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// Boost.Geometry
// Unit Test
// Copyright (c) 2019 Oracle and/or its affiliates.
// Contributed and/or modified by Vissarion Fysikopoulos, 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)
#include <sstream>
#include "../formulas/test_formula.hpp"
#include "distance_cross_track_cases.hpp"
#include <boost/geometry/strategies/strategies.hpp>
#include <boost/geometry/srs/spheroid.hpp>
struct error{
double long_distance;
double short_distance;
double very_short_distance;
double very_very_short_distance;
};
void check_result(double const& result, double const& expected,
double const& reference, error const& reference_error)
{
BOOST_GEOMETRY_CHECK_CLOSE(result, expected, 0.1,
std::setprecision(20) << "result {" << result
<< "} different than expected {" << expected << "}.");
double reference_error_value = result > 2000 ? reference_error.long_distance
: result > 100 ? reference_error.short_distance
: result > 20 ? reference_error.very_short_distance
: reference_error.very_very_short_distance;
BOOST_GEOMETRY_CHECK_CLOSE(result, reference, reference_error_value,
std::setprecision(20) << "result {" << result
<< "} different than reference {"
<< reference << "}.");
}
template <typename Point>
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;
double lon3r = results.p3.lon * d2r;
double lat3r = results.p3.lat * d2r;
typedef bg::srs::spheroid<double> Spheroid;
// WGS84
Spheroid spheroid(6378137.0, 6356752.3142451793);
error errors [] =
{
{0.00000001, 0.00000001, 0.00000001, 0.000001}, //vincenty
{0.0002, 0.002, 0.01, 0.2}, //thomas
{0.002, 0.4, 15, 25}, //andoyer
{1, 6, 15, 200} //spherical
};
//vincenty
double distance = bg::strategy::distance::detail::geographic_cross_track<bg::strategy::vincenty, Spheroid, double, true>(spheroid)
.apply(Point(lon3r, lat3r), Point(lon1r, lat1r), Point(lon2r, lat2r));
check_result(distance, results.vincenty_bisection, results.reference, errors[0]);
distance = bg::strategy::distance::geographic_cross_track<bg::strategy::vincenty, Spheroid, double>(spheroid)
.apply(Point(lon3r, lat3r), Point(lon1r, lat1r), Point(lon2r, lat2r));
check_result(distance, results.vincenty, results.reference, errors[0]);
//thomas
distance = bg::strategy::distance::detail::geographic_cross_track<bg::strategy::thomas, Spheroid, double, true>(spheroid)
.apply(Point(lon3r, lat3r), Point(lon1r, lat1r), Point(lon2r, lat2r));
check_result(distance, results.thomas_bisection, results.reference, errors[1]);
distance = bg::strategy::distance::geographic_cross_track<bg::strategy::thomas, Spheroid, double>(spheroid)
.apply(Point(lon3r, lat3r), Point(lon1r, lat1r), Point(lon2r, lat2r));
check_result(distance, results.thomas, results.reference, errors[1]);
//andoyer
distance = bg::strategy::distance::detail::geographic_cross_track<bg::strategy::andoyer, Spheroid, double, true>(spheroid)
.apply(Point(lon3r, lat3r), Point(lon1r, lat1r), Point(lon2r, lat2r));
check_result(distance, results.andoyer_bisection, results.reference, errors[2]);
distance = bg::strategy::distance::geographic_cross_track<bg::strategy::andoyer, Spheroid, double>(spheroid)
.apply(Point(lon3r, lat3r), Point(lon1r, lat1r), Point(lon2r, lat2r));
check_result(distance, results.andoyer, results.reference, errors[2]);
//spherical
distance = bg::strategy::distance::cross_track<>(bg::formula::mean_radius<double>(spheroid))
.apply(Point(lon3r, lat3r), Point(lon1r, lat1r), Point(lon2r, lat2r));
check_result(distance, results.spherical, results.reference, errors[3]);
}
int test_main(int, char*[])
{
typedef bg::model::point<double, 2, bg::cs::geographic<bg::radian> > point;
for (size_t i = 0; i < expected_size; ++i)
{
test_all<point>(expected[i]);
}
return 0;
}
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