Small Circles and Ellipses

Define small circles and ellipses


ellipse1 Geographic ellipse from center, semimajor axes, eccentricity, and azimuth
gcxsc Intersection points for great and small circle pairs
scircle1 Small circles from center, range, and azimuth
scircle2 Small circles from center and perimeter
scircleg Small circle defined via mouse input
scirclui GUI to display small circles on map axes
scxsc Intersection points for pairs of small circles
sectorg Sector of small circle defined via mouse input


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