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.

Date of Patent:
Dec. 01, 1998

Filed:

Sep. 13, 1995
Applicant:
Inventors:

Tsuyoshi Harada, Funabashi, JP;

Hiroshi Matsuoka, Kobe, JP;

Shun Shirakawa, Haraikata-machi, JP;

Assignee:

Ricoh Company, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06T / ;
U.S. Cl.
CPC ...
345420 ;
Abstract

The current invention discloses the method and the system for designing a three-dimensional model object with an automatic updating feature which correctly and efficiently updates the model object in response to a modification command. In order to efficiently access a part of the object data associated with the modification command, a group of parts in the model object is referred by an index. Such groups include a face set, an edge sequence and a vertex, and these elements are associated to a given modification command by the index. The association between the modification command and the elements via the index provides an efficient yet flexible access to the relevant object data and substantially eliminates the unintended effects during the updating process.


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