vincentyDistance: Calculate distance between two points along great circle...

In drodriguezperez/whereiam: whereiam: Geolocation package and spherical trigonometry calculations

Description

The function calculates distances between the two points along great circle using the Vincenty's formulae. This is an iterative method which is based on the assumption that the figure of the Earth is an oblate spheroid, and for that reason is more precise than the Spherical Law of Cosines formulae.

Usage

  vincentyDistance(...)

  ## Default S3 method:
 vincentyDistance(latitude1,
    longitude1, latitude2, longitude2, units = "km",
    maxIter = 100, convCrite = 1e-12, ...)

  ## S3 method for class 'Coordinate'
 vincentyDistance(coordinate1,
    coordinate2, units = "km", maxIter = 100,
    convCrite = 1e-12, ...)

Arguments

latitude1	the first latitude coordinate
longitude1	the first longitude coordinate
latitude2	the second latitude coordinate
longitude2	the second longitude coordinate
units	a string with the distance units (default kilometers)
coordinate1	the first coordinate class variable
coordinate2	the second coordinate class variable
maxIter	maximum number of iterations in the calculation
convCrite	convergence criteria for the calculation
...	other arguments

References

http://www.movable-type.co.uk/scripts/latlong-vincenty.html

Examples

cord1    <- Coordinate(43, -8)
cord2    <- Coordinate(42, -7)
distance <- vincentyDistance(cord1, cord2)

drodriguezperez/whereiam documentation built on May 15, 2019, 2:42 p.m.