[vtkusers] Segmentation

[Goodwin Lawlor]

Hi Sean,

Have a look at vtkPolyDataConnectivityFilter

Hth

Goodwin

Date: Sun, 13 Jun 2004 19:54:34 -0400 (EDT)
From: Sean Richards <sean at millwood.ca>
Subject: [vtkusers] Segmentation
To: vtkusers at vtk.org
Message-ID: <1133335.1087170874775.JavaMail.sean at millwood.ca>
Content-Type: text/plain; charset="us-ascii"

Hello all!

I was hoping someone would be able to help point me in the right
direction.

I am rendering a scene that has multiple actors in it. The problem is
that the entire scene has to be initially rendered as a single actor. I
want to then be able to select the individual pieces and segment them
into distinct actors. In case this is a little fuzzy, I will try to
explain with a use case ...

Pretend you have data that represents a broken piece of plastic

- Read in this data and render to the screen
- User can click a region of the scene that corresponds to one of the
broken pieces of plastic
- From the location the user clicks, the algorithm needs to be able to
build up the piece of broken material (say with a flood fill)
- Once all the polygons of this piece are found, we can turn this into
an actor

If this is not clear, I will try and clarify.

Thanks so much in advance for any help!

Sean

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