ol.Projection now takes a single argument

which is called ol.ProjectionOptions.

src/ol/projection.exports

@@ -1,4 +1,4 @@
-@exportSymbol ol.Projection
+@exportClass ol.Projection ol.ProjectionOptions
 @exportProperty ol.Projection.prototype.getAxisOrientation
 @exportProperty ol.Projection.prototype.getCode
 @exportProperty ol.Projection.prototype.getExtent

src/ol/projection.js

@@ -46,46 +46,41 @@ ol.METERS_PER_UNIT[ol.ProjectionUnits.METERS] = 1;
 
 /**
  * @constructor
- * @param {string} code Code.
- * @param {ol.ProjectionUnits} units Units.
- * @param {ol.Extent} extent Extent.
- * @param {string=} opt_axisOrientation Axis orientation.
- * @param {boolean=} opt_global Wether the projection is global.
+ * @param {ol.ProjectionOptions} options Options object.
  */
-ol.Projection =
-    function(code, units, extent, opt_axisOrientation, opt_global) {
+ol.Projection = function(options) {
 
   /**
    * @private
    * @type {string}
    */
-  this.code_ = code;
+  this.code_ = options.code;
 
   /**
    * @private
    * @type {ol.ProjectionUnits}
    */
-  this.units_ = units;
+  this.units_ = options.units;
 
   /**
    * @private
    * @type {ol.Extent}
    */
-  this.extent_ = extent;
+  this.extent_ = options.extent;
 
   /**
    * @private
    * @type {string}
    */
-  this.axisOrientation_ = goog.isDef(opt_axisOrientation) ?
-      opt_axisOrientation : 'enu';
+  this.axisOrientation_ = goog.isDef(options.axisOrientation) ?
+      options.axisOrientation : 'enu';
 
   /**
    * @private
-   * @type {string}
+   * @type {boolean}
    */
-  this.global_ = goog.isDef(opt_global) ?
-      opt_global : false;
+  this.global_ = goog.isDef(options.global) ?
+      options.global : false;
 
   /**
    * @private
@@ -188,7 +183,12 @@ ol.Proj4jsProjection_ = function(code, proj4jsProj) {
 
   var units = /** @type {ol.ProjectionUnits} */ (proj4jsProj.units);
 
-  goog.base(this, code, units, null, proj4jsProj.axis);
+  goog.base(this, {
+    code: code,
+    units: units,
+    extent: null,
+    axisOrientation: proj4jsProj.axis
+  });
 
   /**
    * @private

src/ol/projection/epsg3857.js

@@ -15,8 +15,11 @@ goog.require('ol.projection');
  * @param {string} code Code.
  */
 ol.projection.EPSG3857 = function(code) {
-  goog.base(
-      this, code, ol.ProjectionUnits.METERS, ol.projection.EPSG3857.EXTENT);
+  goog.base(this, {
+    code: code,
+    units: ol.ProjectionUnits.METERS,
+    extent: ol.projection.EPSG3857.EXTENT
+  });
 };
 goog.inherits(ol.projection.EPSG3857, ol.Projection);
 

src/ol/projection/epsg4326.js

@@ -14,8 +14,12 @@ goog.require('ol.projection');
  * @param {string=} opt_axisOrientation Axis orientation.
  */
 ol.projection.EPSG4326 = function(code, opt_axisOrientation) {
-  goog.base(this, code, ol.ProjectionUnits.DEGREES,
-      ol.projection.EPSG4326.EXTENT, opt_axisOrientation);
+  goog.base(this, {
+    code: code,
+    units: ol.ProjectionUnits.DEGREES,
+    extent: ol.projection.EPSG4326.EXTENT,
+    axisOrientation: opt_axisOrientation
+  });
 };
 goog.inherits(ol.projection.EPSG4326, ol.Projection);