[vtkusers] vtkPlaneSource and normal

[Frederic Huguet]

Hi,

I use a vtkPlaneSource and MFC to create a cutting plane on a 3D object.
But I need to get the normal of this plane in real time. There is no
function GetNormal, so How could I compute the normal vector to the
plane ? I thought vtkPlaneWidget was useful but I can't integrate it to
my MFC Interface. Is there any way to find the normal ?

Thanks