[vtkusers] Offscreen rendering pipeline

[Malcolm Drummond]

Hi Martin

You can use a vtkPolyDataWriter as your sink - the Write command would cause
propagation of an update through the pipeline. Otherwise just use an Update
command on the last filter. Either way, no rendering required.

Malcolm

----- Original Message -----
From: Martin Thornalley <martin_thornalley at hotmail.com>
To: <vtkusers at public.kitware.com>
Sent: Thursday, August 15, 2002 1:11 PM
Subject: [vtkusers] Offscreen rendering pipeline


>
> I was wondering if it possible to create a rendering pipeline that is not
> attached to a renderwindow.  I have a series of polydata datasets that I
> wish to register using the vtkIterativeClosestPointTransform class and
> following the registration obtain the number of iterations and mean
> distance.  I'd rather not do all this is a renderwindow if I can help it
as
> I don't need to display the data at this stage.  I have succeeded in doing
> this within a vtkRenderWindow and set the opacity of all actors to 0 so
that
> nothing is visible but I'd rather not have to create the vtkRenderWindow
at
> all.
>
> Any suggestions?
>
>
> Thanks,
> Martin Thornalley.
>
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