332 lines
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C++

// Boost.Geometry
// Unit Test
// Copyright (c) 2021-2022, 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
// Licensed under the Boost Software License version 1.0.
// http://www.boost.org/users/license.html
#ifndef BOOST_GEOMETRY_TEST_ALGORITHMS_CLOSEST_POINTS_COMMON_HPP
#define BOOST_GEOMETRY_TEST_ALGORITHMS_CLOSEST_POINTS_COMMON_HPP
#include <boost/geometry/core/tags.hpp>
#include <boost/geometry/geometries/geometries.hpp>
#include <boost/geometry/algorithms/closest_points.hpp>
#include <boost/geometry/strategies/strategies.hpp>
#include <boost/test/included/unit_test.hpp>
#include <from_wkt.hpp>
namespace bg = boost::geometry;
//===========================================================================
// point types
using car_point = bg::model::point<double, 2, bg::cs::cartesian>;
using sph_point = bg::model::point
<
double, 2,
bg::cs::spherical_equatorial<bg::degree>
>;
using geo_point = bg::model::point
<
double, 2,
bg::cs::geographic<bg::degree>
>;
//===========================================================================
using cartesian = bg::strategies::closest_points::cartesian<double>;
using spherical = bg::strategies::closest_points::spherical<double>;
using andoyer = bg::strategies::closest_points::geographic<bg::strategy::andoyer>;
using thomas = bg::strategies::closest_points::geographic<bg::strategy::andoyer>;
using vincenty = bg::strategies::closest_points::geographic<bg::strategy::andoyer>;
//===========================================================================
template <typename Segment>
static inline Segment swap(Segment const& s)
{
Segment swapped;
bg::set<0, 0>(swapped, bg::get<1, 0>(s));
bg::set<0, 1>(swapped, bg::get<1, 1>(s));
bg::set<1, 0>(swapped, bg::get<0, 0>(s));
bg::set<1, 1>(swapped, bg::get<0, 1>(s));
return swapped;
}
template <int i, int j, typename Segment>
void compare_result_with_expected(Segment const& expected_resulting_segment,
Segment const& resulting_segment)
{
double expected = bg::get<i, j>(expected_resulting_segment);
double resulting = bg::get<i, j>(resulting_segment);
BOOST_CHECK_CLOSE(expected, resulting, 0.01);
}
template <typename Segment>
void compare_result_with_expected(Segment const& exp_resulting_segment,
Segment const& resulting_segment)
{
compare_result_with_expected<0,0>(exp_resulting_segment, resulting_segment);
compare_result_with_expected<1,0>(exp_resulting_segment, resulting_segment);
compare_result_with_expected<0,1>(exp_resulting_segment, resulting_segment);
compare_result_with_expected<1,1>(exp_resulting_segment, resulting_segment);
}
//==============================================================================
template
<
typename Geometry1,
typename Geometry2,
typename Segment,
typename Strategy
>
void compute_result(Geometry1 const& geometry1,
Geometry2 const& geometry2,
Segment const& exp_resulting_segment,
Strategy const& strategy,
bool default_strategy)
{
#ifdef BOOST_GEOMETRY_TEST_DEBUG_CLOSEST_POINTS
//std::cout << "CS: " << typeid(typename bg::cs_tag<Geometry1>::type).name()
// << std::endl;
std::cout << bg::wkt(geometry1) << " --- " << bg::wkt(geometry2)
<< std::endl;
#endif
Segment resulting_segment;
if (default_strategy)
{
bg::closest_points(geometry1, geometry2, resulting_segment);
}
else
{
bg::closest_points(geometry1, geometry2, resulting_segment, strategy);
}
#ifdef BOOST_GEOMETRY_TEST_DEBUG_CLOSEST_POINTS
std::cout << "closest_points : " << bg::wkt(resulting_segment)
<< std::endl << std::endl;
#endif
compare_result_with_expected(exp_resulting_segment, resulting_segment);
}
template
<
typename Geometry1,
typename Geometry2,
typename Segment,
typename Strategy
>
void compute_result(Geometry1 const& geometry1,
Geometry2 const& geometry2,
Segment const& exp_resulting_segment,
Strategy const& strategy,
bool swap_geometries,
bool default_strategy)
{
compute_result(geometry1, geometry2, exp_resulting_segment, strategy,
default_strategy);
if (swap_geometries)
{
// swap input geometries and expected segment
compute_result(geometry2, geometry1,
swap(exp_resulting_segment), strategy,
default_strategy);
}
}
//==============================================================================
template <typename CS_tag>
struct test_closest_points_dispatch
{};
template <>
struct test_closest_points_dispatch<bg::cartesian_tag>
{
template
<
typename OutputSegment,
typename Geometry1,
typename Geometry2,
typename Strategy
>
void static apply(Geometry1 const& geometry1,
Geometry2 const& geometry2,
std::string const& expected_resulting_segment_car,
std::string const& expected_resulting_segment_sph,
std::string const& expected_resulting_segment_geo,
Strategy const& strategy,
bool swap_geometries,
bool default_strategy)
{
boost::ignore_unused(expected_resulting_segment_sph);
boost::ignore_unused(expected_resulting_segment_geo);
OutputSegment expected_resulting_segment;
bg::read_wkt(expected_resulting_segment_car,
expected_resulting_segment);
compute_result(geometry1,
geometry2,
expected_resulting_segment,
strategy,
swap_geometries,
default_strategy);
}
};
template <>
struct test_closest_points_dispatch<bg::spherical_equatorial_tag>
{
template
<
typename OutputSegment,
typename Geometry1,
typename Geometry2,
typename Strategy
>
void static apply(Geometry1 const& geometry1,
Geometry2 const& geometry2,
std::string const& expected_resulting_segment_car,
std::string const& expected_resulting_segment_sph,
std::string const& expected_resulting_segment_geo,
Strategy const& strategy,
bool swap_geometries,
bool default_strategy)
{
boost::ignore_unused(expected_resulting_segment_car);
boost::ignore_unused(expected_resulting_segment_geo);
OutputSegment expected_resulting_segment;
bg::read_wkt(expected_resulting_segment_sph,
expected_resulting_segment);
compute_result(geometry1,
geometry2,
expected_resulting_segment,
strategy,
swap_geometries,
default_strategy);
}
};
template <>
struct test_closest_points_dispatch<bg::geographic_tag>
{
template
<
typename OutputSegment,
typename Geometry1,
typename Geometry2,
typename Strategy
>
void static apply(Geometry1 const& geometry1,
Geometry2 const& geometry2,
std::string const& expected_resulting_segment_car,
std::string const& expected_resulting_segment_sph,
std::string const& expected_resulting_segment_geo,
Strategy const& strategy,
bool swap_geometries,
bool default_strategy)
{
boost::ignore_unused(expected_resulting_segment_car);
boost::ignore_unused(expected_resulting_segment_sph);
OutputSegment expected_resulting_segment;
bg::read_wkt(expected_resulting_segment_geo,
expected_resulting_segment);
compute_result(geometry1,
geometry2,
expected_resulting_segment,
strategy,
swap_geometries,
default_strategy);
}
};
//==============================================================================
template <typename Geometry1, typename Geometry2, typename OutputSegment>
struct test_geometry
{
template <typename Strategy>
inline static void apply(std::string const& wkt1,
std::string const& wkt2,
std::string const& expected_resulting_segment_car,
std::string const& expected_resulting_segment_sph,
std::string const& expected_resulting_segment_geo,
Strategy const& strategy,
bool swap_geometries = true,
bool default_strategy = false)
{
using CS_tag = typename bg::cs_tag<Geometry1>::type;
Geometry1 geometry1;
bg::read_wkt(wkt1, geometry1);
Geometry2 geometry2;
bg::read_wkt(wkt2, geometry2);
test_closest_points_dispatch<CS_tag>
::template apply<OutputSegment>(geometry1,
geometry2,
expected_resulting_segment_car,
expected_resulting_segment_sph,
expected_resulting_segment_geo,
strategy,
swap_geometries,
default_strategy);
}
template <typename Strategy>
inline static void apply(std::string const& wkt1,
std::string const& wkt2,
std::string const& expected_resulting_segment_car,
std::string const& expected_resulting_segment_sph_geo,
Strategy const& strategy,
bool swap_geometries = true,
bool default_strategy = false)
{
apply(wkt1,
wkt2,
expected_resulting_segment_car,
expected_resulting_segment_sph_geo,
expected_resulting_segment_sph_geo,
strategy,
swap_geometries,
default_strategy);
}
template <typename Strategy>
inline static void apply(std::string const& wkt1,
std::string const& wkt2,
std::string const& expected_resulting_segment,
Strategy const& strategy,
bool swap_geometries = true,
bool default_strategy = false)
{
apply(wkt1,
wkt2,
expected_resulting_segment,
expected_resulting_segment,
expected_resulting_segment,
strategy,
swap_geometries,
default_strategy);
}
};
#endif // BOOST_GEOMETRY_TEST_ALGORITHMS_CLOSEST_POINTS_COMMON_HPP