Spherical Trigonometry

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Documentation for package ‘geosphere’ version 1.5-18

• DESCRIPTION file.
• User guides, package vignettes and other documentation.

Help Pages

geosphere-package	Geosphere
alongTrackDistance	Along Track Distance
antipodal	Antipodes
antipode	Antipodes
areaPolygon	Area of a longitude/latitude polygon
areaPolygon-method	Area of a longitude/latitude polygon
bearing	Direction of travel
bearingRhumb	Rhumbline direction
centroid	Centroid of spherical polygons
centroid-method	Centroid of spherical polygons
daylength	Daylength
destPoint	Destination given bearing (direction) and distance
destPointRhumb	Destination along a rhumb line
dist2gc	Cross Track Distance
dist2Line	Distance between points and lines or the border of polygons.
distCosine	'Law of cosines' great circle distance
distGeo	Distance on an ellipsoid (the geodesic)
distHaversine	'Haversine' great circle distance
distm	Distance matrix
distMeeus	'Meeus' great circle distance
distRhumb	Distance along a rhumb line
distVincentyEllipsoid	'Vincenty' (ellipsoid) great circle distance
distVincentySphere	'Vincenty' (sphere) great circle distance
finalBearing	Final direction
gcIntermediate	Intermediate points on a great circle (sphere)
gcIntersect	Intersections of two great circles
gcIntersectBearing	Intersections of two great circles
gcLat	Latitude on a Great Circle
gcLon	Longitude on a Great Circle
gcMaxLat	Highest latitude on a great circle
geodesic	geodesic and inverse geodesic problem
geodesic_inverse	geodesic and inverse geodesic problem
geomean	Mean location of sperhical coordinates
geosphere	Geosphere
greatCircle	Great circle
greatCircleBearing	Great circle
horizon	Distance to the horizon
lengthLine	Length of lines
makeLine	Add vertices to a polygon or line
makePoly	Add vertices to a polygon or line
merc	World countries
mercator	Mercator projection
midPoint	Mid-point
onGreatCircle	Is a point on a given great circle?
perimeter	Compute the perimeter of a longitude/latitude polygon
perimeter-method	Compute the perimeter of a longitude/latitude polygon
plotArrows	Plot
randomCoordinates	Random or regularly distributed coordinates on the globe
refEllipsoids	Reference ellipsoids
regularCoordinates	Random or regularly distributed coordinates on the globe
span	Span of polygons
span-method	Span of polygons
wrld	World countries