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// Boost.Geometry
// Unit Test
// Copyright (c) 2017 Oracle and/or its affiliates.
// Contributed and/or modified by Vissarion Fysikopoulos, 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 <geometry_test_common.hpp>
#include "test_formula.hpp"
#include "vertex_longitude_cases.hpp"
#include <boost/geometry/formulas/vertex_latitude.hpp>
#include <boost/geometry/formulas/vertex_longitude.hpp>
#include <boost/geometry/formulas/vincenty_inverse.hpp>
#include <boost/geometry/formulas/thomas_inverse.hpp>
#include <boost/geometry/formulas/andoyer_inverse.hpp>
#include <boost/geometry/strategies/strategies.hpp>
#include <boost/geometry/util/math.hpp>
#define BOOST_GEOMETRY_TEST_DEBUG
namespace bg = boost::geometry;
template<typename CT>
CT test_vrt_lon_sph(CT lon1r,
CT lat1r,
CT lon2r,
CT lat2r)
{
CT a1 = bg::formula::spherical_azimuth(lon1r, lat1r, lon2r, lat2r);
typedef bg::model::point<CT, 2,
bg::cs::spherical_equatorial<bg::radian> > point;
bg::model::segment<point> segment(point(lon1r, lat1r),
point(lon2r, lat2r));
bg::model::box<point> box;
bg::envelope(segment, box);
CT vertex_lat;
CT lat_sum = lat1r + lat2r;
if (lat_sum > CT(0))
{
vertex_lat = bg::get_as_radian<bg::max_corner, 1>(box);
} else {
vertex_lat = bg::get_as_radian<bg::min_corner, 1>(box);
}
bg::strategy::azimuth::spherical<> azimuth;
return bg::formula::vertex_longitude
<CT, bg::spherical_equatorial_tag>::
apply(lon1r, lat1r,
lon2r, lat2r,
vertex_lat,
a1,
azimuth);
}
template
<
template <typename, bool, bool, bool, bool, bool> class FormulaPolicy,
typename CT
>
CT test_vrt_lon_geo(CT lon1r,
CT lat1r,
CT lon2r,
CT lat2r)
{
// WGS84
bg::srs::spheroid<CT> spheroid(6378137.0, 6356752.3142451793);
typedef FormulaPolicy<CT, false, true, false, false, false> formula;
CT a1 = formula::apply(lon1r, lat1r, lon2r, lat2r, spheroid).azimuth;
typedef bg::model::point<CT, 2, bg::cs::geographic<bg::radian> > geo_point;
bg::model::segment<geo_point> segment(geo_point(lon1r, lat1r),
geo_point(lon2r, lat2r));
bg::model::box<geo_point> box;
bg::envelope(segment, box);
CT vertex_lat;
CT lat_sum = lat1r + lat2r;
if (lat_sum > CT(0))
{
vertex_lat = bg::get_as_radian<bg::max_corner, 1>(box);
} else {
vertex_lat = bg::get_as_radian<bg::min_corner, 1>(box);
}
bg::strategy::azimuth::geographic<> azimuth_geographic;
return bg::formula::vertex_longitude
<CT, bg::geographic_tag>::apply(lon1r, lat1r,
lon2r, lat2r,
vertex_lat,
a1,
azimuth_geographic);
}
void test_all(expected_results const& results)
{
double const d2r = bg::math::d2r<double>();
double lon1r = results.p1.lon * d2r;
double lat1r = results.p1.lat * d2r;
double lon2r = results.p2.lon * d2r;
double lat2r = results.p2.lat * d2r;
if(lon1r > lon2r)
{
std::swap(lon1r, lon2r);
std::swap(lat1r, lat2r);
}
double res_an = test_vrt_lon_geo<bg::formula::andoyer_inverse>
(lon1r, lat1r, lon2r, lat2r);
double res_th = test_vrt_lon_geo<bg::formula::thomas_inverse>
(lon1r, lat1r, lon2r, lat2r);
double res_vi = test_vrt_lon_geo<bg::formula::vincenty_inverse>
(lon1r, lat1r, lon2r, lat2r);
double res_sh = test_vrt_lon_sph(lon1r, lat1r, lon2r, lat2r);
bg::math::normalize_longitude<bg::radian, double>(res_an);
bg::math::normalize_longitude<bg::radian, double>(res_th);
bg::math::normalize_longitude<bg::radian, double>(res_vi);
bg::math::normalize_longitude<bg::radian, double>(res_sh);
check_one(res_an, results.andoyer * d2r, res_vi, 0.001);
check_one(res_th, results.thomas * d2r, res_vi, 0.01);//in some tests thomas gives low accuracy
check_one(res_vi, results.vincenty * d2r, res_vi, 0.0000001);
check_one(res_sh, results.spherical * d2r, res_vi, 1);
}
int test_main(int, char*[])
{
for (size_t i = 0; i < expected_size; ++i)
{
test_all(expected[i]);
}
return 0;
}
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