[vtkusers] problem of writing a JPEG image

[Christian Chilan]

I've been able to save images successfully using
vtkWindowToImageFilter and the standard writer
classes.

However, if you have an interactor in the window (to
change the camera position with the mouse), you can
note that the application performance turns really
slow after saving an image.

Does anybody know how to solve this?

Christian

--- Andy Cedilnik <andy.cedilnik at kitware.com> wrote:
> Hello,
> 
> You do add some actors do you?
> Try:
> 
>  w2i Update
> 
> before the Write.
> 
> 			Andy
> 
> On Fri, 2002-09-06 at 16:37, Zhan Zhang wrote:
> > I met some problem while using the image writing
> function in VTK. I
> > write in TCL running on a Win 2000 platform. Could
> somebody point out a
> > solution for me?
> > 
> > My TCL script is:
> > 
> > vtkRenderer ren1
> > vtkRenderWindow renWin
> >     renWin AddRenderer ren1
> > ren1 Render
> > 
> > vtkWindowToImageFilter w2i
> > 	w2i SetInput renWin
> > 	
> > vtkJPEGWriter writer
> > 	writer SetInput [w2i GetOutput]
> > 	writer SetFileName "c:\\zhan\\test.jpg"
> > 	writer Write
> > 
> > the error message is attached in this email as
> "error.gif"
> 
> 
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