1 // Boost.Geometry (aka GGL, Generic Geometry Library)
2 // Unit Test
3
4 // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
5 // Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
6 // Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
7
8 // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
9 // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
10
11 // Use, modification and distribution is subject to the Boost Software License,
12 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
13 // http://www.boost.org/LICENSE_1_0.txt)
14
15 #include <sstream>
16 #include <string>
17
18 #include <geometry_test_common.hpp>
19
20 #include <boost/geometry/iterators/ever_circling_iterator.hpp>
21
22 #include <boost/geometry/core/coordinate_type.hpp>
23 #include <boost/geometry/io/wkt/read.hpp>
24 #include <boost/geometry/geometries/geometries.hpp>
25 #include <boost/geometry/geometries/point_xy.hpp>
26
27 template <typename G>
test_geometry(std::string const & wkt)28 void test_geometry(std::string const& wkt)
29 {
30 G geo;
31 bg::read_wkt(wkt, geo);
32 typedef typename boost::range_iterator<G const>::type iterator_type;
33
34
35 // Run 3 times through the geometry
36 int n = boost::size(geo) * 3;
37
38 {
39 std::ostringstream out;
40 bg::ever_circling_iterator<iterator_type> it(boost::begin(geo), boost::end(geo));
41 for (int i = 0; i < n; ++i, ++it)
42 {
43 out << bg::get<0>(*it);
44 }
45 BOOST_CHECK_EQUAL(out.str(), "123451234512345");
46 }
47
48 {
49 std::ostringstream out;
50 // Start somewhere
51 bg::ever_circling_iterator<iterator_type> it(
52 boost::begin(geo), boost::end(geo), boost::begin(geo) + 1);
53 for (int i = 0; i < n; ++i, ++it)
54 {
55 out << bg::get<0>(*it);
56 }
57 BOOST_CHECK_EQUAL(out.str(), "234512345123451");
58 }
59
60 {
61 std::ostringstream out;
62
63 // Navigate to somewhere
64 bg::ever_circling_iterator<iterator_type> it(boost::begin(geo), boost::end(geo));
65 for (int i = 0; i < n; ++i, ++it)
66 {
67 const int m = boost::size(geo);
68 it.moveto(boost::begin(geo) + m - (i % m) - 1);
69 out << bg::get<0>(*it);
70 }
71 BOOST_CHECK_EQUAL(out.str(), "543215432154321");
72 }
73
74 // Check the range_iterator-one
75 {
76 std::ostringstream out;
77 bg::ever_circling_range_iterator<G> it(geo);
78 for (int i = 0; i < n; ++i, ++it)
79 {
80 out << bg::get<0>(*it);
81 }
82 BOOST_CHECK_EQUAL(out.str(), "123451234512345");
83 }
84 }
85
86 template <typename P>
test_all()87 void test_all()
88 {
89 test_geometry<bg::model::linestring<P> >("linestring(1 1,2 2,3 3,4 4,5 5)");
90 }
91
test_main(int,char * [])92 int test_main(int, char* [])
93 {
94 test_all<bg::model::d2::point_xy<double> >();
95
96 return 0;
97 }
98