134 lines
5.6 KiB
C++
134 lines
5.6 KiB
C++
// Boost.Geometry Index
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// Unit Test
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// Copyright (c) 2011-2013 Adam Wulkiewicz, Lodz, Poland.
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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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#include <geometry_index_test_common.hpp>
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#include <boost/geometry/index/detail/algorithms/path_intersection.hpp>
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#include <boost/geometry/geometries/point_xy.hpp>
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#include <boost/geometry/geometries/point.hpp>
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#include <boost/geometry/geometries/box.hpp>
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#include <boost/geometry/geometries/linestring.hpp>
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#include <boost/geometry/geometries/segment.hpp>
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//#include <boost/geometry/io/wkt/read.hpp>
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template <typename Box, typename Linestring>
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void test_path_intersection(Box const& box, Linestring const& path,
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bool expected_result,
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typename bg::default_length_result<Linestring>::type expected_dist)
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{
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typename bgi::detail::default_path_intersection_distance_type<Box, Linestring>::type dist;
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bool value = bgi::detail::path_intersection(box, path, dist);
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BOOST_CHECK(value == expected_result);
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if ( value && expected_result )
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BOOST_CHECK_CLOSE(dist, expected_dist, 0.0001);
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if ( ::boost::size(path) == 2 )
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{
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typedef typename ::boost::range_value<Linestring>::type P;
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typedef bg::model::segment<P> Seg;
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typename bgi::detail::default_path_intersection_distance_type<Box, Seg>::type dist;
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Seg seg(*::boost::begin(path), *(::boost::begin(path)+1));
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bool value = bgi::detail::path_intersection(box, seg, dist);
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BOOST_CHECK(value == expected_result);
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if ( value && expected_result )
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BOOST_CHECK_CLOSE(dist, expected_dist, 0.0001);
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}
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}
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template <typename Box, typename Linestring>
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void test_geometry(std::string const& wkt_g, std::string const& wkt_path,
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bool expected_result,
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typename bg::default_length_result<Linestring>::type expected_dist)
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{
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Box box;
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bg::read_wkt(wkt_g, box);
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Linestring path;
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bg::read_wkt(wkt_path, path);
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test_path_intersection(box, path, expected_result, expected_dist);
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}
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void test_large_integers()
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{
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typedef bg::model::point<int, 2, bg::cs::cartesian> int_point_type;
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typedef bg::model::point<double, 2, bg::cs::cartesian> double_point_type;
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bg::model::box<int_point_type> int_box;
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bg::model::box<double_point_type> double_box;
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typedef bg::model::linestring<int_point_type> IP;
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IP int_path;
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typedef bg::model::linestring<double_point_type> DP;
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DP double_path;
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std::string const str_box = "POLYGON((1536119 192000, 1872000 528000))";
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std::string const str_path = "LINESTRING(1535000 191000, 1873000 191000, 1873000 300000, 1536119 300000)";
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bg::read_wkt(str_box, int_box);
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bg::read_wkt(str_box, double_box);
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bg::read_wkt(str_path, int_path);
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bg::read_wkt(str_path, double_path);
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bg::default_length_result<IP>::type int_value;
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bool int_result = bgi::detail::path_intersection(int_box, int_path, int_value);
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bg::default_length_result<DP>::type double_value;
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bool double_result = bgi::detail::path_intersection(double_box, double_path, double_value);
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BOOST_CHECK(int_result == double_result);
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if ( int_result && double_result )
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BOOST_CHECK_CLOSE(int_value, double_value, 0.0001);
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}
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int test_main(int, char* [])
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{
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typedef bg::model::point<int, 2, bg::cs::cartesian> P2ic;
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typedef bg::model::point<float, 2, bg::cs::cartesian> P2fc;
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typedef bg::model::point<double, 2, bg::cs::cartesian> P2dc;
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typedef bg::model::point<int, 3, bg::cs::cartesian> P3ic;
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typedef bg::model::point<float, 3, bg::cs::cartesian> P3fc;
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typedef bg::model::point<double, 3, bg::cs::cartesian> P3dc;
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typedef bg::model::linestring<P2ic> L2ic;
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typedef bg::model::linestring<P2fc> L2fc;
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typedef bg::model::linestring<P2dc> L2dc;
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typedef bg::model::linestring<P3ic> L3ic;
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typedef bg::model::linestring<P3fc> L3fc;
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typedef bg::model::linestring<P3dc> L3dc;
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// IMPORTANT! For 2-point linestrings comparable distance optimization is enabled!
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test_geometry<bg::model::box<P2ic>, L2ic>("POLYGON((0 1,2 4))", "LINESTRING(0 0, 2 5)", true, 1.0f/5);
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test_geometry<bg::model::box<P2fc>, L2fc>("POLYGON((0 1,2 4))", "LINESTRING(0 0, 2 5)", true, 1.0f/5);
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test_geometry<bg::model::box<P2dc>, L2dc>("POLYGON((0 1,2 4))", "LINESTRING(0 0, 2 5)", true, 1.0/5);
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test_geometry<bg::model::box<P3ic>, L3ic>("POLYGON((0 1 2,2 4 6))", "LINESTRING(0 0 0, 2 5 7)", true, 2.0f/7);
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test_geometry<bg::model::box<P3fc>, L3fc>("POLYGON((0 1 2,2 4 6))", "LINESTRING(0 0 0, 2 5 7)", true, 2.0f/7);
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test_geometry<bg::model::box<P3dc>, L3dc>("POLYGON((0 1 2,2 4 6))", "LINESTRING(0 0 0, 2 5 7)", true, 2.0/7);
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test_geometry<bg::model::box<P2fc>, L2fc>("POLYGON((0 1,2 4))", "LINESTRING(0 0, 1 0, 1 5)", true, 2);
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test_geometry<bg::model::box<P2fc>, L2fc>("POLYGON((0 1,2 4))", "LINESTRING(0 0, 3 0, 3 2, 0 2)", true, 6);
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test_geometry<bg::model::box<P2fc>, L2fc>("POLYGON((0 1,2 4))", "LINESTRING(1 2, 3 3, 0 3)", true, 0);
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#ifdef HAVE_TTMATH
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typedef bg::model::point<ttmath_big, 2, bg::cs::cartesian> P2ttmc;
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typedef bg::model::point<ttmath_big, 3, bg::cs::cartesian> P3ttmc;
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typedef bg::model::linestring<P2ttmc> L2ttmc;
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typedef bg::model::linestring<P3ttmc> L3ttmc;
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test_geometry<bg::model::box<P2ttmc>, L2ttmc>("POLYGON((0 1,2 4))", "LINESTRING(0 0, 2 5)", true, 1.0/5);
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test_geometry<bg::model::box<P3ttmc>, L3ttmc>("POLYGON((0 1 2,2 4 6))", "LINESTRING(0 0 0, 2 5 7)", true, 2.0/7);
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#endif
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test_large_integers();
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return 0;
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}
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