geosphere1.5-20 package

Spherical Trigonometry

alongTrackDistance

Along Track Distance

antipode

Antipodes

area

Area of a longitude/latitude polygon

bearing

Direction of travel

bearingRhumb

Rhumbline direction

centroid

Centroid of spherical polygons

data

World countries

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

finalDirection

Final direction

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

geomean

Mean location of sperhical coordinates

geosphere-package

Geosphere

greatCircle

Great circle

greatCircleBearing

Great circle

horizon

Distance to the horizon

intermediate

Intermediate points on a great circle (sphere)

lengthLine

Length of lines

makepoly

Add vertices to a polygon or line

mercator

Mercator projection

midPoint

Mid-point

onGreatCircle

Is a point on a given great circle?

OSGB

Ordnance Survey for Great Britain grid reference system

perimeter

Compute the perimeter of a longitude/latitude polygon

plotArrows

Plot

randomCoordinates

Random or regularly distributed coordinates on the globe

refEllipsoids

Reference ellipsoids

span

Span of polygons

Spherical trigonometry for geographic applications. That is, compute distances and related measures for angular (longitude/latitude) locations.

  • Maintainer: Robert J. Hijmans
  • License: GPL (>= 3)
  • Last published: 2024-10-04