[vtkusers] How to loop around vtkAppendPolydata ?

[Malcolm Drummond]

Hi

This accumulation is possible, copying the output and resetting it as one of
the inputs. But what about your indexing into the final polydata, for later
removal or adjustment of individual objects etc. I tried something like this
a couple of years ago and found in the end I was better off managing the
PolyData accumulation myself. I'd suggest having a look at how filters like
Append work internally (the User's Guide also has good info on creating and
maintaining PolyData) and try roll your own.

Malcolm

----- Original Message -----
From: "tutu lamotte" <tutulamotte at yahoo.com>
To: <vtkusers at vtk.org>
Sent: Thursday, September 25, 2003 10:41 PM
Subject: [vtkusers] How to loop around vtkAppendPolydata ?


> Dear List !
>
> We need to find a way to "accumulate" many polydata
> that are manually created (Without source object). The
> huge accumulated polydata would be the output of a
> vtkAppendPolydata instance. Now because it is an
> accumulation, it means that the output would also need
> to be the input of the same vtkAppendPolydata
> instance. Each new polydata would be inserted as a
> second input. (this second input would be disconnected
> after Update is called on the Append filter. )
> We've tried that approach but the end result is always
> one single polydata... and not an accumulation of all
> the datasets that were appended.
>
> Hope it's clearly explained !
>
> Thanks for any suggestions !
>
>
> __________________________________
> Do you Yahoo!?
> The New Yahoo! Shopping - with improved product search
> http://shopping.yahoo.com
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at:
<http://public.kitware.com/cgi-bin/vtkfaq>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
>