[vtkusers] Picking

[Will Schroeder]

Hi Maneesh -

When you pick now, you pick an assembly path. This path consists of 
assembly nodes, each node containing a reference to a vtkProp and
a matrix. (David Gobbi- we should look at the implications of using 
transforms vs. matrices.) The matrix is fully evaluated at each point 
in the assembly path (i.e., the effects of concatenation are propagated 
through the assembly path.)

What you can do with the assembly path is get at all the levels in the
assembly hierarchy. From here you can process this ordered list
to do things to each level. There's probably more functionality that
needs to be added, I'd enjoy hearing any ideas.

Will


At 11:16 PM 6/10/00 -0400, Maneesh Yadav wrote:
>I am still a little confused about the new (heck even the old) picking
>stuff...But I would really like to be able to have pick levels (i.e. be
>able to pick a molecule, residues and atoms)...can I dynamically adjust
>"pickability" of actors in the scene (like set up a series of picklists)
>easily or at least in a straightforward manner with the way things are
>setup now?
>
>
>
>_______________________________________________
>This is the private VTK discussion list. 
>Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
>vtkusers mailing list
>vtkusers at public.kitware.com
>http://public.kitware.com/mailman/listinfo/vtkusers