Re: [wxVTK] vtkImageViewer2

[Mathieu M. <mat...@gm...>]

You need to use the same RenderWindow, this is the trick.

On Fri, Oct 16, 2009 at 5:57 PM, Suyang Mei <suy...@ya...> wrote:
>
> Hi, all -
>
>   I am new to wxVTK even VTK world.
>
>   I need to implement a 2D slicer to display 2D slices from a 3D volume by using wxWidget, python & VTK. By searching the web, I am planning to use vtkImageViewer2 to implement it, is this a good choice? any suggestion?
>
>    Here is the sample codes I am working on (I use a 2D slice to start with, the Forest4.png with the size of 192 & 256) -
>
> ####################################
> import vtk
> from vtk.util.misc import vtkGetDataRoot
> from vtk.wx.wxVTKRenderWindowInteractor import *
> from wxPython.wx import *
>
> app = wxPySimpleApp()
>
> frame = wxFrame(None, -1, "wxRenderWindow", size=wxSize(400,400))
> frame.Show(1)
>
> reader = vtk.vtkPNGReader ()
> reader.SetDataSpacing (1.0, 1.0, 1.0)
> reader.SetFileName ( "Forest4.png")
>
> iren = wxVTKRenderWindowInteractor(frame, -1)
> iren.AddObserver("ExitEvent", lambda o,e,f=frame: f.Close())
>
> viewer = vtk.vtkImageViewer2()
> viewer.SetInput ( reader.GetOutput() )
> viewer.SetupInteractor (iren)
> #viewer.GetRenderer().ResetCameraClippingRange()
>
> app.MainLoop()
> ####################################
>
>   When I run this *.py file, I got the image displayed at the upper left corner of the view port, only occupied a small portion. How do I correctly set the zoom factor?
>
>   I googled vtkImageViewer2, back to 2003, there were many posts about bugs inside vtkImageViewer2 when using wxWidget -
>
> http://public.kitware.com/pipermail/vtkusers/2003-September/069419.html
>
>   Is this problem fixed? I am using VTK version 5.2, wxPython 2.8.9.1, and I am in linux.
>
>   Any suggestions will be helpful, thanks.
>
> Suyang
>
>
>
>
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--
Mathieu