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119 lines
3.8 KiB
C++
119 lines
3.8 KiB
C++
// Boost.Geometry (aka GGL, Generic Geometry Library)
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// Unit Test
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// Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
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// Copyright (c) 2016-2021 Oracle and/or its affiliates.
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// Contributed and/or modified by Vissarion Fisikopoulos, on behalf of Oracle
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// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
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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_LENGTH_HPP
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#define BOOST_GEOMETRY_TEST_LENGTH_HPP
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#include <geometry_test_common.hpp>
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#include <boost/geometry/algorithms/length.hpp>
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#ifndef BOOST_GEOMETRY_TEST_DEBUG
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#include <boost/geometry/geometries/adapted/boost_variant.hpp>
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#include <boost/geometry/geometries/adapted/boost_variant2.hpp>
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#include <boost/geometry/geometries/geometry_collection.hpp>
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#endif
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#include <boost/geometry/io/wkt/wkt.hpp>
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#include <boost/geometry/strategies/strategies.hpp>
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template <typename Geometry>
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void test_length(Geometry const& geometry, long double expected_length)
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{
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typename bg::default_length_result<Geometry>::type
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length = bg::length(geometry);
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#ifdef BOOST_GEOMETRY_TEST_DEBUG
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std::ostringstream out;
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out << typeid(typename bg::coordinate_type<Geometry>::type).name()
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<< std::endl
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<< typeid(typename bg::default_length_result<Geometry>::type).name()
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<< std::endl
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<< "length : " << bg::length(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(length, expected_length, 0.0001);
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}
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template <typename Geometry, typename Strategy>
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void test_length(Geometry const& geometry, long double expected_length, Strategy strategy)
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{
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typename bg::default_length_result<Geometry>::type
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length = bg::length(geometry, strategy);
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#ifdef BOOST_GEOMETRY_TEST_DEBUG
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std::ostringstream out;
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out << typeid(typename bg::coordinate_type<Geometry>::type).name()
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<< std::endl
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<< typeid(typename bg::default_length_result<Geometry>::type).name()
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<< std::endl
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<< "length : " << bg::length(geometry, strategy)
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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(length, expected_length, 0.0001);
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}
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template <typename Geometry>
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void test_geometry(std::string const& wkt, double expected_length)
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{
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Geometry geometry;
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bg::read_wkt(wkt, geometry);
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test_length(geometry, expected_length);
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#ifndef BOOST_GEOMETRY_TEST_DEBUG
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using variant_t = boost::variant<Geometry>;
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using variant2_t = boost::variant2::variant<Geometry>;
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using gc_t = bg::model::geometry_collection<variant2_t>;
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test_length(variant_t(geometry), expected_length);
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test_length(variant2_t(geometry), expected_length);
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test_length(gc_t{variant2_t(geometry), variant2_t(geometry)}, expected_length * 2);
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#endif
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}
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template <typename Geometry, typename Strategy>
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void test_geometry(std::string const& wkt, double expected_length, Strategy strategy)
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{
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Geometry geometry;
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bg::read_wkt(wkt, geometry);
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test_length(geometry, expected_length, strategy);
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#ifndef BOOST_GEOMETRY_TEST_DEBUG
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using variant_t = boost::variant<Geometry>;
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using variant2_t = boost::variant2::variant<Geometry>;
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using gc_t = bg::model::geometry_collection<variant2_t>;
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test_length(variant_t(geometry), expected_length, strategy);
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test_length(variant2_t(geometry), expected_length, strategy);
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test_length(gc_t{variant2_t(geometry), variant2_t(geometry)}, expected_length * 2, strategy);
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#endif
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}
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template <typename Geometry>
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void test_empty_input(Geometry const& geometry)
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{
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try
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{
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bg::length(geometry);
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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
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