ashatora/openlayers
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

implement getMaxRes, getMaxExtent, getResForZoom

Browse Source
This commit is contained in:
Mike Adair
2012-06-20 08:29:43 -04:00
parent 14b1a34f98
commit 99b397bffc
5 changed files with 150 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
src/ol/Projection.js
View File

@@ -21,15 +21,15 @@ ol.Projection = function(code) {
/**
* @private
* @type {!Object|undefined}
* @type {Object}
*/
this.proj_ = undefined;
this.proj_ = null;
/**
* @private
* @type {!ol.UnreferencedBounds|undefined}
* @type {ol.UnreferencedBounds}
*/
this.extent_ = undefined;
this.extent_ = null;
};
@@ -65,9 +65,18 @@ ol.Projection.prototype.setUnits = function(units) {
/**
* Get the validity extent of the coordinate reference system.
*
* @return {!ol.UnreferencedBounds|undefined} The valididty extent.
* @return {ol.UnreferencedBounds} The valididty extent.
*/
ol.Projection.prototype.getExtent = function() {
if (goog.isNull(this.extent_)) {
var defs = ol.Projection['defaults'][this.code_];
if (goog.isDef(defs)) {
var ext = defs['maxExtent'];
if (goog.isDef(ext)) {
this.setExtent(new ol.UnreferencedBounds(ext[0],ext[1],ext[2],ext[3]));
}
}
}
return this.extent_;
};