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 #include <algorithm>
11 #include <iterator>
12 #include <sstream>
13 #include <string>
14
15 #include <geometry_test_common.hpp>
16
17 #include <boost/geometry/views/reversible_view.hpp>
18
19 #include <boost/geometry/io/wkt/wkt.hpp>
20 #include <boost/geometry/io/dsv/write.hpp>
21 #include <boost/geometry/geometries/geometries.hpp>
22 #include <boost/geometry/geometries/point_xy.hpp>
23 #include <boost/geometry/geometries/adapted/boost_tuple.hpp>
24
BOOST_GEOMETRY_REGISTER_BOOST_TUPLE_CS(cs::cartesian)25 BOOST_GEOMETRY_REGISTER_BOOST_TUPLE_CS(cs::cartesian)
26
27
28 template <bg::iterate_direction Direction, typename Range>
29 void test_forward_or_reverse(Range const& range, std::string const& expected)
30 {
31 typedef typename bg::reversible_view
32 <
33 Range const,
34 Direction
35 >::type view_type;
36
37 view_type view(range);
38
39 bool first = true;
40 std::ostringstream out;
41 for (typename boost::range_iterator<view_type const>::type
42 it = boost::begin(view);
43 it != boost::end(view);
44 ++it, first = false)
45 {
46 out << (first ? "" : " ") << bg::dsv(*it);
47 }
48 BOOST_CHECK_EQUAL(out.str(), expected);
49 }
50
51
52
53 template <typename Geometry>
test_geometry(std::string const & wkt,std::string const & expected_forward,std::string const & expected_reverse)54 void test_geometry(std::string const& wkt,
55 std::string const& expected_forward, std::string const& expected_reverse)
56 {
57 Geometry geo;
58 bg::read_wkt(wkt, geo);
59
60 test_forward_or_reverse<bg::iterate_forward>(geo, expected_forward);
61 test_forward_or_reverse<bg::iterate_reverse>(geo, expected_reverse);
62 }
63
64 template <typename P>
test_all()65 void test_all()
66 {
67 test_geometry<bg::model::linestring<P> >(
68 "linestring(1 1,2 2,3 3)",
69 "(1, 1) (2, 2) (3, 3)",
70 "(3, 3) (2, 2) (1, 1)");
71 }
72
73
test_main(int,char * [])74 int test_main(int, char* [])
75 {
76 test_all<bg::model::d2::point_xy<double> >();
77 test_all<bg::model::point<int, 2, bg::cs::cartesian> >();
78 test_all<boost::tuple<double, double> >();
79
80 return 0;
81 }
82