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// Boost.Geometry (aka GGL, Generic Geometry Library)
// Unit Test
// Copyright (c) 2014, Oracle and/or its affiliates.
// Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
// Licensed under the Boost Software License version 1.0.
// http://www.boost.org/users/license.html
#include <iostream>
#ifndef BOOST_TEST_MODULE
#define BOOST_TEST_MODULE test_distance_linear_linear
#endif
#include <boost/test/included/unit_test.hpp>
#include "test_distance_common.hpp"
typedef bg::model::point<double,2,bg::cs::cartesian> point_type;
typedef bg::model::segment<point_type> segment_type;
typedef bg::model::linestring<point_type> linestring_type;
typedef bg::model::multi_linestring<linestring_type> multi_linestring_type;
namespace services = bg::strategy::distance::services;
typedef bg::default_distance_result<point_type>::type return_type;
typedef bg::strategy::distance::projected_point<> point_segment_strategy;
//===========================================================================
template <typename Strategy>
void test_distance_segment_segment(Strategy const& strategy)
{
#ifdef BOOST_GEOMETRY_TEST_DEBUG
std::cout << std::endl;
std::cout << "segment/segment distance tests" << std::endl;
#endif
typedef test_distance_of_geometries<segment_type, segment_type> tester;
tester::apply("segment(0 0,10 0)",
"segment(4 2,4 0.5)",
return_type(0.5), return_type(0.25), strategy);
tester::apply("segment(0 0,10 0)",
"segment(4 2,4 -0.5)",
return_type(0), return_type(0), strategy);
tester::apply("segment(0 0,10 0)",
"segment(4 2,0 0)",
return_type(0), return_type(0), strategy);
tester::apply("segment(0 0,10 0)",
"segment(-2 3,1 2)",
return_type(2), return_type(4), strategy);
}
//===========================================================================
template <typename Strategy>
void test_distance_segment_linestring(Strategy const& strategy)
{
#ifdef BOOST_GEOMETRY_TEST_DEBUG
std::cout << std::endl;
std::cout << "segment/linestring distance tests" << std::endl;
#endif
typedef test_distance_of_geometries<segment_type, linestring_type> tester;
tester::apply("segment(-1 -1,-2 -2)",
"linestring(2 1,1 2,4 0)",
sqrt(12.5), 12.5, strategy);
tester::apply("segment(1 1,2 2)",
"linestring(2 1,1 2,4 0)",
0, 0, strategy);
}
//===========================================================================
template <typename Strategy>
void test_distance_linestring_linestring(Strategy const& strategy)
{
#ifdef BOOST_GEOMETRY_TEST_DEBUG
std::cout << std::endl;
std::cout << "linestring/linestring distance tests" << std::endl;
#endif
typedef test_distance_of_geometries
<
linestring_type, linestring_type
> tester;
// It is not obvious that linestrings with only one point are valid
tester::apply("linestring(1 1)", "linestring(2 1)",
1, 1, strategy);
tester::apply("linestring(1 1,3 1)", "linestring(2 1)",
0, 0, strategy);
tester::apply("linestring(1 1)", "linestring(0 0,-2 0,2 -2,2 0)",
sqrt(2.0), 2, strategy);
tester::apply("linestring(1 1,1 1)", "linestring(2 1,2 1)",
1, 1, strategy);
tester::apply("linestring(1 1,1 1,1 1)", "linestring(2 1,2 1,2 1,2 1)",
1, 1, strategy);
tester::apply("linestring(1 1,3 1)", "linestring(2 1,2 1)",
0, 0, strategy);
tester::apply("linestring(1 1,1 1)", "linestring(0 0,-2 0,2 -2,2 0)",
sqrt(2.0), 2, strategy);
tester::apply("linestring(1 1,3 1)", "linestring(2 1, 4 1)",
0, 0, strategy);
tester::apply("linestring(1 1,2 2,3 3)", "linestring(2 1,1 2,4 0)",
0, 0, strategy);
tester::apply("linestring(1 1,2 2,3 3)", "linestring(1 0,2 -1,4 0)",
1, 1, strategy);
tester::apply("linestring(1 1,2 2,3 3)",
"linestring(1 -10,2 0,2.1 -10,4 0)",
sqrt(2.0), 2, strategy);
tester::apply("linestring(1 1,2 2,3 3)",
"linestring(1 -10,2 1.9,2.1 -10,4 0)",
sqrt(0.005), 0.005, strategy);
tester::apply("linestring(1 1,1 2)", "linestring(0 0,-2 0,2 -2,2 0)",
sqrt(2.0), 2, strategy);
}
//===========================================================================
template <typename Strategy>
void test_distance_segment_multilinestring(Strategy const& strategy)
{
#ifdef BOOST_GEOMETRY_TEST_DEBUG
std::cout << std::endl;
std::cout << "segment/multilinestring distance tests" << std::endl;
#endif
typedef test_distance_of_geometries
<
segment_type, multi_linestring_type
> tester;
tester::apply("segment(-1 -1,-2 -2)",
"multilinestring((2 1,1 2),(4 0,4 10))",
sqrt(12.5), 12.5, strategy);
tester::apply("segment(1 1,2 2)",
"multilinestring((2 1,1 2),(4 0,4 10))",
0, 0, strategy);
}
//===========================================================================
template <typename Strategy>
void test_distance_linestring_multilinestring(Strategy const& strategy)
{
#ifdef BOOST_GEOMETRY_TEST_DEBUG
std::cout << std::endl;
std::cout << "linestring/multilinestring distance tests" << std::endl;
#endif
typedef test_distance_of_geometries
<
linestring_type, multi_linestring_type
> tester;
tester::apply("linestring(1 1,2 2,3 3)",
"multilinestring((2 1,1 2,4 0),(1 -10,2 1.9,2.1 -10,4 0))",
0, 0, strategy, true);
tester::apply("linestring(1 1,2 2,3 3)",
"multilinestring((1 -10,2 0,2.1 -10,4 0),(1 -10,2 1.9,2.1 -10,4 0))",
sqrt(0.005), 0.005, strategy, true);
}
//===========================================================================
template <typename Strategy>
void test_distance_multilinestring_multilinestring(Strategy const& strategy)
{
#ifdef BOOST_GEOMETRY_TEST_DEBUG
std::cout << std::endl;
std::cout << "multilinestring/multilinestring distance tests" << std::endl;
#endif
typedef test_distance_of_geometries
<
multi_linestring_type, multi_linestring_type
> tester;
tester::apply("multilinestring((0 0,0 1,1 1),(10 0,11 1,12 2))",
"multilinestring((0.5 0.5,0.75 0.75),(11 0,11 7))",
0, 0, strategy);
tester::apply("multilinestring((0 0,0 1,1 1),(10 0,11 1,12 2))",
"multilinestring((0.5 0.5,0.75 0.75),(11 0,11 0.9))",
sqrt(0.005), 0.005, strategy);
tester::apply("multilinestring((0 0,0 1,1 1),(10 0,11 1,12 2))",
"multilinestring((0.5 0.5,0.75 0.75),(11.1 0,11.1 0.9))",
sqrt(0.02), 0.02, strategy);
}
//===========================================================================
template <typename Point, typename Strategy>
void test_more_empty_input_linear_linear(Strategy const& strategy)
{
#ifdef BOOST_GEOMETRY_TEST_DEBUG
std::cout << std::endl;
std::cout << "testing on empty inputs... " << std::flush;
#endif
bg::model::linestring<Point> line_empty;
bg::model::multi_linestring<bg::model::linestring<Point> > multiline_empty;
bg::model::linestring<Point> line =
from_wkt<bg::model::linestring<Point> >("linestring(0 0,1 1)");
// 1st geometry is empty
test_empty_input(line_empty, line, strategy);
test_empty_input(multiline_empty, line, strategy);
// 2nd geometry is empty
test_empty_input(line, line_empty, strategy);
test_empty_input(line, multiline_empty, strategy);
// both geometries are empty
test_empty_input(line_empty, line_empty, strategy);
test_empty_input(line_empty, multiline_empty, strategy);
test_empty_input(multiline_empty, multiline_empty, strategy);
#ifdef BOOST_GEOMETRY_TEST_DEBUG
std::cout << "done!" << std::endl;
#endif
}
//===========================================================================
BOOST_AUTO_TEST_CASE( test_all_segment_segment )
{
test_distance_segment_segment(point_segment_strategy());
}
BOOST_AUTO_TEST_CASE( test_all_segment_linestring )
{
test_distance_segment_linestring(point_segment_strategy());
}
BOOST_AUTO_TEST_CASE( test_all_linestring_linestring )
{
test_distance_linestring_linestring(point_segment_strategy());
}
BOOST_AUTO_TEST_CASE( test_all_segment_multilinestring )
{
test_distance_segment_multilinestring(point_segment_strategy());
}
BOOST_AUTO_TEST_CASE( test_all_linestring_multilinestring )
{
test_distance_linestring_multilinestring(point_segment_strategy());
}
BOOST_AUTO_TEST_CASE( test_all_multilinestring_multilinestring )
{
test_distance_multilinestring_multilinestring(point_segment_strategy());
}
BOOST_AUTO_TEST_CASE( test_all_empty_input_linear_linear )
{
test_more_empty_input_linear_linear<point_type>(point_segment_strategy());
}
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