EQ2EMu/EQ2/source/depends/boost_1_72_0/libs/geometry/test/algorithms/length/length_sph.cpp

// Boost.Geometry (aka GGL, Generic Geometry Library)
// Unit Test

// Copyright (c) 2016 Oracle and/or its affiliates.
// Contributed and/or modified by Vissarion Fisikopoulos, 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)

#include <algorithms/test_length.hpp>
#include <algorithms/length/linestring_cases.hpp>

#include <boost/geometry/geometries/geometries.hpp>
#include <boost/geometry/geometries/point_xy.hpp>
#include <boost/geometry/geometries/adapted/std_pair_as_segment.hpp>

#include <test_geometries/all_custom_linestring.hpp>
#include <test_geometries/wrapped_boost_array.hpp>

template <typename P>
void test_all_default() //test the default strategy
{
    double const pi = boost::math::constants::pi<double>();

    for(std::size_t i = 0; i < 2; ++i)
    {
        test_geometry<bg::model::linestring<P> >(Ls_data_sph[i], 2 * pi);
    }
    // Geometries with length zero
    test_geometry<P>("POINT(0 0)", 0);
    test_geometry<bg::model::polygon<P> >("POLYGON((0 0,0 1,1 1,1 0,0 0))", 0);
}

template <typename P>
void test_all_haversine(double const mean_radius)
{
    double const pi = boost::math::constants::pi<double>();
    bg::strategy::distance::haversine<float> haversine_strategy(mean_radius);

    for(std::size_t i = 0; i < 2; ++i)
    {
        test_geometry<bg::model::linestring<P> >(Ls_data_sph[i],
                                                 2 * pi * mean_radius,
                                                 haversine_strategy);
    }
    // Geometries with length zero
    test_geometry<P>("POINT(0 0)", 0, haversine_strategy);
    test_geometry<bg::model::polygon<P> >("POLYGON((0 0,0 1,1 1,1 0,0 0))",
                                          0, haversine_strategy);
}

template <typename P>
void test_empty_input()
{
    test_empty_input(bg::model::linestring<P>());
    test_empty_input(bg::model::multi_linestring<P>());
}

int test_main(int, char* [])
{
    //Earth radius estimation in Km
    //(see https://en.wikipedia.org/wiki/Earth_radius)
    double const mean_radius = 6371.0;

    test_all_default<bg::model::d2::point_xy<int,
            bg::cs::spherical_equatorial<bg::degree> > >();
    test_all_default<bg::model::d2::point_xy<float,
            bg::cs::spherical_equatorial<bg::degree> > >();
    test_all_default<bg::model::d2::point_xy<double,
            bg::cs::spherical_equatorial<bg::degree> > >();

    test_all_haversine<bg::model::d2::point_xy<int,
        bg::cs::spherical_equatorial<bg::degree> > >(mean_radius);
    test_all_haversine<bg::model::d2::point_xy<float,
        bg::cs::spherical_equatorial<bg::degree> > >(mean_radius);
    test_all_haversine<bg::model::d2::point_xy<double,
        bg::cs::spherical_equatorial<bg::degree> > >(mean_radius);

#if defined(HAVE_TTMATH)
    test_all<bg::model::d2::point_xy<ttmath_big> >();
#endif

    //test_empty_input<bg::model::d2::point_xy<int> >();

    return 0;
}