OVERVIEW

This invention completes the DPSM method previously protected that was linked to the crossing of a dioptre with a more generic approach treating of multiple layering (Ref. 63049). The treatment allows the decomposition of an issue in a group of layers. Each layer synthesizes the action of previous sources on the treated layer. So the issue is simpler as the sources of a given environment synthesize the action of all the previous layers in this environment.