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? |

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 |

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