[vtkusers] How to use vtkInteractorObserver.h to link interactions in multiples viewports?

[Sicilia Judice]

I have an application with multiples viewports... I need to link the
interaction between then... Can I use vtkInteractorObserver.h to do this?
And how can i do this?

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Sicilia Ferreira Judice
www.lncc.br/~sicilia
sicilia at lncc.br

Laboratório Nacional de Computação Cientifica
Avenida Getulio Vargas, 333 - Quitandinha.
Petrópolis, RJ, Brasil - CEP: 25651-075.
Sala 1A-44  | Tel. +55 (24) 2233-6173
Lab. Virtual | Tel. +55 (24) 2233-6098
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