Distance Along Great Circle Arc
Distance Along Great Circle Arc in degrees, kilometers
GreatDist(LON1, LAT1, LON2, LAT2, EARTHRAD= 6371)
LON1 |
Longitude, point1 |
LAT1 |
Latitude, point1 |
LON2 |
Longitude, point2 |
LAT2 |
Latitude, point2 |
EARTHRAD |
optional earth radius, default = 6371 |
LIST:
drad |
distance in radians |
ddeg |
distance in degrees |
dkm |
distance in kilometers |
Jonathan M. Lees <jonathan.lees@unc.edu>
### get distance between London, England and Santiago, Chile london <- c(51.53333, -0.08333333) santiago <- c(-33.46667, -70.75) GreatDist(london[2], london[1], santiago[2], santiago[1])
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