# destPointRhumb

0th

Percentile

##### Destination along a rhumb line

Calculate the destination point when travelling along a 'rhumb line' (loxodrome), given a start point, direction, and distance.

Keywords
spatial
##### Usage
destPointRhumb(p, b, d, r = 6378137)
##### Arguments
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 (default is meters)
r
radius of the earth; default = 6378137 m
##### Value

• Coordinates (longitude/latitude) of a point

##### References

http://williams.best.vwh.net/avform.htm#Rhumb http://www.movable-type.co.uk/scripts/latlong.html http://en.wikipedia.org/wiki/Rhumb_line

destPoint
destPointRhumb(c(0,0), 30, 100000, r = 6378137)