Initial implementation of geo.py

lib/xmet/geo.py

@@ -0,0 +1,15 @@
+import re
+import shapely
+
+def load_poly_from_file(path: str) -> shapely.Polygon:
+    points = list()
+
+    with open(path, 'r') as fh:
+        data = fh.read()
+
+        for line in data.split('\n'):
+            lat, lon = re.split(', ', line)
+
+            points.append((float(lon), float(lat)))
+
+    return shapely.Polygon(points)