1 // Boost.Geometry (aka GGL, Generic Geometry Library)
2 // Unit Test
3
4 // Copyright (c) 2010-2012 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
11 #include <algorithm>
12 #include <iterator>
13 #include <sstream>
14 #include <string>
15
16 #include <geometry_test_common.hpp>
17
18 #include <boost/geometry/views/closeable_view.hpp>
19 #include <boost/geometry/views/reversible_view.hpp>
20
21 #include <boost/geometry/io/wkt/read.hpp>
22 #include <boost/geometry/io/dsv/write.hpp>
23 #include <boost/geometry/geometries/geometries.hpp>
24 #include <boost/geometry/geometries/point_xy.hpp>
25 #include <boost/geometry/geometries/adapted/boost_tuple.hpp>
26
BOOST_GEOMETRY_REGISTER_BOOST_TUPLE_CS(cs::cartesian)27 BOOST_GEOMETRY_REGISTER_BOOST_TUPLE_CS(cs::cartesian)
28
29
30 template <typename View>
31 void test_option(View const& view, std::string const& expected)
32 {
33
34 bool first = true;
35 std::ostringstream out;
36
37 typedef typename boost::range_iterator<View const>::type iterator;
38
39 iterator end = boost::end(view);
40 for (iterator it = boost::begin(view); it != end; ++it, first = false)
41 {
42 out << (first ? "" : " ") << bg::dsv(*it);
43 }
44 BOOST_CHECK_EQUAL(out.str(), expected);
45 }
46
47 template <bg::closure_selector Closure, bg::iterate_direction Direction, typename Range>
test_close_reverse(Range const & range,std::string const & expected)48 void test_close_reverse(Range const& range, std::string const& expected)
49 {
50 typedef typename bg::reversible_view<Range const, Direction>::type rview;
51 typedef typename bg::closeable_view<rview const, Closure>::type cview;
52
53 rview view1(range);
54 cview view2(view1);
55
56 test_option(view2, expected);
57 }
58
59
60 template <bg::iterate_direction Direction, bg::closure_selector Closure, typename Range>
test_reverse_close(Range const & range,std::string const & expected)61 void test_reverse_close(Range const& range, std::string const& expected)
62 {
63 typedef typename bg::closeable_view<Range const, Closure>::type cview;
64 typedef typename bg::reversible_view<cview const, Direction>::type rview;
65
66 cview view1(range);
67 rview view2(view1);
68 test_option(view2, expected);
69 }
70
71
72 template
73 <
74 bg::iterate_direction Direction1,
75 bg::iterate_direction Direction2,
76 typename Range
77 >
test_reverse_reverse(Range const & range,std::string const & expected)78 void test_reverse_reverse(Range const& range, std::string const& expected)
79 {
80 typedef typename bg::reversible_view<Range const, Direction1>::type rview1;
81 typedef typename bg::reversible_view<rview1 const, Direction2>::type rview2;
82
83 rview1 view1(range);
84 rview2 view2(view1);
85 test_option(view2, expected);
86 }
87
88 template
89 <
90 bg::closure_selector Closure1,
91 bg::closure_selector Closure2,
92 typename Range
93 >
test_close_close(Range const & range,std::string const & expected)94 void test_close_close(Range const& range, std::string const& expected)
95 {
96 typedef typename bg::closeable_view<Range const, Closure1>::type cview1;
97 typedef typename bg::closeable_view<cview1 const, Closure2>::type cview2;
98
99 cview1 view1(range);
100 cview2 view2(view1);
101 test_option(view2, expected);
102 }
103
104
105 template <typename Geometry>
test_geometry(std::string const & wkt,std::string const & expected_n,std::string const & expected_r,std::string const & closing,std::string const & rclosing)106 void test_geometry(std::string const& wkt,
107 std::string const& expected_n,
108 std::string const& expected_r,
109 std::string const& closing,
110 std::string const& rclosing
111 )
112 {
113 std::string expected;
114 Geometry geo;
115 bg::read_wkt(wkt, geo);
116
117 test_close_reverse<bg::closed, bg::iterate_forward>(geo, expected_n);
118 test_close_reverse<bg::open, bg::iterate_forward>(geo, expected_n + closing);
119 test_close_reverse<bg::closed, bg::iterate_reverse>(geo, expected_r);
120
121 // 13-12-2010, this case was problematic in MSVC
122 // SOLVED: caused by IMPLICIT constructor! It is now explicit and should be kept like that.
123 test_close_reverse<bg::open, bg::iterate_reverse>(geo, expected_r + rclosing);
124
125 test_reverse_close<bg::iterate_forward, bg::closed>(geo, expected_n);
126 test_reverse_close<bg::iterate_forward, bg::open>(geo, expected_n + closing);
127 test_reverse_close<bg::iterate_reverse, bg::closed>(geo, expected_r);
128
129 // first closed, then reversed:
130 expected = boost::trim_copy(closing + " " + expected_r);
131 test_reverse_close<bg::iterate_reverse, bg::open>(geo, expected);
132
133 test_reverse_reverse<bg::iterate_forward, bg::iterate_forward>(geo, expected_n);
134 test_reverse_reverse<bg::iterate_reverse, bg::iterate_reverse>(geo, expected_n);
135 test_reverse_reverse<bg::iterate_forward, bg::iterate_reverse>(geo, expected_r);
136 test_reverse_reverse<bg::iterate_reverse, bg::iterate_forward>(geo, expected_r);
137
138 test_close_close<bg::closed, bg::closed>(geo, expected_n);
139 test_close_close<bg::open, bg::closed>(geo, expected_n + closing);
140 test_close_close<bg::closed, bg::open>(geo, expected_n + closing);
141 test_close_close<bg::open, bg::open>(geo, expected_n + closing + closing);
142 }
143
144
145 template <typename P>
test_all()146 void test_all()
147 {
148 test_geometry<bg::model::ring<P> >(
149 "POLYGON((1 1,1 4,4 4,4 1))",
150 "(1, 1) (1, 4) (4, 4) (4, 1)",
151 "(4, 1) (4, 4) (1, 4) (1, 1)",
152 " (1, 1)", // closing
153 " (4, 1)" // rclosing
154 );
155 }
156
157
test_main(int,char * [])158 int test_main(int, char* [])
159 {
160 test_all<bg::model::d2::point_xy<double> >();
161 test_all<bg::model::point<int, 2, bg::cs::cartesian> >();
162 test_all<boost::tuple<double, double> >();
163
164 return 0;
165 }
166