Slice view not showing images?

jamesobutler · October 29, 2020, 5:23pm

It is the top open issue. See

github.com/Slicer/Slicer

VTK 9: Slicer viewer do not show the Slice

opened 06:25AM - 01 Oct 20 UTC

closed 03:19PM - 04 Dec 20 UTC

jcfr

Type: Bug Priority: High

Working on the slice view issue, here are some results. Below are the **Resul…ts** obtained after running the **Test1** and **Test2** in two builds of Slicer, One with VTK8 and one with VTK9. * VTK8: Slicer/Slicer@d52af6b303 * VTK9: This PR at https://github.com/Slicer/Slicer/pull/5141/commits/47672a73f6442205083b7ede0cd34696b92d652a # Results ## Summary | | VTK 8 | VTK 9 | |---|----|---| | Test1| :heavy_check_mark: | :heavy_check_mark: | | Test2| :heavy_check_mark: | :x: | I suspect the problem is related to the use of [vtkLightBoxRendererManager](https://github.com/commontk/CTK/blob/support-build-with-vtk89/Libs/Visualization/VTK/Core/vtkLightBoxRendererManager.h) in [ctkVTKSliceView](https://github.com/commontk/CTK/blob/support-build-with-vtk89/Libs/Visualization/VTK/Widgets/ctkVTKSliceView.h) ## Outputs | | VTK 8 | VTK 9 | |---|----|---| | Test1| ![image](https://user-images.githubusercontent.com/219043/92126306-04ee6680-edce-11ea-8b9d-da5024824099.png) | ![image](https://user-images.githubusercontent.com/219043/92126424-28b1ac80-edce-11ea-955e-a5bd7ea0765f.png) | | Test2| ![image](https://user-images.githubusercontent.com/219043/92126511-44b54e00-edce-11ea-8f5b-3c4ed85c6ebc.png) | ![image](https://user-images.githubusercontent.com/219043/92126607-631b4980-edce-11ea-9a48-a796af2e335f.png) | # Tests ## Test1: Visualize slice pipeline output using vtkDataSetMapper/vtkRenderer/vtkRenderWindow ```python import vtk import SampleData SampleData.downloadSample("MRHead") sliceLogic = slicer.app.layoutManager().sliceWidget("Red").sliceLogic() imageData = sliceLogic.GetImageDataConnection().GetProducer().GetOutputDataObject(0) mapper = vtk.vtkDataSetMapper() actor = vtk.vtkActor() actor.SetMapper(mapper) ren = vtk.vtkRenderer() renWin = vtk.vtkRenderWindow() renWin.AddRenderer(ren) iren = vtk.vtkRenderWindowInteractor() iren.SetRenderWindow(renWin) ren.AddActor(actor) renWin.SetSize(300,300) mapper.SetInputData(imageData) renWin.Render() ``` ## Test2: Visualize slice pipeline output using ctkSliceView ```python import ctk import SampleData SampleData.downloadSample("MRHead") sliceLogic = slicer.app.layoutManager().sliceWidget("Red").sliceLogic() imageDataConnection = sliceLogic.GetImageDataConnection() sliceView = ctk.ctkVTKSliceView() sliceView.setImageDataConnection(imageDataConnection) sliceView.show() sliceView.forceRender() ``` _Originally posted by @jcfr in https://github.com/Slicer/Slicer/pull/5141#issuecomment-686523379_

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Slice view not showing images?

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