 1\ **Last updated:** [July 29, 2020, 7:23am UTC](https://discourse.paraview.org/t/xml-plugin-syntax-evolution-between-paraview-5-6-and-5-8/4975 "2020-07-29T07:23:58Z")
I’ve noticed some changes in the way ParaView 5.8 handles several custom plugins when a .pvsm state file is loaded. Theses plugins are based on the vtkPythonProgrammableFilter class and uses a XML file to display some p… --- ## [ParaView Glance is hard to find](https://discourse.paraview.org/t/paraview-glance-is-hard-to-find/4977)
**Author:** [@wascott](https://discourse.paraview.org/u/wascott)\ **Replies:** 5\ **Last updated:** [July 28, 2020, 9:51pm UTC](https://discourse.paraview.org/t/paraview-glance-is-hard-to-find/4977 "2020-07-28T21:51:20Z")
ParaView Glance is hard to find. Why isn’t there a big, bright, blinking button on the paraview.org front page saying “Here is Glance!” @jourdain @cory.quammen @utkarsh.ayachit --- ## [Slice + Crinkle looking different between 5.6.2 and 5.8.0](https://discourse.paraview.org/t/slice-crinkle-looking-different-between-5-6-2-and-5-8-0/4965)
**Author:** [@wandadars](https://discourse.paraview.org/u/wandadars)\ **Replies:** 2\ **Last updated:** [July 27, 2020, 5:36pm UTC](https://discourse.paraview.org/t/slice-crinkle-looking-different-between-5-6-2-and-5-8-0/4965 "2020-07-27T17:36:00Z")
I’m having an issue visualizing the cells in my grid using the slice+crinkle cut method that I had been using since I started using Paraview now that I’ve upgraded to 5.8.0(I also tried this on 5.7.0 and it does the same… --- ## [ParaView crash for large datasets (309GB) using XDMF2](https://discourse.paraview.org/t/paraview-crash-for-large-datasets-309gb-using-xdmf2/4939)
**Author:** [@FabianDe](https://discourse.paraview.org/u/FabianDe)\ **Replies:** 3\ **Last updated:** [July 24, 2020, 7:12pm UTC](https://discourse.paraview.org/t/paraview-crash-for-large-datasets-309gb-using-xdmf2/4939 "2020-07-24T19:12:13Z")
Hello ParaView community, first off, I am fairly new in the ParaView cosmos but am highly excited seeing the capabilities it offers especially with regards to my CFD simulation data that I have acquired and am trying to… --- ## [Possible ResampleWithDataset Bug in 5.8.0 Using Intel Compilers](https://discourse.paraview.org/t/possible-resamplewithdataset-bug-in-5-8-0-using-intel-compilers/4866)
**Author:** [@nate\_develder](https://discourse.paraview.org/u/nate_develder)\ **Replies:** 5\ **Last updated:** [July 24, 2020, 1:36pm UTC](https://discourse.paraview.org/t/possible-resamplewithdataset-bug-in-5-8-0-using-intel-compilers/4866 "2020-07-24T13:36:15Z")
Hi All, I have two builds of paraview on the same machine. One was built with intel compilers, the other with gcc (see spec below). I’ve built some dependencies prior to the build using spack (hdf5, netcdf-c, python) bu… --- ## [ParaView Selection Query](https://discourse.paraview.org/t/paraview-selection-query/4948)
**Author:** [@Ramzi\_Massad](https://discourse.paraview.org/u/Ramzi_Massad)\ **Replies:** 0\ **Last updated:** [July 24, 2020, 10:01am UTC](https://discourse.paraview.org/t/paraview-selection-query/4948 "2020-07-24T10:01:46Z")
I have an XMF file that I’m currently processing. I’ve been using the selection query tool for the past weeks. After going back to ParaView, I’m unable to use this tool. Every time I attempt to run a query, the program c… --- ## [Possibility to convert datarray to UInt64](https://discourse.paraview.org/t/possibility-to-convert-datarray-to-uint64/4836)
**Author:** [@ErikNixdorf](https://discourse.paraview.org/u/ErikNixdorf)\ **Replies:** 6\ **Last updated:** [July 20, 2020, 12:50pm UTC](https://discourse.paraview.org/t/possibility-to-convert-datarray-to-uint64/4836 "2020-07-20T12:50:17Z")
Hi, I have been attempting to create a new datarray of type =UInt64 using the calculator filter but failed. Even choosing Unsigned Long as Result Array Type in the filter results in a dataarray of type UInt32. On the oth… --- ## [MacOS ParaView 5.8.1-RC1 scipy issue](https://discourse.paraview.org/t/macos-paraview-5-8-1-rc1-scipy-issue/4878)
**Author:** [@MBG](https://discourse.paraview.org/u/MBG)\ **Replies:** 1\ **Last updated:** [July 19, 2020, 5:56pm UTC](https://discourse.paraview.org/t/macos-paraview-5-8-1-rc1-scipy-issue/4878 "2020-07-19T17:56:07Z")
ERROR: In /Users/kitware/dashboards/buildbot-slave/9f496ada/source-paraview/VTK/Filters/Python/vtkPythonAlgorithm.cxx, line 112 vtkPythonAlgorithm (0x600000100820): Failure when calling method: "ProcessRequest": Traceba… --- ## [Develop custom paraview-based app with libraries embedded statically](https://discourse.paraview.org/t/develop-custom-paraview-based-app-with-libraries-embedded-statically/4882)
**Author:** [@Yoshino](https://discourse.paraview.org/u/Yoshino)\ **Replies:** 1\ **Last updated:** [July 19, 2020, 12:04pm UTC](https://discourse.paraview.org/t/develop-custom-paraview-based-app-with-libraries-embedded-statically/4882 "2020-07-19T12:04:02Z")
I have built my app in Release mode, which still depends on paraview dll libraries. And I have to put my exe program into bin directories where all the paraview dependencies are located in order to run. I think there sh… --- ## [Outstanding performance of paraview zip](https://discourse.paraview.org/t/outstanding-performance-of-paraview-zip/4626)
**Author:** [@Yoshino](https://discourse.paraview.org/u/Yoshino)\ **Replies:** 2\ **Last updated:** [July 18, 2020, 2:31am UTC](https://discourse.paraview.org/t/outstanding-performance-of-paraview-zip/4626 "2020-07-18T02:31:58Z")
I use paraview zip for visualization purpose and paraview project built from soure for paraview-brand application development. Obviously the former peforms well in efficiency, so it could play animation smoothly, which i… --- ## [MacOS ParaView 5.8.1-RC1 Python 3 issue](https://discourse.paraview.org/t/macos-paraview-5-8-1-rc1-python-3-issue/4874)
**Author:** [@MBG](https://discourse.paraview.org/u/MBG)\ **Replies:** 0\ **Last updated:** [July 17, 2020, 2:29pm UTC](https://discourse.paraview.org/t/macos-paraview-5-8-1-rc1-python-3-issue/4874 "2020-07-17T14:29:35Z")
\>\>\> Python 3.7.4 (default, Jul 17 2020, 07:58:07) \[Clang 8.1.0 (clang-802.0.42)\] on darwin \>\>\> from paraview.simple import \* \>\>\> \>\>\> import xarray as xr Traceback (most recent call last): File "\", line 1, i… --- ## [cannot load multiple ParaDiS data file in v5.8 (ubuntu 20.04)](https://discourse.paraview.org/t/cannot-load-multiple-paradis-data-file-in-v5-8-ubuntu-20-04/4872)
**Author:** [@yi\_hu](https://discourse.paraview.org/u/yi_hu)\ **Replies:** 0\ **Last updated:** [July 17, 2020, 7:19am UTC](https://discourse.paraview.org/t/cannot-load-multiple-paradis-data-file-in-v5-8-ubuntu-20-04/4872 "2020-07-17T07:19:39Z")
I am using ubuntu 20.04 and installed ParaView 5.8. It can load single .data file from my ParaDiS simulation. It crashes when loading the second (the same happens for loading a result serie). Could anyone help me with t… --- ## [Paraview 5.8.0 crashes when using vtkXMLPolyDataReader in Programmable Source](https://discourse.paraview.org/t/paraview-5-8-0-crashes-when-using-vtkxmlpolydatareader-in-programmable-source/4819)
**Author:** [@AHanke](https://discourse.paraview.org/u/AHanke)\ **Replies:** 6\ **Last updated:** [July 15, 2020, 7:23am UTC](https://discourse.paraview.org/t/paraview-5-8-0-crashes-when-using-vtkxmlpolydatareader-in-programmable-source/4819 "2020-07-15T07:23:22Z")
Running ParaView 5.8.0-Windows-Python3.7-msvc2015-64bit on Windows 10 Version 1903 on GTX 1080 Driver Version 451.67 with Python Version 3.7.8:4b47a5b6ba I tried using a Python wrapped vtkXMLPolyDataReader in the script … --- ## [Migrating ParaView Guide to Sphinx / ReadTheDocs](https://discourse.paraview.org/t/migrating-paraview-guide-to-sphinx-readthedocs/4695)
**Author:** [@utkarsh.ayachit](https://discourse.paraview.org/u/utkarsh.ayachit)\ **Replies:** 22\ **Last updated:** [July 14, 2020, 9:17am UTC](https://discourse.paraview.org/t/migrating-paraview-guide-to-sphinx-readthedocs/4695 "2020-07-14T09:17:27Z")
As I am updating the ParaView Guide and then Catalyst Guide to reflect the new Extract Generator related changes, I keep feeling we really need to migrate to a Sphinx-based documentation generation approach. A while ago … --- ## [Proxy property not generating in client server wrapper source](https://discourse.paraview.org/t/proxy-property-not-generating-in-client-server-wrapper-source/4799)
**Author:** [@HollowSun0](https://discourse.paraview.org/u/HollowSun0)\ **Replies:** 3\ **Last updated:** [July 10, 2020, 1:30pm UTC](https://discourse.paraview.org/t/proxy-property-not-generating-in-client-server-wrapper-source/4799 "2020-07-10T13:30:44Z")
Hi there! I made a filter called MainProxy.cxx with the following xml: \ \