Figure processing with magnification of designated portion of di

Details Figure processing with magnification of designated portion of di Figure processing with magnification of designated portion of di

1991-08-02

1997-01-21

Jankus, Almis R.

395139, 395147, 395155, G06T 300

Patent

active

055966896

ABSTRACT:
A change in magnification of a figure pattern within a predetermined area is performed by designating a desired rectangular frame or one point on a screen, A plurality of menus associated with figure processes are performed by interruption,

REFERENCES:
patent: 4622641 (1986-11-01), Stephens
patent: 4899292 (1990-02-01), Montagna et al.
patent: 4907095 (1990-03-01), Komura
patent: 5199102 (1993-03-01), Sakuragi
Newman et al., Principles of Interactive Computer Graphics, 2nd. ed., pp. 74-76 and 160-171 1983.
Shneiderman, "Designing Menu Selection Systems", Journal of Amer. Soc. for Information Science, Mar. 1986, pp. 57-70.
Foley et al., Fundametnals of Interactive Computer Graphics, 1982, pp. 40-43 and 78-87.
Ellis, "Postscript.RTM., Bezier Curves, and Chinese Characters", ACM Computer Science Conf. (1989) 21-23 Feb., New York, pp. 162-165.

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