geosphere v1.2-21

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by Robert Hijmans

Spherical Trigonometry

Spherical trigonometry for geographic applications

Functions in geosphere

Name Description
distCosine 'Law of cosines' great circle distance
bearing Direction of travel
distRhumb Distance along a rhumb line
gcIntermediate Intermediate points on a great circle
greatCircleBearing Great circle
distVincentySphere 'Vincenty' (sphere) great circle distance
destPoint Destination given bearing (direction) and distance, when following a Great Circle
midPoint Mid-point
span Span of polygons
dist2gc Cross Track Distance
wrld World countries
onGreatCircle Is a point on a given great circle?
gcLon Longitude on a Great Circle
alongTrackDistance Along Track Distance
areaPolygon Compute the areaPolygon of a polygon
perimeter Compute the perimeter of a polygon
finalBearing Final direction
distm Distance matrix
gcIntersectBearing Intersections of two great circles
plotArrows Plot
greatCircle Great circle
antipode Antipodes
destPointRhumb Destination along a rhumb line
centroid Centroid of spherical polygons
randomCoordinates Random or regularly distributed coordinates on the globe
distMeeus 'Meeus' great circle distance
distHaversine 'Haversine' great circle distance
gcLat Latitude on a Great Circle
makePoly Add vertices to a polygon or line
bearingRhumb Rhumbline direction
distVincentyEllipsoid 'Vincenty' (ellipsoid) great circle distance
daylength Daylength
gcMaxLat Highest latitude on a great circle
geosphere-package Geosphere
dist2Line Distance between points and lines or (the border of) polygons.
gcIntersect Intersections of two great circles
horizon Distance to the horizon
mercator Mercator projection
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Type Package
Date 18-May-2011
License GPL
LazyLoad yes
Repository CRAN
Repository/R-Forge/Project geosphere
Repository/R-Forge/Revision 143
Date/Publication 2011-05-25 06:36:34
Packaged 2011-05-19 21:00:32 UTC; rforge

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