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230 lines
7.1 KiB
C++
230 lines
7.1 KiB
C++
// Boost.Geometry (aka GGL, Generic Geometry Library)
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// Robustness Test
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// Copyright (c) 2009-2021 Barend Gehrels, 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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#define BOOST_GEOMETRY_NO_BOOST_TEST
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#define BOOST_GEOMETRY_NO_ROBUSTNESS
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#define BOOST_GEOMETRY_TEST_ONLY_ONE_TYPE
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#include <test_overlay_p_q.hpp>
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#include <sstream>
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#include <chrono>
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#include <boost/program_options.hpp>
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#include <boost/random/linear_congruential.hpp>
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#include <boost/random/uniform_int.hpp>
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#include <boost/random/uniform_real.hpp>
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#include <boost/random/variate_generator.hpp>
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template <typename Polygon, typename Generator>
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inline void make_polygon(Polygon& polygon, Generator& generator, bool triangular)
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{
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typedef typename bg::point_type<Polygon>::type point_type;
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typedef typename bg::coordinate_type<Polygon>::type coordinate_type;
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coordinate_type x, y;
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x = generator();
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y = generator();
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typename bg::ring_type<Polygon>::type& ring = bg::exterior_ring(polygon);
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point_type p;
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bg::set<0>(p, x); bg::set<1>(p, y); ring.push_back(p);
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bg::set<0>(p, x); bg::set<1>(p, y + 1); ring.push_back(p);
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bg::set<0>(p, x + 1); bg::set<1>(p, y + 1); ring.push_back(p);
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bg::set<0>(p, x + 1); bg::set<1>(p, y); ring.push_back(p);
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bg::set<0>(p, x); bg::set<1>(p, y); ring.push_back(p);
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if (triangular)
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{
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// Remove a point depending on generator
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int c = generator() % 4;
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if (c >= 1 && c <= 3)
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{
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ring.erase(ring.begin() + c);
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}
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}
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}
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template <typename MultiPolygon, typename Generator>
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bool test_recursive_boxes(MultiPolygon& result, int& index,
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Generator& generator,
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int level, bool triangular, p_q_settings const& settings)
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{
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MultiPolygon p, q;
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// Generate two boxes
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if (level == 0)
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{
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p.resize(1);
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q.resize(1);
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make_polygon(p.front(), generator, triangular);
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make_polygon(q.front(), generator, triangular);
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bg::correct(p);
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bg::correct(q);
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}
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else
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{
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bg::correct(p);
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bg::correct(q);
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if (! test_recursive_boxes(p, index, generator, level - 1, triangular, settings)
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|| ! test_recursive_boxes(q, index, generator, level - 1, triangular, settings))
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{
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return false;
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}
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}
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typedef typename boost::range_value<MultiPolygon>::type polygon;
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std::ostringstream out;
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out << "recursive_box_" << index++ << "_" << level;
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if (! test_overlay_p_q
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<
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polygon,
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typename bg::coordinate_type<MultiPolygon>::type
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>(out.str(), p, q, settings))
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{
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return false;
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}
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MultiPolygon mp;
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bg::detail::union_::union_insert
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<
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polygon
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>(p, q, std::back_inserter(mp));
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bg::unique(mp);
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bg::simplify(mp, result, 0.01);
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bg::correct(mp);
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return true;
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}
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template <typename T, bool Clockwise, bool Closed>
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void test_all(int seed, int count, int field_size, int level, bool triangular, p_q_settings const& settings)
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{
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auto const t0 = std::chrono::high_resolution_clock::now();
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typedef boost::minstd_rand base_generator_type;
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base_generator_type generator(seed);
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boost::uniform_int<> random_coordinate(0, field_size - 1);
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boost::variate_generator<base_generator_type&, boost::uniform_int<> >
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coordinate_generator(generator, random_coordinate);
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typedef bg::model::polygon
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<
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bg::model::d2::point_xy<T>, Clockwise, Closed
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> polygon;
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typedef bg::model::multi_polygon<polygon> mp;
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int index = 0;
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int errors = 0;
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for(int i = 0; i < count; i++)
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{
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mp p;
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if (! test_recursive_boxes<mp>(p, index, coordinate_generator, level, triangular, settings))
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{
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errors++;
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}
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}
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auto const t = std::chrono::high_resolution_clock::now();
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auto const elapsed_ms = std::chrono::duration_cast<std::chrono::milliseconds>(t - t0).count();
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std::cout
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<< "geometries: " << index
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<< " errors: " << errors
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<< " type: " << string_from_type<T>::name()
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<< " time: " << elapsed_ms / 1000.0 << std::endl;
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}
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int main(int argc, char** argv)
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{
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BoostGeometryWriteTestConfiguration();
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try
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{
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namespace po = boost::program_options;
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po::options_description description("=== recursive_polygons ===\nAllowed options");
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int count = 1;
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int seed = static_cast<unsigned int>(std::time(0));
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int level = 3;
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int field_size = 10;
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bool ccw = false;
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bool open = false;
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p_q_settings settings;
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std::string form = "box";
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description.add_options()
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("help", "Help message")
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("seed", po::value<int>(&seed), "Initialization seed for random generator")
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("count", po::value<int>(&count)->default_value(1), "Number of tests")
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("diff", po::value<bool>(&settings.also_difference)->default_value(false), "Include testing on difference")
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("validity", po::value<bool>(&settings.validity)->default_value(true), "Include testing on validity")
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("level", po::value<int>(&level)->default_value(3), "Level to reach (higher->slower)")
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("size", po::value<int>(&field_size)->default_value(10), "Size of the field")
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("form", po::value<std::string>(&form)->default_value("box"), "Form of the polygons (box, triangle)")
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#if ! defined(BOOST_GEOMETRY_TEST_ONLY_ONE_TYPE)
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("ccw", po::value<bool>(&ccw)->default_value(false), "Counter clockwise polygons")
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("open", po::value<bool>(&open)->default_value(false), "Open polygons")
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#endif
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("wkt", po::value<bool>(&settings.wkt)->default_value(false), "Create a WKT of the inputs, for all tests")
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("svg", po::value<bool>(&settings.svg)->default_value(false), "Create a SVG for all tests")
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;
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po::variables_map varmap;
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po::store(po::parse_command_line(argc, argv, description), varmap);
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po::notify(varmap);
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if (varmap.count("help")
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|| (form != "box" && form != "triangle"))
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{
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std::cout << description << std::endl;
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return 1;
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}
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bool triangular = form != "box";
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#if ! defined(BOOST_GEOMETRY_TEST_ONLY_ONE_TYPE)
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if (ccw && open)
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{
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test_all<default_test_type, false, false>(seed, count, field_size, level, triangular, settings);
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}
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else if (ccw)
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{
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test_all<default_test_type, false, true>(seed, count, field_size, level, triangular, settings);
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}
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else if (open)
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{
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test_all<default_test_type, true, false>(seed, count, field_size, level, triangular, settings);
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}
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else
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#endif
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{
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test_all<default_test_type, true, true>(seed, count, field_size, level, triangular, settings);
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}
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}
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catch(std::exception const& e)
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{
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std::cout << "Exception " << e.what() << std::endl;
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}
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catch(...)
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{
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std::cout << "Other exception" << std::endl;
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}
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return 0;
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}
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