Elliptical arc generator for display systems

Details Elliptical arc generator for display systems Elliptical arc generator for display systems

G - Physics

06

F

375/36

G06F 1/03 (2006.01) G09G 5/20 (2006.01)

Patent

CA 1331059

ABSTRACT A symbol generator useful for stroke based and raster display systems provides the ability of generating ellipses and elliptical arc segments. A look-up table provides cosine and sine values for incremental angles which are multiplied by major and minor axis scale factors for a selected ellipse. Global input parameters permit rotation of all arcs and vectors to generate orthogonal projections, thereby producing 2-D and 3-D symbology.

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