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<!doctype html> <html lang="en"> <head> <title>Code coverage report for ol/geom/flat/closestflatgeom.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/geom/flat/</a> closestflatgeom.js </h1> <div class='clearfix'> <div class='fl pad1y space-right2'> 58% Statements 58/100 </div> <div class='fl pad1y space-right2'> 50% Branches 14/28 </div> <div class='fl pad1y space-right2'> 42.86% Functions 3/7 </div> <div class='fl pad1y space-right2'> 58% Lines 58/100 </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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261</td><td class="line-coverage quiet">1×   1× 1× 1×                             1×   244× 244× 244× 244× 244× 244×     244× 244× 144× 100× 5× 12×     5× 5×   95×     239× 478×   239×                           1×   5× 5× 5× 211× 211× 211× 211× 19×   211× 211×   5×                       1×                                         1×                                                     1×     8×     8× 8×                           8× 8× 8× 8× 244×   244× 244× 113× 113× 228×   113× 113×                       131×         8×                         8×                                   1×                                                           1×                            </td><td class="text"><pre class="prettyprint lang-js">goog.provide('ol.geom.flat.closest');   goog.require('goog.asserts'); goog.require('goog.math'); goog.require('ol.math');     /** * Returns the point on the 2D line segment flatCoordinates[offset1] to * flatCoordinates[offset2] that is closest to the point (x, y). Extra * dimensions are linearly interpolated. * @param {Array.<number>} flatCoordinates Flat coordinates. * @param {number} offset1 Offset 1. * @param {number} offset2 Offset 2. * @param {number} stride Stride. * @param {number} x X. * @param {number} y Y. * @param {Array.<number>} closestPoint Closest point. */ ol.geom.flat.closest.point = function(flatCoordinates, offset1, offset2, stride, x, y, closestPoint) { var x1 = flatCoordinates[offset1]; var y1 = flatCoordinates[offset1 + 1]; var dx = flatCoordinates[offset2] - x1; var dy = flatCoordinates[offset2 + 1] - y1; var i, offset; Iif (dx === 0 && dy === 0) { offset = offset1; } else { var t = ((x - x1) * dx + (y - y1) * dy) / (dx * dx + dy * dy); if (t > 1) { offset = offset2; } else if (t > 0) { for (i = 0; i < stride; ++i) { closestPoint[i] = goog.math.lerp(flatCoordinates[offset1 + i], flatCoordinates[offset2 + i], t); } closestPoint.length = stride; return; } else { offset = offset1; } } for (i = 0; i < stride; ++i) { closestPoint[i] = flatCoordinates[offset + i]; } closestPoint.length = stride; };     /** * Return the squared of the largest distance between any pair of consecutive * coordinates. * @param {Array.<number>} flatCoordinates Flat coordinates. * @param {number} offset Offset. * @param {number} end End. * @param {number} stride Stride. * @param {number} maxSquaredDelta Max squared delta. * @return {number} Max squared delta. */ ol.geom.flat.closest.getMaxSquaredDelta = function(flatCoordinates, offset, end, stride, maxSquaredDelta) { var x1 = flatCoordinates[offset]; var y1 = flatCoordinates[offset + 1]; for (offset += stride; offset < end; offset += stride) { var x2 = flatCoordinates[offset]; var y2 = flatCoordinates[offset + 1]; var squaredDelta = ol.math.squaredDistance(x1, y1, x2, y2); if (squaredDelta > maxSquaredDelta) { maxSquaredDelta = squaredDelta; } x1 = x2; y1 = y2; } return maxSquaredDelta; };     /** * @param {Array.<number>} flatCoordinates Flat coordinates. * @param {number} offset Offset. * @param {Array.<number>} ends Ends. * @param {number} stride Stride. * @param {number} maxSquaredDelta Max squared delta. * @return {number} Max squared delta. */ ol.geom.flat.closest.getsMaxSquaredDelta = function(flatCoordinates, offset, ends, stride, maxSquaredDelta) { var i, ii; for (i = 0, ii = ends.length; i < ii; ++i) { var end = ends[i]; maxSquaredDelta = ol.geom.flat.closest.getMaxSquaredDelta( flatCoordinates, offset, end, stride, maxSquaredDelta); offset = end; } return maxSquaredDelta; };     /** * @param {Array.<number>} flatCoordinates Flat coordinates. * @param {number} offset Offset. * @param {Array.<Array.<number>>} endss Endss. * @param {number} stride Stride. * @param {number} maxSquaredDelta Max squared delta. * @return {number} Max squared delta. */ ol.geom.flat.closest.getssMaxSquaredDelta = function(flatCoordinates, offset, endss, stride, maxSquaredDelta) { var i, ii; for (i = 0, ii = endss.length; i < ii; ++i) { var ends = endss[i]; maxSquaredDelta = ol.geom.flat.closest.getsMaxSquaredDelta( flatCoordinates, offset, ends, stride, maxSquaredDelta); offset = ends[ends.length - 1]; } return maxSquaredDelta; };     /** * @param {Array.<number>} flatCoordinates Flat coordinates. * @param {number} offset Offset. * @param {number} end End. * @param {number} stride Stride. * @param {number} maxDelta Max delta. * @param {boolean} isRing Is ring. * @param {number} x X. * @param {number} y Y. * @param {Array.<number>} closestPoint Closest point. * @param {number} minSquaredDistance Minimum squared distance. * @param {Array.<number>=} opt_tmpPoint Temporary point object. * @return {number} Minimum squared distance. */ ol.geom.flat.closest.getClosestPoint = function(flatCoordinates, offset, end, stride, maxDelta, isRing, x, y, closestPoint, minSquaredDistance, opt_tmpPoint) { Iif (offset == end) { return minSquaredDistance; } var i, squaredDistance; Iif (maxDelta === 0) { // All points are identical, so just test the first point. squaredDistance = ol.math.squaredDistance( x, y, flatCoordinates[offset], flatCoordinates[offset + 1]); if (squaredDistance < minSquaredDistance) { for (i = 0; i < stride; ++i) { closestPoint[i] = flatCoordinates[offset + i]; } closestPoint.length = stride; return squaredDistance; } else { return minSquaredDistance; } } goog.asserts.assert(maxDelta > 0, 'maxDelta should be larger than 0'); var tmpPoint = opt_tmpPoint ? opt_tmpPoint : [NaN, NaN]; var index = offset + stride; while (index < end) { ol.geom.flat.closest.point( flatCoordinates, index - stride, index, stride, x, y, tmpPoint); squaredDistance = ol.math.squaredDistance(x, y, tmpPoint[0], tmpPoint[1]); if (squaredDistance < minSquaredDistance) { minSquaredDistance = squaredDistance; for (i = 0; i < stride; ++i) { closestPoint[i] = tmpPoint[i]; } closestPoint.length = stride; index += stride; } else { // Skip ahead multiple points, because we know that all the skipped // points cannot be any closer than the closest point we have found so // far. We know this because we know how close the current point is, how // close the closest point we have found so far is, and the maximum // distance between consecutive points. For example, if we're currently // at distance 10, the best we've found so far is 3, and that the maximum // distance between consecutive points is 2, then we'll need to skip at // least (10 - 3) / 2 == 3 (rounded down) points to have any chance of // finding a closer point. We use Math.max(..., 1) to ensure that we // always advance at least one point, to avoid an infinite loop. index += stride * Math.max( ((Math.sqrt(squaredDistance) - Math.sqrt(minSquaredDistance)) / maxDelta) | 0, 1); } } Iif (isRing) { // Check the closing segment. ol.geom.flat.closest.point( flatCoordinates, end - stride, offset, stride, x, y, tmpPoint); squaredDistance = ol.math.squaredDistance(x, y, tmpPoint[0], tmpPoint[1]); if (squaredDistance < minSquaredDistance) { minSquaredDistance = squaredDistance; for (i = 0; i < stride; ++i) { closestPoint[i] = tmpPoint[i]; } closestPoint.length = stride; } } return minSquaredDistance; };     /** * @param {Array.<number>} flatCoordinates Flat coordinates. * @param {number} offset Offset. * @param {Array.<number>} ends Ends. * @param {number} stride Stride. * @param {number} maxDelta Max delta. * @param {boolean} isRing Is ring. * @param {number} x X. * @param {number} y Y. * @param {Array.<number>} closestPoint Closest point. * @param {number} minSquaredDistance Minimum squared distance. * @param {Array.<number>=} opt_tmpPoint Temporary point object. * @return {number} Minimum squared distance. */ ol.geom.flat.closest.getsClosestPoint = function(flatCoordinates, offset, ends, stride, maxDelta, isRing, x, y, closestPoint, minSquaredDistance, opt_tmpPoint) { var tmpPoint = opt_tmpPoint ? opt_tmpPoint : [NaN, NaN]; var i, ii; for (i = 0, ii = ends.length; i < ii; ++i) { var end = ends[i]; minSquaredDistance = ol.geom.flat.closest.getClosestPoint( flatCoordinates, offset, end, stride, maxDelta, isRing, x, y, closestPoint, minSquaredDistance, tmpPoint); offset = end; } return minSquaredDistance; };     /** * @param {Array.<number>} flatCoordinates Flat coordinates. * @param {number} offset Offset. * @param {Array.<Array.<number>>} endss Endss. * @param {number} stride Stride. * @param {number} maxDelta Max delta. * @param {boolean} isRing Is ring. * @param {number} x X. * @param {number} y Y. * @param {Array.<number>} closestPoint Closest point. * @param {number} minSquaredDistance Minimum squared distance. * @param {Array.<number>=} opt_tmpPoint Temporary point object. * @return {number} Minimum squared distance. */ ol.geom.flat.closest.getssClosestPoint = function(flatCoordinates, offset, endss, stride, maxDelta, isRing, x, y, closestPoint, minSquaredDistance, opt_tmpPoint) { var tmpPoint = opt_tmpPoint ? opt_tmpPoint : [NaN, NaN]; var i, ii; for (i = 0, ii = endss.length; i < ii; ++i) { var ends = endss[i]; minSquaredDistance = ol.geom.flat.closest.getsClosestPoint( flatCoordinates, offset, ends, stride, maxDelta, isRing, x, y, closestPoint, minSquaredDistance, tmpPoint); offset = ends[ends.length - 1]; } return minSquaredDistance; };  </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>