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<!doctype html> <html lang="en"> <head> <title>Code coverage report for ol/control/scalelinecontrol.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/control/</a> scalelinecontrol.js </h1> <div class='clearfix'> <div class='fl pad1y space-right2'> 33.81% Statements 47/139 </div> <div class='fl pad1y space-right2'> 11.11% Branches 8/72 </div> <div class='fl pad1y space-right2'> 66.67% Functions 4/6 </div> <div class='fl pad1y space-right2'> 33.81% Lines 47/139 </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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339</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×           1×             1×             1×           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">goog.provide('ol.control.ScaleLine'); goog.provide('ol.control.ScaleLineProperty'); goog.provide('ol.control.ScaleLineUnits');   goog.require('goog.asserts'); goog.require('goog.dom'); goog.require('goog.events'); goog.require('goog.style'); goog.require('ol'); goog.require('ol.Object'); goog.require('ol.TransformFunction'); goog.require('ol.control.Control'); goog.require('ol.css'); goog.require('ol.math'); goog.require('ol.proj'); goog.require('ol.proj.METERS_PER_UNIT'); goog.require('ol.proj.Units'); goog.require('ol.sphere.NORMAL');     /** * @enum {string} */ ol.control.ScaleLineProperty = { UNITS: 'units' };     /** * Units for the scale line. Supported values are `'degrees'`, `'imperial'`, * `'nautical'`, `'metric'`, `'us'`. * @enum {string} * @api stable */ ol.control.ScaleLineUnits = { DEGREES: 'degrees', IMPERIAL: 'imperial', NAUTICAL: 'nautical', METRIC: 'metric', US: 'us' };       /** * @classdesc * A control displaying rough x-axis distances, calculated for the center of the * viewport. * No scale line will be shown when the x-axis distance cannot be calculated in * the view projection (e.g. at or beyond the poles in EPSG:4326). * By default the scale line will show in the bottom left portion of the map, * but this can be changed by using the css selector `.ol-scale-line`. * * @constructor * @extends {ol.control.Control} * @param {olx.control.ScaleLineOptions=} opt_options Scale line options. * @api stable */ ol.control.ScaleLine = function(opt_options) {   var options = opt_options ? opt_options : {};   var className = options.className ? options.className : 'ol-scale-line';   /** * @private * @type {Element} */ this.innerElement_ = goog.dom.createDom('DIV', className + '-inner');   /** * @private * @type {Element} */ this.element_ = goog.dom.createDom('DIV', className + ' ' + ol.css.CLASS_UNSELECTABLE, this.innerElement_);   /** * @private * @type {?olx.ViewState} */ this.viewState_ = null;   /** * @private * @type {number} */ this.minWidth_ = options.minWidth !== undefined ? options.minWidth : 64;   /** * @private * @type {boolean} */ this.renderedVisible_ = false;   /** * @private * @type {number|undefined} */ this.renderedWidth_ = undefined;   /** * @private * @type {string} */ this.renderedHTML_ = '';   /** * @private * @type {?ol.TransformFunction} */ this.toEPSG4326_ = null;   var render = options.render ? options.render : ol.control.ScaleLine.render;   goog.base(this, { element: this.element_, render: render, target: options.target });   goog.events.listen( this, ol.Object.getChangeEventType(ol.control.ScaleLineProperty.UNITS), this.handleUnitsChanged_, false, this);   this.setUnits(/** @type {ol.control.ScaleLineUnits} */ (options.units) || ol.control.ScaleLineUnits.METRIC);   }; goog.inherits(ol.control.ScaleLine, ol.control.Control);     /** * @const * @type {Array.<number>} */ ol.control.ScaleLine.LEADING_DIGITS = [1, 2, 5];     /** * Return the units to use in the scale line. * @return {ol.control.ScaleLineUnits|undefined} The units to use in the scale * line. * @observable * @api stable */ ol.control.ScaleLine.prototype.getUnits = function() { return /** @type {ol.control.ScaleLineUnits|undefined} */ ( this.get(ol.control.ScaleLineProperty.UNITS)); };     /** * Update the scale line element. * @param {ol.MapEvent} mapEvent Map event. * @this {ol.control.ScaleLine} * @api */ ol.control.ScaleLine.render = function(mapEvent) { var frameState = mapEvent.frameState; if (!frameState) { this.viewState_ = null; } else { this.viewState_ = frameState.viewState; } this.updateElement_(); };     /** * @private */ ol.control.ScaleLine.prototype.handleUnitsChanged_ = function() { this.updateElement_(); };     /** * Set the units to use in the scale line. * @param {ol.control.ScaleLineUnits} units The units to use in the scale line. * @observable * @api stable */ ol.control.ScaleLine.prototype.setUnits = function(units) { this.set(ol.control.ScaleLineProperty.UNITS, units); };     /** * @private */ ol.control.ScaleLine.prototype.updateElement_ = function() { var viewState = this.viewState_;   Eif (!viewState) { Iif (this.renderedVisible_) { goog.style.setElementShown(this.element_, false); this.renderedVisible_ = false; } return; }   var center = viewState.center; var projection = viewState.projection; var pointResolution = projection.getPointResolution(viewState.resolution, center); var projectionUnits = projection.getUnits();   var cosLatitude; var units = this.getUnits(); if (projectionUnits == ol.proj.Units.DEGREES && (units == ol.control.ScaleLineUnits.METRIC || units == ol.control.ScaleLineUnits.IMPERIAL || units == ol.control.ScaleLineUnits.US || units == ol.control.ScaleLineUnits.NAUTICAL)) {   // Convert pointResolution from degrees to meters this.toEPSG4326_ = null; cosLatitude = Math.cos(ol.math.toRadians(center[1])); pointResolution *= Math.PI * cosLatitude * ol.sphere.NORMAL.radius / 180; projectionUnits = ol.proj.Units.METERS;   } else if (projectionUnits != ol.proj.Units.DEGREES && units == ol.control.ScaleLineUnits.DEGREES) {   // Convert pointResolution from other units to degrees if (!this.toEPSG4326_) { this.toEPSG4326_ = ol.proj.getTransformFromProjections( projection, ol.proj.get('EPSG:4326')); } cosLatitude = Math.cos(ol.math.toRadians(this.toEPSG4326_(center)[1])); var radius = ol.sphere.NORMAL.radius; goog.asserts.assert(ol.proj.METERS_PER_UNIT[projectionUnits], 'Meters per unit should be defined for the projection unit'); radius /= ol.proj.METERS_PER_UNIT[projectionUnits]; pointResolution *= 180 / (Math.PI * cosLatitude * radius); projectionUnits = ol.proj.Units.DEGREES;   } else { this.toEPSG4326_ = null; }   goog.asserts.assert( ((units == ol.control.ScaleLineUnits.METRIC || units == ol.control.ScaleLineUnits.IMPERIAL || units == ol.control.ScaleLineUnits.US || units == ol.control.ScaleLineUnits.NAUTICAL) && projectionUnits == ol.proj.Units.METERS) || (units == ol.control.ScaleLineUnits.DEGREES && projectionUnits == ol.proj.Units.DEGREES), 'Scale line units and projection units should match');   var nominalCount = this.minWidth_ * pointResolution; var suffix = ''; if (units == ol.control.ScaleLineUnits.DEGREES) { if (nominalCount < 1 / 60) { suffix = '\u2033'; // seconds pointResolution *= 3600; } else if (nominalCount < 1) { suffix = '\u2032'; // minutes pointResolution *= 60; } else { suffix = '\u00b0'; // degrees } } else if (units == ol.control.ScaleLineUnits.IMPERIAL) { if (nominalCount < 0.9144) { suffix = 'in'; pointResolution /= 0.0254; } else if (nominalCount < 1609.344) { suffix = 'ft'; pointResolution /= 0.3048; } else { suffix = 'mi'; pointResolution /= 1609.344; } } else if (units == ol.control.ScaleLineUnits.NAUTICAL) { pointResolution /= 1852; suffix = 'nm'; } else if (units == ol.control.ScaleLineUnits.METRIC) { if (nominalCount < 1) { suffix = 'mm'; pointResolution *= 1000; } else if (nominalCount < 1000) { suffix = 'm'; } else { suffix = 'km'; pointResolution /= 1000; } } else if (units == ol.control.ScaleLineUnits.US) { if (nominalCount < 0.9144) { suffix = 'in'; pointResolution *= 39.37; } else if (nominalCount < 1609.344) { suffix = 'ft'; pointResolution /= 0.30480061; } else { suffix = 'mi'; pointResolution /= 1609.3472; } } else { goog.asserts.fail('Scale line element cannot be updated'); }   var i = 3 * Math.floor( Math.log(this.minWidth_ * pointResolution) / Math.log(10)); var count, width; while (true) { count = ol.control.ScaleLine.LEADING_DIGITS[i % 3] * Math.pow(10, Math.floor(i / 3)); width = Math.round(count / pointResolution); if (isNaN(width)) { goog.style.setElementShown(this.element_, false); this.renderedVisible_ = false; return; } else if (width >= this.minWidth_) { break; } ++i; }   var html = count + ' ' + suffix; if (this.renderedHTML_ != html) { this.innerElement_.innerHTML = html; this.renderedHTML_ = html; }   if (this.renderedWidth_ != width) { this.innerElement_.style.width = width + 'px'; this.renderedWidth_ = width; }   if (!this.renderedVisible_) { goog.style.setElementShown(this.element_, true); this.renderedVisible_ = true; }   };  </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(); 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