/libs/geometry/test/strategies/spherical_side.cpp
https://github.com/delalond/boost_1_54_0-bgq · C++ · 142 lines · 84 code · 31 blank · 27 comment · 4 complexity · c1a24e4be97b2862e7e233e0d5f1eb75 MD5 · raw file
- // Boost.Geometry (aka GGL, Generic Geometry Library)
- // Unit Test
- // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
- // 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/geometry/algorithms/assign.hpp>
- #include <boost/geometry/strategies/spherical/side_by_cross_track.hpp>
- //#include <boost/geometry/strategies/spherical/side_via_plane.hpp>
- #include <boost/geometry/strategies/spherical/ssf.hpp>
- #include <boost/geometry/strategies/cartesian/side_by_triangle.hpp>
- #include <boost/geometry/core/cs.hpp>
- #include <boost/geometry/geometries/point.hpp>
- #include <boost/geometry/geometries/segment.hpp>
- namespace boost { namespace geometry {
- template <typename Vector, typename Point1, typename Point2>
- static inline Vector create_vector(Point1 const& p1, Point2 const& p2)
- {
- Vector v;
- convert(p1, v);
- subtract_point(v, p2);
- return v;
- }
- }}
- inline char side_char(int side)
- {
- return side == 1 ? 'L'
- : side == -1 ? 'R'
- : '-'
- ;
- }
- template <typename Point>
- void test_side1(std::string const& case_id, Point const& p1, Point const& p2, Point const& p3,
- int expected, int expected_cartesian)
- {
- // std::cout << case_id << ": ";
- //int s = bg::strategy::side::side_via_plane<>::apply(p1, p2, p3);
- int side_ssf = bg::strategy::side::spherical_side_formula<>::apply(p1, p2, p3);
- //int side2 = bg::strategy::side::side_via_plane<>::apply(p1, p2, p3);
- int side_ct = bg::strategy::side::side_by_cross_track<>::apply(p1, p2, p3);
- typedef bg::strategy::side::services::default_strategy<bg::cartesian_tag>::type cartesian_strategy;
- int side_cart = cartesian_strategy::apply(p1, p2, p3);
- BOOST_CHECK_EQUAL(side_ssf, expected);
- BOOST_CHECK_EQUAL(side_ct, expected);
- BOOST_CHECK_EQUAL(side_cart, expected_cartesian);
- /*
- std::cout
- << "exp: " << side_char(expected)
- << " ssf: " << side_char(side1)
- << " pln: " << side_char(side2)
- << " ct: " << side_char(side3)
- //<< " def: " << side_char(side4)
- << " cart: " << side_char(side5)
- << std::endl;
- */
- }
- template <typename Point>
- void test_side(std::string const& case_id, Point const& p1, Point const& p2, Point const& p3,
- int expected, int expected_cartesian = -999)
- {
- if (expected_cartesian == -999)
- {
- expected_cartesian = expected;
- }
- test_side1(case_id, p1, p2, p3, expected, expected_cartesian);
- test_side1(case_id, p2, p1, p3, -expected, -expected_cartesian);
- }
- template <typename Point>
- void test_all()
- {
- typedef std::pair<double, double> pair;
- Point amsterdam(5.9, 52.4);
- Point barcelona(2.0, 41.0);
- Point paris(2.0, 48.0);
- Point milan(7.0, 45.0);
- //goto wrong;
- test_side<Point>("bp-m", barcelona, paris, milan, -1);
- test_side<Point>("bm-p", barcelona, milan, paris, 1);
- test_side<Point>("mp-b", milan, paris, barcelona, 1);
- test_side<Point>("am-p", amsterdam, milan, paris, -1);
- test_side<Point>("pm-a", paris, milan, amsterdam, 1);
- // http://www.gcmap.com/mapui?P=30N+10E-50N+50E,39N+30E
- Point gcmap_p1(10.0, 30.0);
- Point gcmap_p2(50.0, 50.0);
- test_side<Point>("blog1", gcmap_p1, gcmap_p2, Point(30.0, 41.0), -1, 1);
- test_side<Point>("blog1", gcmap_p1, gcmap_p2, Point(30.0, 42.0), -1, 1);
- test_side<Point>("blog1", gcmap_p1, gcmap_p2, Point(30.0, 43.0), -1, 1);
- test_side<Point>("blog1", gcmap_p1, gcmap_p2, Point(30.0, 44.0), 1);
- // http://www.gcmap.com/mapui?P=50N+80E-60N+50W,65N+30E
- Point gcmap_np1(80.0, 50.0);
- Point gcmap_np2(-50.0, 60.0);
- // http://www.gcmap.com/mapui?P=50N+140E-60N+10E,65N+30E
- //Point gcmap_np1(140.0, 50.0);
- //Point gcmap_np2(10.0, 60.0);
- //test_side<Point>(gcmap_np1, gcmap_np2, gcmap_np, 1);
- test_side<Point>("40", gcmap_np1, gcmap_np2, Point(30.0, 60.0), 1, -1);
- test_side<Point>("45", gcmap_np1, gcmap_np2, Point(30.0, 65.0), 1, -1);
- test_side<Point>("70", gcmap_np1, gcmap_np2, Point(30.0, 70.0), 1, -1);
- test_side<Point>("75", gcmap_np1, gcmap_np2, Point(30.0, 75.0), -1);
- }
- int test_main(int, char* [])
- {
- test_all<bg::model::point<int, 2, bg::cs::spherical<bg::degree> > >();
- test_all<bg::model::point<double, 2, bg::cs::spherical_equatorial<bg::degree> > >();
- #if defined(HAVE_TTMATH)
- typedef ttmath::Big<1,4> tt;
- test_all<bg::model::point<tt, 2, bg::cs::spherical_equatorial<bg::degree> > >();
- #endif
- return 0;
- }