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<!doctype html> <html lang="en"> <head> <title>Code coverage report for ol/sphere/sphere.js</title> <meta charset="utf-8" /> <link rel="stylesheet" href="../../prettify.css" /> <link rel="stylesheet" href="../../base.css" /> <meta name="viewport" content="width=device-width, initial-scale=1"> <style type='text/css'> .coverage-summary .sorter { background-image: url(../../sort-arrow-sprite.png); } </style> </head> <body> <div class='wrapper'> <div class='pad1'> <h1> <a href="../../index.html">all files</a> / <a href="index.html">ol/sphere/</a> sphere.js </h1> <div class='clearfix'> <div class='fl pad1y space-right2'> 78.57% Statements 22/28 </div> <div class='fl pad1y space-right2'> 100% Branches 0/0 </div> <div class='fl pad1y space-right2'> 75% Functions 3/4 </div> <div class='fl pad1y space-right2'> 78.57% Lines 22/28 </div> </div> </div> <div class='status-line medium'></div> <pre><table class="coverage"> <tr><td class="line-count quiet">1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111</td><td class="line-coverage quiet">              1×   1×                                       1×         3×                                     1× 1× 1× 1× 1× 326× 326×     326× 326×   1×                       1× 987× 987× 987× 987× 987×     987×                         1×                        </td><td class="text"><pre class="prettyprint lang-js">/** * @license * Latitude/longitude spherical geodesy formulae taken from * http://www.movable-type.co.uk/scripts/latlong.html * Licensed under CC-BY-3.0. */   goog.provide('ol.Sphere');   goog.require('ol.math');       /** * @classdesc * Class to create objects that can be used with {@link * ol.geom.Polygon.circular}. * * For example to create a sphere whose radius is equal to the semi-major * axis of the WGS84 ellipsoid: * * ```js * var wgs84Sphere= new ol.Sphere(6378137); * ``` * * @constructor * @param {number} radius Radius. * @api */ ol.Sphere = function(radius) {   /** * @type {number} */ this.radius = radius;   };     /** * Returns the geodesic area for a list of coordinates. * * [Reference](http://trs-new.jpl.nasa.gov/dspace/handle/2014/40409) * Robert. G. Chamberlain and William H. Duquette, "Some Algorithms for * Polygons on a Sphere", JPL Publication 07-03, Jet Propulsion * Laboratory, Pasadena, CA, June 2007 * * @param {Array.<ol.Coordinate>} coordinates List of coordinates of a linear * ring. If the ring is oriented clockwise, the area will be positive, * otherwise it will be negative. * @return {number} Area. * @api */ ol.Sphere.prototype.geodesicArea = function(coordinates) { var area = 0, len = coordinates.length; var x1 = coordinates[len - 1][0]; var y1 = coordinates[len - 1][1]; for (var i = 0; i < len; i++) { var x2 = coordinates[i][0], y2 = coordinates[i][1]; area += ol.math.toRadians(x2 - x1) * (2 + Math.sin(ol.math.toRadians(y1)) + Math.sin(ol.math.toRadians(y2))); x1 = x2; y1 = y2; } return area * this.radius * this.radius / 2.0; };     /** * Returns the distance from c1 to c2 using the haversine formula. * * @param {ol.Coordinate} c1 Coordinate 1. * @param {ol.Coordinate} c2 Coordinate 2. * @return {number} Haversine distance. * @api */ ol.Sphere.prototype.haversineDistance = function(c1, c2) { var lat1 = ol.math.toRadians(c1[1]); var lat2 = ol.math.toRadians(c2[1]); var deltaLatBy2 = (lat2 - lat1) / 2; var deltaLonBy2 = ol.math.toRadians(c2[0] - c1[0]) / 2; var a = Math.sin(deltaLatBy2) * Math.sin(deltaLatBy2) + Math.sin(deltaLonBy2) * Math.sin(deltaLonBy2) * Math.cos(lat1) * Math.cos(lat2); return 2 * this.radius * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a)); };     /** * Returns the coordinate at the given distance and bearing from `c1`. * * @param {ol.Coordinate} c1 The origin point (`[lon, lat]` in degrees). * @param {number} distance The great-circle distance between the origin * point and the target point. * @param {number} bearing The bearing (in radians). * @return {ol.Coordinate} The target point. */ ol.Sphere.prototype.offset = function(c1, distance, bearing) { var lat1 = ol.math.toRadians(c1[1]); var lon1 = ol.math.toRadians(c1[0]); var dByR = distance / this.radius; var lat = Math.asin( Math.sin(lat1) * Math.cos(dByR) + Math.cos(lat1) * Math.sin(dByR) * Math.cos(bearing)); var lon = lon1 + Math.atan2( Math.sin(bearing) * Math.sin(dByR) * Math.cos(lat1), Math.cos(dByR) - Math.sin(lat1) * Math.sin(lat)); return [ol.math.toDegrees(lon), ol.math.toDegrees(lat)]; };  </pre></td></tr> </table></pre> <div class='push'></div> </div> <div class='footer quiet pad2 space-top1 center small'> Code coverage generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Fri Nov 06 2015 19:36:11 GMT+0100 (CET) </div> </div> <script src="../../prettify.js"></script> <script> window.onload = function () { if (typeof prettyPrint === 'function') { prettyPrint(); } }; </script> <script src="../../sorter.js"></script> </body> </html>