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All functions

GridLat-class
A grid and lattice combination
crs_120E
Asia-centred coordinate reference system
crs_Atlantic
Atlantic-centred coordinate reference system
crs_N
Arctic-centred coordinate reference system
crs_Pacific
Pacific-centred coordinate reference system
crs_S
Antarctic-centred coordinate reference system
crs_longlat
Lat-long coordinate reference system
find_leg()
Find best non-stop route between 2 airports
find_route()
Find best route between 2 airports
find_routes()
Find best routes between airport-pair & aircraft combinations
hm_clean_cache()
Clean the route and SID-STAR cache.
hm_get_test()
Get test data
hm_load_cache()
Load route and SID/STAR cache
hm_save_cache()
Save route and SID/STAR cache to file
mach_kph
Speed of sound, for Mach to km conversion
make_AP2()
Make airport-pair dataset
make_aircraft()
Make aircraft data from minimum dataset
make_airports()
Make or load airport data
make_route_envelope()
Make range-constrained envelope between 2 airports
make_route_grid()
Make lat-long grid for route finding
map_routes()
Map a set of routes
profile_routes()
Profile a set of routes
st_window()
Version of st_transform with view window to avoid dateline
summarise_routes()
Summarise a set of routes