Commit f69ba750 authored by Michael Adair's avatar Michael Adair
Browse files

closes #17: add support for decoding URN and URL projection codes

parent e54524b7

lib/proj4js.js

+26 −3
Original line number Diff line number Diff line
@@ -420,7 +420,7 @@ Proj4js.Proj = Proj4js.Class({ 
  /**

   * Property: projName

   * The projection class for this projection, e.g. lcc (lambert conformal conic,

   * or merc for mercator.  These are exactly equicvalent to their Proj4 

   * or merc for mercator).  These are exactly equivalent to their Proj4 

   * counterparts.

   */

  projName: null,
@@ -444,6 +444,29 @@ Proj4js.Proj = Proj4js.Class({ 
  * (but not always) EPSG codes.

  */

  initialize: function(srsCode) {

      this.srsCodeInput = srsCode;

      // DGR 2008-08-03 : support urn and url

      if (srsCode.indexOf('urn:') == 0) {

          //urn:ORIGINATOR:def:crs:CODESPACE:VERSION:ID

          var urn = srsCode.split(':');

          if ((urn[1] == 'ogc' || urn[1] =='x-ogc') &&

              (urn[2] =='def') &&

              (urn[3] =='crs') &&

              urn.length == 7) {

              srsCode = urn[4]+':'+urn[6];

          }

      } else if (srsCode.indexOf('http://') == 0) {

          //url#ID

          var url = srsCode.split('#');

          if (url[0].match(/epsg.org/)) {

            // http://www.epsg.org/#

            srsCode = 'EPSG:'+url[1];

          } else if (url[0].match(/RIG.xml/)) {

            //http://librairies.ign.fr/geoportail/resources/RIG.xml#

            //http://interop.ign.fr/registers/ign/RIG.xml#

            srsCode = 'IGNF:'+url[1];

          }

      }

      this.srsCode = srsCode.toUpperCase();

      if (this.srsCode.indexOf("EPSG") == 0) {

          this.srsCode = this.srsCode;
@@ -888,7 +911,7 @@ Proj4js.common = { 
    return phi;

  },



// Needed for Gauss Laborde

// Needed for Gauss Schreiber

// Original:  Denis Makarov (info@binarythings.com)

// Web Site:  http://www.binarythings.com

  sinh : function(x)
@@ -1340,7 +1363,7 @@ var maxiter = 30; 
Proj4js.Point = Proj4js.Class({



    /**

     * Constructor! Proj4js.Point

     * Constructor: Proj4js.Point

     *

     * Parameters:

     * - x {float} or {Array} either the first coordinates component or