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- // Boost.Geometry
- // 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 <boost/concept_check.hpp>
- #include <boost/geometry/srs/srs.hpp>
- #include <boost/geometry/algorithms/assign.hpp>
- #include <boost/geometry/geometries/point.hpp>
- #include <boost/geometry/strategies/strategies.hpp>
- #include <test_common/test_point.hpp>
- #ifdef HAVE_TTMATH
- # include <boost/geometry/extensions/contrib/ttmath_stub.hpp>
- #endif
- typedef bg::srs::spheroid<double> stype;
- typedef bg::strategy::andoyer andoyer_formula;
- typedef bg::strategy::thomas thomas_formula;
- typedef bg::strategy::vincenty vincenty_formula;
- template <typename P>
- bool non_precise_ct()
- {
- typedef typename bg::coordinate_type<P>::type ct;
- return boost::is_integral<ct>::value || boost::is_float<ct>::value;
- }
- template <typename P1, typename P2, typename FormulaPolicy>
- void test_distance(double lon1, double lat1, double lon2, double lat2)
- {
- typedef typename bg::promote_floating_point
- <
- typename bg::select_calculation_type<P1, P2, void>::type
- >::type calc_t;
- calc_t tolerance = non_precise_ct<P1>() || non_precise_ct<P2>() ?
- 5.0 : 0.001;
- P1 p1;
- P2 p2;
- bg::assign_values(p1, lon1, lat1);
- bg::assign_values(p2, lon2, lat2);
- // Test strategy that implements meridian distance against formula
- // that implements general distance
- // That may change in the future but in any case these calls must return
- // the same result
- calc_t dist_formula = FormulaPolicy::template inverse
- <
- double, true, false, false, false, false
- >::apply(lon1 * bg::math::d2r<double>(),
- lat1 * bg::math::d2r<double>(),
- lon2 * bg::math::d2r<double>(),
- lat2 * bg::math::d2r<double>(),
- stype()).distance;
- bg::strategy::distance::geographic<FormulaPolicy, stype> strategy;
- calc_t dist_strategy = strategy.apply(p1, p2);
- BOOST_CHECK_CLOSE(dist_formula, dist_strategy, tolerance);
- }
- template <typename P1, typename P2, typename FormulaPolicy>
- void test_distance_reverse(double lon1, double lat1,
- double lon2, double lat2)
- {
- test_distance<P1, P2, FormulaPolicy>(lon1, lat1, lon2, lat2);
- test_distance<P1, P2, FormulaPolicy>(lon2, lat2, lon1, lat1);
- }
- template <typename P1, typename P2, typename FormulaPolicy>
- void test_meridian()
- {
- test_distance_reverse<P1, P2, FormulaPolicy>(0., 70., 0., 80.);
- test_distance_reverse<P1, P2, FormulaPolicy>(0, 70, 0., -80.);
- test_distance_reverse<P1, P2, FormulaPolicy>(0., -70., 0., 80.);
- test_distance_reverse<P1, P2, FormulaPolicy>(0., -70., 0., -80.);
- test_distance_reverse<P1, P2, FormulaPolicy>(0., 70., 180., 80.);
- test_distance_reverse<P1, P2, FormulaPolicy>(0., 70., 180., -80.);
- test_distance_reverse<P1, P2, FormulaPolicy>(0., -70., 180., 80.);
- test_distance_reverse<P1, P2, FormulaPolicy>(0., -70., 180., -80.);
- test_distance_reverse<P1, P2, FormulaPolicy>(350., 70., 170., 80.);
- test_distance_reverse<P1, P2, FormulaPolicy>(350., 70., 170., -80.);
- test_distance_reverse<P1, P2, FormulaPolicy>(350., -70., 170., 80.);
- test_distance_reverse<P1, P2, FormulaPolicy>(350., -70., 170., -80.);
- }
- template <typename P>
- void test_all()
- {
- test_meridian<P, P, andoyer_formula>();
- test_meridian<P, P, thomas_formula>();
- test_meridian<P, P, vincenty_formula>();
- }
- int test_main(int, char* [])
- {
- test_all<bg::model::point<double, 2, bg::cs::geographic<bg::degree> > >();
- test_all<bg::model::point<float, 2, bg::cs::geographic<bg::degree> > >();
- test_all<bg::model::point<int, 2, bg::cs::geographic<bg::degree> > >();
- return 0;
- }
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