# Latest

**URL:** https://discourse.vtk.org/latest.md?page=226

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

**Page:** 227

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## [LINK : fatal error LNK1102: out of memory \[AcceleratorsVTKm.vcxproj\]](https://discourse.vtk.org/t/link-fatal-error-lnk1102-out-of-memory-acceleratorsvtkm-vcxproj/2501)

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**Author:** [@sharon](https://discourse.vtk.org/u/sharon)\
**Replies:** 3\
**Last updated:** [January 29, 2020, 3:40am UTC](https://discourse.vtk.org/t/link-fatal-error-lnk1102-out-of-memory-acceleratorsvtkm-vcxproj/2501 "2020-01-29T03:40:34Z")

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Dear Experts: After i enable “VTK\_SMP\_IMPLEMENTATION\_TYPE=TBB”, in debug build mode, there will have below error: LINK : fatal error LNK1102: out of memory \[VTK\\Accelerators\\Vtkm\\AcceleratorsVTKm.vcxproj\] My Questions…

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## [vtkInteractorStyleFlight: hack it to be usable?](https://discourse.vtk.org/t/vtkinteractorstyleflight-hack-it-to-be-usable/2509)

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**Author:** [@banesullivan](https://discourse.vtk.org/u/banesullivan)\
**Replies:** 1\
**Last updated:** [January 28, 2020, 7:38pm UTC](https://discourse.vtk.org/t/vtkinteractorstyleflight-hack-it-to-be-usable/2509 "2020-01-28T19:38:37Z")

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Does anyone have experience using the vtkInteractorStyleFlight? It appears to not really work (no key bindings do anything) but the mouse click events will move the camera, you just cannot see where until you let off the…

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## ["Solidification algorithm" with fill holes filter issue -- Python](https://discourse.vtk.org/t/solidification-algorithm-with-fill-holes-filter-issue-python/2508)

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**Author:** [@pierrou28](https://discourse.vtk.org/u/pierrou28)\
**Replies:** 2\
**Last updated:** [January 28, 2020, 3:22pm UTC](https://discourse.vtk.org/t/solidification-algorithm-with-fill-holes-filter-issue-python/2508 "2020-01-28T15:22:13Z")

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Hello everyone, I’m new to VTK, I want to create a “Solidification Algorithm” to close a surface using Fill Holes Filter. My problem is that the filter seems to be apply only on each polydata even after the merge. I’v…

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## [Disabling Camera Roll](https://discourse.vtk.org/t/disabling-camera-roll/2506)

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**Author:** [@ChristopherWaters](https://discourse.vtk.org/u/ChristopherWaters)\
**Replies:** 0\
**Last updated:** [January 28, 2020, 8:48am UTC](https://discourse.vtk.org/t/disabling-camera-roll/2506 "2020-01-28T08:48:39Z")

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Current Situation: I am using an implmentation of vtkInteractorStyleTrackballCamera for my interator/camera. I want the camera to only adjust it’s Yaw/Pitch when rotated by the user Question: What would be the best …

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## [OpenGL error occurs in Ubuntu with Qt and VTK](https://discourse.vtk.org/t/opengl-error-occurs-in-ubuntu-with-qt-and-vtk/2465)

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**Author:** [@Pooja](https://discourse.vtk.org/u/Pooja)\
**Replies:** 8\
**Last updated:** [January 28, 2020, 5:23am UTC](https://discourse.vtk.org/t/opengl-error-occurs-in-ubuntu-with-qt-and-vtk/2465 "2020-01-28T05:23:57Z")

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Hello, I tried loading of DICOM data example from in QT application using VTK in Ubuntu system. I have VTK 8.2.0 and Qt 5.13.1 installed on Ubuntu system. Compiling and building of this example was successful. But…

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## [Job opportunity: Kitware France is hiring](https://discourse.vtk.org/t/job-opportunity-kitware-france-is-hiring/2505)

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**Author:** [@JPouderoux](https://discourse.vtk.org/u/JPouderoux)\
**Replies:** 0\
**Last updated:** [January 27, 2020, 9:08pm UTC](https://discourse.vtk.org/t/job-opportunity-kitware-france-is-hiring/2505 "2020-01-27T21:08:25Z")

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Kitware SAS, located in Lyon, France has job opportunities related to VTK and visualization. Please visit the link below for more information.

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## [Extract Voxel Information From vtkVoxelModeller](https://discourse.vtk.org/t/extract-voxel-information-from-vtkvoxelmodeller/2492)

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**Author:** [@chris](https://discourse.vtk.org/u/chris)\
**Replies:** 3\
**Last updated:** [January 27, 2020, 7:41pm UTC](https://discourse.vtk.org/t/extract-voxel-information-from-vtkvoxelmodeller/2492 "2020-01-27T19:41:58Z")

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Hey at all, i’m new here and i don’t know if this is the right place for my question. But i googled now for several days and can’t find a solution. So i’m stuck without help … My task is to (3D)-voxel a simple mesh and…

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## [Docs for python wrapper](https://discourse.vtk.org/t/docs-for-python-wrapper/2497)

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**Author:** [@JDJD](https://discourse.vtk.org/u/JDJD)\
**Replies:** 3\
**Last updated:** [January 27, 2020, 7:12pm UTC](https://discourse.vtk.org/t/docs-for-python-wrapper/2497 "2020-01-27T19:12:30Z")

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Does anyone know where I can find the docs for the VTK Python wrapper? I can only find docs for the C++ version and installation instructions for the python wrapper!

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## [How to use the raycasting on 3d object to get 2D image?](https://discourse.vtk.org/t/how-to-use-the-raycasting-on-3d-object-to-get-2d-image/2503)

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**Author:** [@Fedia](https://discourse.vtk.org/u/Fedia)\
**Replies:** 1\
**Last updated:** [January 27, 2020, 3:36pm UTC](https://discourse.vtk.org/t/how-to-use-the-raycasting-on-3d-object-to-get-2d-image/2503 "2020-01-27T15:36:05Z")

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Gd morning plz any one can help me to use the raycasting on 3d object to get 2D image? thnx

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## [Custom ParticleReader?](https://discourse.vtk.org/t/custom-particlereader/2473)

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**Author:** [@Ahmed\_Salih](https://discourse.vtk.org/u/Ahmed_Salih)\
**Replies:** 2\
**Last updated:** [January 26, 2020, 3:30pm UTC](https://discourse.vtk.org/t/custom-particlereader/2473 "2020-01-26T15:30:25Z")

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Hello! I am new to this forum and new to C programming in general, but having a lot of fun, so please bear with me. Currently I am working with this great example: https://lorensen.github.io/VTKExamples/site/Cxx/IO/Pa…

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## [Reading and writing side and node sets](https://discourse.vtk.org/t/reading-and-writing-side-and-node-sets/2498)

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**Author:** [@dcthomp](https://discourse.vtk.org/u/dcthomp)\
**Replies:** 5\
**Last updated:** [January 25, 2020, 10:59pm UTC](https://discourse.vtk.org/t/reading-and-writing-side-and-node-sets/2498 "2020-01-25T22:59:09Z")

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Hi all, but especially @TJ\_Corona, @utkarshayachit, @cory.quammen, and @wascott, One thing that has come up as @Andrew works on cmb/aeva support for MED files is the notion of side and node sets, which are also present…

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## [Extract a set of contours from binarylabelMaps](https://discourse.vtk.org/t/extract-a-set-of-contours-from-binarylabelmaps/2495)

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**Author:** [@Nina](https://discourse.vtk.org/u/Nina)\
**Replies:** 6\
**Last updated:** [January 25, 2020, 6:14pm UTC](https://discourse.vtk.org/t/extract-a-set-of-contours-from-binarylabelmaps/2495 "2020-01-25T18:14:23Z")

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Hi; In fact I want to develop a new method which reconstruct a 3D surface Model from a set of contours using implicit models. For the entry I have Brain MRI images stored in DICOM format. When using segment editor to …

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## [CT volume image orientation correction](https://discourse.vtk.org/t/ct-volume-image-orientation-correction/2490)

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**Author:** [@srbn.ghosh99](https://discourse.vtk.org/u/srbn.ghosh99)\
**Replies:** 3\
**Last updated:** [January 25, 2020, 12:45pm UTC](https://discourse.vtk.org/t/ct-volume-image-orientation-correction/2490 "2020-01-25T12:45:39Z")

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Hi, I have a large set of ct images of heart. The ct volumes created from the image set need to be processed. But before processing, I need to check the orientation of each volume to see the long axis of the heart point…

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## [How to select Serial/TBB/CUDA devices when using the vtkm Accelerators in vtk?](https://discourse.vtk.org/t/how-to-select-serial-tbb-cuda-devices-when-using-the-vtkm-accelerators-in-vtk/2487)

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**Author:** [@scotsman60](https://discourse.vtk.org/u/scotsman60)\
**Replies:** 5\
**Last updated:** [January 25, 2020, 12:02pm UTC](https://discourse.vtk.org/t/how-to-select-serial-tbb-cuda-devices-when-using-the-vtkm-accelerators-in-vtk/2487 "2020-01-25T12:02:02Z")

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Hello, I’m using the vtkm Accelerators in vtk but I can’t find a way to select which device (Serial/TBB/Cuda) the filters should use. In vtkm I use the following approach (The code snipped below shows how I select the …

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## [Seed widget with custom callback to get coordinates of dicom images](https://discourse.vtk.org/t/seed-widget-with-custom-callback-to-get-coordinates-of-dicom-images/2484)

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**Author:** [@Pooja](https://discourse.vtk.org/u/Pooja)\
**Replies:** 1\
**Last updated:** [January 25, 2020, 11:50am UTC](https://discourse.vtk.org/t/seed-widget-with-custom-callback-to-get-coordinates-of-dicom-images/2484 "2020-01-25T11:50:31Z")

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Hello, I need to get coordinates of dicom image using VTK and QT. I tried SeedWidgetWithCustomCallback example from VTK examples. It gives me x, y coordinates of QWidget render window (OVTKWidget or QVTKOpengl). My di…

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## [Seed Widget and Seed Representation](https://discourse.vtk.org/t/seed-widget-and-seed-representation/2475)

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**Author:** [@MarKara](https://discourse.vtk.org/u/MarKara)\
**Replies:** 2\
**Last updated:** [January 25, 2020, 1:51am UTC](https://discourse.vtk.org/t/seed-widget-and-seed-representation/2475 "2020-01-25T01:51:06Z")

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Hi vtk users and developers I’m using Seed widget to create and move points around. The problem is point picking after they are created. If I have two points close next to each other (they don’t overlap) and press on th…

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## [How to create the vtk.exe](https://discourse.vtk.org/t/how-to-create-the-vtk-exe/2482)

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**Author:** [@Johnny](https://discourse.vtk.org/u/Johnny)\
**Replies:** 11\
**Last updated:** [January 24, 2020, 6:25pm UTC](https://discourse.vtk.org/t/how-to-create-the-vtk-exe/2482 "2020-01-24T18:25:31Z")

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How to create the vtk.exe, I just show the .tcl file, there is no any tips to show how to create the vtk.exe?

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## [Receive the click-event made on a ControlPoint defining a ColorTransferFunction](https://discourse.vtk.org/t/receive-the-click-event-made-on-a-controlpoint-defining-a-colortransferfunction/2486)

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**Author:** [@MissMac](https://discourse.vtk.org/u/MissMac)\
**Replies:** 0\
**Last updated:** [January 23, 2020, 2:36pm UTC](https://discourse.vtk.org/t/receive-the-click-event-made-on-a-controlpoint-defining-a-colortransferfunction/2486 "2020-01-23T14:36:29Z")

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Hello there, I would like to be able to perform different tasks, depending on how the user clicks on a control point used define a ColorTransferfunction in a XYChart? Adding an Observer works to receive the CurrentPoin…

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## [Tetrahedra intersection](https://discourse.vtk.org/t/tetrahedra-intersection/2479)

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**Author:** [@Fabio](https://discourse.vtk.org/u/Fabio)\
**Replies:** 3\
**Last updated:** [January 22, 2020, 4:39pm UTC](https://discourse.vtk.org/t/tetrahedra-intersection/2479 "2020-01-22T16:39:12Z")

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Hi, how can I intersect two tetrahedra with vtk? (if it is possible …)

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## [vtk.js example](https://discourse.vtk.org/t/vtk-js-example/2462)

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**Author:** [@snehal](https://discourse.vtk.org/u/snehal)\
**Replies:** 2\
**Last updated:** [January 22, 2020, 8:23am UTC](https://discourse.vtk.org/t/vtk-js-example/2462 "2020-01-22T08:23:14Z")

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I have attached VolumeMapper.html file. I am trying to execute on browser but i got the error GET http://localhost:8080/webapp/anyfilename.vti/index.json 404 (Not Found) I referred https://kitware.github.io/vtk-js/exam…

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## [Can I set a surface thickness just like the solidify in blender software?](https://discourse.vtk.org/t/can-i-set-a-surface-thickness-just-like-the-solidify-in-blender-software/2458)

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**Author:** [@3dprintingdoctor](https://discourse.vtk.org/u/3dprintingdoctor)\
**Replies:** 3\
**Last updated:** [January 20, 2020, 11:26pm UTC](https://discourse.vtk.org/t/can-i-set-a-surface-thickness-just-like-the-solidify-in-blender-software/2458 "2020-01-20T23:26:56Z")

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Can I set a surface thickness just like the solidify in blender software?

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## [Getting original image coordinates from vtkimagereslice output](https://discourse.vtk.org/t/getting-original-image-coordinates-from-vtkimagereslice-output/2123)

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**Author:** [@Sateesh.m](https://discourse.vtk.org/u/Sateesh.m)\
**Replies:** 1\
**Last updated:** [January 20, 2020, 9:40pm UTC](https://discourse.vtk.org/t/getting-original-image-coordinates-from-vtkimagereslice-output/2123 "2020-01-20T21:40:11Z")

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Hi, My goal is to get the coordinates of image after using vtkresliceimage. My steps: Used vtkresliceimageviewer to display images in axial, sagittal, coronal orientation. Using vtkimagereslice class outputs from…

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## [How can I split a polyline into its linear segments?](https://discourse.vtk.org/t/how-can-i-split-a-polyline-into-its-linear-segments/2434)

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**Author:** [@normanius](https://discourse.vtk.org/u/normanius)\
**Replies:** 6\
**Last updated:** [January 20, 2020, 8:12pm UTC](https://discourse.vtk.org/t/how-can-i-split-a-polyline-into-its-linear-segments/2434 "2020-01-20T20:12:51Z")

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A simple question that hopefully can be answered with a single link: How to split a polyline into its n linear segments? Let’s be given a polyline like the one that results from the PolyLine example. Is there a vtk fil…

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## [How to configure cmake to include Accelerators?](https://discourse.vtk.org/t/how-to-configure-cmake-to-include-accelerators/2452)

<div class="topic-metadata">

**Author:** [@scotsman60](https://discourse.vtk.org/u/scotsman60)\
**Replies:** 7\
**Last updated:** [January 20, 2020, 7:53pm UTC](https://discourse.vtk.org/t/how-to-configure-cmake-to-include-accelerators/2452 "2020-01-20T19:53:59Z")

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I’m trying to use the vtkm accelerators in my VS2017 project but I’m having difficulty figuring out how to configure cmake… Background, I built vtk from a git clone of master and include the Accelerators and TBB. Thi…

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## [Internal Compiler Error building vtk on Windows](https://discourse.vtk.org/t/internal-compiler-error-building-vtk-on-windows/2423)

<div class="topic-metadata">

**Author:** [@scotsman60](https://discourse.vtk.org/u/scotsman60)\
**Replies:** 8\
**Last updated:** [January 20, 2020, 7:40pm UTC](https://discourse.vtk.org/t/internal-compiler-error-building-vtk-on-windows/2423 "2020-01-20T19:40:19Z")

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Hello, I am building vtk from git clone on Windows using VS2017 and I’m getting a ‘C1001 - An internal compiler error has occurred in the compiler’ error in tracer.hpp while building the IOMotionFX project. The error …

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## [Setting camera direction of projection (position) to have slices like in 3d slicer](https://discourse.vtk.org/t/setting-camera-direction-of-projection-position-to-have-slices-like-in-3d-slicer/2466)

<div class="topic-metadata">

**Author:** [@Andrzej\_Marciniak](https://discourse.vtk.org/u/Andrzej_Marciniak)\
**Replies:** 0\
**Last updated:** [January 20, 2020, 6:16pm UTC](https://discourse.vtk.org/t/setting-camera-direction-of-projection-position-to-have-slices-like-in-3d-slicer/2466 "2020-01-20T18:16:27Z")

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Hi, I am writing MRI browser and I am trying to set camera projection perpendicular to IJK planes in vtk-js (camera in parallel mode). I am using only vtkImageData direction matrix to calculate slicing modes and camera…

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## [Update vtkSelectVisiblePoints filter](https://discourse.vtk.org/t/update-vtkselectvisiblepoints-filter/2454)

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**Author:** [@michael23](https://discourse.vtk.org/u/michael23)\
**Replies:** 2\
**Last updated:** [January 20, 2020, 11:26am UTC](https://discourse.vtk.org/t/update-vtkselectvisiblepoints-filter/2454 "2020-01-20T11:26:25Z")

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Hello, I am using vtkSelectVisiblePoints and vtkLabeledDataMapper to label visible points. Unfortunately, the labels actor with the vtkSelectVisiblePoints filter must be added last to the renderer in order to get the c…

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## [Transparency in vtkPolyData (actor, RGBA) results in invisible renderings in Qt app (VTK 8.1.2)](https://discourse.vtk.org/t/transparency-in-vtkpolydata-actor-rgba-results-in-invisible-renderings-in-qt-app-vtk-8-1-2/2424)

<div class="topic-metadata">

**Author:** [@Sophonet](https://discourse.vtk.org/u/Sophonet)\
**Replies:** 4\
**Last updated:** [January 20, 2020, 9:48am UTC](https://discourse.vtk.org/t/transparency-in-vtkpolydata-actor-rgba-results-in-invisible-renderings-in-qt-app-vtk-8-1-2/2424 "2020-01-20T09:48:27Z")

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Hi VTK team, using VTK 8.1.2 and Qt 5.14 (or earlier versions?), rendering semi-transparent meshes seems to be an issue… When adding an RGBA cell array with transparency to our PolyData object or (alternatively) sett…

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## [Can I calculate the normal of a closed area](https://discourse.vtk.org/t/can-i-calculate-the-normal-of-a-closed-area/2457)

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**Author:** [@3dprintingdoctor](https://discourse.vtk.org/u/3dprintingdoctor)\
**Replies:** 0\
**Last updated:** [January 20, 2020, 4:00am UTC](https://discourse.vtk.org/t/can-i-calculate-the-normal-of-a-closed-area/2457 "2020-01-20T04:00:13Z")

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Can I calculate the normal of a closed 3d area. Such as the picked area from a sphere.

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## [models and NRRD files exported from Slicer don't align in vtkjs/itk](https://discourse.vtk.org/t/models-and-nrrd-files-exported-from-slicer-dont-align-in-vtkjs-itk/2440)

<div class="topic-metadata">

**Author:** [@mhalle](https://discourse.vtk.org/u/mhalle)\
**Replies:** 11\
**Last updated:** [January 19, 2020, 8:59pm UTC](https://discourse.vtk.org/t/models-and-nrrd-files-exported-from-slicer-dont-align-in-vtkjs-itk/2440 "2020-01-19T20:59:42Z")

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I have NRRD files from which models have been generated in Slicer, in register. I read them into vtkjs using vtkITKImageReader, ImageMapper, and ImageSlice, following the appropriate example vtkjs code. The slices and …

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