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Diffstat (limited to 'boost/geometry/strategies/geographic/azimuth.hpp')
-rw-r--r-- | boost/geometry/strategies/geographic/azimuth.hpp | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/boost/geometry/strategies/geographic/azimuth.hpp b/boost/geometry/strategies/geographic/azimuth.hpp new file mode 100644 index 0000000000..47f59d1033 --- /dev/null +++ b/boost/geometry/strategies/geographic/azimuth.hpp @@ -0,0 +1,103 @@ +// Boost.Geometry (aka GGL, Generic Geometry Library) + +// Copyright (c) 2016-2017 Oracle and/or its affiliates. +// Contributed and/or modified by Vissarion Fisikopoulos, on behalf of Oracle +// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle + +// Use, modification and distribution is subject to the Boost Software License, +// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at +// http://www.boost.org/LICENSE_1_0.txt) + +#ifndef BOOST_GEOMETRY_STRATEGIES_GEOGRAPHIC_AZIMUTH_HPP +#define BOOST_GEOMETRY_STRATEGIES_GEOGRAPHIC_AZIMUTH_HPP + + +#include <boost/geometry/core/srs.hpp> + +#include <boost/geometry/strategies/azimuth.hpp> +#include <boost/geometry/strategies/geographic/parameters.hpp> + +#include <boost/mpl/if.hpp> +#include <boost/type_traits/is_void.hpp> + + +namespace boost { namespace geometry +{ + +namespace strategy { namespace azimuth +{ + +template +< + typename FormulaPolicy = strategy::andoyer, + typename Spheroid = srs::spheroid<double>, + typename CalculationType = void +> +class geographic +{ +public : + + typedef Spheroid model_type; + + inline geographic() + : m_spheroid() + {} + + explicit inline geographic(Spheroid const& spheroid) + : m_spheroid(spheroid) + {} + + inline model_type const& model() const + { + return m_spheroid; + } + + template <typename T> + inline void apply(T const& lon1_rad, T const& lat1_rad, + T const& lon2_rad, T const& lat2_rad, + T& a1, T& a2) const + { + typedef typename boost::mpl::if_ + < + boost::is_void<CalculationType>, T, CalculationType + >::type calc_t; + + typedef typename FormulaPolicy::template inverse<calc_t, false, true, true, false, false> inverse_type; + typedef typename inverse_type::result_type inverse_result; + inverse_result i_res = inverse_type::apply(calc_t(lon1_rad), calc_t(lat1_rad), + calc_t(lon2_rad), calc_t(lat2_rad), + m_spheroid); + a1 = i_res.azimuth; + a2 = i_res.reverse_azimuth; + } + +private : + Spheroid m_spheroid; +}; + +#ifndef DOXYGEN_NO_STRATEGY_SPECIALIZATIONS + +namespace services +{ + +template <typename CalculationType> +struct default_strategy<geographic_tag, CalculationType> +{ + typedef strategy::azimuth::geographic + < + strategy::andoyer, + srs::spheroid<double>, + CalculationType + > type; +}; + +} + +#endif // DOXYGEN_NO_STRATEGY_SPECIALIZATIONS + +}} // namespace strategy::azimuth + + +}} // namespace boost::geometry + +#endif // BOOST_GEOMETRY_STRATEGIES_GEOGRAPHIC_AZIMUTH_HPP |