Get spatial coordinate given an origin, a great circle distance and a bearing

Source: R/misc.R

Calculate destination lat/lon given an origin, a great circle distance of travel, and a bearing.

bearing_to_lonlat(origin_lon, origin_lat, bearing, gc_dist)

Arguments

origin_lon

The origin longitude
origin_lat

The origin latitude
bearing

The angle in degrees relative to due north
gc_dist

The great circle distance in (km)

Examples

# one degree longitude is approximately 111km at the equator. Therefore if we
# travel 111km due east from the coordinate {0,0} we can verify that we have
# moved approximately 1 degree longitude and zero degrees latitude
bearing_to_lonlat(0, 0, 90, 111)

#> $longitude
#> [1] 0.998247
#> 
#> $latitude
#> [1] 6.112191e-17
#>