Spherical Trigonometry


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Documentation for package ‘geosphere’ version 1.2-19

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geosphere-package Geosphere
alongTrackDistance Along Track Distance
antipodal Antipodes
antipode Antipodes
areaPolygon Compute the areaPolygon of a polygon
areaPolygon-method Compute the areaPolygon of a 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, when following a Great Circle
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
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
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
geosphere Geosphere
greatCircle Great circle
greatCircleBearing Great circle
horizon Distance to the horizon
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 polygon
perimeter-method Compute the perimeter of a polygon
plotArrows Plot
randomCoordinates Random or regularly distributed coordinates on the globe
regularCoordinates Random or regularly distributed coordinates on the globe
span Span of polygons
span-method Span of polygons
wrld World countries