Patent
1991-02-25
1994-04-12
Bayerl, Raymond J.
395127, 395137, 395161, G06F 1572, G06F 1560
Patent
active
053033370
ABSTRACT:
An image display method and an image display system in which, based on a relative positional relationship between a three-dimensional image displayed on an image screen and an optional position designated by an operator on said image screen, the three-dimensional image is displayed after being rotated by a predetermined angle with respect to the relative positional relationship. An image is obtained by rotating the three-dimensional image by 90 degrees around a line which is orthogonal to a line connecting a center position of the three-dimensional image displayed on the image screen with the optional point designated by the operator on the image screen, thereby making it possible to designate a display perspective of a design object with operating sense which conforms with the design intent of the designer.
REFERENCES:
patent: 4754269 (1988-06-01), Kishi et al.
patent: 4845643 (1989-07-01), Clapp
patent: 4855939 (1989-08-01), Fitzgerald, Jr. et al.
patent: 4987527 (1991-01-01), Hamada et al.
patent: 5019809 (1991-05-01), Chen
patent: 5019961 (1991-05-01), Addesso et al.
patent: 5124693 (1992-06-01), Himelstein et al.
"HITAC Program Product GRADAS Three-Dimensional Design System HICAD/3D Principles of Operation" (8090-7-034-40), 1988, pp. 150, 154, 155 (Japanese Language Literature).
Bayerl Raymond J.
Hitachi , Ltd.
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