ceph/src/boost/libs/geometry/test/robustness/overlay/areal_areal/intersection_stars.cpp

   1 // Boost.Geometry (aka GGL, Generic Geometry Library)
   2 // Unit Test
   3
   4 // Copyright (c) 2009-2012 Barend Gehrels, Amsterdam, the Netherlands.
   5
   6 // Use, modification and distribution is subject to the Boost Software License,
   7 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
   8 // http://www.boost.org/LICENSE_1_0.txt)
   9
  10 #include <iostream>
  11 #include <string>
  12
  13 #define BOOST_GEOMETRY_NO_BOOST_TEST
  14
  15
  16 #include <test_overlay_p_q.hpp>
  17
  18 #include <boost/program_options.hpp>
  19 #include <boost/timer.hpp>
  20
  21 template <typename Polygon>
  22 inline void make_star(Polygon& polygon,
  23     int count, double factor1, double factor2, long double offset = 0)
  24 {
  25     typedef typename bg::point_type<Polygon>::type p;
  26     typedef typename bg::select_most_precise
  27         <
  28             typename bg::coordinate_type<Polygon>::type,
  29             long double
  30         >::type coordinate_type;
  31
  32     // Create star
  33     coordinate_type cx = 25.0;
  34     coordinate_type cy = 25.0;
  35
  36     coordinate_type dx = 50.0;
  37     coordinate_type dy = 50.0;
  38
  39     coordinate_type half = 0.5;
  40     coordinate_type two = 2.0;
  41
  42     coordinate_type a1 = coordinate_type(factor1) * half * dx;
  43     coordinate_type b1 = coordinate_type(factor1) * half * dy;
  44     coordinate_type a2 = coordinate_type(factor2) * half * dx;
  45     coordinate_type b2 = coordinate_type(factor2) * half * dy;
  46
  47     coordinate_type pi = boost::math::constants::pi<long double>();
  48     coordinate_type delta = pi * two / coordinate_type(count - 1);
  49     coordinate_type angle = coordinate_type(offset) * delta;
  50     for (int i = 0; i < count - 1; i++, angle += delta)
  51     {
  52         bool even = i % 2 == 0;
  53         coordinate_type s = sin(angle);
  54         coordinate_type c = cos(angle);
  55         coordinate_type x = cx + (even ? a1 : a2) * s;
  56         coordinate_type y = cy + (even ? b1 : b2) * c;
  57         bg::exterior_ring(polygon).push_back(bg::make<p>(x, y));
  58
  59     }
  60     bg::exterior_ring(polygon).push_back(bg::exterior_ring(polygon).front());
  61 }
  62
  63
  64 template <typename T, typename CalculationType>
  65 void test_star(int count, int min_points, int max_points, T rotation, p_q_settings const& settings)
  66 {
  67     boost::timer t;
  68     typedef bg::model::d2::point_xy<T> point_type;
  69     typedef bg::model::polygon<point_type> polygon;
  70
  71     int n = 0;
  72     for (int c = 0; c < count; c++)
  73     {
  74         for (int i = min_points; i <= max_points; i++)
  75         {
  76             std::ostringstream out;
  77             out << "_" << string_from_type<T>::name() << "_"
  78                 << string_from_type<CalculationType>::name() << "_"
  79                 << i << "_int";
  80
  81             polygon p;
  82             make_star(p, i * 2 + 1, 0.5, 1.0);
  83             polygon q;
  84             make_star(q, i * 2 + 1, 0.5, 1.0, rotation);
  85
  86             if (! test_overlay_p_q
  87                 <
  88                     polygon,
  89                     CalculationType
  90                 >(out.str(), p, q, settings))
  91             {
  92                 return;
  93             }
  94             n++;
  95         }
  96     }
  97     std::cout
  98         << "polygons: " << n
  99         << " type: " << string_from_type<T>::name()
 100         << " time: " << t.elapsed()  << std::endl;
 101 }
 102
 103 template <typename T, typename CalculationType>
 104 void test_type(int count, int min_points, int max_points, T rotation, p_q_settings const& settings)
 105 {
 106     test_star<T, CalculationType>(count, min_points, max_points, rotation, settings);
 107 }
 108
 109 template <typename T>
 110 void test_all(std::string const& type, int count, int min_points, int max_points, T rotation, p_q_settings settings)
 111 {
 112     if (type == "float")
 113     {
 114         settings.tolerance = 1.0e-3;
 115         test_type<float, float>(count, min_points, max_points, rotation, settings);
 116     }
 117     else if (type == "double")
 118     {
 119         test_type<double, double>(count, min_points, max_points, rotation, settings);
 120     }
 121 #if defined(HAVE_TTMATH)
 122     else if (type == "ttmath")
 123     {
 124         test_type<ttmath_big, ttmath_big>(count, min_points, max_points, rotation, settings);
 125     }
 126 #endif
 127 }
 128
 129 int main(int argc, char** argv)
 130 {
 131     try
 132     {
 133         namespace po = boost::program_options;
 134         po::options_description description("=== recursive_polygons ===\nAllowed options");
 135
 136         int count = 1;
 137         //int seed = static_cast<unsigned int>(std::time(0));
 138         std::string type = "float";
 139         int min_points = 9;
 140         int max_points = 9;
 141         bool ccw = false;
 142         bool open = false;
 143         double rotation = 1.0e-13;
 144         p_q_settings settings;
 145
 146         description.add_options()
 147             ("help", "Help message")
 148             //("seed", po::value<int>(&seed), "Initialization seed for random generator")
 149             ("count", po::value<int>(&count)->default_value(1), "Number of tests")
 150             ("diff", po::value<bool>(&settings.also_difference)->default_value(false), "Include testing on difference")
 151             ("min_points", po::value<int>(&min_points)->default_value(9), "Minimum number of points")
 152             ("max_points", po::value<int>(&max_points)->default_value(9), "Maximum number of points")
 153             ("rotation", po::value<double>(&rotation)->default_value(1.0e-13), "Rotation angle")
 154             ("ccw", po::value<bool>(&ccw)->default_value(false), "Counter clockwise polygons")
 155             ("open", po::value<bool>(&open)->default_value(false), "Open polygons")
 156             ("type", po::value<std::string>(&type)->default_value("float"), "Type (float,double)")
 157             ("wkt", po::value<bool>(&settings.wkt)->default_value(false), "Create a WKT of the inputs, for all tests")
 158             ("svg", po::value<bool>(&settings.svg)->default_value(false), "Create a SVG for all tests")
 159         ;
 160
 161         po::variables_map varmap;
 162         po::store(po::parse_command_line(argc, argv, description), varmap);
 163         po::notify(varmap);
 164
 165         if (varmap.count("help"))
 166         {
 167             std::cout << description << std::endl;
 168             return 1;
 169         }
 170
 171         test_all(type, count, min_points, max_points, rotation, settings);
 172     }
 173     catch(std::exception const& e)
 174     {
 175         std::cout << "Exception " << e.what() << std::endl;
 176     }
 177     catch(...)
 178     {
 179         std::cout << "Other exception" << std::endl;
 180     }
 181     return 0;
 182 }