greatCircle: Great circle
In geosphere: Spherical Trigonometry
greatCircle R Documentation
Great circle
Description
Get points on a great circle as defined by the shortest distance between two specified points
Usage
greatCircle(p1, p2, n=360, sp=FALSE)
Arguments
p1
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
p2
as above
n
The requested number of points on the Great Circle
sp
Logical. Return a SpatialLines object?
Value
A matrix of points, or a list of such matrices (e.g., if multiple bearings are supplied)
Author(s)
Robert Hijmans, based on a formula provided by Ed Williams
References
https://www.edwilliams.org/avform147.htm#Int
Examples
greatCircle(c(5,52), c(-120,37), n=36)
geosphere documentation built on Nov. 16, 2022, 1:06 a.m.
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| greatCircle | R Documentation |
Great circle
Description
Get points on a great circle as defined by the shortest distance between two specified points
Usage
greatCircle(p1, p2, n=360, sp=FALSE)
Arguments
p1 |
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 |
p2 |
as above |
n |
The requested number of points on the Great Circle |
sp |
Logical. Return a SpatialLines object? |
Value
A matrix of points, or a list of such matrices (e.g., if multiple bearings are supplied)
Author(s)
Robert Hijmans, based on a formula provided by Ed Williams
References
https://www.edwilliams.org/avform147.htm#Int
Examples
greatCircle(c(5,52), c(-120,37), n=36)
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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