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// Boost.Geometry (aka GGL, Generic Geometry Library)
// Unit Test
// Copyright (c) 2009-2012 Barend Gehrels, Amsterdam, the Netherlands.
// Use, modification and distribution is subject to the Boost Software License,
// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#define BOOST_GEOMETRY_REPORT_OVERLAY_ERROR
#define BOOST_GEOMETRY_NO_BOOST_TEST
#include <test_overlay_p_q.hpp>
#include <boost/program_options.hpp>
#include <boost/timer.hpp>
#include <boost/random/linear_congruential.hpp>
#include <boost/random/uniform_int.hpp>
#include <boost/random/uniform_real.hpp>
#include <boost/random/variate_generator.hpp>
struct star_params
{
int count; // points of ellipse, not of star
double factor_1;
double factor_2;
double center_x;
double center_y;
double rotation;
star_params(int c, double f1, double f2, double x, double y, double r = 0)
: count(c)
, factor_1(f1)
, factor_2(f2)
, center_x(x)
, center_y(y)
, rotation(r)
{}
};
template <typename Polygon>
inline void make_star(Polygon& polygon, star_params const& p)
{
typedef typename bg::point_type<Polygon>::type P;
typedef typename bg::select_most_precise
<
typename bg::coordinate_type<Polygon>::type,
long double
>::type coordinate_type;
// Create star
coordinate_type cx = 25.0;
coordinate_type cy = 25.0;
coordinate_type dx = 50.0;
coordinate_type dy = 50.0;
coordinate_type half = 0.5;
coordinate_type two = 2.0;
coordinate_type a1 = coordinate_type(p.factor_1) * half * dx;
coordinate_type b1 = coordinate_type(p.factor_1) * half * dy;
coordinate_type a2 = coordinate_type(p.factor_2) * half * dx;
coordinate_type b2 = coordinate_type(p.factor_2) * half * dy;
coordinate_type pi = boost::math::constants::pi<long double>();
coordinate_type delta = pi * two / coordinate_type(p.count - 1);
coordinate_type angle = coordinate_type(p.rotation) * delta;
for (int i = 0; i < p.count - 1; i++, angle += delta)
{
bool even = i % 2 == 0;
coordinate_type s = sin(angle);
coordinate_type c = cos(angle);
coordinate_type x = p.center_x + cx + (even ? a1 : a2) * s;
coordinate_type y = p.center_y + cy + (even ? b1 : b2) * c;
bg::exterior_ring(polygon).push_back(bg::make<P>(x, y));
}
bg::exterior_ring(polygon).push_back(bg::exterior_ring(polygon).front());
bg::correct(polygon);
}
template <typename T, bool Clockwise, bool Closed>
void test_star_ellipse(int seed, int index, star_params const& par_p,
star_params const& par_q, p_q_settings const& settings)
{
typedef bg::model::d2::point_xy<T> point_type;
typedef bg::model::polygon<point_type, Clockwise, Closed> polygon;
polygon p, q;
make_star(p, par_p);
make_star(q, par_q);
std::ostringstream out;
out << "rse_" << seed << "_" << index;
test_overlay_p_q<polygon, T>(out.str(), p, q, settings);
}
template <typename T, bool Clockwise, bool Closed>
void test_type(int seed, int count, p_q_settings const& settings)
{
boost::timer t;
typedef boost::minstd_rand base_generator_type;
//boost::uniform_real<> random_factor(0.5, 1.2);
//boost::uniform_real<> random_location(-10.0, 10.0);
//boost::uniform_int<> random_points(5, 20);
// This set (next 4 lines) are now solved for the most part
// 2009-12-03, 3 or 4 errors in 1000000 calls
// 2009-12-07, no errors in 1000000 calls
//boost::uniform_real<> random_factor(1.0 - 1e-3, 1.0 + 1e-3);
//boost::uniform_real<> random_location(-1e-3, 1e-3);
//boost::uniform_real<> random_rotation(-1e-3, 1e-3);
//boost::uniform_int<> random_points(3, 3);
// 2009-12-08, still errors, see notes
// 2009-12-09, (probably) solved by order on side
// 2010-01-16: solved (no errors in 1000000 calls)
//boost::uniform_real<> random_factor(1.0 - 1e-3, 1.0 + 1e-3);
//boost::uniform_real<> random_location(-1e-3, -1e-3);
//boost::uniform_real<> random_rotation(-1e-3, 1e-3);
//boost::uniform_int<> random_points(3, 4);
// This set (next 4 lines) are now solved ("distance-zero"/"merge iiii" problem)
// 2009-12-03: 5,50 -> 2:1 000 000 wrong (2009-12-03)
// 2010-01-16: solved (no errors in 10000000 calls)
boost::uniform_real<> random_factor(0.3, 1.2);
boost::uniform_real<> random_location(-20.0, +20.0); // -25.0, +25.0
boost::uniform_real<> random_rotation(0, 0.5);
boost::uniform_int<> random_points(5, 15);
base_generator_type generator(seed);
boost::variate_generator<base_generator_type&, boost::uniform_real<> >
factor_generator(generator, random_factor);
boost::variate_generator<base_generator_type&, boost::uniform_real<> >
location_generator(generator, random_location);
boost::variate_generator<base_generator_type&, boost::uniform_real<> >
rotation_generator(generator, random_rotation);
boost::variate_generator<base_generator_type&, boost::uniform_int<> >
int_generator(generator, random_points);
for(int i = 0; i < count; i++)
{
test_star_ellipse<T, Clockwise, Closed>(seed, i + 1,
star_params(int_generator() * 2 + 1,
factor_generator(), factor_generator(),
location_generator(), location_generator(), rotation_generator()),
star_params(int_generator() * 2 + 1,
factor_generator(), factor_generator(),
location_generator(), location_generator(), rotation_generator()),
settings);
}
std::cout
<< "type: " << string_from_type<T>::name()
<< " time: " << t.elapsed() << std::endl;
}
template <bool Clockwise, bool Closed>
void test_all(std::string const& type, int seed, int count, p_q_settings settings)
{
if (type == "float")
{
settings.tolerance = 1.0e-3;
test_type<float, Clockwise, Closed>(seed, count, settings);
}
else if (type == "double")
{
test_type<double, Clockwise, Closed>(seed, count, settings);
}
#if defined(HAVE_TTMATH)
else if (type == "ttmath")
{
test_type<ttmath_big, Clockwise, Closed>(seed, count, settings);
}
#endif
}
int main(int argc, char** argv)
{
try
{
namespace po = boost::program_options;
po::options_description description("=== random_ellipses_stars ===\nAllowed options");
int count = 1;
int seed = static_cast<unsigned int>(std::time(0));
std::string type = "float";
bool ccw = false;
bool open = false;
p_q_settings settings;
description.add_options()
("help", "Help message")
("seed", po::value<int>(&seed), "Initialization seed for random generator")
("count", po::value<int>(&count)->default_value(1), "Number of tests")
("diff", po::value<bool>(&settings.also_difference)->default_value(false), "Include testing on difference")
("ccw", po::value<bool>(&ccw)->default_value(false), "Counter clockwise polygons")
("open", po::value<bool>(&open)->default_value(false), "Open polygons")
("type", po::value<std::string>(&type)->default_value("float"), "Type (float,double)")
("wkt", po::value<bool>(&settings.wkt)->default_value(false), "Create a WKT of the inputs, for all tests")
("svg", po::value<bool>(&settings.svg)->default_value(false), "Create a SVG for all tests")
;
po::variables_map varmap;
po::store(po::parse_command_line(argc, argv, description), varmap);
po::notify(varmap);
if (varmap.count("help"))
{
std::cout << description << std::endl;
return 1;
}
if (ccw && open)
{
test_all<false, false>(type, seed, count, settings);
}
else if (ccw)
{
test_all<false, true>(type, seed, count, settings);
}
else if (open)
{
test_all<true, false>(type, seed, count, settings);
}
else
{
test_all<true, true>(type, seed, count, settings);
}
}
catch(std::exception const& e)
{
std::cout << "Exception " << e.what() << std::endl;
}
catch(...)
{
std::cout << "Other exception" << std::endl;
}
return 0;
}
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