Refactor projection architecture

2013-02-13 15:33:39 +01:00
parent 9053e1dfc8
commit 6b26cbfb38
9 changed files with 202 additions and 157 deletions
@@ -0,0 +1,42 @@
+goog.provide('ol.projection.EPSG4326');
+
+goog.require('ol.Extent');
+goog.require('ol.Projection');
+goog.require('ol.ProjectionUnits');
+
+
+
+/**
+ * @constructor
+ * @extends {ol.Projection}
+ * @param {string} code Code.
+ * @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.inherits(ol.projection.EPSG4326, ol.Projection);
+
+
+/**
+ * Extent of the EPSG:4326 projection which is the whole world.
+ *
+ * @const
+ * @type {ol.Extent}
+ */
+ol.projection.EPSG4326.EXTENT = new ol.Extent(-180, -90, 180, 90);
+
+
+/**
+ * Projections equal to EPSG:4326.
+ *
+ * @const
+ * @type {Array.<ol.Projection>}
+ */
+ol.projection.EPSG4326.PROJECTIONS = [
+  new ol.projection.EPSG4326('CRS:84'),
+  new ol.projection.EPSG4326('EPSG:4326', 'neu'),
+  new ol.projection.EPSG4326('urn:ogc:def:crs:EPSG:6.6:4326', 'neu'),
+  new ol.projection.EPSG4326('urn:ogc:def:crs:OGC:1.3:CRS84')
+];