Destination along a rhumb line
Calculate the destination point when travelling along a 'rhumb line' (loxodrome), given a start point, direction, and distance.
destPointRhumb(p, b, d, r = 6378137)
p |
longitude/latitude of point(s). Can be a vector of two numbers, a matrix of 2 columns (first one is longitude, second is latitude) or a SpatialPoints* object |
b |
bearing (direction) in degrees |
d |
distance; in the same unit as |
r |
radius of the earth; default = 6378137 m |
Coordinates (longitude/latitude) of a point
Chris Veness; ported to R by Robert Hijmans
destPointRhumb(c(0,0), 30, 100000, r = 6378137)
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