I want to get those planes for knowing what I can see.
Those planes is defined below.
Use ON_Viewport::GetNearPlane
and ON_Viewport::GetFarPlane
.
CRhinoView* view = RhinoApp().ActiveView();
if (view)
{
const ON_Viewport& vp = view->ActiveViewport().VP();
ON_Plane near_plane, far_plane;
if (vp.GetNearPlane(near_plane))
{
// TODO...
}
}
Thanks a lot !