[vtkusers] disappearing act

[david e ignacio]

I believe this is because the viewer.Render() is only called once, so
then the image is only written once.  You would need to find something
similar to a vtkRenderWindowInteractor that creates a loop and
repeatedly renders the image.  

Hope that helps
dave


On Tue, 2004-02-10 at 22:37, rharder at uiuc.edu wrote:
> Hi, 
> I've finally gotten my array to show up as an image.  The only
> problem is, the object within the image window disappears if
> another window is placed on top of the image window.
> vtkpython code follows.
> 
> data = vtk.vtkDoubleArray()
> data.SetVoidArray(datastring,len(datastring)/data.GetDataTypeSize(),1)
> data.CreateDefaultLookupTable()
> 
> id = vtk.vtkImageData()
> id.GetPointData().SetScalars(data)
> id.SetDimensions(256,256,1)
> #id.SetScalarType(vtk.VTK_UNSIGNED_CHAR)
> id.SetSpacing(1.0,1.0,0.0)
> id.SetOrigin(0.0,0.0,0.0)
> 
> viewer = vtk.vtkImageViewer()
> viewer.SetInput( id )
> viewer.SetColorWindow(1)
> viewer.SetColorLevel(.5)
> viewer.Render()
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