[vtkusers] Issue when changing slice on DICOM series

[Manuel Corrales]

Adding more information to this, I can use the imageViewer and that works
fine when changing slices using imageViews->SetSlice but I would like to
have more control and have the instances of mapper, actor and interactor
myself.

Regards,
Manuel.


On Thu, Jun 13, 2013 at 3:18 PM, Manuel Corrales
<manuelcorrales at gmail.com>wrote:

> I have a very simple code (python, but it's simple):
>
> import vtk
> # Reader
> reader = vtk.vtkDICOMImageReader()
> reader.SetDirectoryName("folderWithDICOMImages/")
> reader.Update()
>
> # Mapper
> mapper = vtk.vtkImageSliceMapper()
> mapper.SetInputConnection(reader.GetOutputPort())
>
> # Actor
> actor = vtk.vtkImageActor()
> actor.SetMapper(mapper)
>
> # Renderer
> renderer = vtk.vtkRenderer()
> renderer.AddViewProp(actor)
>
> # Window
> renwin = vtk.vtkRenderWindow()
> renwin.SetSize(500, 500)
>
> renwin.AddRenderer(renderer)
> renwin.Render()
>
> This code works fine when executed in vtkpython. My problem is when I call
>
> mapper.SetSliceNumber(1)
>
> and render the window again, the window goes black. Why is not showing the
> slice? The images have 12 slices because mapper.GetSliceNumberMaxValue() says
> so.
>
> Any help?
>
> Thanks.
> Manuel.
>
>
>
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