edsc-geo is a utility library for working with spherical coordinates, polygons, and arcs in Javascript.
The edsc-geo plugin was developed as a component of Earthdata Search.
npm install @edsc/geo-utils
Method | Description | Input | Output |
---|---|---|---|
dividePolygon | Given a list of latlngs constituting a polygon, returns an object: {interiors: [...], boundaries: [...]} |
Array of latlngs | {interiors: [...], boundaries: [...]} |
gcInterpolate | Given two points, returns their midpoint along the shortest great circle between them. The two points may not be antipodal, since such a midpoint would be undefined | Two points, objects with lat/lng keys | Object with lat/lng keys |
getShape | Takes an array of lat/lng pairs and returns array of objects with lat/lng keys | Array of lat/lng pairs ['10,0','20,10'] |
Array of objects with lat/lng keys [{ lat: 0, lng: 10 }, { lat: 10, lng: 20 }] |
makeCounterClockwise | Ensures that latlngs is counterclockwise around its smallest area | Array of latlngs | Array of latlngs |
mbr | Finds the minimum bounding rectangle of the provided spatial | Spatial object containing boundingBox , circle , point or polygon spatial |
{ swLat, swLng, neLat, neLng } |
splitListOfPoints | Splits a string of points on every other comma | '10,0,20,10' |
['10,0','20,10'] |
See CONTRIBUTING.md
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Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
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