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+// Copyright 2016 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.type;
+
+option go_package = "google.golang.org/genproto/googleapis/type/latlng;latlng";
+option java_multiple_files = true;
+option java_outer_classname = "LatLngProto";
+option java_package = "com.google.type";
+option objc_class_prefix = "GTP";
+
+
+// An object representing a latitude/longitude pair. This is expressed as a pair
+// of doubles representing degrees latitude and degrees longitude. Unless
+// specified otherwise, this must conform to the
+// <a href="http://www.unoosa.org/pdf/icg/2012/template/WGS_84.pdf">WGS84
+// standard</a>. Values must be within normalized ranges.
+//
+// Example of normalization code in Python:
+//
+//     def NormalizeLongitude(longitude):
+//       """Wraps decimal degrees longitude to [-180.0, 180.0]."""
+//       q, r = divmod(longitude, 360.0)
+//       if r > 180.0 or (r == 180.0 and q <= -1.0):
+//         return r - 360.0
+//       return r
+//
+//     def NormalizeLatLng(latitude, longitude):
+//       """Wraps decimal degrees latitude and longitude to
+//       [-90.0, 90.0] and [-180.0, 180.0], respectively."""
+//       r = latitude % 360.0
+//       if r <= 90.0:
+//         return r, NormalizeLongitude(longitude)
+//       elif r >= 270.0:
+//         return r - 360, NormalizeLongitude(longitude)
+//       else:
+//         return 180 - r, NormalizeLongitude(longitude + 180.0)
+//
+//     assert 180.0 == NormalizeLongitude(180.0)
+//     assert -180.0 == NormalizeLongitude(-180.0)
+//     assert -179.0 == NormalizeLongitude(181.0)
+//     assert (0.0, 0.0) == NormalizeLatLng(360.0, 0.0)
+//     assert (0.0, 0.0) == NormalizeLatLng(-360.0, 0.0)
+//     assert (85.0, 180.0) == NormalizeLatLng(95.0, 0.0)
+//     assert (-85.0, -170.0) == NormalizeLatLng(-95.0, 10.0)
+//     assert (90.0, 10.0) == NormalizeLatLng(90.0, 10.0)
+//     assert (-90.0, -10.0) == NormalizeLatLng(-90.0, -10.0)
+//     assert (0.0, -170.0) == NormalizeLatLng(-180.0, 10.0)
+//     assert (0.0, -170.0) == NormalizeLatLng(180.0, 10.0)
+//     assert (-90.0, 10.0) == NormalizeLatLng(270.0, 10.0)
+//     assert (90.0, 10.0) == NormalizeLatLng(-270.0, 10.0)
+message LatLng {
+  // The latitude in degrees. It must be in the range [-90.0, +90.0].
+  double latitude = 1;
+
+  // The longitude in degrees. It must be in the range [-180.0, +180.0].
+  double longitude = 2;
+}