A method and a system for creating a Positional Reality scene of a plurality of real objects that represents a virtual reality scene with the correct positional information about real objects are disclosed. A Positioning Reality Image of each geometrical object is built by using an integrated Satellite...http://www.google.com.hk/patents/US6677938?utm_source=gb-gplus-share專利 US6677938 - Generating positional reality using RTK integrated with scanning lasers