geosphere v1.2-21
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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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Details
| 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 |
| depends | base (>= 2.10) , methods , R (>= 2.10) |
| suggests | raster , sp |
| Contributors | Ed Williams, Chris Vennes, Robert Hijmans |
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