278 lines
6.5 KiB
C++
278 lines
6.5 KiB
C++
// Boost.Geometry (aka GGL, Generic Geometry Library)
|
|
// Unit Test
|
|
|
|
// Copyright (c) 2007-2012 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)
|
|
|
|
#ifndef BOOST_GEOMETRY_TEST_FOR_EACH_HPP
|
|
#define BOOST_GEOMETRY_TEST_FOR_EACH_HPP
|
|
|
|
#include <geometry_test_common.hpp>
|
|
|
|
#include <boost/config.hpp>
|
|
#include <boost/geometry/algorithms/for_each.hpp>
|
|
|
|
#include <boost/geometry/algorithms/distance.hpp>
|
|
#include <boost/geometry/strategies/strategies.hpp>
|
|
#include <boost/geometry/io/wkt/wkt.hpp>
|
|
#include <boost/geometry/io/dsv/write.hpp>
|
|
|
|
|
|
template<typename Point>
|
|
inline void translate_x_function(Point& p)
|
|
{
|
|
bg::set<0>(p, bg::get<0>(p) + 100.0);
|
|
}
|
|
|
|
template<typename Point>
|
|
struct scale_y_functor
|
|
{
|
|
inline void operator()(Point& p)
|
|
{
|
|
bg::set<1>(p, bg::get<1>(p) * 100.0);
|
|
}
|
|
};
|
|
|
|
template<typename Point>
|
|
struct sum_x_functor
|
|
{
|
|
typename bg::coordinate_type<Point>::type sum;
|
|
|
|
sum_x_functor()
|
|
: sum(0)
|
|
{}
|
|
|
|
inline void operator()(Point const& p)
|
|
{
|
|
sum += bg::get<0>(p);
|
|
}
|
|
};
|
|
|
|
// Per segment
|
|
static std::ostringstream g_out;
|
|
|
|
template<typename Segment>
|
|
inline void stream_segment(Segment const& s)
|
|
{
|
|
g_out << bg::dsv(s) << " ";
|
|
}
|
|
|
|
template<typename Segment>
|
|
struct sum_segment_length
|
|
{
|
|
typename bg::coordinate_type<Segment>::type sum;
|
|
|
|
sum_segment_length()
|
|
: sum(0)
|
|
{}
|
|
inline void operator()(Segment const& s)
|
|
{
|
|
sum += bg::distance(s.first, s.second);
|
|
}
|
|
};
|
|
|
|
template<typename Segment>
|
|
inline void modify_segment(Segment& s)
|
|
{
|
|
if (bg::math::equals(bg::get<0,0>(s), 1.0))
|
|
{
|
|
bg::set<0,0>(s, 10.0);
|
|
}
|
|
}
|
|
|
|
|
|
template <typename Geometry>
|
|
void test_per_point_const(Geometry const& geometry, int expected)
|
|
{
|
|
typedef typename bg::point_type<Geometry>::type point_type;
|
|
|
|
// Class (functor)
|
|
sum_x_functor<point_type> functor;
|
|
functor = bg::for_each_point(geometry, functor);
|
|
BOOST_CHECK_EQUAL(functor.sum, expected);
|
|
|
|
|
|
// Lambda
|
|
#if !defined(BOOST_NO_CXX11_LAMBDAS)
|
|
|
|
typename bg::coordinate_type<point_type>::type sum_x = 0;
|
|
|
|
bg::for_each_point
|
|
(
|
|
geometry,
|
|
[&sum_x](point_type const& p)
|
|
{
|
|
sum_x += bg::get<0>(p);
|
|
}
|
|
|
|
);
|
|
|
|
BOOST_CHECK_EQUAL(sum_x, expected);
|
|
#endif
|
|
}
|
|
|
|
template <typename Geometry>
|
|
void test_per_point_non_const(Geometry& geometry,
|
|
std::string const& expected1,
|
|
std::string const& expected2)
|
|
{
|
|
#if !defined(BOOST_NO_CXX11_LAMBDAS)
|
|
Geometry copy = geometry;
|
|
#endif
|
|
|
|
typedef typename bg::point_type<Geometry>::type point_type;
|
|
|
|
// function
|
|
bg::for_each_point(geometry, translate_x_function<point_type>);
|
|
std::ostringstream out1;
|
|
out1 << bg::wkt(geometry);
|
|
|
|
BOOST_CHECK_MESSAGE(out1.str() == expected1,
|
|
"for_each_point: "
|
|
<< " expected " << expected1
|
|
<< " got " << bg::wkt(geometry));
|
|
|
|
// functor
|
|
bg::for_each_point(geometry, scale_y_functor<point_type>());
|
|
|
|
std::ostringstream out2;
|
|
out2 << bg::wkt(geometry);
|
|
|
|
BOOST_CHECK_MESSAGE(out2.str() == expected2,
|
|
"for_each_point: "
|
|
<< " expected " << expected2
|
|
<< " got " << bg::wkt(geometry));
|
|
|
|
#if !defined(BOOST_NO_CXX11_LAMBDAS)
|
|
// Lambda, both functions above together. Without / with capturing
|
|
|
|
geometry = copy;
|
|
bg::for_each_point
|
|
(
|
|
geometry,
|
|
[](point_type& p)
|
|
{
|
|
bg::set<0>(p, bg::get<0>(p) + 100);
|
|
}
|
|
|
|
);
|
|
|
|
typename bg::coordinate_type<point_type>::type scale = 100;
|
|
bg::for_each_point
|
|
(
|
|
geometry,
|
|
[&](point_type& p)
|
|
{
|
|
bg::set<1>(p, bg::get<1>(p) * scale);
|
|
}
|
|
|
|
);
|
|
|
|
std::ostringstream out3;
|
|
out3 << bg::wkt(geometry);
|
|
|
|
BOOST_CHECK_MESSAGE(out3.str() == expected2,
|
|
"for_each_point (lambda): "
|
|
<< " expected " << expected2
|
|
<< " got " << bg::wkt(geometry));
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
template <typename Geometry>
|
|
void test_per_point(std::string const& wkt
|
|
, int expected_sum_x
|
|
, std::string const& expected1
|
|
, std::string const& expected2
|
|
)
|
|
{
|
|
Geometry geometry;
|
|
bg::read_wkt(wkt, geometry);
|
|
test_per_point_const(geometry, expected_sum_x);
|
|
test_per_point_non_const(geometry, expected1, expected2);
|
|
}
|
|
|
|
|
|
|
|
template <typename Geometry>
|
|
void test_per_segment_const(Geometry const& geometry,
|
|
std::string const& expected_dsv,
|
|
double expected_length)
|
|
{
|
|
typedef typename bg::point_type<Geometry>::type point_type;
|
|
|
|
// function
|
|
g_out.str("");
|
|
g_out.clear();
|
|
bg::for_each_segment(geometry,
|
|
stream_segment<bg::model::referring_segment<point_type const> >);
|
|
std::string out = g_out.str();
|
|
boost::trim(out);
|
|
BOOST_CHECK_EQUAL(out, expected_dsv);
|
|
|
|
// functor
|
|
sum_segment_length<bg::model::referring_segment<point_type const> > functor;
|
|
functor = bg::for_each_segment(geometry, functor);
|
|
|
|
BOOST_CHECK_CLOSE(functor.sum, expected_length, 0.0001);
|
|
}
|
|
|
|
|
|
template <typename Geometry>
|
|
void test_per_segment_non_const(Geometry& geometry,
|
|
std::string const& expected_wkt)
|
|
{
|
|
typedef typename bg::point_type<Geometry>::type point_type;
|
|
|
|
// function
|
|
bg::for_each_segment(geometry,
|
|
modify_segment<bg::model::referring_segment<point_type> >);
|
|
|
|
std::ostringstream out;
|
|
out << bg::wkt(geometry);
|
|
|
|
BOOST_CHECK_MESSAGE(out.str() == expected_wkt,
|
|
"for_each_segment: "
|
|
<< " expected " << expected_wkt
|
|
<< " got " << bg::wkt(geometry));
|
|
|
|
// function is working here, functor works for all others,
|
|
// it will also work here.
|
|
}
|
|
|
|
|
|
template <typename Geometry>
|
|
void test_per_segment(std::string const& wkt
|
|
, std::string const& expected_dsv
|
|
, double expected_length
|
|
, std::string const& expected_wkt
|
|
)
|
|
{
|
|
Geometry geometry;
|
|
bg::read_wkt(wkt, geometry);
|
|
test_per_segment_const(geometry, expected_dsv, expected_length);
|
|
test_per_segment_non_const(geometry, expected_wkt);
|
|
}
|
|
|
|
|
|
|
|
template <typename Geometry>
|
|
void test_geometry(std::string const& wkt
|
|
, int expected_sum_x
|
|
, std::string const& expected1
|
|
, std::string const& expected2
|
|
, std::string const& expected_dsv
|
|
, double expected_length
|
|
, std::string const& expected_wkt
|
|
)
|
|
{
|
|
test_per_point<Geometry>(wkt, expected_sum_x, expected1, expected2);
|
|
test_per_segment<Geometry>(wkt, expected_dsv, expected_length, expected_wkt);
|
|
}
|
|
|
|
|
|
#endif
|