closes #12

--- projCode/eqc.js	1970-01-01 01:00:00.000000000 +0100

+++ projCode/eqc.js	2008-06-11 21:16:31.000000000 +0200

@@ -0,0 +1,42 @@

+/* similar to equi.js FIXME proj4 uses eqc */

+Proj4js.Proj.eqc = {

+  init : function() {

+

+      if(!this.x0) this.x0=0;

+      if(!this.y0) this.y0=0;

+      if(!this.lat0) this.lat0=0;

+      if(!this.long0) this.long0=0;

+      if(!this.lat_ts) this.lat_ts=0;

+      if (!this.title) this.title = "Equidistant Cylindrical (Plate Carre)";

+

+      this.rc= Math.cos(this.lat_ts);

+    },

+

+

+    // forward equations--mapping lat,long to x,y

+    // -----------------------------------------------------------------

+    forward : function(p) {

+

+      var lon= p.x;

+      var lat= p.y;

+

+      var dlon = Proj4js.common.adjust_lon(lon - this.long0);

+      var dlat = Proj4js.common.adjust_lat(lat - this.lat0 );

+      p.x= this.x0 + (this.a*dlon*this.rc);

+      p.y= this.y0 + (this.a*dlat        );

+      return p;

+    },

+

+  // inverse equations--mapping x,y to lat/long

+  // -----------------------------------------------------------------

+  inverse : function(p) {

+

+    var x= p.x;

+    var y= p.y;

+

+    p.x= Proj4js.common.adjust_lon(this.long0 + ((x - this.x0)/(this.a*this.rc)));

+    p.y= Proj4js.common.adjust_lat(this.lat0  + ((y - this.y0)/(this.a        )));

+    return p;

+  }

+

+};