# Support **URL:** https://discourse.vtk.org/c/support/6.md?page=99 [Latest](https://discourse.vtk.org/latest.md) · [Categories](https://discourse.vtk.org/categories.md) · [Tags](https://discourse.vtk.org/tags.md) **Page:** 100 --- ## [GUISupportQtQuickCxx Failed Error regular expression found in output. Regex=\[Failed Image Test\]](https://discourse.vtk.org/t/guisupportqtquickcxx-failed-error-regular-expression-found-in-output-regex-failed-image-test/6303)
**Author:** [@eton](https://discourse.vtk.org/u/eton)\ **Replies:** 4\ **Last updated:** [August 6, 2021, 1:19pm UTC](https://discourse.vtk.org/t/guisupportqtquickcxx-failed-error-regular-expression-found-in-output-regex-failed-image-test/6303 "2021-08-06T13:19:33Z")
Hi, everyone, I build vtk master on ubuntu2004 with Qt5.15.2(install with Qt’s online .run file). when i run ctest I get error message like below. anyone would like get me some advice to dig out why it wrong? very thank… --- ## [RogueResearch buildbots errors](https://discourse.vtk.org/t/rogueresearch-buildbots-errors/6307)
**Author:** [@seanm](https://discourse.vtk.org/u/seanm)\ **Replies:** 4\ **Last updated:** [August 6, 2021, 6:32am UTC](https://discourse.vtk.org/t/rogueresearch-buildbots-errors/6307 "2021-08-06T06:32:09Z")
So I’ve just done a bit of triage on my vtk cdash submissions and there are lots of new errors & warnings there that should be fixed. It would take me most of a day to git blame every one of them and contact the person … --- ## [build success but test failed based on master with Qt5.15.2 on ubuntu2004](https://discourse.vtk.org/t/build-success-but-test-failed-based-on-master-with-qt5-15-2-on-ubuntu2004/6298)
**Author:** [@eton](https://discourse.vtk.org/u/eton)\ **Replies:** 5\ **Last updated:** [August 6, 2021, 1:55am UTC](https://discourse.vtk.org/t/build-success-but-test-failed-based-on-master-with-qt5-15-2-on-ubuntu2004/6298 "2021-08-06T01:55:19Z")
Hi, there. I build the vtk source on branch master with Qt5.15.2 on ubuntu2004. when I run the test app, it failed like below information. anyone know how can I make the test run successful? very thanks. eton@9u:… --- ## [vtkCellLocator - line intersection(end point of the line)](https://discourse.vtk.org/t/vtkcelllocator-line-intersection-end-point-of-the-line/6295)
**Author:** [@Hyunwoo\_Kim](https://discourse.vtk.org/u/Hyunwoo_Kim)\ **Replies:** 1\ **Last updated:** [August 5, 2021, 10:44am UTC](https://discourse.vtk.org/t/vtkcelllocator-line-intersection-end-point-of-the-line/6295 "2021-08-05T10:44:13Z")
Hi, I’m trying to find an intersected point on a poly date with a line. one of end points of the line is the triangle’s vertex. I want to do not consider the triangle’s vertex as an intersected point. As below, S… --- ## [Problem in SetInputConnection.](https://discourse.vtk.org/t/problem-in-setinputconnection/6290)
**Author:** [@Luis\_Carlos\_Carneiro](https://discourse.vtk.org/u/Luis_Carlos_Carneiro)\ **Replies:** 2\ **Last updated:** [August 3, 2021, 11:25pm UTC](https://discourse.vtk.org/t/problem-in-setinputconnection/6290 "2021-08-03T23:25:06Z")
Dear All, Taking in account the code below: unsigned char \*image3; //contains the raw image vtkNew\ connectivity; vtkSmartPointer\ image4 = vtkSmartPointer\… --- ## [3D Mesh & Texture](https://discourse.vtk.org/t/3d-mesh-texture/6286)
**Author:** [@herman](https://discourse.vtk.org/u/herman)\ **Replies:** 0\ **Last updated:** [August 3, 2021, 5:41am UTC](https://discourse.vtk.org/t/3d-mesh-texture/6286 "2021-08-03T05:41:45Z")
I have a height map(with NAN value) and a 2d image. Part of my code: vtkSmartPointer imageImport = vtkSmartPointer::New(); imageImport-\>SetDataSpacing(1, 1, 1); imageImport-\>SetDataOrigin(0, 0, 0); imageImport-\>Set… --- ## [2D arc fillet using VTK](https://discourse.vtk.org/t/2d-arc-fillet-using-vtk/6268)
**Author:** [@NameRakes](https://discourse.vtk.org/u/NameRakes)\ **Replies:** 6\ **Last updated:** [August 2, 2021, 11:37pm UTC](https://discourse.vtk.org/t/2d-arc-fillet-using-vtk/6268 "2021-08-02T23:37:15Z")
Hi, I would like to add a fillet (or an arc) at the sharp corners of 2D polygons (square, rectangle) etc. Is the following approach correct, say for a square? Especially, is the use of vtkPolyData::CopyCells in step 3 co… --- ## [(Lack of) Documentation and Examples of Parallel (MPI) VTK](https://discourse.vtk.org/t/lack-of-documentation-and-examples-of-parallel-mpi-vtk/6215)
**Author:** [@jrwrigh](https://discourse.vtk.org/u/jrwrigh)\ **Replies:** 2\ **Last updated:** [August 2, 2021, 3:11pm UTC](https://discourse.vtk.org/t/lack-of-documentation-and-examples-of-parallel-mpi-vtk/6215 "2021-08-02T15:11:41Z")
I’ve noticed that there are no parallel vtk demonstrations other than what’s presented in these pair of blogs. Even then, they are focused on Python implementation and on “low level” uses of it (ie. basics of sending dat… --- ## [Efficient way to find the closest point to a plane from polydata.](https://discourse.vtk.org/t/efficient-way-to-find-the-closest-point-to-a-plane-from-polydata/6282)
**Author:** [@Miguel\_Socorro](https://discourse.vtk.org/u/Miguel_Socorro)\ **Replies:** 2\ **Last updated:** [August 2, 2021, 1:45pm UTC](https://discourse.vtk.org/t/efficient-way-to-find-the-closest-point-to-a-plane-from-polydata/6282 "2021-08-02T13:45:08Z")
Hello I have a polydata and I need to find the closest point of that polydata to a given plane. One way to do this is to go through all the points and calculate their distance to the plane, but it is inefficient. Does So… --- ## [Parallel VTK to separate \ and \ from \ and \ in 2 files?](https://discourse.vtk.org/t/parallel-vtk-to-separate-points-and-cells-from-pointdata-and-celldata-in-2-files/6245)
**Author:** [@PouriaG](https://discourse.vtk.org/u/PouriaG)\ **Replies:** 1\ **Last updated:** [August 2, 2021, 8:17am UTC](https://discourse.vtk.org/t/parallel-vtk-to-separate-points-and-cells-from-pointdata-and-celldata-in-2-files/6245 "2021-08-02T08:17:29Z")
Hello all, I am using vtk/paraview to process transient simulation data over a set of nodes that do not move over time. So far I have copied the same cells and points data over different files corresponding to each time… --- ## [Using VTK shared libraries in (CERN) ROOT](https://discourse.vtk.org/t/using-vtk-shared-libraries-in-cern-root/6236)
**Author:** [@Wile\_E\_Coyote](https://discourse.vtk.org/u/Wile_E_Coyote)\ **Replies:** 22\ **Last updated:** [August 1, 2021, 9:43am UTC](https://discourse.vtk.org/t/using-vtk-shared-libraries-in-cern-root/6236 "2021-08-01T09:43:40Z")
I have recently (quite accidentally) got interested in VTK. I am trying to use its shared libraries from inside of ROOT. The current status is that I can dynamically load VTK libraries in a ROOT interactive session and… --- ## [cmake showing warning while configuring](https://discourse.vtk.org/t/cmake-showing-warning-while-configuring/6276)
**Author:** [@Asif\_Hossain](https://discourse.vtk.org/u/Asif_Hossain)\ **Replies:** 1\ **Last updated:** [July 31, 2021, 9:14pm UTC](https://discourse.vtk.org/t/cmake-showing-warning-while-configuring/6276 "2021-07-31T21:14:58Z")
I am getting the following warning when i try to configure Vtk 9.0.3 in CMake.Myoperating sysytem is Ubuntu 20.04 Warning at Rendering/OpenGL2/CMakeLists.txt:359 (message): X11::Xcursor not found; custom cursors will b… --- ## [Self-intersection check](https://discourse.vtk.org/t/self-intersection-check/6274)
**Author:** [@Hyunwoo\_Kim](https://discourse.vtk.org/u/Hyunwoo_Kim)\ **Replies:** 1\ **Last updated:** [July 31, 2021, 9:54am UTC](https://discourse.vtk.org/t/self-intersection-check/6274 "2021-07-31T09:54:35Z")
Hi, I’m trying to create a poly data consists of triangle components. In my case, it is essential that the poly data guarantees do not have self-intersection. I tried to find self-intersection by a triangle.Intersecti… --- ## [TextActor in multi viewport](https://discourse.vtk.org/t/textactor-in-multi-viewport/6269)
**Author:** [@windhair10](https://discourse.vtk.org/u/windhair10)\ **Replies:** 1\ **Last updated:** [July 30, 2021, 8:53pm UTC](https://discourse.vtk.org/t/textactor-in-multi-viewport/6269 "2021-07-30T20:53:55Z")
I’m coding for a multi viewport framework,(2\*2), want to add a short text message in each viewport using vtkTextActor, but find the SetDisplayPosition is based on the RendererWindow coordinate, which means the position o… --- ## [Is there any way to use vtkImageViewer2 in QT project?](https://discourse.vtk.org/t/is-there-any-way-to-use-vtkimageviewer2-in-qt-project/6266)
**Author:** [@jjjkk](https://discourse.vtk.org/u/jjjkk)\ **Replies:** 1\ **Last updated:** [July 30, 2021, 4:47pm UTC](https://discourse.vtk.org/t/is-there-any-way-to-use-vtkimageviewer2-in-qt-project/6266 "2021-07-30T16:47:47Z")
I read the example about how to use vtk in qt. But it seems that I can just add a renderwinodws to QVTKWidget. But vtkImageViewer2 is not Inherhit from renderwinodw. I really want to use the function like SetSlice in vt… --- ## [A bug of EdgeVisibilityOn in windows](https://discourse.vtk.org/t/a-bug-of-edgevisibilityon-in-windows/6237)
**Author:** [@zhang-qiang-github](https://discourse.vtk.org/u/zhang-qiang-github)\ **Replies:** 4\ **Last updated:** [July 29, 2021, 12:05pm UTC](https://discourse.vtk.org/t/a-bug-of-edgevisibilityon-in-windows/6237 "2021-07-29T12:05:09Z")
Currently, I want to plot a line in image. My code is: import vtk from vtk.util.numpy\_support import vtk\_to\_numpy, numpy\_to\_vtk import numpy as np def numpyToVTK(data): if len(data.shape) == 2: data = data\[… --- ## [Special Feature Edges on Transparent Model?](https://discourse.vtk.org/t/special-feature-edges-on-transparent-model/6262)
**Author:** [@TravStu22](https://discourse.vtk.org/u/TravStu22)\ **Replies:** 0\ **Last updated:** [July 28, 2021, 9:08pm UTC](https://discourse.vtk.org/t/special-feature-edges-on-transparent-model/6262 "2021-07-28T21:08:56Z")
Hi, Imagine we are rendering a cube (vtkPolyData) along with its boundary edges (vtkFeatureEdges). We can’t see the edges on the back of the cube because the cube is occluding it. That’s good. Let’s say we make the cube… --- ## [How does VTKMassProperties compute volume?](https://discourse.vtk.org/t/how-does-vtkmassproperties-compute-volume/6256)
**Author:** [@DFlyer](https://discourse.vtk.org/u/DFlyer)\ **Replies:** 2\ **Last updated:** [July 28, 2021, 6:20pm UTC](https://discourse.vtk.org/t/how-does-vtkmassproperties-compute-volume/6256 "2021-07-28T18:20:13Z")
Hello, What is the math behind the volume computation performed in VTKMassProperties? Also what does Volume - X, Y and Z mean? (I could see a research paper being cited, but can someone explain in a layman terms?) Tha… --- ## [The result of Boolean operation returns non-manifold surfaces](https://discourse.vtk.org/t/the-result-of-boolean-operation-returns-non-manifold-surfaces/4018)
**Author:** [@zandarina](https://discourse.vtk.org/u/zandarina)\ **Replies:** 12\ **Last updated:** [July 28, 2021, 2:56pm UTC](https://discourse.vtk.org/t/the-result-of-boolean-operation-returns-non-manifold-surfaces/4018 "2021-07-28T14:56:19Z")
Hello everybody, I have a question. I am using vtkBooleanOperationPolyDataFilter to make holes in a polydata using a cylinder. The result looks good. But when I go to blender, I get a warning that the result is not mani… --- ## [VTK not found in python after conda install](https://discourse.vtk.org/t/vtk-not-found-in-python-after-conda-install/6251)
**Author:** [@sandwich](https://discourse.vtk.org/u/sandwich)\ **Replies:** 7\ **Last updated:** [July 28, 2021, 1:16pm UTC](https://discourse.vtk.org/t/vtk-not-found-in-python-after-conda-install/6251 "2021-07-28T13:16:53Z")
I am attempting to install and run mayavi through python using conda on windows 10. I have run: According to conda, I have vtk 8.2.0 installed after running these commands. However, after attempting to start mayavi by… --- ## [ReInitialize the web-project-templates-master example](https://discourse.vtk.org/t/reinitialize-the-web-project-templates-master-example/6259)
**Author:** [@Luis\_Carlos\_Carneiro](https://discourse.vtk.org/u/Luis_Carlos_Carneiro)\ **Replies:** 0\ **Last updated:** [July 28, 2021, 11:05am UTC](https://discourse.vtk.org/t/reinitialize-the-web-project-templates-master-example/6259 "2021-07-28T11:05:59Z")
Dear All, How to reinitialize the web-project-templates-master example? After interact with the example I want to reinitialize the example to initial state. I want to run \_\_init(self) and @exportRpc("vtk.initialize")… --- ## [vtkGeometryFIlter does not support vtkMultiBockDataSet containing mixed polydata/unstructured grid content](https://discourse.vtk.org/t/vtkgeometryfilter-does-not-support-vtkmultibockdataset-containing-mixed-polydata-unstructured-grid-content/6238)
**Author:** [@scotsman60](https://discourse.vtk.org/u/scotsman60)\ **Replies:** 9\ **Last updated:** [July 28, 2021, 6:50am UTC](https://discourse.vtk.org/t/vtkgeometryfilter-does-not-support-vtkmultibockdataset-containing-mixed-polydata-unstructured-grid-content/6238 "2021-07-28T06:50:47Z")
Hello!! I’m working with vtkMultiBlockDataSets that contain both ctkPolyData and vtkUnstructuredGrid blocks. I find that neither vtkGeometryFilter nor vtkDataSetSurfaceFIlter support such a dataset. These filters work … --- ## [Import multiple data array from unstructured file into a polydata(cpp)](https://discourse.vtk.org/t/import-multiple-data-array-from-unstructured-file-into-a-polydata-cpp/6255)
**Author:** [@lhy11009](https://discourse.vtk.org/u/lhy11009)\ **Replies:** 0\ **Last updated:** [July 27, 2021, 11:53pm UTC](https://discourse.vtk.org/t/import-multiple-data-array-from-unstructured-file-into-a-polydata-cpp/6255 "2021-07-27T23:53:10Z")
I am a new user of VTK, everything is working before I get this problem. First, let me apologize for the dumb question I am asking here. What I want to do is reading in an Unstructured dataset from a file, and put them … --- ## [How Can I add Reslice Image from Volume to Volume?? (MFC)](https://discourse.vtk.org/t/how-can-i-add-reslice-image-from-volume-to-volume-mfc/6243)
**Author:** [@kookoo9999](https://discourse.vtk.org/u/kookoo9999)\ **Replies:** 1\ **Last updated:** [July 26, 2021, 9:32am UTC](https://discourse.vtk.org/t/how-can-i-add-reslice-image-from-volume-to-volume-mfc/6243 "2021-07-26T09:32:55Z")
I try to add the Reslice Image(2D,Axial,Coronal,Sagittal) to Volume(3D) I think as I get the Reslice Image from Volume , I add actor(Reslice) to Volume . but Situation is this picture… --- ## [how to adjust the volume position base on image slice](https://discourse.vtk.org/t/how-to-adjust-the-volume-position-base-on-image-slice/2512)
**Author:** [@yuhuimoon](https://discourse.vtk.org/u/yuhuimoon)\ **Replies:** 3\ **Last updated:** [July 26, 2021, 5:06am UTC](https://discourse.vtk.org/t/how-to-adjust-the-volume-position-base-on-image-slice/2512 "2021-07-26T05:06:42Z")
Hi, My program can render image slice(sagittal, coronal and axial orientation) from DICOM data and the volume base on the DICOM data in a window. But the volume position is not what I want. It’s outside of the slice bo… --- ## [Create connectivity of STL](https://discourse.vtk.org/t/create-connectivity-of-stl/6241)
**Author:** [@omarElsayed](https://discourse.vtk.org/u/omarElsayed)\ **Replies:** 0\ **Last updated:** [July 25, 2021, 7:53pm UTC](https://discourse.vtk.org/t/create-connectivity-of-stl/6241 "2021-07-25T19:53:42Z")
Hi all, I am new to VTK. I managed to load an STL file successfully. I would like to convert the stl into a surface mesh vertex-\>edge-\>triangle and vice versa. Is there a direct pipeline/filer that can help in generatin… --- ## [Clip Polydata along a round surface](https://discourse.vtk.org/t/clip-polydata-along-a-round-surface/6228)
**Author:** [@m.zouari](https://discourse.vtk.org/u/m.zouari)\ **Replies:** 5\ **Last updated:** [July 24, 2021, 6:01pm UTC](https://discourse.vtk.org/t/clip-polydata-along-a-round-surface/6228 "2021-07-24T18:01:16Z")
Hello! So i have this 2 pipes combination, and what im trying to do, is to seperate the second pipe out of the first one, to get 2 pipes ( the one on the base should be a perfect cylinder and the other should have a … --- ## [How to draw a rectangle that can move and rotate around x，y, z ?](https://discourse.vtk.org/t/how-to-draw-a-rectangle-that-can-move-and-rotate-around-x-y-z/6231)
**Author:** [@wulicheng](https://discourse.vtk.org/u/wulicheng)\ **Replies:** 0\ **Last updated:** [July 23, 2021, 9:16am UTC](https://discourse.vtk.org/t/how-to-draw-a-rectangle-that-can-move-and-rotate-around-x-y-z/6231 "2021-07-23T09:16:59Z")
How to draw a rectangle like this: --- ## [Mesh edges visible through a thin object - how to remove?](https://discourse.vtk.org/t/mesh-edges-visible-through-a-thin-object-how-to-remove/6208)
**Author:** [@michaelhogg](https://discourse.vtk.org/u/michaelhogg)\ **Replies:** 2\ **Last updated:** [July 23, 2021, 6:47am UTC](https://discourse.vtk.org/t/mesh-edges-visible-through-a-thin-object-how-to-remove/6208 "2021-07-23T06:47:02Z")
Hi all, I have a polydata object that is thin in some regions. When I show edges, the edges on the back side of the object are visible. You can see this in the attached image. This does not happen in Paraview, so I assu… --- ## [Keeping axes tick marks on screen, and refining axes tick marks](https://discourse.vtk.org/t/keeping-axes-tick-marks-on-screen-and-refining-axes-tick-marks/6229)
**Author:** [@srivastavaayurv](https://discourse.vtk.org/u/srivastavaayurv)\ **Replies:** 4\ **Last updated:** [July 23, 2021, 6:23am UTC](https://discourse.vtk.org/t/keeping-axes-tick-marks-on-screen-and-refining-axes-tick-marks/6229 "2021-07-23T06:23:36Z")
Overview I am currently using a vtkCubeAxesActor to serve as an axes system for my data set. I am wondering if it is possible to keep the axis tick marks visible on the screen at all times while viewing zooming into the… [Previous page](https://discourse.vtk.org/c/support/6.md?page=98) [Next page](https://discourse.vtk.org/c/support/6.md?page=100)