gcLon: Longitude on a Great Circle
In geosphere: Spherical Trigonometry
gcLon R Documentation
Longitude on a Great Circle
Description
Longitudes at which a great circle crosses a latitude (parallel)
Usage
gcLon(p1, p2, lat)
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
lat
a latitude
Value
vector of two numbers (longitudes)
Author(s)
Robert Hijmans based on code by Ed Williams
References
https://www.edwilliams.org/avform147.htm#Intersection
See Also
gcLat, gcMaxLat
Examples
gcLon(c(5,52), c(-120,37), 40)
geosphere documentation built on Nov. 16, 2022, 1:06 a.m.
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| gcLon | R Documentation |
Longitude on a Great Circle
Description
Longitudes at which a great circle crosses a latitude (parallel)
Usage
gcLon(p1, p2, lat)
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 |
lat |
a latitude |
Value
vector of two numbers (longitudes)
Author(s)
Robert Hijmans based on code by Ed Williams
References
https://www.edwilliams.org/avform147.htm#Intersection
See Also
gcLat, gcMaxLat
Examples
gcLon(c(5,52), c(-120,37), 40)
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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