1. A method for generating a 2D view of a 3D model, said 3D model comprising at least one object, said method comprising, for at least one object of said 3D model, the steps of: testing whether or not a predefined 2D representation of said object is available for said 2D view, if said 2D representation is available, using this 2D representation in said 2D view, and if said 2D representation is not available, calculating a 2D projection of said object and using this 2D projection in said 2D view.