c2c/co-maps
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Fr4nz D13trich 2025-11-22 13:58:55 +01:00
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commit 68073add76
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libs/geometry/distance_on_sphere.hpp Normal file
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#pragma once
#include "geometry/latlon.hpp"
#include "geometry/point3d.hpp"
// namespace ms - "math on sphere", similar to namespace m2.
namespace ms
{
double constexpr kEarthRadiusMeters = 6378000.0;
// Distance on unit sphere between (lat1, lon1) and (lat2, lon2).
// lat1, lat2, lon1, lon2 - in degrees.
double DistanceOnSphere(double lat1Deg, double lon1Deg, double lat2Deg, double lon2Deg);
// Distance in meteres on Earth between (lat1, lon1) and (lat2, lon2).
// lat1, lat2, lon1, lon2 - in degrees.
double DistanceOnEarth(double lat1Deg, double lon1Deg, double lat2Deg, double lon2Deg);
double DistanceOnEarth(LatLon const & ll1, LatLon const & ll2);
m3::Point<double> ToVector(LatLon const & ll);
} // namespace ms