mirror of
https://github.com/boostorg/geometry.git
synced 2025-05-10 15:44:07 +00:00
205 lines
6.4 KiB
C++
205 lines
6.4 KiB
C++
// Boost.Geometry (aka GGL, Generic Geometry Library) test file
|
|
//
|
|
// Copyright Barend Gehrels 2007-2009, Geodan, Amsterdam, the Netherlands
|
|
// Copyright Bruno Lalande 2008, 2009
|
|
// 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 TEST_ARRAY
|
|
|
|
#include <sstream>
|
|
|
|
#include <boost/mpl/if.hpp>
|
|
#include <ggl_test_common.hpp>
|
|
|
|
|
|
#include <boost/geometry/algorithms/distance.hpp>
|
|
#include <boost/geometry/strategies/strategies.hpp>
|
|
|
|
#ifndef TEST_ARRAY
|
|
#include <boost/geometry/algorithms/make.hpp>
|
|
#endif
|
|
|
|
#include <boost/geometry/geometries/geometries.hpp>
|
|
#include <boost/geometry/geometries/adapted/boost_array_as_linestring.hpp>
|
|
#include <boost/geometry/geometries/adapted/c_array_cartesian.hpp>
|
|
#include <boost/geometry/geometries/adapted/tuple_cartesian.hpp>
|
|
#include <test_common/test_point.hpp>
|
|
|
|
|
|
template <typename P>
|
|
void test_distance_result()
|
|
{
|
|
typedef typename boost::geometry::distance_result<P, P>::type distance_type;
|
|
|
|
#ifndef TEST_ARRAY
|
|
P p1 = boost::geometry::make<P>(0, 0);
|
|
P p2 = boost::geometry::make<P>(3, 0);
|
|
P p3 = boost::geometry::make<P>(0, 4);
|
|
#else
|
|
P p1, p2, p3;
|
|
boost::geometry::set<0>(p1, 0); boost::geometry::set<1>(p1, 0);
|
|
boost::geometry::set<0>(p2, 3); boost::geometry::set<1>(p2, 0);
|
|
boost::geometry::set<0>(p3, 0); boost::geometry::set<1>(p3, 4);
|
|
#endif
|
|
|
|
distance_type dr12 = boost::geometry::distance(p1, p2);
|
|
distance_type dr13 = boost::geometry::distance(p1, p3);
|
|
distance_type dr23 = boost::geometry::distance(p2, p3);
|
|
|
|
BOOST_CHECK_CLOSE(double(dr12), 3.000, 0.001);
|
|
BOOST_CHECK_CLOSE(double(dr13), 4.000, 0.001);
|
|
BOOST_CHECK_CLOSE(double(dr23), 5.000, 0.001);
|
|
|
|
// COMPILATION TESTS
|
|
distance_type comparable = boost::geometry::make_distance_result<distance_type>(3);
|
|
//BOOST_CHECK_CLOSE(comparable.value(), 9.000, 0.001);
|
|
|
|
|
|
// Question: how to check if the implemented operator is used, and not the auto-conversion to double?
|
|
if (comparable == dr12) {};
|
|
if (comparable < dr12) {};
|
|
if (comparable > dr12) {};
|
|
|
|
// Check streamability
|
|
std::ostringstream s;
|
|
s << comparable;
|
|
|
|
// Check comparisons with plain double
|
|
double d = 3.0;
|
|
if (dr12 == d) {};
|
|
if (dr12 < d) {};
|
|
if (dr12 > d) {};
|
|
|
|
}
|
|
|
|
template <typename P>
|
|
void test_distance_point()
|
|
{
|
|
P p1;
|
|
boost::geometry::set<0>(p1, 1);
|
|
boost::geometry::set<1>(p1, 1);
|
|
|
|
P p2;
|
|
boost::geometry::set<0>(p2, 2);
|
|
boost::geometry::set<1>(p2, 2);
|
|
|
|
double d = boost::geometry::distance(p1, p2);
|
|
BOOST_CHECK_CLOSE(d, 1.4142135, 0.001);
|
|
}
|
|
|
|
template <typename P>
|
|
void test_distance_segment()
|
|
{
|
|
typedef typename boost::geometry::coordinate_type<P>::type coordinate_type;
|
|
|
|
P s1; boost::geometry::set<0>(s1, 2); boost::geometry::set<1>(s1, 2);
|
|
P s2; boost::geometry::set<0>(s2, 3); boost::geometry::set<1>(s2, 3);
|
|
|
|
// Check points left, right, projected-left, projected-right, on segment
|
|
P p1; boost::geometry::set<0>(p1, 0); boost::geometry::set<1>(p1, 0);
|
|
P p2; boost::geometry::set<0>(p2, 4); boost::geometry::set<1>(p2, 4);
|
|
P p3; boost::geometry::set<0>(p3, coordinate_type(2.4)); boost::geometry::set<1>(p3, coordinate_type(2.6));
|
|
P p4; boost::geometry::set<0>(p4, coordinate_type(2.6)); boost::geometry::set<1>(p4, coordinate_type(2.4));
|
|
P p5; boost::geometry::set<0>(p5, 2.5); boost::geometry::set<1>(p5, 2.5);
|
|
|
|
const boost::geometry::segment<const P> seg(s1, s2);
|
|
|
|
double d1 = boost::geometry::distance(p1, seg); BOOST_CHECK_CLOSE(d1, 2.8284271, 0.001);
|
|
double d2 = boost::geometry::distance(p2, seg); BOOST_CHECK_CLOSE(d2, 1.4142135, 0.001);
|
|
double d3 = boost::geometry::distance(p3, seg); BOOST_CHECK_CLOSE(d3, 0.141421, 0.001);
|
|
double d4 = boost::geometry::distance(p4, seg); BOOST_CHECK_CLOSE(d4, 0.141421, 0.001);
|
|
double d5 = boost::geometry::distance(p5, seg); BOOST_CHECK_CLOSE(d5, 0.0, 0.001);
|
|
|
|
// Reverse case
|
|
double dr1 = boost::geometry::distance(seg, p1); BOOST_CHECK_CLOSE(dr1, d1, 0.001);
|
|
double dr2 = boost::geometry::distance(seg, p2); BOOST_CHECK_CLOSE(dr2, d2, 0.001);
|
|
}
|
|
|
|
template <typename P>
|
|
void test_distance_linestring()
|
|
{
|
|
typedef typename boost::geometry::coordinate_type<P>::type coordinate_type;
|
|
|
|
boost::array<P, 2> points;
|
|
boost::geometry::set<0>(points[0], 1);
|
|
boost::geometry::set<1>(points[0], 1);
|
|
boost::geometry::set<0>(points[1], 3);
|
|
boost::geometry::set<1>(points[1], 3);
|
|
|
|
#ifndef TEST_ARRAY
|
|
P p = boost::geometry::make<P>(2, 1);
|
|
#else
|
|
P p;
|
|
boost::geometry::set<0>(p, 2); boost::geometry::set<1>(p, 1);
|
|
#endif
|
|
|
|
double d = boost::geometry::distance(p, points);
|
|
BOOST_CHECK_CLOSE(d, 0.70710678, 0.001);
|
|
|
|
#ifndef TEST_ARRAY
|
|
p = boost::geometry::make<P>(5, 5);
|
|
#else
|
|
boost::geometry::set<0>(p, 5); boost::geometry::set<1>(p, 5);
|
|
#endif
|
|
d = boost::geometry::distance(p, points);
|
|
BOOST_CHECK_CLOSE(d, 2.828427, 0.001);
|
|
|
|
|
|
boost::geometry::linestring<P> line;
|
|
#ifndef TEST_ARRAY
|
|
line.push_back(boost::geometry::make<P>(1,1));
|
|
line.push_back(boost::geometry::make<P>(2,2));
|
|
line.push_back(boost::geometry::make<P>(3,3));
|
|
#else
|
|
{
|
|
P lp;
|
|
boost::geometry::set<0>(lp, 1); boost::geometry::set<1>(lp, 1); line.push_back(lp);
|
|
boost::geometry::set<0>(lp, 2); boost::geometry::set<1>(lp, 2); line.push_back(lp);
|
|
boost::geometry::set<0>(lp, 3); boost::geometry::set<1>(lp, 3); line.push_back(lp);
|
|
}
|
|
#endif
|
|
|
|
#ifndef TEST_ARRAY
|
|
p = boost::geometry::make<P>(5, 5);
|
|
#else
|
|
boost::geometry::set<0>(p, 5); boost::geometry::set<1>(p, 5);
|
|
#endif
|
|
|
|
d = boost::geometry::distance(p, line);
|
|
BOOST_CHECK_CLOSE(d, 2.828427, 0.001);
|
|
|
|
// Reverse case
|
|
d = boost::geometry::distance(line, p);
|
|
BOOST_CHECK_CLOSE(d, 2.828427, 0.001);
|
|
}
|
|
|
|
template <typename P>
|
|
void test_all()
|
|
{
|
|
test_distance_result<P>();
|
|
test_distance_point<P>();
|
|
test_distance_segment<P>();
|
|
#ifndef TEST_ARRAY
|
|
test_distance_linestring<P>();
|
|
#endif
|
|
}
|
|
|
|
int test_main(int, char* [])
|
|
{
|
|
#ifdef TEST_ARRAY
|
|
//test_all<int[2]>();
|
|
test_all<float[2]>();
|
|
test_all<double[2]>();
|
|
test_all<test::test_point>(); // located here because of 3D
|
|
#endif
|
|
|
|
//test_all<boost::geometry::point_xy<int> >();
|
|
test_all<boost::tuple<float, float> >();
|
|
test_all<boost::geometry::point_xy<float> >();
|
|
test_all<boost::geometry::point_xy<double> >();
|
|
|
|
return 0;
|
|
}
|