[vtkusers] picking points in 3D data

[Charl P. Botha]

On 10/31/05, Aaron Cois <aaron_vtk at yahoo.com> wrote:
>   // start interaction - NOTE: I have tried both
> versions of the line below with no success
>
>   //GetInputRenderWindowInteractor()->Start();
>
> GetInputRenderWindowInteractor()->StartPickCallback();
>
> ----------------------------------------------------
>
> Note that the interactors here are
> vtkFlRenderWindowInteractors (could this be the
> problem?).

AFAICR, that pick callback is for when you actually activate the pick
function by pressing 'p'.  This can pick whole objects in the scene. 
For picking points in the volume, you have to add the necessary
observers to each image plane widget.

--
charl p. botha http://cpbotha.net/ http://visualisation.tudelft.nl/

c.p.botha ||at|| ewi.tudelft.nl - tu delft work-related email
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