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66 lines
1.8 KiB
C++
66 lines
1.8 KiB
C++
// Boost.Geometry (aka GGL, Generic Geometry Library) test file
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//
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// Copyright Barend Gehrels 2007-2009, Geodan, Amsterdam, the Netherlands
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// Use, modification and distribution is subject to the Boost Software License,
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// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_GEOMETRY_TEST_AREA_HPP
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#define BOOST_GEOMETRY_TEST_AREA_HPP
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#include <geometry_test_common.hpp>
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#include <boost/geometry/algorithms/area.hpp>
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#include <boost/geometry/strategies/strategies.hpp>
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#include <boost/geometry/extensions/gis/io/wkt/read_wkt.hpp>
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template <typename Geometry>
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void test_area(Geometry const& geometry, long double expected_area)
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{
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long double area = boost::geometry::area(geometry);
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#ifdef GEOMETRY_TEST_DEBUG
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std::ostringstream out;
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out << typeid(typename boost::geometry::coordinate_type<Geometry>::type).name()
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<< " "
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<< typeid(typename boost::geometry::area_result<Geometry>::type).name()
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<< " "
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<< "area : " << boost::geometry::area(geometry)
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<< std::endl;
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std::cout << out.str();
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#endif
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BOOST_CHECK_CLOSE(area, expected_area, 0.0001);
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// Test with explicitly defined strategies
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boost::geometry::strategy::area::by_triangles
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<
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typename boost::geometry::point_type<Geometry>::type
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> strategy1;
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area = boost::geometry::area(geometry, strategy1);
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boost::geometry::strategy::area::by_triangles
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<
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typename boost::geometry::point_type<Geometry>::type,
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long double
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> strategy2;
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area = boost::geometry::area(geometry, strategy2);
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}
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template <typename Geometry>
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void test_geometry(std::string const& wkt, double expected_area)
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{
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Geometry geometry;
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boost::geometry::read_wkt(wkt, geometry);
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test_area(geometry, expected_area);
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}
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#endif
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