Hello Paulo,
Thank you so much for your answer, yes what you said looks convenient,
Sorry I didn’t specify it before,
In my application I have a X number of patients, each patient has 3 files (A brain-MRI.vti, a brain-segmentation.vtk and a face-surface.vtk)
The user can choose from the list of patients a patient to display, so I charge the N patient files and I delete what is previously rendered (N-1) in order to render the new actors, (I delete the actors, mappers, widget (ResliceCursorWidget) and the OpenGLRenderWindow and the GenericRenderWindow),
I don’t know if this the right way to do it,
PS: in the 3D view I have:
PLANS VIEW: Plans actors + Sphere actor
CERVEAU VIEW: Polydata actor + Sphere actor
PEELING VIEW: 2 Poly data actors + Sphere actor