G - Physics – 09 – G
Patent
G - Physics
09
G
375/21
G09G 1/16 (2006.01) G09G 5/20 (2006.01)
Patent
CA 1263775
ABSTRACT OF THE DISCLOSURE Method and apparatus for setting up a graphics vector generator includes means for computing values representative of difference functions between delta Y values and delta X values for a vector to be drawn; means for storing such functions; means for storing a sign of said difference functions for controlling X, Y, swap and multiplex operations; X, Y, swap means 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 means for controlling a number of iterations in generation of a vector.
523772
Corona James
Lindgren Terence W.
International Business Machines Corporation
Saunders Raymond H.
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