154 lines
4.7 KiB
JavaScript
154 lines
4.7 KiB
JavaScript
goog.provide('ol.source.BingMaps');
|
|
|
|
goog.require('goog.Uri');
|
|
goog.require('goog.array');
|
|
goog.require('goog.asserts');
|
|
goog.require('goog.net.Jsonp');
|
|
goog.require('ol.Attribution');
|
|
goog.require('ol.TileRange');
|
|
goog.require('ol.TileUrlFunction');
|
|
goog.require('ol.extent');
|
|
goog.require('ol.proj');
|
|
goog.require('ol.source.TileImage');
|
|
goog.require('ol.tilegrid.XYZ');
|
|
|
|
|
|
|
|
/**
|
|
* @constructor
|
|
* @extends {ol.source.TileImage}
|
|
* @param {ol.source.BingMapsOptions} options Bing Maps options.
|
|
*/
|
|
ol.source.BingMaps = function(options) {
|
|
|
|
goog.base(this, {
|
|
crossOrigin: 'anonymous',
|
|
opaque: true,
|
|
projection: ol.proj.get('EPSG:3857')
|
|
});
|
|
|
|
/**
|
|
* @private
|
|
* @type {string}
|
|
*/
|
|
this.culture_ = goog.isDef(options.culture) ? options.culture : 'en-us';
|
|
|
|
/**
|
|
* @private
|
|
* @type {boolean}
|
|
*/
|
|
this.ready_ = false;
|
|
|
|
var uri = new goog.Uri(
|
|
'//dev.virtualearth.net/REST/v1/Imagery/Metadata/' + options.style);
|
|
var jsonp = new goog.net.Jsonp(uri, 'jsonp');
|
|
jsonp.send({
|
|
'include': 'ImageryProviders',
|
|
'key': options.key
|
|
}, goog.bind(this.handleImageryMetadataResponse, this));
|
|
|
|
};
|
|
goog.inherits(ol.source.BingMaps, ol.source.TileImage);
|
|
|
|
|
|
/**
|
|
* @param {BingMapsImageryMetadataResponse} response Response.
|
|
*/
|
|
ol.source.BingMaps.prototype.handleImageryMetadataResponse =
|
|
function(response) {
|
|
|
|
goog.asserts.assert(
|
|
response.authenticationResultCode == 'ValidCredentials');
|
|
goog.asserts.assert(response.statusCode == 200);
|
|
goog.asserts.assert(response.statusDescription == 'OK');
|
|
|
|
var brandLogoUri = response.brandLogoUri;
|
|
//var copyright = response.copyright; // FIXME do we need to display this?
|
|
goog.asserts.assert(response.resourceSets.length == 1);
|
|
var resourceSet = response.resourceSets[0];
|
|
goog.asserts.assert(resourceSet.resources.length == 1);
|
|
var resource = resourceSet.resources[0];
|
|
|
|
var tileGrid = new ol.tilegrid.XYZ({
|
|
minZoom: resource.zoomMin,
|
|
maxZoom: resource.zoomMax,
|
|
tileSize: [resource.imageWidth, resource.imageHeight]
|
|
});
|
|
this.tileGrid = tileGrid;
|
|
|
|
var culture = this.culture_;
|
|
this.tileUrlFunction = ol.TileUrlFunction.withTileCoordTransform(
|
|
tileGrid.createTileCoordTransform(),
|
|
ol.TileUrlFunction.createFromTileUrlFunctions(
|
|
goog.array.map(
|
|
resource.imageUrlSubdomains,
|
|
function(subdomain) {
|
|
var imageUrl = resource.imageUrl
|
|
.replace('{subdomain}', subdomain)
|
|
.replace('{culture}', culture);
|
|
return (
|
|
/**
|
|
* @this {ol.source.BingMaps}
|
|
* @param {ol.TileCoord} tileCoord Tile coordinate.
|
|
* @param {ol.proj.Projection} projection Projection.
|
|
* @return {string|undefined} Tile URL.
|
|
*/
|
|
function(tileCoord, projection) {
|
|
goog.asserts.assert(ol.proj.equivalent(
|
|
projection, this.getProjection()));
|
|
if (goog.isNull(tileCoord)) {
|
|
return undefined;
|
|
} else {
|
|
return imageUrl.replace(
|
|
'{quadkey}', tileCoord.quadKey());
|
|
}
|
|
});
|
|
})));
|
|
|
|
var transform = ol.proj.getTransformFromProjections(
|
|
ol.proj.get('EPSG:4326'), this.getProjection());
|
|
var attributions = goog.array.map(
|
|
resource.imageryProviders,
|
|
function(imageryProvider) {
|
|
var html = imageryProvider.attribution;
|
|
/** @type {Object.<string, Array.<ol.TileRange>>} */
|
|
var tileRanges = {};
|
|
goog.array.forEach(
|
|
imageryProvider.coverageAreas,
|
|
function(coverageArea) {
|
|
var minZ = coverageArea.zoomMin;
|
|
var maxZ = coverageArea.zoomMax;
|
|
var bbox = coverageArea.bbox;
|
|
var epsg4326Extent = [bbox[1], bbox[3], bbox[0], bbox[2]];
|
|
var extent = ol.extent.transform(epsg4326Extent, transform);
|
|
var tileRange, z, zKey;
|
|
for (z = minZ; z <= maxZ; ++z) {
|
|
zKey = z.toString();
|
|
tileRange = tileGrid.getTileRangeForExtentAndZ(extent, z);
|
|
if (zKey in tileRanges) {
|
|
tileRanges[zKey].push(tileRange);
|
|
} else {
|
|
tileRanges[zKey] = [tileRange];
|
|
}
|
|
}
|
|
});
|
|
return new ol.Attribution({html: html, tileRanges: tileRanges});
|
|
});
|
|
this.setAttributions(attributions);
|
|
|
|
this.setLogo(brandLogoUri);
|
|
|
|
this.ready_ = true;
|
|
|
|
this.dispatchChangeEvent();
|
|
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.source.BingMaps.prototype.isReady = function() {
|
|
return this.ready_;
|
|
};
|