The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 27, 2001
Filed:
Mar. 11, 1998
Applicant:
Inventors:
Yoshihisa Shinagawa, Tokyo, JP;
Kazuki Hirose, Tokyo, JP;
Assignee:
Monolith Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06T 1/120 ;
U.S. Cl.
CPC ...
G06T 1/120 ;
Abstract
Shape expressions in CAD or CG have often been carried out in polygon data. In polygon representations, the amount of data becomes very large if precision is pursued. Another shape representation utilizing the existing polygon data asset is proposed. Polygon data showing the shape of an object is first obtained. Topological information of the object is extracted from the polygon data. Based on the information, the polygon data is converted into topological data. The inversion is carried out upon necessity.