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<!doctype html> <html lang="en"> <head> <title>Code coverage report for ol/math.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/</a> math.js </h1> <div class='clearfix'> <div class='fl pad1y space-right2'> 95.38% Statements 62/65 </div> <div class='fl pad1y space-right2'> 83.33% Branches 15/18 </div> <div class='fl pad1y space-right2'> 100% Functions 9/9 </div> <div class='fl pad1y space-right2'> 95.38% Lines 62/65 </div> </div> </div> <div class='status-line high'></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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182</td><td class="line-coverage quiet">1×   1×                     1× 7541×                         1×     1× 1×         1× 595× 595×     1×               1× 19× 17×                             1× 1750× 1750× 1750× 1745× 1745×     1745× 1741× 1741×     1750×                       1× 2432× 2432× 2432×                     1× 206×   206× 206× 820×         204×   814× 814× 814× 1218× 1218× 1× 1×       814× 1×       813× 813× 813×     813× 1218× 1218× 5274× 1218×   4056×             203× 203× 811× 811× 1215×     203×                   1× 3×                   1× 4077×    </td><td class="text"><pre class="prettyprint lang-js">goog.provide('ol.math');   goog.require('goog.asserts');     /** * Takes a number and clamps it to within the provided bounds. * @param {number} value The input number. * @param {number} min The minimum value to return. * @param {number} max The maximum value to return. * @return {number} The input number if it is within bounds, or the nearest * number within the bounds. */ ol.math.clamp = function(value, min, max) { return Math.min(Math.max(value, min), max); };     /** * Return the hyperbolic cosine of a given number. The method will use the * native `Math.cosh` function if it is available, otherwise the hyperbolic * cosine will be calculated via the reference implementation of the Mozilla * developer network. * * @param {number} x X. * @return {number} Hyperbolic cosine of x. */ ol.math.cosh = (function() { // Wrapped in a iife, to save the overhead of checking for the native // implementation on every invocation. var cosh; Iif ('cosh' in Math) { // The environment supports the native Math.cosh function, use it… cosh = Math.cosh; } else { // … else, use the reference implementation of MDN: cosh = function(x) { var y = Math.exp(x); return (y + 1 / y) / 2; }; } return cosh; }());     /** * @param {number} x X. * @return {number} The smallest power of two greater than or equal to x. */ ol.math.roundUpToPowerOfTwo = function(x) { goog.asserts.assert(0 < x, 'x should be larger than 0'); return Math.pow(2, Math.ceil(Math.log(x) / Math.LN2)); };     /** * Returns the square of the closest distance between the point (x, y) and the * line segment (x1, y1) to (x2, y2). * @param {number} x X. * @param {number} y Y. * @param {number} x1 X1. * @param {number} y1 Y1. * @param {number} x2 X2. * @param {number} y2 Y2. * @return {number} Squared distance. */ ol.math.squaredSegmentDistance = function(x, y, x1, y1, x2, y2) { var dx = x2 - x1; var dy = y2 - y1; if (dx !== 0 || dy !== 0) { var t = ((x - x1) * dx + (y - y1) * dy) / (dx * dx + dy * dy); Iif (t > 1) { x1 = x2; y1 = y2; } else if (t > 0) { x1 += dx * t; y1 += dy * t; } } return ol.math.squaredDistance(x, y, x1, y1); };     /** * Returns the square of the distance between the points (x1, y1) and (x2, y2). * @param {number} x1 X1. * @param {number} y1 Y1. * @param {number} x2 X2. * @param {number} y2 Y2. * @return {number} Squared distance. */ ol.math.squaredDistance = function(x1, y1, x2, y2) { var dx = x2 - x1; var dy = y2 - y1; return dx * dx + dy * dy; };     /** * Solves system of linear equations using Gaussian elimination method. * * @param {Array.<Array.<number>>} mat Augmented matrix (n x n + 1 column) * in row-major order. * @return {Array.<number>} The resulting vector. */ ol.math.solveLinearSystem = function(mat) { var n = mat.length;   Eif (goog.asserts.ENABLE_ASSERTS) { for (var row = 0; row < n; row++) { goog.asserts.assert(mat[row].length == n + 1, 'every row should have correct number of columns'); } }   for (var i = 0; i < n; i++) { // Find max in the i-th column (ignoring i - 1 first rows) var maxRow = i; var maxEl = Math.abs(mat[i][i]); for (var r = i + 1; r < n; r++) { var absValue = Math.abs(mat[r][i]); if (absValue > maxEl) { maxEl = absValue; maxRow = r; } }   if (maxEl === 0) { return null; // matrix is singular }   // Swap max row with i-th (current) row var tmp = mat[maxRow]; mat[maxRow] = mat[i]; mat[i] = tmp;   // Subtract the i-th row to make all the remaining rows 0 in the i-th column for (var j = i + 1; j < n; j++) { var coef = -mat[j][i] / mat[i][i]; for (var k = i; k < n + 1; k++) { if (i == k) { mat[j][k] = 0; } else { mat[j][k] += coef * mat[i][k]; } } } }   // Solve Ax=b for upper triangular matrix A (mat) var x = new Array(n); for (var l = n - 1; l >= 0; l--) { x[l] = mat[l][n] / mat[l][l]; for (var m = l - 1; m >= 0; m--) { mat[m][n] -= mat[m][l] * x[l]; } } return x; };     /** * Converts radians to to degrees. * * @param {number} angleInRadians Angle in radians. * @return {number} Angle in degrees. */ ol.math.toDegrees = function(angleInRadians) { return angleInRadians * 180 / Math.PI; };     /** * Converts degrees to radians. * * @param {number} angleInDegrees Angle in degrees. * @return {number} Angle in radians. */ ol.math.toRadians = function(angleInDegrees) { return angleInDegrees * Math.PI / 180; };  </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>