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18 lines
649 B
C++
18 lines
649 B
C++
#pragma once
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#include "geometry/latlon.hpp"
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// namespace ms - "math on sphere", similar to namespace m2.
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namespace ms
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{
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double constexpr kEarthRadiusMeters = 6378000.0;
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// Distance on unit sphere between (lat1, lon1) and (lat2, lon2).
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// lat1, lat2, lon1, lon2 - in degrees.
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double DistanceOnSphere(double lat1Deg, double lon1Deg, double lat2Deg, double lon2Deg);
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// Distance in meteres on Earth between (lat1, lon1) and (lat2, lon2).
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// lat1, lat2, lon1, lon2 - in degrees.
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double DistanceOnEarth(double lat1Deg, double lon1Deg, double lat2Deg, double lon2Deg);
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double DistanceOnEarth(LatLon const & ll1, LatLon const & ll2);
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} // namespace ms
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