openlayers
Version:
Build tools and sources for developing OpenLayers based mapping applications
62 lines (50 loc) • 1.57 kB
JavaScript
goog.provide('ol.source.OSM');
goog.require('ol');
goog.require('ol.Attribution');
goog.require('ol.source.XYZ');
/**
* @classdesc
* Layer source for the OpenStreetMap tile server.
*
* @constructor
* @extends {ol.source.XYZ}
* @param {olx.source.OSMOptions=} opt_options Open Street Map options.
* @api stable
*/
ol.source.OSM = function(opt_options) {
var options = opt_options || {};
var attributions;
if (options.attributions !== undefined) {
attributions = options.attributions;
} else {
attributions = [ol.source.OSM.ATTRIBUTION];
}
var crossOrigin = options.crossOrigin !== undefined ?
options.crossOrigin : 'anonymous';
var url = options.url !== undefined ?
options.url : 'https://{a-c}.tile.openstreetmap.org/{z}/{x}/{y}.png';
ol.source.XYZ.call(this, {
attributions: attributions,
cacheSize: options.cacheSize,
crossOrigin: crossOrigin,
opaque: options.opaque !== undefined ? options.opaque : true,
maxZoom: options.maxZoom !== undefined ? options.maxZoom : 19,
reprojectionErrorThreshold: options.reprojectionErrorThreshold,
tileLoadFunction: options.tileLoadFunction,
url: url,
wrapX: options.wrapX
});
};
ol.inherits(ol.source.OSM, ol.source.XYZ);
/**
* The attribution containing a link to the OpenStreetMap Copyright and License
* page.
* @const
* @type {ol.Attribution}
* @api
*/
ol.source.OSM.ATTRIBUTION = new ol.Attribution({
html: '© ' +
'<a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> ' +
'contributors.'
});