lonlat_to_bearing.RdCalculate great circle distance and bearing between spatial coordinates.
lonlat_to_bearing(origin_lon, origin_lat, dest_lon, dest_lat)
| origin_lon | the origin longitude |
|---|---|
| origin_lat | the origin latitude |
| dest_lon | the destination longitude |
| dest_lat | the destination latitude |
# one degree longitude should equal approximately 111km at the equator lonlat_to_bearing(0, 0, 1, 0)#> $bearing #> [1] 90 #> #> $gc_dist #> [1] 111.1949 #>