Created SphericalPoint in array_util.h

webrtc/modules/audio_processing/beamformer/array_util.h

 /*
  *  Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #ifndef WEBRTC_MODULES_AUDIO_PROCESSING_BEAMFORMER_ARRAY_UTIL_H_
 #define WEBRTC_MODULES_AUDIO_PROCESSING_BEAMFORMER_ARRAY_UTIL_H_
 
 #include <cmath>
 
 namespace webrtc {
 
 // Coordinates in meters.
 template<typename T>
 struct CartesianPoint {
   CartesianPoint(T x, T y, T z) {
     c[0] = x;
     c[1] = y;
     c[2] = z;
   }
-  T x() const {
-    return c[0];
-  }
-  T y() const {
-    return c[1];
-  }
-  T z() const {
-    return c[2];
-  }
+  T x() const { return c[0]; }
+  T y() const { return c[1]; }
+  T z() const { return c[2]; }
   T c[3];
 };
 
-typedef CartesianPoint<float> Point;
+using Point = CartesianPoint<float>;
 
 template<typename T>
 float Distance(CartesianPoint<T> a, CartesianPoint<T> b) {
   return std::sqrt((a.x() - b.x()) * (a.x() - b.x()) +
                    (a.y() - b.y()) * (a.y() - b.y()) +
                    (a.z() - b.z()) * (a.z() - b.z()));
 }
 
+template <typename T>
+struct SphericalPoint {
+  SphericalPoint(T azimuth, T elevation, T radius) {
+    s[0] = azimuth;
+    s[1] = elevation;
+    s[2] = radius;
+  }
+  T azimuth() const { return s[0]; }
+  T elevation() const { return s[1]; }
+  T distance() const { return s[2]; }
+  T s[3];
+};
+
+using SphericalPointf = SphericalPoint<float>;
+
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_AUDIO_PROCESSING_BEAMFORMER_ARRAY_UTIL_H_