Graphic processing system for automatically reconstructing dimensional and geometric constraints of graphics

Patent 5390294 Issued on February 14, 1995. Estimated Expiration Date:

September 17, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

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Inventor

Takeuchi, Kazuhiro

Assignee

Fujitsu Limited

Application

No. 124405 filed on 09/17/1993

US Classes:

345/441, Shape generating345/440Graph generating

Examiners

Primary: Herndon, Heather R.
Assistant: Vo, Cliff N.

Attorney, Agent or Firm

Greer, Burns & Crain, Ltd.

Foreign Patent References

0492901A2 EP. 12/13/1991
4271475 JP. 09/13/1992

International Class

G06F 015/60

Foreign Application Priority Data

1992-09-18 JP

Abstract

A graphic processing system having a graphic element managing table storing the graphic information of graphic elements and a dimension-geometry constraint managing table storing the dimensional and geometric constraints for graphic elements. The system includes a dimension-geometric constraint succession judging table referred to for judging whether or not the dimensional and geometric constraints of a graphic are to be succeeded. Thereby, the system automatically determines whether the constraint information in the dimension-geometry constraint managing table can be succeeded as they are or must be deleted when editing is further applied to a graphic which has been already formed. The automatic determination is achieved by referring to the dimension-geometry constraint succession judging table which updates the constraint information without manual operation by the user.