GEOD(1) PROJ GEOD(1) (NAME) geod - (SYNOPSIS) geod +ellps= [-afFIlptwW [args]] [+opt[=arg] ...] file ... invgeod +ellps= [-afFIlptwW [args]] [+opt[=arg] ...] file ... (DESCRIPTION) geod () invgeod () ( ) () () . |f|<1/50 f (Flattening) . invgeod geod -I . : (OPTIONS) -I . geod invgeod . -a . -t a . -le +ellps= . -lu +units= ( ). -f format printf . DMS . -F format printf . "%.3f" . -w n ( -w3 ). -W n . -W . -p DMS . -f . +opt . . . PROJ . ( ) . - . stdin . . . ( ) DMS . [-90d,90d] . DMS ( -f) "0.001 . . proj +ellps= +a= +es= . geod . +lat_1=lat +lon_1=long +lat_2=lat +lon_2=long +S=distance +A=azimuth . +n_S=integer / +del_S=distance . +del_A=angle +n_A=integer . (EXAMPLES) MA OR : geod +ellps=clrk66 -I +units=us-mi < : -66d31'50.141" 75d39'13.083" 2587.504 . (forward) : geod +ellps=clrk66 +units=us-mi < : 45d31'0.003"N 123d40'59.985"W 75d39'13.094" . : . (FURTHER READING) 1. GeographicLib . 2. . . 87(1) - () . 3. . (SEE ALSO) proj(1), cs2cs(1), cct(1), gie(1), projinfo(1), projsync(1) (BUGS) : . (HOME PAGE) (AUTHOR) Charles Karney (COPYRIGHT) 1983-2026, PROJ contributors 9.8 10 avril 2026 GEOD(1)