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575 lines
16 KiB
C++
575 lines
16 KiB
C++
// Boost.Geometry (aka GGL, Generic Geometry Library)
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// Unit Test
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// Copyright (c) 2014, Oracle and/or its affiliates.
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// Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
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// Licensed under the Boost Software License version 1.0.
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// http://www.boost.org/users/license.html
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#ifndef BOOST_GEOMETRY_TEST_DISTANCE_SE_COMMON_HPP
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#define BOOST_GEOMETRY_TEST_DISTANCE_SE_COMMON_HPP
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#include <iostream>
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#include <string>
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#include <boost/mpl/assert.hpp>
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#include <boost/type_traits/is_integral.hpp>
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#include <boost/type_traits/is_same.hpp>
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#include <boost/geometry/geometries/point.hpp>
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#include <boost/geometry/geometries/point_xy.hpp>
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#include <boost/geometry/geometries/segment.hpp>
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#include <boost/geometry/geometries/linestring.hpp>
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#include <boost/geometry/geometries/polygon.hpp>
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#include <boost/geometry/geometries/ring.hpp>
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#include <boost/geometry/geometries/box.hpp>
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#include <boost/geometry/multi/geometries/multi_point.hpp>
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#include <boost/geometry/multi/geometries/multi_linestring.hpp>
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#include <boost/geometry/multi/geometries/multi_polygon.hpp>
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#include <boost/geometry/io/wkt/write.hpp>
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#include <boost/geometry/multi/io/wkt/write.hpp>
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#include <boost/geometry/io/dsv/write.hpp>
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#include <boost/geometry/multi/io/dsv/write.hpp>
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#include <boost/geometry/algorithms/num_interior_rings.hpp>
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#include <boost/geometry/algorithms/distance.hpp>
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#include <boost/geometry/algorithms/comparable_distance.hpp>
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#include "from_wkt.hpp"
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#include <string_from_type.hpp>
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#ifndef BOOST_GEOMETRY_TEST_DISTANCE_HPP
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namespace bg = ::boost::geometry;
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static const double earth_radius_km = 6371.0;
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static const double earth_radius_miles = 3959.0;
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// function copied from BG's test_distance.hpp
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template <typename Geometry1, typename Geometry2>
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void test_empty_input(Geometry1 const& geometry1, Geometry2 const& geometry2)
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{
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try
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{
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bg::distance(geometry1, geometry2);
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}
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catch(bg::empty_input_exception const& )
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{
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return;
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}
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BOOST_CHECK_MESSAGE(false, "A empty_input_exception should have been thrown" );
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}
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#endif // BOOST_GEOMETRY_TEST_DISTANCE_HPP
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//========================================================================
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template
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<
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typename PointLike1,
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typename PointLike2,
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typename Strategy,
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typename Tag1 = typename bg::tag<PointLike1>::type,
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typename Tag2 = typename bg::tag<PointLike2>::type
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>
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struct distance_brute_force
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{};
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template
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<
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typename PointLike1,
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typename PointLike2,
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typename Strategy
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>
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struct distance_brute_force
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<
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PointLike1, PointLike2, Strategy,
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bg::point_tag, bg::point_tag
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>
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{
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typedef typename bg::distance_result
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<
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PointLike1, PointLike2, Strategy
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>::type distance_type;
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static inline distance_type apply(PointLike1 const& p1,
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PointLike2 const& p2,
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Strategy const& strategy)
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{
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return bg::distance(p1, p2, strategy);
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}
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};
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template
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<
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typename PointLike1,
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typename PointLike2,
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typename Strategy
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>
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struct distance_brute_force
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<
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PointLike1, PointLike2, Strategy,
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bg::point_tag, bg::multi_point_tag
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>
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{
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typedef typename bg::distance_result
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<
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PointLike1, PointLike2, Strategy
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>::type distance_type;
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static inline distance_type apply(PointLike1 const& p,
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PointLike2 const& mp,
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Strategy const& strategy)
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{
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typedef typename boost::range_iterator<PointLike2 const>::type iterator;
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bool first = true;
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distance_type d_min;
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for (iterator it = boost::begin(mp); it != boost::end(mp);
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++it, first = false)
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{
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distance_type d = bg::distance(p, *it, strategy);
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if ( first || d < d_min )
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{
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d_min = d;
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}
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}
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return d_min;
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}
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};
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template
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<
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typename PointLike1,
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typename PointLike2,
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typename Strategy
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>
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struct distance_brute_force
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<
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PointLike1, PointLike2, Strategy,
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bg::multi_point_tag, bg::multi_point_tag
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>
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{
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typedef typename bg::distance_result
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<
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PointLike1, PointLike2, Strategy
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>::type distance_type;
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static inline distance_type apply(PointLike1 const& mp1,
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PointLike2 const& mp2,
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Strategy const& strategy)
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{
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typedef typename boost::range_iterator
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<
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PointLike1 const
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>::type iterator1;
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typedef typename boost::range_iterator
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<
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PointLike2 const
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>::type iterator2;
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bool first = true;
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distance_type d_min;
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for (iterator1 it1 = boost::begin(mp1); it1 != boost::end(mp1); ++it1)
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{
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for (iterator2 it2 = boost::begin(mp2); it2 != boost::end(mp2);
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++it2, first = false)
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{
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distance_type d = bg::distance(*it1, *it2, strategy);
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if ( first || d < d_min )
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{
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d_min = d;
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}
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}
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}
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return d_min;
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}
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};
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//========================================================================
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#ifdef BOOST_GEOMETRY_TEST_DEBUG
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// pretty print geometry -- START
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template <typename Geometry, typename GeometryTag>
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struct pretty_print_geometry_dispatch
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{
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template <typename Stream>
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static inline Stream& apply(Geometry const& geometry, Stream& os)
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{
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os << bg::wkt(geometry);
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return os;
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}
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};
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template <typename Geometry>
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struct pretty_print_geometry_dispatch<Geometry, bg::segment_tag>
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{
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template <typename Stream>
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static inline Stream& apply(Geometry const& geometry, Stream& os)
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{
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os << "SEGMENT" << bg::dsv(geometry);
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return os;
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}
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};
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template <typename Geometry>
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struct pretty_print_geometry_dispatch<Geometry, bg::box_tag>
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{
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template <typename Stream>
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static inline Stream& apply(Geometry const& geometry, Stream& os)
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{
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os << "BOX" << bg::dsv(geometry);
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return os;
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}
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};
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template <typename Geometry>
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struct pretty_print_geometry
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{
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template <typename Stream>
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static inline Stream& apply(Geometry const& geometry, Stream& os)
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{
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return pretty_print_geometry_dispatch
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<
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Geometry, typename bg::tag<Geometry>::type
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>::apply(geometry, os);
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}
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};
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// pretty print geometry -- END
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#endif // BOOST_GEOMETRY_TEST_DEBUG
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//========================================================================
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template <typename T>
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struct check_equal
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{
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static inline void apply(T const& value1, T const& value2)
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{
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BOOST_CHECK( value1 == value2 );
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}
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};
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template <>
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struct check_equal<double>
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{
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static inline void apply(double value1, double value2)
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{
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BOOST_CHECK_CLOSE( value1, value2, 0.0001 );
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}
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};
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//========================================================================
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template
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<
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typename Geometry1, typename Geometry2,
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int id1 = bg::geometry_id<Geometry1>::value,
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int id2 = bg::geometry_id<Geometry2>::value
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>
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struct test_distance_of_geometries
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: public test_distance_of_geometries<Geometry1, Geometry2, 0, 0>
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{};
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template <typename Geometry1, typename Geometry2>
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struct test_distance_of_geometries<Geometry1, Geometry2, 0, 0>
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{
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template
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<
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typename DistanceType,
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typename ComparableDistanceType,
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typename Strategy
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>
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static inline
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void apply(std::string const& wkt1,
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std::string const& wkt2,
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DistanceType const& expected_distance,
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ComparableDistanceType const& expected_comparable_distance,
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Strategy const& strategy,
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bool test_reversed = true)
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{
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Geometry1 geometry1 = from_wkt<Geometry1>(wkt1);
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Geometry2 geometry2 = from_wkt<Geometry2>(wkt2);
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apply(geometry1, geometry2,
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expected_distance, expected_comparable_distance,
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strategy, test_reversed);
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}
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template
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<
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typename DistanceType,
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typename ComparableDistanceType,
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typename Strategy
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>
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static inline
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void apply(Geometry1 const& geometry1,
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Geometry2 const& geometry2,
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DistanceType const& expected_distance,
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ComparableDistanceType const& expected_comparable_distance,
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Strategy const& strategy,
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bool test_reversed = true)
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{
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#ifdef BOOST_GEOMETRY_TEST_DEBUG
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typedef pretty_print_geometry<Geometry1> PPG1;
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typedef pretty_print_geometry<Geometry2> PPG2;
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PPG1::apply(geometry1, std::cout);
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std::cout << " - ";
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PPG2::apply(geometry2, std::cout);
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std::cout << std::endl;
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#endif
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typedef typename bg::default_distance_result
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<
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Geometry1, Geometry2
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>::type default_distance_result;
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typedef typename bg::strategy::distance::services::return_type
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<
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Strategy, Geometry1, Geometry2
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>::type distance_result_from_strategy;
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static const bool same_regular = boost::is_same
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<
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default_distance_result,
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distance_result_from_strategy
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>::type::value;
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BOOST_CHECK( same_regular );
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typedef typename bg::default_comparable_distance_result
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<
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Geometry1, Geometry2
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>::type default_comparable_distance_result;
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typedef typename bg::strategy::distance::services::return_type
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<
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typename bg::strategy::distance::services::comparable_type
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<
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Strategy
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>::type,
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Geometry1,
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Geometry2
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>::type comparable_distance_result_from_strategy;
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static const bool same_comparable = boost::is_same
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<
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default_comparable_distance_result,
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comparable_distance_result_from_strategy
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>::type::value;
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BOOST_CHECK( same_comparable );
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// check distance with default strategy
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default_distance_result dist_def = bg::distance(geometry1, geometry2);
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check_equal
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<
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default_distance_result
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>::apply(dist_def, expected_distance);
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// check distance with passed strategy
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distance_result_from_strategy dist =
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bg::distance(geometry1, geometry2, strategy);
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check_equal
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<
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default_distance_result
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>::apply(dist, expected_distance * strategy.radius());
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// check against the comparable distance computed in a
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// brute-force manner
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default_distance_result dist_brute_force = distance_brute_force
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<
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Geometry1, Geometry2, Strategy
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>::apply(geometry1, geometry2, strategy);
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check_equal
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<
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default_distance_result
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>::apply(dist_brute_force, expected_distance * strategy.radius());
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// check comparable distance with default strategy
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default_comparable_distance_result cdist_def =
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bg::comparable_distance(geometry1, geometry2);
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check_equal
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<
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default_comparable_distance_result
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>::apply(cdist_def, expected_comparable_distance);
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// check comparable distance with passed strategy
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comparable_distance_result_from_strategy cdist =
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bg::comparable_distance(geometry1, geometry2, strategy);
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check_equal
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<
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default_comparable_distance_result
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>::apply(cdist, expected_comparable_distance);
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// check against the comparable distance computed in a
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// brute-force manner
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default_comparable_distance_result cdist_brute_force
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= distance_brute_force
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<
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Geometry1,
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Geometry2,
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typename bg::strategy::distance::services::comparable_type
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<
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Strategy
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>::type
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>::apply(geometry1,
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geometry2,
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bg::strategy::distance::services::get_comparable
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<
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Strategy
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>::apply(strategy));
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check_equal
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<
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default_comparable_distance_result
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>::apply(cdist_brute_force, expected_comparable_distance);
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#ifdef BOOST_GEOMETRY_TEST_DEBUG
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std::cout << string_from_type<typename bg::coordinate_type<Geometry1>::type>::name()
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<< string_from_type<typename bg::coordinate_type<Geometry2>::type>::name()
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<< " -> "
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<< string_from_type<default_distance_result>::name()
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<< string_from_type<default_comparable_distance_result>::name()
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<< std::endl;
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std::cout << "expected distance (default strategy) = "
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<< expected_distance << " ; "
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<< "expected distance (passed strategy) = "
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<< (expected_distance * strategy.radius()) << " ; "
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<< "expected comp. distance = "
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<< expected_comparable_distance
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<< std::endl;
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std::cout << "distance (default strategy) = " << dist_def << " ; "
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<< "distance (passed strategy) = " << dist << " ; "
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<< "comp. distance (default strategy) = "
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<< cdist_def << " ; "
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<< "comp. distance (passed strategy) = "
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<< cdist << std::endl;
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if ( !test_reversed )
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{
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std::cout << std::endl;
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}
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#endif
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if ( test_reversed )
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{
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// check distance with default strategy
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dist_def = bg::distance(geometry2, geometry1);
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check_equal
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<
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default_distance_result
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>::apply(dist_def, expected_distance);
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// check distance with given strategy
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dist = bg::distance(geometry2, geometry1, strategy);
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check_equal
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<
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default_distance_result
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>::apply(dist, expected_distance * strategy.radius());
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// check comparable distance with default strategy
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cdist_def = bg::comparable_distance(geometry2, geometry1);
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check_equal
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<
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default_comparable_distance_result
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>::apply(cdist_def, expected_comparable_distance);
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// check comparable distance with given strategy
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cdist = bg::comparable_distance(geometry2, geometry1, strategy);
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check_equal
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<
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default_comparable_distance_result
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>::apply(cdist, expected_comparable_distance);
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#ifdef BOOST_GEOMETRY_TEST_DEBUG
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std::cout << "expected distance (default strategy) = "
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<< expected_distance << " ; "
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<< "expected distance (passed strategy) = "
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<< (expected_distance * strategy.radius()) << " ; "
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<< "expected comp. distance = "
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<< expected_comparable_distance
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<< std::endl;
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std::cout << "distance[reversed args] (def. startegy) = "
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<< dist_def << " ; "
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<< "distance[reversed args] (passed startegy) = "
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<< dist << " ; "
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<< "comp. distance[reversed args] (def. strategy) = "
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<< cdist_def << " ; "
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<< "comp. distance[reversed args] (passed strategy) = "
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<< cdist << std::endl;
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std::cout << std::endl;
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#endif
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}
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}
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};
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//========================================================================
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template <typename Geometry1, typename Geometry2, typename Strategy>
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void test_empty_input(Geometry1 const& geometry1,
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Geometry2 const& geometry2,
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Strategy const& strategy)
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{
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try
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{
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bg::distance(geometry1, geometry2, strategy);
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}
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catch(bg::empty_input_exception const& )
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{
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return;
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}
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BOOST_CHECK_MESSAGE(false, "A empty_input_exception should have been thrown" );
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try
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{
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bg::distance(geometry2, geometry1, strategy);
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}
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catch(bg::empty_input_exception const& )
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{
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return;
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}
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BOOST_CHECK_MESSAGE(false, "A empty_input_exception should have been thrown" );
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}
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#endif // BOOST_GEOMETRY_TEST_DISTANCE_SE_COMMON_HPP
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