[vtkusers] Forward declaring vtkSmartPointer

[Marcus D. Hanwell]

On Monday 16 November 2009 14:29:02 David Doria wrote:
> > declaration to work. You have declared a local instance of
> > vtkSmartPointer<vtkTransform> and so the full definition is required.
> > Forward
> > declarations can only be used when you are using pointers or references.
> >
> > The smart pointer becomes fairly useless when you need to use a pointer
> > to it
> > though, as you then have to destroy it yourself and so you may as well
> > use a
> > pointer to the object.
> >
> > Marcus
> 
> So the solution is not to use smart pointers for member variables?
> 
Or to include the vtkSmartPointer header in your header, see for example 
Views/vtkTreeMapViewer.h, Infovis/vtkFast2DLayoutStrategy.h and others which 
does exactly that.

Hope that helps.

Marcus
-- 
Marcus D. Hanwell, Ph.D.
R&D Engineer, Kitware Inc.
(518) 881-4937