openlayers

<!doctype html> <html lang="en"> <head> <title>Code coverage report for ol/renderer/canvas/canvasimagelayerrenderer.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/renderer/canvas/</a> canvasimagelayerrenderer.js </h1> <div class='clearfix'> <div class='fl pad1y space-right2'> 26.6% Statements 25/94 </div> <div class='fl pad1y space-right2'> 0% Branches 0/31 </div> <div class='fl pad1y space-right2'> 14.29% Functions 1/7 </div> <div class='fl pad1y space-right2'> 26.6% Lines 25/94 </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</td><td class="line-coverage quiet">1×   1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1×                 1×   3×           3×           3×           3×           3×     1×           1×                                           1×                                                                                                     1×               1×               1×                                                                                                                                          </td><td class="text"><pre class="prettyprint lang-js">goog.provide('ol.renderer.canvas.ImageLayer');   goog.require('goog.asserts'); goog.require('goog.functions'); goog.require('goog.vec.Mat4'); goog.require('ol.ImageBase'); goog.require('ol.ViewHint'); goog.require('ol.dom'); goog.require('ol.extent'); goog.require('ol.layer.Image'); goog.require('ol.proj'); goog.require('ol.renderer.canvas.Layer'); goog.require('ol.source.ImageVector'); goog.require('ol.vec.Mat4');       /** * @constructor * @extends {ol.renderer.canvas.Layer} * @param {ol.layer.Image} imageLayer Single image layer. */ ol.renderer.canvas.ImageLayer = function(imageLayer) {   goog.base(this, imageLayer);   /** * @private * @type {?ol.ImageBase} */ this.image_ = null;   /** * @private * @type {!goog.vec.Mat4.Number} */ this.imageTransform_ = goog.vec.Mat4.createNumber();   /** * @private * @type {?goog.vec.Mat4.Number} */ this.imageTransformInv_ = null;   /** * @private * @type {CanvasRenderingContext2D} */ this.hitCanvasContext_ = null;   }; goog.inherits(ol.renderer.canvas.ImageLayer, ol.renderer.canvas.Layer);     /** * @inheritDoc */ ol.renderer.canvas.ImageLayer.prototype.forEachFeatureAtCoordinate = function(coordinate, frameState, callback, thisArg) { var layer = this.getLayer(); var source = layer.getSource(); var resolution = frameState.viewState.resolution; var rotation = frameState.viewState.rotation; var skippedFeatureUids = frameState.skippedFeatureUids; return source.forEachFeatureAtCoordinate( coordinate, resolution, rotation, skippedFeatureUids, /** * @param {ol.Feature|ol.render.Feature} feature Feature. * @return {?} Callback result. */ function(feature) { return callback.call(thisArg, feature, layer); }); };     /** * @inheritDoc */ ol.renderer.canvas.ImageLayer.prototype.forEachLayerAtPixel = function(pixel, frameState, callback, thisArg) { if (!this.getImage()) { return undefined; }   if (this.getLayer().getSource() instanceof ol.source.ImageVector) { // for ImageVector sources use the original hit-detection logic, // so that for example also transparent polygons are detected var coordinate = pixel.slice(); ol.vec.Mat4.multVec2( frameState.pixelToCoordinateMatrix, coordinate, coordinate); var hasFeature = this.forEachFeatureAtCoordinate( coordinate, frameState, goog.functions.TRUE, this);   if (hasFeature) { return callback.call(thisArg, this.getLayer()); } else { return undefined; } } else { // for all other image sources directly check the image if (!this.imageTransformInv_) { this.imageTransformInv_ = goog.vec.Mat4.createNumber(); goog.vec.Mat4.invert(this.imageTransform_, this.imageTransformInv_); }   var pixelOnCanvas = this.getPixelOnCanvas(pixel, this.imageTransformInv_);   if (!this.hitCanvasContext_) { this.hitCanvasContext_ = ol.dom.createCanvasContext2D(1, 1); }   this.hitCanvasContext_.clearRect(0, 0, 1, 1); this.hitCanvasContext_.drawImage( this.getImage(), pixelOnCanvas[0], pixelOnCanvas[1], 1, 1, 0, 0, 1, 1);   var imageData = this.hitCanvasContext_.getImageData(0, 0, 1, 1).data; if (imageData[3] > 0) { return callback.call(thisArg, this.getLayer()); } else { return undefined; } } };     /** * @inheritDoc */ ol.renderer.canvas.ImageLayer.prototype.getImage = function() { return !this.image_ ? null : this.image_.getImage(); };     /** * @inheritDoc */ ol.renderer.canvas.ImageLayer.prototype.getImageTransform = function() { return this.imageTransform_; };     /** * @inheritDoc */ ol.renderer.canvas.ImageLayer.prototype.prepareFrame = function(frameState, layerState) {   var pixelRatio = frameState.pixelRatio; var viewState = frameState.viewState; var viewCenter = viewState.center; var viewResolution = viewState.resolution; var viewRotation = viewState.rotation;   var image; var imageLayer = this.getLayer(); goog.asserts.assertInstanceof(imageLayer, ol.layer.Image, 'layer is an instance of ol.layer.Image'); var imageSource = imageLayer.getSource();   var hints = frameState.viewHints;   var renderedExtent = frameState.extent; if (layerState.extent !== undefined) { renderedExtent = ol.extent.getIntersection( renderedExtent, layerState.extent); }   if (!hints[ol.ViewHint.ANIMATING] && !hints[ol.ViewHint.INTERACTING] && !ol.extent.isEmpty(renderedExtent)) { var projection = viewState.projection; if (!ol.ENABLE_RASTER_REPROJECTION) { var sourceProjection = imageSource.getProjection(); if (sourceProjection) { goog.asserts.assert(ol.proj.equivalent(projection, sourceProjection), 'projection and sourceProjection are equivalent'); projection = sourceProjection; } } image = imageSource.getImage( renderedExtent, viewResolution, pixelRatio, projection); if (image) { var loaded = this.loadImage(image); if (loaded) { this.image_ = image; } } }   if (this.image_) { image = this.image_; var imageExtent = image.getExtent(); var imageResolution = image.getResolution(); var imagePixelRatio = image.getPixelRatio(); var xImageResolution = imageResolution[0]; var yImageResolution = imageResolution[1]; var xScale = pixelRatio * xImageResolution / (viewResolution * imagePixelRatio); var yScale = pixelRatio * yImageResolution / (viewResolution * imagePixelRatio); ol.vec.Mat4.makeTransform2D(this.imageTransform_, pixelRatio * frameState.size[0] / 2, pixelRatio * frameState.size[1] / 2, xScale, yScale, viewRotation, imagePixelRatio * (imageExtent[0] - viewCenter[0]) / xImageResolution, imagePixelRatio * (viewCenter[1] - imageExtent[3]) / yImageResolution); this.imageTransformInv_ = null; this.updateAttributions(frameState.attributions, image.getAttributions()); this.updateLogos(frameState, imageSource); }   return 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(); } }; </script> <script src="../../../sorter.js"></script> </body> </html>