A coordinate design and information system (CDIS) combining coordinate geometry, spatial features and drafting into one package. CDIS uses an object-oriented and spatial-based approach in which all objects have a set of attributes, while space and areas are defined and tracked. The invention has such...http://www.google.de/patents/US7312802?utm_source=gb-gplus-sharePatent US7312802 - Coordinate design and information system
