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Modified Parcels (MP) creation: SP to modify (blue) and a vertex external to this selected SP, belonging to its boundary face, were randomly chosen, and a growing set of vertices G that initially contains only this chosen vertex is defined (A). Vertices adjacent to each vertex in G are added to G iteratively (B,C). Vertices belonging to the SP were removed from G (D). Resulted G was moved in SP resulting in MP (E,F).
