4a66e4a4d8
Depends on this CL: https://codereview.webrtc.org/1378973003/ Review URL: https://codereview.webrtc.org/1388033002 Cr-Commit-Position: refs/heads/master@{#10330}
64 lines
1.7 KiB
C++
64 lines
1.7 KiB
C++
/*
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* Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_MODULES_AUDIO_PROCESSING_BEAMFORMER_ARRAY_UTIL_H_
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#define WEBRTC_MODULES_AUDIO_PROCESSING_BEAMFORMER_ARRAY_UTIL_H_
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#include <cmath>
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#include <vector>
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namespace webrtc {
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// Coordinates in meters.
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template<typename T>
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struct CartesianPoint {
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CartesianPoint(T x, T y, T z) {
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c[0] = x;
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c[1] = y;
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c[2] = z;
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}
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T x() const { return c[0]; }
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T y() const { return c[1]; }
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T z() const { return c[2]; }
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T c[3];
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};
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using Point = CartesianPoint<float>;
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// Returns the minimum distance between any two Points in the given
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// |array_geometry|.
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float GetMinimumSpacing(const std::vector<Point>& array_geometry);
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template<typename T>
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float Distance(CartesianPoint<T> a, CartesianPoint<T> b) {
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return std::sqrt((a.x() - b.x()) * (a.x() - b.x()) +
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(a.y() - b.y()) * (a.y() - b.y()) +
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(a.z() - b.z()) * (a.z() - b.z()));
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}
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template <typename T>
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struct SphericalPoint {
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SphericalPoint(T azimuth, T elevation, T radius) {
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s[0] = azimuth;
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s[1] = elevation;
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s[2] = radius;
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}
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T azimuth() const { return s[0]; }
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T elevation() const { return s[1]; }
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T distance() const { return s[2]; }
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T s[3];
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};
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using SphericalPointf = SphericalPoint<float>;
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} // namespace webrtc
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#endif // WEBRTC_MODULES_AUDIO_PROCESSING_BEAMFORMER_ARRAY_UTIL_H_
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