From 17e8e349ac891dda3bdf7ad3f5842f15251fff9e Mon Sep 17 00:00:00 2001
From: j <0x006A@0x2620.org>
Date: Tue, 23 Nov 2010 10:50:40 +0100
Subject: [PATCH] add location

---
 ox/__init__.py |  2 +-
 ox/location.py | 28 ++++++++++++++++++++++++++++
 2 files changed, 29 insertions(+), 1 deletion(-)
 create mode 100644 ox/location.py

diff --git a/ox/__init__.py b/ox/__init__.py
index 4004411..21f4319 100644
--- a/ox/__init__.py
+++ b/ox/__init__.py
@@ -14,4 +14,4 @@ import net
 
 from torrent import *
 
-
+import location
diff --git a/ox/location.py b/ox/location.py
new file mode 100644
index 0000000..3efc479
--- /dev/null
+++ b/ox/location.py
@@ -0,0 +1,28 @@
+# -*- coding: utf-8 -*-
+# vi:si:et:sw=4:sts=4:ts=4
+import math
+
+
+def center(lat_sw, lng_sw, lat_ne=None, lng_ne=None):
+    if not lat_ne and not lng_ne:
+        return min(lat_sw, lng_sw) + abs(lat_sw-lng_sw)/2
+    else:
+        return (center(lat_sw,lng_sw), center(lat_ne, lng_ne))
+
+def area(lat_sw, lng_sw, lat_ne, lng_ne):
+    return (lat_ne - lat_sw) * (lng_ne - lng_sw)
+
+def latlngspan2latlng(lat, lng, latSpan, lngSpan):
+    return dict(
+        lat_sw = lat - latSpan, lng_sw = lng - lngSpan,
+        lat_ne = lat + latSpan, lng_ne = lng + latSpan
+    )
+
+def parseLocationString(location_string):
+    l = location_string.split('+')
+    if len(l) == 1:
+        l = location_string.split(';')
+    l = [i.strip() for i in l]
+    l = filter(lambda x: x, l)
+    return l
+