Graphics vector generator setup technique

Details Graphics vector generator setup technique Graphics vector generator setup technique

1989-10-17

1991-09-10

Herndon, Heather R.

Boots, shoes, and leggings

340724, 382 45, G06F 1520

Patent

active

050479547

ABSTRACT:
Method and apparatus for setting up a graphics vector generator. Computing values representative of difference functions between delta Y values and delta X values for a vector to be drawn; storing such functions; and storing a sign of said difference functions for controlling X, Y, swap and multiplex operations. An X, Y, swap for swapping x values and Y values in response to said sign storage to present a larger of an X function or a Y function to a control means for controlling a number of iterations in generation of a vector and iteration counter for controlling a number of iterations in generation of a vector.

REFERENCES:
patent: 4056713 (1977-11-01), Quinn
patent: 4074359 (1978-02-01), Hasenbalg
patent: 4272808 (1981-06-01), Hartwig
patent: 4607340 (1986-08-01), Nagai
patent: 4649506 (1987-03-01), Van Den Heuvel
Llewelyn et al., "Generation of Points Using Bresenham's Algorithm", IBM Technical Disclosure Bulletin, vol. 20, No. 9, Feb. 1978, pp. 3703-3706.

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