Method and system for indexing three-dimensional solid model dat

Details Method and system for indexing three-dimensional solid model dat Method and system for indexing three-dimensional solid model dat

1995-09-13

1998-12-01

Jankus, Almis R.

Computer graphics processing and selective visual display system

Computer graphics processing

Three-dimension

G06T 1700

Patent

active

058445633

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.

REFERENCES:
patent: 5119309 (1992-06-01), Cavendish et al.
patent: 5345546 (1994-09-01), Harada et al.
patent: 5615317 (1997-03-01), Freitag
Publication entitled "Design of Solids With Free-Form Surface" by Chiyokura, et al., Computer Graphics, vol. 17, No. 3, Jul. 1983, pp. 289-298.
Publication entitled "UNDO and REDO Operations for Solid Modeling" by Toriya, et al., IEEE CG&A, Apr. 1986, pp. 35-42.
Publication entitled "Solid Modelling with Designbase Theory and Implementation" by Hiroaki Chiyokura, Jan. 1988, pgs. cover, contents and 230-235.

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