Method and apparatus for generating line segments and polygonal

Details Method and apparatus for generating line segments and polygonal Method and apparatus for generating line segments and polygonal

1980-06-02

1984-01-10

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340703, 340750, G09G 116

Patent

active

044255594

ABSTRACT:
A method and apparatus utilizes information describing linear line segments in terms (1) the horizontal scan line scan at which the line segment originates, (2) the horizontal position within the line of the point of origin, (3) the direction of the line segment, and (4) the horizontal scan line at which the line segment terminates to generate line segment information on a raster-scan type video display. The line segments can be combined to form polygonal areas that are capable of movement and changes in size or shape on the display.

REFERENCES:
patent: 3480943 (1969-11-01), Manber
patent: 3537096 (1970-10-01), Hatfield
patent: 3925776 (1975-12-01), Swallow
patent: 3944997 (1976-03-01), Swallow
patent: 4182053 (1980-01-01), Allen et al.
patent: 4199815 (1980-04-01), Kyte et al.
patent: 4209832 (1980-06-01), Gilham et al.

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