112 lines
4.7 KiB
C++
112 lines
4.7 KiB
C++
/*
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Copyright (c) 2013, Project OSRM, Dennis Luxen, others
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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Redistributions of source code must retain the above copyright notice, this list
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of conditions and the following disclaimer.
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Redistributions in binary form must reproduce the above copyright notice, this
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list of conditions and the following disclaimer in the documentation and/or
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other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef FIXED_POINT_COORDINATE_H_
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#define FIXED_POINT_COORDINATE_H_
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#include <iosfwd> //for std::ostream
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#include <string>
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#include <type_traits>
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constexpr float COORDINATE_PRECISION = 1000000.f;
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struct FixedPointCoordinate
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{
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int lat;
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int lon;
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FixedPointCoordinate();
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FixedPointCoordinate(int lat, int lon);
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template<class T>
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FixedPointCoordinate(const T &coordinate) : lat(coordinate.lat), lon(coordinate.lon)
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{
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static_assert(std::is_same<decltype(lat), decltype(coordinate.lat)>::value, "coordinate types incompatible");
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static_assert(std::is_same<decltype(lon), decltype(coordinate.lon)>::value, "coordinate types incompatible");
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}
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void Reset();
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bool isSet() const;
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bool isValid() const;
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bool operator==(const FixedPointCoordinate &other) const;
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static double
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ApproximateDistance(const int lat1, const int lon1, const int lat2, const int lon2);
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static double ApproximateDistance(const FixedPointCoordinate &first_coordinate,
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const FixedPointCoordinate &second_coordinate);
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static float ApproximateEuclideanDistance(const FixedPointCoordinate &first_coordinate,
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const FixedPointCoordinate &second_coordinate);
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static float
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ApproximateEuclideanDistance(const int lat1, const int lon1, const int lat2, const int lon2);
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static float ApproximateSquaredEuclideanDistance(const FixedPointCoordinate &first_coordinate,
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const FixedPointCoordinate &second_coordinate);
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static void convertInternalLatLonToString(const int value, std::string &output);
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static void convertInternalCoordinateToString(const FixedPointCoordinate &coordinate,
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std::string &output);
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static void convertInternalReversedCoordinateToString(const FixedPointCoordinate &coordinate,
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std::string &output);
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static float ComputePerpendicularDistance(const FixedPointCoordinate &segment_source,
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const FixedPointCoordinate &segment_target,
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const FixedPointCoordinate &query_location);
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static float ComputePerpendicularDistance(const FixedPointCoordinate &segment_source,
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const FixedPointCoordinate &segment_target,
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const FixedPointCoordinate &query_location,
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FixedPointCoordinate &nearest_location,
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float &ratio);
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static int
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OrderedPerpendicularDistanceApproximation(const FixedPointCoordinate &segment_source,
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const FixedPointCoordinate &segment_target,
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const FixedPointCoordinate &query_location);
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static float GetBearing(const FixedPointCoordinate &A, const FixedPointCoordinate &B);
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float GetBearing(const FixedPointCoordinate &other) const;
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void Output(std::ostream &out) const;
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static float DegreeToRadian(const float degree);
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static float RadianToDegree(const float radian);
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};
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inline std::ostream &operator<<(std::ostream &out_stream, FixedPointCoordinate const &coordinate)
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{
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coordinate.Output(out_stream);
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return out_stream;
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}
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#endif /* FIXED_POINT_COORDINATE_H_ */
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