# Development

**URL:** https://discourse.vtk.org/c/development/7.md?page=52

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

**Page:** 53

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## [Logging error messages for empty input data](https://discourse.vtk.org/t/logging-error-messages-for-empty-input-data/453)

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**Author:** [@lassoan](https://discourse.vtk.org/u/lassoan)\
**Replies:** 3\
**Last updated:** [March 13, 2019, 9:30pm UTC](https://discourse.vtk.org/t/logging-error-messages-for-empty-input-data/453 "2019-03-13T21:30:47Z")

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Some filters, such as vtkTransformPolyDataFilter, logs lots of No input data messages when the input polydata happens to be empty. These messages clutter the application log and causes significant performance drop. To a…

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## [Coverage still missing](https://discourse.vtk.org/t/coverage-still-missing/447)

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**Author:** [@lorensen](https://discourse.vtk.org/u/lorensen)\
**Replies:** 4\
**Last updated:** [March 12, 2019, 8:53pm UTC](https://discourse.vtk.org/t/coverage-still-missing/447 "2019-03-12T20:53:17Z")

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The coverage machine has a config error. Could someone please fix it? Could NOT find OpenVR (missing: OpenVR\_LIBRARY OpenVR\_INCLUDE\_DIR) CMake Error at CMake/vtkModule.cmake:3524 (message): Could not find the OpenVR e…

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## [Doxygen not working since new module API](https://discourse.vtk.org/t/doxygen-not-working-since-new-module-api/446)

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**Author:** [@lorensen](https://discourse.vtk.org/u/lorensen)\
**Replies:** 1\
**Last updated:** [March 12, 2019, 2:24pm UTC](https://discourse.vtk.org/t/doxygen-not-working-since-new-module-api/446 "2019-03-12T14:24:21Z")

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Folks, I’m pretty sure doxygen is broken since the recent module API changes. Can someone verify this? Bill

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## [Possible bug on vtkPolyDataConnectivityFilter](https://discourse.vtk.org/t/possible-bug-on-vtkpolydataconnectivityfilter/413)

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**Author:** [@kojikoby](https://discourse.vtk.org/u/kojikoby)\
**Replies:** 9\
**Last updated:** [March 8, 2019, 12:18am UTC](https://discourse.vtk.org/t/possible-bug-on-vtkpolydataconnectivityfilter/413 "2019-03-08T00:18:50Z")

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Hi, I am using VTK for medical applications, and encounter a possible bug on vtkPolyConnectivityFilter. I use the function to generate an STL from only the largest connected region. I doubt the spacing parameter of VTK …

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## [Invalid framebuffer operation](https://discourse.vtk.org/t/invalid-framebuffer-operation/403)

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**Author:** [@hmxhiu](https://discourse.vtk.org/u/hmxhiu)\
**Replies:** 1\
**Last updated:** [March 6, 2019, 2:44am UTC](https://discourse.vtk.org/t/invalid-framebuffer-operation/403 "2019-03-06T02:44:01Z")

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Hi all, I’m currently having the following error while running VTK8.2 on the new Mac Mini 2018: ERROR: /VTK-8.2.0/Rendering/OpenGL2/vtkOpenGLImageSliceMapper.cxx, line 485 vtkOpenGLImageSliceMapper: failed after Rend…

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## [proj.4 6.1.0 compatibility?](https://discourse.vtk.org/t/proj-4-6-1-0-compatibility/397)

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**Author:** [@jiapei100](https://discourse.vtk.org/u/jiapei100)\
**Replies:** 1\
**Last updated:** [March 4, 2019, 6:44pm UTC](https://discourse.vtk.org/t/proj-4-6-1-0-compatibility/397 "2019-03-04T18:44:18Z")

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I’m trying to build VTK git of the day Mar. 4, 2019. It looks to me there is a small bug in file pj\_errno.c? ....../VTK/ThirdParty/libproj/vtklibproj/src/pj\_errno.c:5:17: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘\_\_attr…

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## [modules.json - Request for enhancement](https://discourse.vtk.org/t/modules-json-request-for-enhancement/318)

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**Author:** [@amaclean](https://discourse.vtk.org/u/amaclean)\
**Replies:** 2\
**Last updated:** [March 1, 2019, 9:18pm UTC](https://discourse.vtk.org/t/modules-json-request-for-enhancement/318 "2019-03-01T21:18:16Z")

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@ben.boeckel it would be nice to add includes into modules.json. How much work would be entailed in adding a list of includes to this file for each module? As an example, the module VTK::CommonColor would then look som…

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## [vtkSortDataArray sorts keys array](https://discourse.vtk.org/t/vtksortdataarray-sorts-keys-array/356)

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**Author:** [@Patrick\_Laurin](https://discourse.vtk.org/u/Patrick_Laurin)\
**Replies:** 2\
**Last updated:** [March 1, 2019, 4:59pm UTC](https://discourse.vtk.org/t/vtksortdataarray-sorts-keys-array/356 "2019-03-01T16:59:30Z")

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Hi, I’ve been using the following method to sort an array of values in the same order as my key array: static void vtkSortDataArray::Sort(vtkAbstractArray\* keys,vtkAbstractArray\* values) My “keys” array is not sorted …

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## [A slew of OpenGL errors reported in VTK version 8.2.0, static libs, Windows](https://discourse.vtk.org/t/a-slew-of-opengl-errors-reported-in-vtk-version-8-2-0-static-libs-windows/329)

<div class="topic-metadata">

**Author:** [@jmcauley](https://discourse.vtk.org/u/jmcauley)\
**Replies:** 6\
**Last updated:** [March 1, 2019, 1:24pm UTC](https://discourse.vtk.org/t/a-slew-of-opengl-errors-reported-in-vtk-version-8-2-0-static-libs-windows/329 "2019-03-01T13:24:54Z")

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I used -DBUILD\_SHARED\_LIBS:BOOL=“0” to build a static lib version of 8.2.0 I built debug libs using Visual Studio 2017. I used the cmake-gui to configure, generate, and open the generated solution and built the libs usi…

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## [removing added texture from actor](https://discourse.vtk.org/t/removing-added-texture-from-actor/137)

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**Author:** [@pettaa123](https://discourse.vtk.org/u/pettaa123)\
**Replies:** 2\
**Last updated:** [February 27, 2019, 8:10pm UTC](https://discourse.vtk.org/t/removing-added-texture-from-actor/137 "2019-02-27T20:10:23Z")

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Hi there, i would like to remove a texture from an actor. I added the texture before, but dont know how to remove it then. cheers Peter

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## [VTKRenderWindow Render() crashes with Abort 6 on mac mini 2018](https://discourse.vtk.org/t/vtkrenderwindow-render-crashes-with-abort-6-on-mac-mini-2018/315)

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**Author:** [@benjaminhon](https://discourse.vtk.org/u/benjaminhon)\
**Replies:** 2\
**Last updated:** [February 25, 2019, 4:47am UTC](https://discourse.vtk.org/t/vtkrenderwindow-render-crashes-with-abort-6-on-mac-mini-2018/315 "2019-02-25T04:47:05Z")

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Hi All, Has anyone experienced this issue? I’ve narrowed the issue down to the Render call. It works totally fine on my old mac and macbook, but has issues with the mac mini 2018 and the new macbook pros. I am guessing …

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## [Doxygen after Module API changes](https://discourse.vtk.org/t/doxygen-after-module-api-changes/299)

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**Author:** [@lorensen](https://discourse.vtk.org/u/lorensen)\
**Replies:** 0\
**Last updated:** [February 19, 2019, 8:23pm UTC](https://discourse.vtk.org/t/doxygen-after-module-api-changes/299 "2019-02-19T20:23:41Z")

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Folks, It looks like the doxygen generation stuff references module.cmake from the old Module API. Bill

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## [Why is vtkTimerLog Gone?](https://discourse.vtk.org/t/why-is-vtktimerlog-gone/286)

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**Author:** [@lorensen](https://discourse.vtk.org/u/lorensen)\
**Replies:** 2\
**Last updated:** [February 17, 2019, 12:34am UTC](https://discourse.vtk.org/t/why-is-vtktimerlog-gone/286 "2019-02-17T00:34:01Z")

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The subject says it all.

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## [VTK 8.90 and modules.json](https://discourse.vtk.org/t/vtk-8-90-and-modules-json/213)

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**Author:** [@amaclean](https://discourse.vtk.org/u/amaclean)\
**Replies:** 4\
**Last updated:** [February 14, 2019, 2:36pm UTC](https://discourse.vtk.org/t/vtk-8-90-and-modules-json/213 "2019-02-14T14:36:50Z")

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There is a very nice JSON file generated called modules.json, in the top-level build directory of VTK. It gives a lot of information about modules selected and their dependencies etc., here is a little Python script I p…

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## [Version is repeated in the Linux library .so.0 files](https://discourse.vtk.org/t/version-is-repeated-in-the-linux-library-so-0-files/266)

<div class="topic-metadata">

**Author:** [@amaclean](https://discourse.vtk.org/u/amaclean)\
**Replies:** 3\
**Last updated:** [February 14, 2019, 7:19am UTC](https://discourse.vtk.org/t/version-is-repeated-in-the-linux-library-so-0-files/266 "2019-02-14T07:19:33Z")

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Why is 8.90 duplicated in the name: libvtkCommonColor-8.90.so.8.90.0? I would have expected libvtkCommonColor-8.90.so.0. It is not just libvtkCommonColor following this naming scheme: libvtk\*-8.90.so.8.90.0 Here are t…

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## [Errors during compilation of VTK 7.1.1 and 8.2 using VS2017](https://discourse.vtk.org/t/errors-during-compilation-of-vtk-7-1-1-and-8-2-using-vs2017/269)

<div class="topic-metadata">

**Author:** [@LvR](https://discourse.vtk.org/u/LvR)\
**Replies:** 0\
**Last updated:** [February 13, 2019, 12:04pm UTC](https://discourse.vtk.org/t/errors-during-compilation-of-vtk-7-1-1-and-8-2-using-vs2017/269 "2019-02-13T12:04:11Z")

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Last month I switched to Visual Studio 2017. So I also switched from VTK7.1 to VTK 8.2. But after trying several settings in CMake, I did not manage to compile VTK 8.2 successfully. So I switched back to VTK 7.1.1. But …

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## [Did VTK\_CUSTOM\_LIBRARY\_SUFFIX build option go away?](https://discourse.vtk.org/t/did-vtk-custom-library-suffix-build-option-go-away/220)

<div class="topic-metadata">

**Author:** [@seanm](https://discourse.vtk.org/u/seanm)\
**Replies:** 3\
**Last updated:** [February 13, 2019, 9:47am UTC](https://discourse.vtk.org/t/did-vtk-custom-library-suffix-build-option-go-away/220 "2019-02-13T09:47:05Z")

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Hi all, Did the VTK\_CUSTOM\_LIBRARY\_SUFFIX option go away? I created a new folder and used cmake to configure VTK (git master), but even in ‘advanced mode’ I don’t see it there. Cheers,

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## [vtkLogging static cast error](https://discourse.vtk.org/t/vtklogging-static-cast-error/234)

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**Author:** [@amaclean](https://discourse.vtk.org/u/amaclean)\
**Replies:** 6\
**Last updated:** [February 7, 2019, 10:21pm UTC](https://discourse.vtk.org/t/vtklogging-static-cast-error/234 "2019-02-07T22:21:50Z")

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@utkarshayachit I’m seeing this casting error: Common/Core/vtkLogger.cxx: In static member function ‘static vtkLogger\* vtkLogger::New()’: Common/Core/vtkObjectFactory.h:339:39: error: invalid static\_cast from type ‘vtkO…

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## [GCC 8.2 Warning in Testing](https://discourse.vtk.org/t/gcc-8-2-warning-in-testing/222)

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**Author:** [@lorensen](https://discourse.vtk.org/u/lorensen)\
**Replies:** 1\
**Last updated:** [February 5, 2019, 7:06pm UTC](https://discourse.vtk.org/t/gcc-8-2-warning-in-testing/222 "2019-02-05T19:06:21Z")

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Folks, The following warnings are present with the gcc 8.2 compiler. They occur in the test cxx files. Building CXX object Common/Core/Testing/Cxx/CMakeFiles/vtkCommonCoreCxxTests.dir/vtkCommonCoreCxxTests.cxx.o In …

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## [Dicom and three planes](https://discourse.vtk.org/t/dicom-and-three-planes/205)

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**Author:** [@jdanvals](https://discourse.vtk.org/u/jdanvals)\
**Replies:** 2\
**Last updated:** [February 4, 2019, 12:23pm UTC](https://discourse.vtk.org/t/dicom-and-three-planes/205 "2019-02-04T12:23:12Z")

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Hello, i trying to create dicom viewer with three planes like in photo I find example - Medical/MedicalDemo3/ - but it in 3d style. Another example to difficult for me https://vtk.org/gitweb?p=VTK.git;a=blob;f=Examples…

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## [VTK 8.90 missing vtkGUISupportQt\_LOADED](https://discourse.vtk.org/t/vtk-8-90-missing-vtkguisupportqt-loaded/145)

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**Author:** [@amaclean](https://discourse.vtk.org/u/amaclean)\
**Replies:** 11\
**Last updated:** [January 28, 2019, 3:13pm UTC](https://discourse.vtk.org/t/vtk-8-90-missing-vtkguisupportqt-loaded/145 "2019-01-28T15:13:54Z")

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I am building VTKExamples standalone and I have noticed that I am getting the message: “VTKWikiExamples: Not building Qt examples” There is no variable vtkGUISupportQt\_LOADED being set in the VTK build. I changed VTK\_G…

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