Patent ID: 7006087
Filing Date: 2006-02-28
Classification: G06T

Abstract:
1. A solid shape describing method employed for an information processing system that stores shape data for describing a solid model existing in a three-dimensional space in a storage unit so as to use said shape data, said information processing system comprising a shape processing unit, a storage unit, a console unit, and a display unit, said shape describing method comprising the steps of: displaying a fixed coordinate system corresponding to a pre-defined three-dimensional space on the screen of said display unit; receiving first shape data for describing said solid model, and accepting an area of a single or plurality of floating coordinate systems and defined resolution for said solid model on said fixed coordinate system displayed on the screen of said display unit; calculating a relative positional relationship between said fixed coordinate system and each of said floating coordinate systems from the area of said single floating or coordinate system or of each of said plurality of floating coordinate systems and said defined resolution algebraically to define a three-dimensional cell array that determines whether a grid point defined by said floating coordinate system exists inside or outside said shape; describing the correspondence between said floating coordinate system and said three-dimensional cell array to generate second shape data for describing said solid model; and storing said generated second shape data of said solid model in said storage unit.