added high accuracy to geolocation

src/javascript/controllers/HeightMapViewController.js

@@ -36,11 +36,16 @@ class HeightMapViewController extends UIViewController {
 
 	capture() {
 		navigator.geolocation.getCurrentPosition(position => {
+			if (position.coords.accuracy)
 			this.addPoint(new GeoPoint(
 				position.coords.latitude,
 				position.coords.longitude,
 				position.coords.altitude
-			));
+			), error => console.log(error), {
+				timeout            : 0,
+				enableHighAccuracy : true,
+				maximumAge         : Infinity
+			});
 		});
 /*		this.addPoint(new GeoPoint(
 			Std.Random(136, 150),