From b744c88eb04700d2f29014b0093a1c9fe108c291 Mon Sep 17 00:00:00 2001
From: Suz <s.kiihne@gmail.com>
Date: Fri, 20 Dec 2013 17:27:10 -0800
Subject: [PATCH] fix issue 380 -- added function to parse DMS formatted map
 data (36d 56m 29s S)

---
 src/view.map.js | 37 +++++++++++++++++++++++++++++++++----
 1 file changed, 33 insertions(+), 4 deletions(-)

diff --git a/src/view.map.js b/src/view.map.js
index b4014123..a7af1fcf 100644
--- a/src/view.map.js
+++ b/src/view.map.js
@@ -10,7 +10,7 @@ this.recline.View = this.recline.View || {};
 // This view allows to plot gereferenced records on a map. The location
 // information can be provided in 2 ways:
 //
-// 1. Via a single field. This field must be either a geo_point or 
+// 1. Via a single field. This field must be either a geo_point or
 // [GeoJSON](http://geojson.org) object
 // 2. Via two fields with latitude and longitude coordinates.
 //
@@ -326,6 +326,32 @@ my.Map = Backbone.View.extend({
 
   },
 
+  // Private: convert DMS coordinates to decimal
+  //
+  // north and east are positive, south and west are negative
+  //
+  _parseCoordinateString: function(coord){
+    if (typeof(coord) != 'string') {
+      return(parseFloat(coord));
+    }
+    var dms = coord.split(/[^\.\d\w]+/);
+    console.log(dms);
+    var deg = 0; var m = 0;
+    var toDeg = [1, 60, 3600]; // conversion factors for Deg, min, sec
+    var i; 
+    for (i = 0; i < dms.length; ++i) {
+        if (isNaN(parseFloat(dms[i]))) {
+          continue;
+        }
+        deg += parseFloat(dms[i]) / toDeg[m];
+        m += 1;
+    }
+    if (coord.match(/[SW]/)) {
+          deg = -1*deg;
+    }
+    return(deg);
+  },
+
   // Private: Return a GeoJSON geomtry extracted from the record fields
   //
   _getGeometryFromRecord: function(doc){
@@ -337,12 +363,12 @@ my.Map = Backbone.View.extend({
           value = $.parseJSON(value);
         } catch(e) {}
       }
-
       if (typeof(value) === 'string') {
         value = value.replace('(', '').replace(')', '');
         var parts = value.split(',');
-        var lat = parseFloat(parts[0]);
-        var lon = parseFloat(parts[1]);
+        var lat = this._parseCoordinateString(parts[0]);
+        var lon = this._parseCoordinateString(parts[1]);
+
         if (!isNaN(lon) && !isNaN(parseFloat(lat))) {
           return {
             "type": "Point",
@@ -370,6 +396,9 @@ my.Map = Backbone.View.extend({
       // We'll create a GeoJSON like point object from the two lat/lon fields
       var lon = doc.get(this.state.get('lonField'));
       var lat = doc.get(this.state.get('latField'));
+      lon = this._parseCoordinateString(lon);
+      lat = this._parseCoordinateString(lat);
+
       if (!isNaN(parseFloat(lon)) && !isNaN(parseFloat(lat))) {
         return {
           type: 'Point',