# Development

**URL:** https://discourse.paraview.org/c/development/6.md?no_subcategories=false&page=31

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

**Page:** 32

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## [How to high light blocks, make them just like they are selected](https://discourse.paraview.org/t/how-to-high-light-blocks-make-them-just-like-they-are-selected/2599)

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**Author:** [@sharon](https://discourse.paraview.org/u/sharon)\
**Replies:** 3\
**Last updated:** [October 14, 2019, 1:55am UTC](https://discourse.paraview.org/t/how-to-high-light-blocks-make-them-just-like-they-are-selected/2599 "2019-10-14T01:55:30Z")

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Dear Experts, I want to high light some blocks and the desired the effect just like blocks are selected in paraview. But seems doing thing like selection is very heavy, is there any more elegant way to do so? I can re…

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## [ParFlow reader plugin for https://anaconda.org/conda-forge/paraview](https://discourse.paraview.org/t/parflow-reader-plugin-for-https-anaconda-org-conda-forge-paraview/2685)

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**Author:** [@hoangtv](https://discourse.paraview.org/u/hoangtv)\
**Replies:** 7\
**Last updated:** [October 9, 2019, 2:59am UTC](https://discourse.paraview.org/t/parflow-reader-plugin-for-https-anaconda-org-conda-forge-paraview/2685 "2019-10-09T02:59:37Z")

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Dear ParaView development team, My name is Hoang Tran, I’m trying to install paraview for conda. It has a vast of useful plugins! However, I would like to ask if you can help me to compile the ParFlow plugin for this m…

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## [active stereo and ParaView](https://discourse.paraview.org/t/active-stereo-and-paraview/1872)

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**Author:** [@utkarsh.ayachit](https://discourse.paraview.org/u/utkarsh.ayachit)\
**Replies:** 14\
**Last updated:** [October 8, 2019, 6:30pm UTC](https://discourse.paraview.org/t/active-stereo-and-paraview/1872 "2019-10-08T18:30:11Z")

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I’ve been playing with stereo support in ParaView for sometime now and here are some ideas to improve the UX. I wanted to get a feel for what people think. ParaView Qt client will always attempt to create an active-ste…

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## [Install headers for vtk modules build by ParaView 5.7.0](https://discourse.paraview.org/t/install-headers-for-vtk-modules-build-by-paraview-5-7-0/2721)

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**Author:** [@Charles\_Gueunet](https://discourse.paraview.org/u/Charles_Gueunet)\
**Replies:** 2\
**Last updated:** [October 8, 2019, 4:09pm UTC](https://discourse.paraview.org/t/install-headers-for-vtk-modules-build-by-paraview-5-7-0/2721 "2019-10-08T16:09:30Z")

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First, I have to say that I am looking for a good practice to get around a bug that made its way on the v5.7.0, but is now fixed here. I am developing a collection of VTK modules in a library. This library can be instal…

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## [Paraview compilation in Manjaro KDE 18.1.0](https://discourse.paraview.org/t/paraview-compilation-in-manjaro-kde-18-1-0/2717)

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**Author:** [@praphult](https://discourse.paraview.org/u/praphult)\
**Replies:** 3\
**Last updated:** [October 8, 2019, 7:02am UTC](https://discourse.paraview.org/t/paraview-compilation-in-manjaro-kde-18-1-0/2717 "2019-10-08T07:02:03Z")

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Hi, I was trying to compile Paraview from the Thirdparty folder of OpenFOAM-v1906. The build process always fails at 5% when it reaches the target QtTesting. I have attached the log file of the compilation process. Can…

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## [Is it possible to set Reader/Filter output port data TYPE dynamically?](https://discourse.paraview.org/t/is-it-possible-to-set-reader-filter-output-port-data-type-dynamically/2633)

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**Author:** [@ymjia](https://discourse.paraview.org/u/ymjia)\
**Replies:** 2\
**Last updated:** [October 8, 2019, 6:50am UTC](https://discourse.paraview.org/t/is-it-possible-to-set-reader-filter-output-port-data-type-dynamically/2633 "2019-10-08T06:50:14Z")

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Hi guys, I am writing a Reader for a specific file type. The content of a file may be a vtkPolyData, vtkUnstructuredGrid or list of thiese two types. So can I set output port data type at run time based on file conten…

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## [pvbatch core dump](https://discourse.paraview.org/t/pvbatch-core-dump/2714)

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**Author:** [@DanPar](https://discourse.paraview.org/u/DanPar)\
**Replies:** 5\
**Last updated:** [October 8, 2019, 3:52am UTC](https://discourse.paraview.org/t/pvbatch-core-dump/2714 "2019-10-08T03:52:32Z")

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Hi, I am working on Ubuntu 18.04 LTS with Paraview 5.7. I have saved my python script p.py while I was performing all my operations and saving screenshots. When i try to execute with pvbatch I got this error: termina…

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## [Compilation issue with imagedenoise on SUSE 11.3 and RHEL 6.10](https://discourse.paraview.org/t/compilation-issue-with-imagedenoise-on-suse-11-3-and-rhel-6-10/2671)

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**Author:** [@joeh](https://discourse.paraview.org/u/joeh)\
**Replies:** 3\
**Last updated:** [October 3, 2019, 2:56am UTC](https://discourse.paraview.org/t/compilation-issue-with-imagedenoise-on-suse-11-3-and-rhel-6-10/2671 "2019-10-03T02:56:38Z")

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I have found that on some of our older systems when the superbuild attempts to build openimagedenoise that one of the files is giving an error. superbuild/openimagedenoise/src/scripts/resource\_to\_cpp.py is failing on …

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## [XML specification questions for a filter](https://discourse.paraview.org/t/xml-specification-questions-for-a-filter/2641)

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**Author:** [@Andy\_Bauer](https://discourse.paraview.org/u/Andy_Bauer)\
**Replies:** 5\
**Last updated:** [October 2, 2019, 1:52pm UTC](https://discourse.paraview.org/t/xml-specification-questions-for-a-filter/2641 "2019-10-02T13:52:44Z")

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Hi, I recently modified the ParaView to have the Image Data to Uniform Grid filter be available in the GUI’s Filter’s menu. There’s a couple of issues with the XML configuration though. The biggest issue is that vtkGho…

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## [issue with SelectCells](https://discourse.paraview.org/t/issue-with-selectcells/2668)

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**Author:** [@jfavre](https://discourse.paraview.org/u/jfavre)\
**Replies:** 3\
**Last updated:** [October 2, 2019, 1:35pm UTC](https://discourse.paraview.org/t/issue-with-selectcells/2668 "2019-10-02T13:35:24Z")

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I am having an issue extracting data with the following code (Using PV5.7). SelectPoints() works fine. SelectCells() complains, although I can create an equivalent selection with 'Find Data". The error message is: ( 1…

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## [warning about old stuff in version 5.3 and 5.4](https://discourse.paraview.org/t/warning-about-old-stuff-in-version-5-3-and-5-4/2531)

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**Author:** [@jfavre](https://discourse.paraview.org/u/jfavre)\
**Replies:** 6\
**Last updated:** [October 2, 2019, 10:00am UTC](https://discourse.paraview.org/t/warning-about-old-stuff-in-version-5-3-and-5-4/2531 "2019-10-02T10:00:55Z")

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Hello all I am using 5.7-RC3 and am still getting warnings as shown below, when running pvbatch. I am not using that PLY reader in my script, so I do not know where this comes from. ( 14.284s) \[main thread \] …

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## [Error in finding a continuous curve for stress distribution along an arbitrary direction](https://discourse.paraview.org/t/error-in-finding-a-continuous-curve-for-stress-distribution-along-an-arbitrary-direction/2631)

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**Author:** [@Hamidreza](https://discourse.paraview.org/u/Hamidreza)\
**Replies:** 4\
**Last updated:** [September 27, 2019, 2:16pm UTC](https://discourse.paraview.org/t/error-in-finding-a-continuous-curve-for-stress-distribution-along-an-arbitrary-direction/2631 "2019-09-27T14:16:44Z")

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Dear all, I would like to calculate the values of stress along any arbitrary directions inside my model. However, for some angles, I cannot get a continuous curve, and I don’t know why. I’m uploading the two vtu. files …

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## [h5py support in ParaView](https://discourse.paraview.org/t/h5py-support-in-paraview/2638)

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**Author:** [@Loic](https://discourse.paraview.org/u/Loic)\
**Replies:** 1\
**Last updated:** [September 27, 2019, 12:34pm UTC](https://discourse.paraview.org/t/h5py-support-in-paraview/2638 "2019-09-27T12:34:56Z")

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Hi, I need to develop some custom filters to manipulate data stored in a HDF5 file. I’ve seen a very interesting post on Kitware Blog on that subject. It seems that this receipt cannot work with current official ParaV…

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## [running ParaView in virtual machine](https://discourse.paraview.org/t/running-paraview-in-virtual-machine/2624)

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**Author:** [@ftoth](https://discourse.paraview.org/u/ftoth)\
**Replies:** 4\
**Last updated:** [September 26, 2019, 2:42pm UTC](https://discourse.paraview.org/t/running-paraview-in-virtual-machine/2624 "2019-09-26T14:42:09Z")

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Hi, I’ve been using ParaView frequently in virtual machines without hardware OpenGL available. This worked fine using the --mesa options. Unfortunately they are broken in the 5.6.1 and 5.6.2 releases, and seem to bet no…

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## [Paraview Animations in Virtual Reality (VR)](https://discourse.paraview.org/t/paraview-animations-in-virtual-reality-vr/2626)

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**Author:** [@Christos](https://discourse.paraview.org/u/Christos)\
**Replies:** 0\
**Last updated:** [September 25, 2019, 9:30pm UTC](https://discourse.paraview.org/t/paraview-animations-in-virtual-reality-vr/2626 "2019-09-25T21:30:31Z")

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Hi All, do you have any updates regarding the OpenVR animation front? I have issues visualizing paraview animations with the HTC vive (Oculus had the same issue). When I try to play my animation the only think I can see…

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## [Errors with paraview-mesa in ParaView 5.7.0-RC2 for linux both superbuild built versions and with downloaded binary version](https://discourse.paraview.org/t/errors-with-paraview-mesa-in-paraview-5-7-0-rc2-for-linux-both-superbuild-built-versions-and-with-downloaded-binary-version/2453)

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**Author:** [@joeh](https://discourse.paraview.org/u/joeh)\
**Replies:** 37\
**Last updated:** [September 23, 2019, 1:16pm UTC](https://discourse.paraview.org/t/errors-with-paraview-mesa-in-paraview-5-7-0-rc2-for-linux-both-superbuild-built-versions-and-with-downloaded-binary-version/2453 "2019-09-23T13:16:23Z")

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Hi, I am having difficulty with paraview-mesa and the mesa superbuild version for ParaView 5.7.0-RC2, the installed directory for the superbuild version does not match the released binaries for 5.7.0-RC2 for linux. The…

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## [OSPRay colouring materials by scalar](https://discourse.paraview.org/t/ospray-colouring-materials-by-scalar/1846)

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**Author:** [@Daan\_van\_Vugt](https://discourse.paraview.org/u/Daan_van_Vugt)\
**Replies:** 12\
**Last updated:** [September 17, 2019, 8:49am UTC](https://discourse.paraview.org/t/ospray-colouring-materials-by-scalar/1846 "2019-09-17T08:49:10Z")

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Hi, I’m using VTK 8.2.0 and OSPRay 1.8.5 from python to show some particle traces (using the Tube filter). I’m having trouble transferring my colour map to the ray tracer. The particle traces remain black. Is there a …

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## [Update boost in common-superbuild?](https://discourse.paraview.org/t/update-boost-in-common-superbuild/2549)

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**Author:** [@aron.helser](https://discourse.paraview.org/u/aron.helser)\
**Replies:** 6\
**Last updated:** [September 16, 2019, 5:28pm UTC](https://discourse.paraview.org/t/update-boost-in-common-superbuild/2549 "2019-09-16T17:28:21Z")

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Hi all, In working on CMB superbuild, we’ve discovered that boost 1.70+ is recommended for compiling with Visual Studio 2019. Can we update boost in the common-superbuild, which would affect ParaView ? One of the motiv…

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## [New module system landing soon](https://discourse.paraview.org/t/new-module-system-landing-soon/1094)

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**Author:** [@ben.boeckel](https://discourse.paraview.org/u/ben.boeckel)\
**Replies:** 30\
**Last updated:** [September 16, 2019, 2:23am UTC](https://discourse.paraview.org/t/new-module-system-landing-soon/1094 "2019-09-16T02:23:31Z")

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Hi all, VTK’s side of the new module system is landing in the next week or so. ParaView will follow shortly after. The VTK announcement is here: https://public.kitware.com/pipermail/vtk-developers/2019-January/036648.h…

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## [C++: How to select an object in the pipeline browser](https://discourse.paraview.org/t/c-how-to-select-an-object-in-the-pipeline-browser/2401)

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**Author:** [@mvillegas](https://discourse.paraview.org/u/mvillegas)\
**Replies:** 1\
**Last updated:** [September 3, 2019, 8:48pm UTC](https://discourse.paraview.org/t/c-how-to-select-an-object-in-the-pipeline-browser/2401 "2019-09-03T20:48:10Z")

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Hello, this is likely very simple but I’ve decided to ask here after not being able to solve it. What I want to do is to mark an object in the pipeline browser as selected, given its pqPipelineSource pointer. I’m workin…

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## [ParaView v5.7 release date?](https://discourse.paraview.org/t/paraview-v5-7-release-date/2498)

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**Author:** [@nenad-vujicic](https://discourse.paraview.org/u/nenad-vujicic)\
**Replies:** 3\
**Last updated:** [September 3, 2019, 9:54pm UTC](https://discourse.paraview.org/t/paraview-v5-7-release-date/2498 "2019-09-03T21:54:52Z")

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Hello everyone, When do you expect to release v5.7? I noticed in Superbuild repository, new branch, v5.6.2 is created. What are risks of using current sources of v5.7 RC2 for releasing of our ParaView based software? Do…

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## [Help with Python Plugin Filter using VTKPythonAlgorithmBase approach](https://discourse.paraview.org/t/help-with-python-plugin-filter-using-vtkpythonalgorithmbase-approach/2503)

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**Author:** [@vchan1186](https://discourse.paraview.org/u/vchan1186)\
**Replies:** 8\
**Last updated:** [September 3, 2019, 7:34pm UTC](https://discourse.paraview.org/t/help-with-python-plugin-filter-using-vtkpythonalgorithmbase-approach/2503 "2019-09-03T19:34:11Z")

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I am trying to use the VTKPythonAlgorithmBase approach to create a custom filter plugin that will send the filter output back to the ParaView pipeline. I’ve adopted the “Half V Filter” example in the chapter 12.4 of the…

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## [CRASH--Loading space-delimited data](https://discourse.paraview.org/t/crash-loading-space-delimited-data/2494)

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**Author:** [@lwigdor](https://discourse.paraview.org/u/lwigdor)\
**Replies:** 0\
**Last updated:** [September 2, 2019, 1:55pm UTC](https://discourse.paraview.org/t/crash-loading-space-delimited-data/2494 "2019-09-02T13:55:32Z")

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I’m new to ParaView and what I tried to do caused the system to crash. I’m trying to load a data file (.txt) of space delimited numeric values. The displayed default field delimiter character is a single comma. I added…

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## [Modules and kits - what is the difference?](https://discourse.paraview.org/t/modules-and-kits-what-is-the-difference/2486)

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**Author:** [@cobo](https://discourse.paraview.org/u/cobo)\
**Replies:** 6\
**Last updated:** [August 31, 2019, 10:16am UTC](https://discourse.paraview.org/t/modules-and-kits-what-is-the-difference/2486 "2019-08-31T10:16:14Z")

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Looking through the reorganized build system of ParaView 5.7 RC2, I find modules (with specification files vtk.module) and kits (specified in vtk.kit files) - and the question arises about what is the difference? Because…

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## [Cell Data to Point Data issues](https://discourse.paraview.org/t/cell-data-to-point-data-issues/2485)

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**Author:** [@Andy\_Bauer](https://discourse.paraview.org/u/Andy_Bauer)\
**Replies:** 1\
**Last updated:** [August 29, 2019, 5:37pm UTC](https://discourse.paraview.org/t/cell-data-to-point-data-issues/2485 "2019-08-29T17:37:55Z")

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Hi, I’m using the Cell Data to Point Data filter in parallel with a rectilinear data set and it looks like it the Piece Invariant option isn’t working properly. It seems like the vtkPCellDataToPointData::RequestUpdateEx…

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## [PV Custom application version 5.7: Where are the PV plugins?](https://discourse.paraview.org/t/pv-custom-application-version-5-7-where-are-the-pv-plugins/2472)

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**Author:** [@cobo](https://discourse.paraview.org/u/cobo)\
**Replies:** 22\
**Last updated:** [August 29, 2019, 5:07pm UTC](https://discourse.paraview.org/t/pv-custom-application-version-5-7-where-are-the-pv-plugins/2472 "2019-08-29T17:07:43Z")

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Right now I am trying to port my PV “custom project” from being based on PV 5.6 to 5.7 - not the least because I like the improvements in project setup, with more modularity and transparency. And just because of that I d…

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## [Outline rendered as if it were cutting through another object](https://discourse.paraview.org/t/outline-rendered-as-if-it-were-cutting-through-another-object/2479)

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**Author:** [@bastian](https://discourse.paraview.org/u/bastian)\
**Replies:** 1\
**Last updated:** [August 28, 2019, 11:27am UTC](https://discourse.paraview.org/t/outline-rendered-as-if-it-were-cutting-through-another-object/2479 "2019-08-28T11:27:47Z")

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Dear developers, I sometimes get wrong representations of outlines such as shown below. Here, the box outlines do not actually run through any of those green things, but renderings sometimes give the impression that on…

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## [Autoload Plugin ...](https://discourse.paraview.org/t/autoload-plugin/1284)

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**Author:** [@Niklas](https://discourse.paraview.org/u/Niklas)\
**Replies:** 7\
**Last updated:** [August 26, 2019, 8:49am UTC](https://discourse.paraview.org/t/autoload-plugin/1284 "2019-08-26T08:49:33Z")

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Hi, there was probably a good reason why the Cmake options PARAVIEW\_AUTOLOAD\_PLUGIN\_XXX have been removed, but is there a work around to specify that certain plugins should be automatically loaded? If not, could it be b…

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## [\[HELP\] Python Plugin: How do I use vtkContourFilter / vtkGenericContourFilter?](https://discourse.paraview.org/t/help-python-plugin-how-do-i-use-vtkcontourfilter-vtkgenericcontourfilter/2438)

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**Author:** [@mhinderh](https://discourse.paraview.org/u/mhinderh)\
**Replies:** 4\
**Last updated:** [August 22, 2019, 11:45am UTC](https://discourse.paraview.org/t/help-python-plugin-how-do-i-use-vtkcontourfilter-vtkgenericcontourfilter/2438 "2019-08-22T11:45:02Z")

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Hey, I’m relatively new to Paraview, vtk and plugin development. I’ve been looking up and down the documentation but I don’t seem to get things to work. I need to write a plugin that has vtkImageData as input, alters t…

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## [PARAVIEW\_INSTALL DEVELOPMENT\_FILES still used in ParaView 5.7?](https://discourse.paraview.org/t/paraview-install-development-files-still-used-in-paraview-5-7/2456)

<div class="topic-metadata">

**Author:** [@Charles\_Gueunet](https://discourse.paraview.org/u/Charles_Gueunet)\
**Replies:** 3\
**Last updated:** [August 21, 2019, 11:49am UTC](https://discourse.paraview.org/t/paraview-install-development-files-still-used-in-paraview-5-7/2456 "2019-08-21T11:49:04Z")

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I would like to know if the option PARAVIEW\_INSTALL\_DEVELOPMENT\_FILES is still used in ParaView5.7. It seems it only adds some tests for ctest but has no real impact on the install process. So my questions are: Is thi…

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