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<!doctype html> <html lang="en"> <head> <title>Code coverage report for ol/geom/flat/orientflatgeom.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> orientflatgeom.js </h1> <div class='clearfix'> <div class='fl pad1y space-right2'> 100% Statements 49/49 </div> <div class='fl pad1y space-right2'> 100% Branches 32/32 </div> <div class='fl pad1y space-right2'> 100% Functions 5/5 </div> <div class='fl pad1y space-right2'> 100% Lines 49/49 </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</td><td class="line-coverage quiet">1×   1× 1×                   1×       668× 668× 668× 668× 46377× 46377× 46377× 46377× 46377×   668×                                 1×   100× 100× 100× 162× 162×   162× 100× 19×     62× 4×     139×   77×                                 1×   17× 17× 27×   5×     12×                                 1×   68× 68× 68× 144× 144×   144×     144× 65×   144×   68×                                 1×   19× 19× 32×     19×    </td><td class="text"><pre class="prettyprint lang-js">goog.provide('ol.geom.flat.orient');   goog.require('ol'); goog.require('ol.geom.flat.reverse');     /** * @param {Array.<number>} flatCoordinates Flat coordinates. * @param {number} offset Offset. * @param {number} end End. * @param {number} stride Stride. * @return {boolean} Is clockwise. */ ol.geom.flat.orient.linearRingIsClockwise = function(flatCoordinates, offset, end, stride) { // http://tinyurl.com/clockwise-method // https://github.com/OSGeo/gdal/blob/trunk/gdal/ogr/ogrlinearring.cpp var edge = 0; var x1 = flatCoordinates[end - stride]; var y1 = flatCoordinates[end - stride + 1]; for (; offset < end; offset += stride) { var x2 = flatCoordinates[offset]; var y2 = flatCoordinates[offset + 1]; edge += (x2 - x1) * (y2 + y1); x1 = x2; y1 = y2; } return edge > 0; };     /** * Determines if linear rings are oriented. By default, left-hand orientation * is tested (first ring must be clockwise, remaining rings counter-clockwise). * To test for right-hand orientation, use the `opt_right` argument. * * @param {Array.<number>} flatCoordinates Flat coordinates. * @param {number} offset Offset. * @param {Array.<number>} ends Array of end indexes. * @param {number} stride Stride. * @param {boolean=} opt_right Test for right-hand orientation * (counter-clockwise exterior ring and clockwise interior rings). * @return {boolean} Rings are correctly oriented. */ ol.geom.flat.orient.linearRingsAreOriented = function(flatCoordinates, offset, ends, stride, opt_right) { var right = opt_right !== undefined ? opt_right : false; var i, ii; for (i = 0, ii = ends.length; i < ii; ++i) { var end = ends[i]; var isClockwise = ol.geom.flat.orient.linearRingIsClockwise( flatCoordinates, offset, end, stride); if (i === 0) { if ((right && isClockwise) || (!right && !isClockwise)) { return false; } } else { if ((right && !isClockwise) || (!right && isClockwise)) { return false; } } offset = end; } return true; };     /** * Determines if linear rings are oriented. By default, left-hand orientation * is tested (first ring must be clockwise, remaining rings counter-clockwise). * To test for right-hand orientation, use the `opt_right` argument. * * @param {Array.<number>} flatCoordinates Flat coordinates. * @param {number} offset Offset. * @param {Array.<Array.<number>>} endss Array of array of end indexes. * @param {number} stride Stride. * @param {boolean=} opt_right Test for right-hand orientation * (counter-clockwise exterior ring and clockwise interior rings). * @return {boolean} Rings are correctly oriented. */ ol.geom.flat.orient.linearRingssAreOriented = function(flatCoordinates, offset, endss, stride, opt_right) { var i, ii; for (i = 0, ii = endss.length; i < ii; ++i) { if (!ol.geom.flat.orient.linearRingsAreOriented( flatCoordinates, offset, endss[i], stride, opt_right)) { return false; } } return true; };     /** * Orient coordinates in a flat array of linear rings. By default, rings * are oriented following the left-hand rule (clockwise for exterior and * counter-clockwise for interior rings). To orient according to the * right-hand rule, use the `opt_right` argument. * * @param {Array.<number>} flatCoordinates Flat coordinates. * @param {number} offset Offset. * @param {Array.<number>} ends Ends. * @param {number} stride Stride. * @param {boolean=} opt_right Follow the right-hand rule for orientation. * @return {number} End. */ ol.geom.flat.orient.orientLinearRings = function(flatCoordinates, offset, ends, stride, opt_right) { var right = opt_right !== undefined ? opt_right : false; var i, ii; for (i = 0, ii = ends.length; i < ii; ++i) { var end = ends[i]; var isClockwise = ol.geom.flat.orient.linearRingIsClockwise( flatCoordinates, offset, end, stride); var reverse = i === 0 ? (right && isClockwise) || (!right && !isClockwise) : (right && !isClockwise) || (!right && isClockwise); if (reverse) { ol.geom.flat.reverse.coordinates(flatCoordinates, offset, end, stride); } offset = end; } return offset; };     /** * Orient coordinates in a flat array of linear rings. By default, rings * are oriented following the left-hand rule (clockwise for exterior and * counter-clockwise for interior rings). To orient according to the * right-hand rule, use the `opt_right` argument. * * @param {Array.<number>} flatCoordinates Flat coordinates. * @param {number} offset Offset. * @param {Array.<Array.<number>>} endss Array of array of end indexes. * @param {number} stride Stride. * @param {boolean=} opt_right Follow the right-hand rule for orientation. * @return {number} End. */ ol.geom.flat.orient.orientLinearRingss = function(flatCoordinates, offset, endss, stride, opt_right) { var i, ii; for (i = 0, ii = endss.length; i < ii; ++i) { offset = ol.geom.flat.orient.orientLinearRings( flatCoordinates, offset, endss[i], stride, opt_right); } return offset; };  </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>