From facf5fb7a60be0364595a2a3813c553ee985a68e Mon Sep 17 00:00:00 2001
From: Katie Filbert <filbertk@gmail.com>
Date: Sat, 1 Dec 2012 17:49:56 +0100
Subject: hospitals in the layer

---
 resources/map.js        | 19 +++++++++++--------
 resources/op2geojson.js | 32 ++++++++++++++++++--------------
 2 files changed, 29 insertions(+), 22 deletions(-)

diff --git a/resources/map.js b/resources/map.js
index e5c9b06..e6878ca 100644
--- a/resources/map.js
+++ b/resources/map.js
@@ -16,15 +16,18 @@ $(document).ready(function() {
 	initLayerControl();
 
 	function geojsonLayer() {
+        url = "http://overpass-api.de/api/interpreter?data=[out:json];node[amenity=hospital](52.34,13.3,52.52,13.6);out;";
 		converter = new op2geojson();
-		data = converter.geojson();
-		var style = {
-			"color": "#ff7800",
-			"weight" : 5,
-			"opacity" : 0.65
-		};
-		layer = L.geoJson(data, style);
-		return layer;
+		converter.fetch(url, function(data) {
+			console.log(data);
+			var style = {
+				"color": "#ff7800",
+				"weight" : 5,
+				"opacity" : 0.65
+			};
+			layer = L.geoJson(data, style);
+			return layer;
+		});
 	}
 
 	function fetchLayers() {
diff --git a/resources/op2geojson.js b/resources/op2geojson.js
index 8850fa9..1285fc1 100644
--- a/resources/op2geojson.js
+++ b/resources/op2geojson.js
@@ -5,42 +5,46 @@ op2geojson = function() {
 	var instance = {},
 		geojson;
 
-	instance.fetch = function(url) {
-    	$.getJSON("http://overpass-api.de/api/interpreter?data=[out:json];node[amenity=hospital](52.34,13.3,52.52,13.6);out;", {
-				format: "json"
-			},
+	instance.fetch = function(url, callback) {
+    	$.getJSON(url, { format: "json" },
 			function(data) {
-				$.each(data, function(i, item) {
-					console.log(item);
+				var features = [];
+				$.each(data.elements, function(i, item) {
+					if( item.type === 'node' ) {
+						features.push( instance.point(item) );
+					}
 				});
+				geojson = instance.featureCollection(features);
+				callback(geojson);
 			}
 		);
 	};
 
-	instance.feature = function() {
+	instance.point = function(node) {
 		point = {
+			"type" : "Feature",
 			"geometry" : {
 				"type" : "Point",
-				"coordinates" : [13.3172386,52.480732]
+				"coordinates" : [node.lon,node.lat]
 			},
-			"type" : "Feature",
 			"properties" : { "name" : "Sankt Gertrauden-Krankenhaus" },
 		};
 		return point;
 	}
 
-	instance.featureCollection = function() {
+	instance.featureCollection = function(features) {
 		collection = {
 			"type" : "FeatureCollection",
-			"features" : [
-				instance.feature(),
-			]
+			"features" : features
 		};
 		return collection;
 	}
 
 	instance.geojson = function() {
-		return instance.featureCollection();
+		url = "http://overpass-api.de/api/interpreter?data=[out:json];node[amenity=hospital](52.34,13.3,52.52,13.6);out;";
+		instance.fetch(url, function(data) {
+			return data;
+		});
 	}
 
 	return instance;
-- 
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