From c5ebd534b22e991183ca565585851193a685bd2a Mon Sep 17 00:00:00 2001
From: Sergey Kruk <sergey.kruk@gmail.com>
Date: Mon, 1 Dec 2014 16:02:43 +0300
Subject: [PATCH] Factory L.latLng to accept altitude as third parameter or an
 object's 'alt' property

---
 spec/suites/geo/LatLngSpec.js | 9 +++++++++
 src/geo/LatLng.js             | 6 +++---
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/spec/suites/geo/LatLngSpec.js b/spec/suites/geo/LatLngSpec.js
index 1c050df0..bca6c31c 100644
--- a/spec/suites/geo/LatLngSpec.js
+++ b/spec/suites/geo/LatLngSpec.js
@@ -103,6 +103,15 @@ describe('LatLng', function () {
 		it('returns null if lng not specified', function () {
 			expect(L.latLng(50)).to.be(null);
 		});
+
+		it('accepts altitude as third parameter', function () {
+			expect(L.latLng(50, 30, 100)).to.eql(new L.LatLng(50, 30, 100));
+		});
+
+		it('accepts an object with alt', function () {
+			expect(L.latLng({lat: 50, lng: 30, alt:100})).to.eql(new L.LatLng(50, 30, 100));
+			expect(L.latLng({lat: 50, lon: 30, alt:100})).to.eql(new L.LatLng(50, 30, 100));
+		});
 	});
 });
 
diff --git a/src/geo/LatLng.js b/src/geo/LatLng.js
index f56de668..0e451597 100644
--- a/src/geo/LatLng.js
+++ b/src/geo/LatLng.js
@@ -56,7 +56,7 @@ L.LatLng.prototype = {
 // constructs LatLng with different signatures
 // (LatLng) or ([Number, Number]) or (Number, Number) or (Object)
 
-L.latLng = function (a, b) {
+L.latLng = function (a, b, c) {
 	if (a instanceof L.LatLng) {
 		return a;
 	}
@@ -70,11 +70,11 @@ L.latLng = function (a, b) {
 		return a;
 	}
 	if (typeof a === 'object' && 'lat' in a) {
-		return new L.LatLng(a.lat, 'lng' in a ? a.lng : a.lon);
+		return new L.LatLng(a.lat, 'lng' in a ? a.lng : a.lon, a.alt);
 	}
 	if (b === undefined) {
 		return null;
 	}
-	return new L.LatLng(a, b);
+	return new L.LatLng(a, b, c);
 };