# Development

**URL:** https://discourse.paraview.org/c/development/6.md?no_subcategories=false&page=36

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

**Page:** 37

---

## [paraview load a VTK File wait for few minutes](https://discourse.paraview.org/t/paraview-load-a-vtk-file-wait-for-few-minutes/1022)

<div class="topic-metadata">

**Author:** [@arthur](https://discourse.paraview.org/u/arthur)\
**Replies:** 7\
**Last updated:** [December 11, 2018, 5:58pm UTC](https://discourse.paraview.org/t/paraview-load-a-vtk-file-wait-for-few-minutes/1022 "2018-12-11T17:58:15Z")

</div>

hi evevyone, recently,I Build paraview source with CMake and vs2015 with QT5.10,It build seccused,but when I use paraview.exe which created by vs2015 ,the paraview load a VTK File wait for few minutes,it is too slower th…

---

## [Problem implementing a "manager" in a ParaView custom application](https://discourse.paraview.org/t/problem-implementing-a-manager-in-a-paraview-custom-application/996)

<div class="topic-metadata">

**Author:** [@cobo](https://discourse.paraview.org/u/cobo)\
**Replies:** 3\
**Last updated:** [December 5, 2018, 11:51am UTC](https://discourse.paraview.org/t/problem-implementing-a-manager-in-a-paraview-custom-application/996 "2018-12-05T11:51:45Z")

</div>

Not sure whether this is more a CMake or a Windows related problem, but first of all it happens with a custom application derived from ParaView. In that application I need a singleton class, for some data that need to b…

---

## [\[FIXED\] Problem in building a Dock Panel plugin for Paraview](https://discourse.paraview.org/t/fixed-problem-in-building-a-dock-panel-plugin-for-paraview/966)

<div class="topic-metadata">

**Author:** [@sabyasachi](https://discourse.paraview.org/u/sabyasachi)\
**Replies:** 0\
**Last updated:** [November 27, 2018, 1:44pm UTC](https://discourse.paraview.org/t/fixed-problem-in-building-a-dock-panel-plugin-for-paraview/966 "2018-11-27T13:44:02Z")

</div>

Hello all, I am trying to create a Dock Panel plugin for a custom-build of Paraview. For this, I created a QDockWidget in QT Creator (based on QT 5) and then wrote the code in CMakeLists.txt to build it as a Paraview pl…

---

## [PARAVIEW\_USE\_UNIFIED\_BINDINGS = ON will not build](https://discourse.paraview.org/t/paraview-use-unified-bindings-on-will-not-build/941)

<div class="topic-metadata">

**Author:** [@raymon68](https://discourse.paraview.org/u/raymon68)\
**Replies:** 3\
**Last updated:** [November 27, 2018, 6:54pm UTC](https://discourse.paraview.org/t/paraview-use-unified-bindings-on-will-not-build/941 "2018-11-27T18:54:59Z")

</div>

I am trying to get a Python Binding of the SpyPlotReader family of components. I am working an App were I need to import spcth files. VTK does not have this family of readers. I have tried this build using Paraview vers…

---

## [Drop vtkSMFieldDataDomain](https://discourse.paraview.org/t/drop-vtksmfielddatadomain/940)

<div class="topic-metadata">

**Author:** [@utkarsh.ayachit](https://discourse.paraview.org/u/utkarsh.ayachit)\
**Replies:** 4\
**Last updated:** [November 23, 2018, 12:01am UTC](https://discourse.paraview.org/t/drop-vtksmfielddatadomain/940 "2018-11-23T00:01:33Z")

</div>

I am working on fixing issue #18621. As I was looking at related things, it occurred to me that vtkSMFieldDataDomain is pretty much not necessary anymore. I cannot see of any use-case that’s not already covered by simply…

---

## [Setting Transparency with a Selected Scalar Array](https://discourse.paraview.org/t/setting-transparency-with-a-selected-scalar-array/599)

<div class="topic-metadata">

**Author:** [@banesullivan](https://discourse.paraview.org/u/banesullivan)\
**Replies:** 1\
**Last updated:** [November 21, 2018, 9:45am UTC](https://discourse.paraview.org/t/setting-transparency-with-a-selected-scalar-array/599 "2018-11-21T09:45:46Z")

</div>

I’m curious if there is a way to color a dataset by an attribute then set the opacity mapping via a separate array in the same dataset. For example, I often have a volume of data with two arrays: the data array (e.g. so…

---

## [Could anyone please share a STRUCTURED\_POINTS vtk file (i.e., vtkImageData)?](https://discourse.paraview.org/t/could-anyone-please-share-a-structured-points-vtk-file-i-e-vtkimagedata/898)

<div class="topic-metadata">

**Author:** [@tttsss](https://discourse.paraview.org/u/tttsss)\
**Replies:** 1\
**Last updated:** [November 14, 2018, 8:43am UTC](https://discourse.paraview.org/t/could-anyone-please-share-a-structured-points-vtk-file-i-e-vtkimagedata/898 "2018-11-14T08:43:55Z")

</div>

Could anyone please share a STRUCTURED\_POINTS vtk file (i.e., vtkImageData) which contains contents of an image? Ideally the size of the image is small so that I can easily analyze it. Also, is it possible to convert an …

---

## [Need to get a valid controller for client-server communication](https://discourse.paraview.org/t/need-to-get-a-valid-controller-for-client-server-communication/879)

<div class="topic-metadata">

**Author:** [@Patrick](https://discourse.paraview.org/u/Patrick)\
**Replies:** 2\
**Last updated:** [November 12, 2018, 6:16pm UTC](https://discourse.paraview.org/t/need-to-get-a-valid-controller-for-client-server-communication/879 "2018-11-12T18:16:06Z")

</div>

Hello again, as I wrote yesterday, I am trying to communicate between a server side object and its client proxy. I want to simplify my question: How do I get a valid controller on the client that is responsible for cli…

---

## [gitlab clang format issues](https://discourse.paraview.org/t/gitlab-clang-format-issues/874)

<div class="topic-metadata">

**Author:** [@Andy\_Bauer](https://discourse.paraview.org/u/Andy_Bauer)\
**Replies:** 2\
**Last updated:** [November 9, 2018, 3:59pm UTC](https://discourse.paraview.org/t/gitlab-clang-format-issues/874 "2018-11-09T15:59:17Z")

</div>

For MR 2881 I have a multiline string of Python code in my C++ code that doesn’t pass the clang format check and thus is listed as an error which then won’t allow me to merge my commit. How can I get around that? Note t…

---

## [Problem with mesa super build of ParaView 5.6.0-RC3](https://discourse.paraview.org/t/problem-with-mesa-super-build-of-paraview-5-6-0-rc3/866)

<div class="topic-metadata">

**Author:** [@joeh](https://discourse.paraview.org/u/joeh)\
**Replies:** 2\
**Last updated:** [November 8, 2018, 5:56am UTC](https://discourse.paraview.org/t/problem-with-mesa-super-build-of-paraview-5-6-0-rc3/866 "2018-11-08T05:56:13Z")

</div>

Hello, I ran into an issue with the Mesa build of ParaView 5.6.0-RC3 I could not get LLVM to build. The superbuild failed here \[ 74%\] Linking CXX shared library …/libLLVMWindowsManifest.so /usr/bin/ld: cannot find -l…

---

## [Disable Python tracing while Python wrapping is enabled in ParaView libraries?](https://discourse.paraview.org/t/disable-python-tracing-while-python-wrapping-is-enabled-in-paraview-libraries/865)

<div class="topic-metadata">

**Author:** [@cryos](https://discourse.paraview.org/u/cryos)\
**Replies:** 4\
**Last updated:** [November 7, 2018, 10:07pm UTC](https://discourse.paraview.org/t/disable-python-tracing-while-python-wrapping-is-enabled-in-paraview-libraries/865 "2018-11-07T22:07:06Z")

</div>

I am using large parts of ParaView’s libraries in Tomviz, and we run many Python operations in background threads. As an application we have no use for the tracing functionality, but we came to realize it is always there…

---

## [Anyone tried Python 3.7?](https://discourse.paraview.org/t/anyone-tried-python-3-7/830)

<div class="topic-metadata">

**Author:** [@dcthomp](https://discourse.paraview.org/u/dcthomp)\
**Replies:** 6\
**Last updated:** [November 7, 2018, 3:00pm UTC](https://discourse.paraview.org/t/anyone-tried-python-3-7/830 "2018-11-07T15:00:43Z")

</div>

Hi all, When I built recently with python 3.7 (macos, homebrew python), the python shell in ParaView works, but pvpython crashes on startup with: % ./bin/pvpython Fatal Python error: \_Py\_InitializeCore: main interpret…

---

## [Set size of StringVectorProperty list at loading of state file](https://discourse.paraview.org/t/set-size-of-stringvectorproperty-list-at-loading-of-state-file/845)

<div class="topic-metadata">

**Author:** [@HollowSun0](https://discourse.paraview.org/u/HollowSun0)\
**Replies:** 4\
**Last updated:** [November 6, 2018, 12:48pm UTC](https://discourse.paraview.org/t/set-size-of-stringvectorproperty-list-at-loading-of-state-file/845 "2018-11-06T12:48:14Z")

</div>

Hello, I’ve been working on a ParaView plugin very recently. In the XML definition, I used the following widget: \<StringVectorProperty name="ParameterNames" command="SetParameterNames" …

---

## [ITKVTK - ParaViewQt error](https://discourse.paraview.org/t/itkvtk-paraviewqt-error/818)

<div class="topic-metadata">

**Author:** [@michal.wozniak](https://discourse.paraview.org/u/michal.wozniak)\
**Replies:** 0\
**Last updated:** [November 1, 2018, 8:04pm UTC](https://discourse.paraview.org/t/itkvtk-paraviewqt-error/818 "2018-11-01T20:04:38Z")

</div>

Hi, I’m getting the same error : https://gitlab.kitware.com/paraview/paraview/issues/18454 When I try building ITK, which I will be then using in our custom ParaView, I will get the error: can’t find ParaViewQt.cmake …

---

## [Python Algorithm Plugins and Applying Textures](https://discourse.paraview.org/t/python-algorithm-plugins-and-applying-textures/786)

<div class="topic-metadata">

**Author:** [@banesullivan](https://discourse.paraview.org/u/banesullivan)\
**Replies:** 6\
**Last updated:** [October 25, 2018, 3:49pm UTC](https://discourse.paraview.org/t/python-algorithm-plugins-and-applying-textures/786 "2018-10-25T15:49:28Z")

</div>

In PVGeo, I am implementing a few file readers as Python Algorithm Plugins that read files containing spatial discretization, data values, and textures that can be applied to the surfaces defined. I am curious if it is …

---

## [ParaView Python on Linux needs 4 Unicode width](https://discourse.paraview.org/t/paraview-python-on-linux-needs-4-unicode-width/772)

<div class="topic-metadata">

**Author:** [@banesullivan](https://discourse.paraview.org/u/banesullivan)\
**Replies:** 5\
**Last updated:** [October 25, 2018, 3:41pm UTC](https://discourse.paraview.org/t/paraview-python-on-linux-needs-4-unicode-width/772 "2018-10-25T15:41:13Z")

</div>

Reposting an issue from the superbuild to see if anyone has some advice: The issue Currently, it appears the ParaView’s Python (Linux only) is built with 2 Unicode width which is incompatible with just about every Linux…

---

## [Paraview-superbuild build fails on MacOS](https://discourse.paraview.org/t/paraview-superbuild-build-fails-on-macos/760)

<div class="topic-metadata">

**Author:** [@sabyasachi](https://discourse.paraview.org/u/sabyasachi)\
**Replies:** 8\
**Last updated:** [October 25, 2018, 10:25am UTC](https://discourse.paraview.org/t/paraview-superbuild-build-fails-on-macos/760 "2018-10-25T10:25:20Z")

</div>

Hi, I am trying to build and install paraview with the superbuild procedure on a MacOS. When “ENABLE\_QT5” is on, it unable to build successfully. The following error is obtained: \[ 67%\] Building CXX object VTK/Renderi…

---

## [Superbuild question: using local Paraview sources for custom application?](https://discourse.paraview.org/t/superbuild-question-using-local-paraview-sources-for-custom-application/771)

<div class="topic-metadata">

**Author:** [@cobo](https://discourse.paraview.org/u/cobo)\
**Replies:** 3\
**Last updated:** [October 22, 2018, 4:48pm UTC](https://discourse.paraview.org/t/superbuild-question-using-local-paraview-sources-for-custom-application/771 "2018-10-22T16:48:42Z")

</div>

A custom application is built on a Paraview application, and now I have applied two very little changes in my local copy of the paraview sources (one bug fix that I reported, and one case of turning off warning messages …

---

## [PV + Linux + openvr + Vive - SETUP](https://discourse.paraview.org/t/pv-linux-openvr-vive-setup/721)

<div class="topic-metadata">

**Author:** [@andrealphus](https://discourse.paraview.org/u/andrealphus)\
**Replies:** 1\
**Last updated:** [October 19, 2018, 8:00am UTC](https://discourse.paraview.org/t/pv-linux-openvr-vive-setup/721 "2018-10-19T08:00:26Z")

</div>

There are a few separate threads here and there on this, but I thought I would consolidate and have this as an anchor point for all us poor Linux folks out there. From my understanding, ff you grab the Linux binary from …

---

## [Pre/Post InitializeProxy call missing for Representation Subproxies](https://discourse.paraview.org/t/pre-post-initializeproxy-call-missing-for-representation-subproxies/747)

<div class="topic-metadata">

**Author:** [@mwestphal](https://discourse.paraview.org/u/mwestphal)\
**Replies:** 2\
**Last updated:** [October 17, 2018, 1:01pm UTC](https://discourse.paraview.org/t/pre-post-initializeproxy-call-missing-for-representation-subproxies/747 "2018-10-17T13:01:00Z")

</div>

It looks like Pre/Post InitializeProxy call are not made for RepresentationProxy that are not directly created but are only SubProxy through RepresentationType tag. Is that by design ? or is that missing ?

---

## [Structure For Shearing Curvilinear Mesh](https://discourse.paraview.org/t/structure-for-shearing-curvilinear-mesh/734)

<div class="topic-metadata">

**Author:** [@geoffryan](https://discourse.paraview.org/u/geoffryan)\
**Replies:** 2\
**Last updated:** [October 15, 2018, 11:38pm UTC](https://discourse.paraview.org/t/structure-for-shearing-curvilinear-mesh/734 "2018-10-15T23:38:25Z")

</div>

Hi! I have written a C++ plugin to read data from a grid-based Hydro code (called Disco: https://arxiv.org/abs/1605.03577). The code utilizes a moving mesh where grid cells can move on “tracks” and shear past each other…

---

## [Creation of a vtkPolyData child class](https://discourse.paraview.org/t/creation-of-a-vtkpolydata-child-class/702)

<div class="topic-metadata">

**Author:** [@HollowSun0](https://discourse.paraview.org/u/HollowSun0)\
**Replies:** 1\
**Last updated:** [October 15, 2018, 12:48am UTC](https://discourse.paraview.org/t/creation-of-a-vtkpolydata-child-class/702 "2018-10-15T00:48:02Z")

</div>

Hello dear developers, I’m having a hard time showing a custom-built data set in the information panel of ParaView. This custom dataset is a child of vtkPolyData in the form of: class MODULE\_EXPORT meshDataSet : pu…

---

## [Scene export - developing additional format](https://discourse.paraview.org/t/scene-export-developing-additional-format/715)

<div class="topic-metadata">

**Author:** [@Nicholas\_Yue](https://discourse.paraview.org/u/Nicholas_Yue)\
**Replies:** 1\
**Last updated:** [October 12, 2018, 4:28am UTC](https://discourse.paraview.org/t/scene-export-developing-additional-format/715 "2018-10-12T04:28:12Z")

</div>

Hi, I wish to add a new scene export format for Paraview. Is this something that can be done via a Python/C++ plugin for Paraview or do I have to make the change at the Paraview source code level and do a full recompile…

---

## [Axis labels are out of control](https://discourse.paraview.org/t/axis-labels-are-out-of-control/705)

<div class="topic-metadata">

**Author:** [@banesullivan](https://discourse.paraview.org/u/banesullivan)\
**Replies:** 4\
**Last updated:** [October 11, 2018, 7:35pm UTC](https://discourse.paraview.org/t/axis-labels-are-out-of-control/705 "2018-10-11T19:35:58Z")

</div>

The one thing about ParaView that drives me a bit crazy: when dealing with expansive datasets, the axis labels are out of control, illegible, and majorly slow down rendering. This is a problem with every dataset I visua…

---

## [Internal .foam reader for OpenFOAM data: Issue with fixedGradient boundary condition](https://discourse.paraview.org/t/internal-foam-reader-for-openfoam-data-issue-with-fixedgradient-boundary-condition/698)

<div class="topic-metadata">

**Author:** [@ykanani](https://discourse.paraview.org/u/ykanani)\
**Replies:** 3\
**Last updated:** [October 11, 2018, 10:14am UTC](https://discourse.paraview.org/t/internal-foam-reader-for-openfoam-data-issue-with-fixedgradient-boundary-condition/698 "2018-10-11T10:14:35Z")

</div>

Hi, The OpenFOAM data writer does not write the face values associated to the fixedGradient boundary condition. If ParaView is loaded with Openfoam libraries (i.e. ParaFoam), ParaView correctly evaluates the patch value…

---

## [Failure to run ParaView 5.6.0-RC2 mesa build over remote X connection - Unable to find valid OpenGL 3.2 or later](https://discourse.paraview.org/t/failure-to-run-paraview-5-6-0-rc2-mesa-build-over-remote-x-connection-unable-to-find-valid-opengl-3-2-or-later/655)

<div class="topic-metadata">

**Author:** [@joeh](https://discourse.paraview.org/u/joeh)\
**Replies:** 36\
**Last updated:** [October 10, 2018, 4:36pm UTC](https://discourse.paraview.org/t/failure-to-run-paraview-5-6-0-rc2-mesa-build-over-remote-x-connection-unable-to-find-valid-opengl-3-2-or-later/655 "2018-10-10T16:36:23Z")

</div>

Hello, I was trying to run the Mesa version of ParaView 5.6.0-RC2 over a remote X connection. This was possible with the Mesa version of ParaView 5.5.1, but it seems to no longer be possible in 5.6.0-RC2. The error I …

---

## [GitLab label change - workflow:customer-review -\> workflow:needs-verification](https://discourse.paraview.org/t/gitlab-label-change-workflow-customer-review-workflow-needs-verification/694)

<div class="topic-metadata">

**Author:** [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)\
**Replies:** 0\
**Last updated:** [October 8, 2018, 3:43pm UTC](https://discourse.paraview.org/t/gitlab-label-change-workflow-customer-review-workflow-needs-verification/694 "2018-10-08T15:43:58Z")

</div>

We have made a slight change to the labels used to indicate an issue’s state on GitLab for ParaView to make its meaning clearer. After an issue has been resolved to the satisfaction of ParaView developers, please mark i…

---

## [using vtkWarningMacro in a thread stops abruptly this last (vtkOutputWindow thread safety)](https://discourse.paraview.org/t/using-vtkwarningmacro-in-a-thread-stops-abruptly-this-last-vtkoutputwindow-thread-safety/611)

<div class="topic-metadata">

**Author:** [@embeddedmz](https://discourse.paraview.org/u/embeddedmz)\
**Replies:** 6\
**Last updated:** [October 3, 2018, 3:47pm UTC](https://discourse.paraview.org/t/using-vtkwarningmacro-in-a-thread-stops-abruptly-this-last-vtkoutputwindow-thread-safety/611 "2018-10-03T15:47:31Z")

</div>

Hello, When I use vtkWarningMacro in another thread in my writer class in Catalyst, I don’t have any issues. However, when I use my writer in ParaView, to save a result, vtkWarningMacro stops abruptly the thread launch…

---

## [Set a preferable representation type for a filter](https://discourse.paraview.org/t/set-a-preferable-representation-type-for-a-filter/675)

<div class="topic-metadata">

**Author:** [@embeddedmz](https://discourse.paraview.org/u/embeddedmz)\
**Replies:** 0\
**Last updated:** [October 2, 2018, 12:32pm UTC](https://discourse.paraview.org/t/set-a-preferable-representation-type-for-a-filter/675 "2018-10-02T12:32:27Z")

</div>

Hello, I use this XML element to set the preferrable view for : \<Hints\> \<ShowInMenu category="MyCompany"/\> \<View type="MyView" port="0" /\> \<RepresentationType view="MyView" type="Surface" /\> \</Hints\> It works fo…

---

## [Failed to locate property... - Issue on porting from 5.5 to 5.6 rc2](https://discourse.paraview.org/t/failed-to-locate-property-issue-on-porting-from-5-5-to-5-6-rc2/651)

<div class="topic-metadata">

**Author:** [@cobo](https://discourse.paraview.org/u/cobo)\
**Replies:** 4\
**Last updated:** [September 29, 2018, 3:43pm UTC](https://discourse.paraview.org/t/failed-to-locate-property-issue-on-porting-from-5-5-to-5-6-rc2/651 "2018-09-29T15:43:11Z")

</div>

I am right now porting my “custom application” from being based on PV 5.5.0 to PV 5.6.0-RC2. Now I have a crash if I change the color coding for a render view by selecting another attribute from the combo box. I don’t h…

[Previous page](https://discourse.paraview.org/c/development/6.md?no_subcategories=false&page=35)

[Next page](https://discourse.paraview.org/c/development/6.md?no_subcategories=false&page=37)