image thumbnail

updated 1 year ago

Geodesics on an ellipsoid of revolution by Charles Karney

Solutions of the direct and inverse geodesic problems (earth, geodesy, geodesic)

A1m1f(epsi)

A2m1f(epsi)

A3coeff(n)

image thumbnail

updated 1 year ago

Geodesic projections for an ellipsoid by Charles Karney

Four map projections based on geodesics (map projections, geodesics, azimuthal equidistant)

cassini_fwd(lat0, lon0, lat, lon, ellipsoid)

cassini_inv(lat0, lon0, x, y, ellipsoid)

eqdazim_fwd(lat0, lon0, lat, lon, ellipsoid)

Contact us