openlayers

<!doctype html> <html lang="en"> <head> <title>Code coverage report for ol/source/clustersource.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/source/</a> clustersource.js </h1> <div class='clearfix'> <div class='fl pad1y space-right2'> 31.88% Statements 22/69 </div> <div class='fl pad1y space-right2'> 10% Branches 1/10 </div> <div class='fl pad1y space-right2'> 14.29% Functions 1/7 </div> <div class='fl pad1y space-right2'> 31.88% Lines 22/69 </div> </div> </div> <div class='status-line low'></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</td><td class="line-coverage quiet">      1×   1× 1× 1× 1× 1× 1× 1× 1×                         1× 1×                       1×           1×           1×           1×   1×     1×               1×               1×                               1×                     1×                                                                                                 1×                                </td><td class="text"><pre class="prettyprint lang-js">// FIXME keep cluster cache by resolution ? // FIXME distance not respected because of the centroid   goog.provide('ol.source.Cluster');   goog.require('goog.asserts'); goog.require('goog.events.EventType'); goog.require('goog.object'); goog.require('ol.Feature'); goog.require('ol.coordinate'); goog.require('ol.extent'); goog.require('ol.geom.Point'); goog.require('ol.source.Vector');       /** * @classdesc * Layer source to cluster vector data. * * @constructor * @param {olx.source.ClusterOptions} options * @extends {ol.source.Vector} * @api */ ol.source.Cluster = function(options) { goog.base(this, { attributions: options.attributions, extent: options.extent, logo: options.logo, projection: options.projection, wrapX: options.wrapX });   /** * @type {number|undefined} * @private */ this.resolution_ = undefined;   /** * @type {number} * @private */ this.distance_ = options.distance !== undefined ? options.distance : 20;   /** * @type {Array.<ol.Feature>} * @private */ this.features_ = [];   /** * @type {ol.source.Vector} * @private */ this.source_ = options.source;   this.source_.on(goog.events.EventType.CHANGE, ol.source.Cluster.prototype.onSourceChange_, this); }; goog.inherits(ol.source.Cluster, ol.source.Vector);     /** * Get a reference to the wrapped source. * @return {ol.source.Vector} Source. * @api */ ol.source.Cluster.prototype.getSource = function() { return this.source_; };     /** * @inheritDoc */ ol.source.Cluster.prototype.loadFeatures = function(extent, resolution, projection) { this.source_.loadFeatures(extent, resolution, projection); if (resolution !== this.resolution_) { this.clear(); this.resolution_ = resolution; this.cluster_(); this.addFeatures(this.features_); } };     /** * handle the source changing * @private */ ol.source.Cluster.prototype.onSourceChange_ = function() { this.clear(); this.cluster_(); this.addFeatures(this.features_); this.changed(); };     /** * @private */ ol.source.Cluster.prototype.cluster_ = function() { if (this.resolution_ === undefined) { return; } this.features_.length = 0; var extent = ol.extent.createEmpty(); var mapDistance = this.distance_ * this.resolution_; var features = this.source_.getFeatures();   /** * @type {Object.<string, boolean>} */ var clustered = {};   for (var i = 0, ii = features.length; i < ii; i++) { var feature = features[i]; if (!goog.object.containsKey(clustered, goog.getUid(feature).toString())) { var geometry = feature.getGeometry(); goog.asserts.assert(geometry instanceof ol.geom.Point, 'feature geometry is a ol.geom.Point instance'); var coordinates = geometry.getCoordinates(); ol.extent.createOrUpdateFromCoordinate(coordinates, extent); ol.extent.buffer(extent, mapDistance, extent);   var neighbors = this.source_.getFeaturesInExtent(extent); goog.asserts.assert(neighbors.length >= 1, 'at least one neighbor found'); neighbors = neighbors.filter(function(neighbor) { var uid = goog.getUid(neighbor).toString(); if (!goog.object.containsKey(clustered, uid)) { clustered[uid] = true; return true; } else { return false; } }); this.features_.push(this.createCluster_(neighbors)); } } goog.asserts.assert( goog.object.getCount(clustered) == this.source_.getFeatures().length, 'number of clustered equals number of features in the source'); };     /** * @param {Array.<ol.Feature>} features Features * @return {ol.Feature} * @private */ ol.source.Cluster.prototype.createCluster_ = function(features) { var length = features.length; var centroid = [0, 0]; for (var i = 0; i < length; i++) { var geometry = features[i].getGeometry(); goog.asserts.assert(geometry instanceof ol.geom.Point, 'feature geometry is a ol.geom.Point instance'); var coordinates = geometry.getCoordinates(); ol.coordinate.add(centroid, coordinates); } ol.coordinate.scale(centroid, 1 / length);   var cluster = new ol.Feature(new ol.geom.Point(centroid)); cluster.set('features', features); return cluster; };  </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>