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1 | // Boost.Geometry (aka GGL, Generic Geometry Library) |
2 | // QuickBook Example | |
3 | ||
4 | // Copyright (c) 2011-2012 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 | //[intersection_ls_ls_point | |
11 | //` Calculate the intersection of two linestrings | |
12 | ||
13 | #include <iostream> | |
14 | #include <deque> | |
15 | ||
16 | #include <boost/geometry.hpp> | |
17 | #include <boost/geometry/geometries/point_xy.hpp> | |
18 | #include <boost/geometry/geometries/register/linestring.hpp> | |
19 | ||
20 | #include <boost/foreach.hpp> | |
21 | ||
22 | BOOST_GEOMETRY_REGISTER_LINESTRING_TEMPLATED(std::vector) | |
23 | ||
24 | ||
25 | int main() | |
26 | { | |
27 | typedef boost::geometry::model::d2::point_xy<double> P; | |
28 | std::vector<P> line1, line2; | |
29 | boost::geometry::read_wkt("linestring(1 1,2 2,3 1)", line1); | |
30 | boost::geometry::read_wkt("linestring(1 2,2 1,3 2)", line2); | |
31 | ||
32 | std::deque<P> intersection_points; | |
33 | boost::geometry::intersection(line1, line2, intersection_points); | |
34 | ||
35 | BOOST_FOREACH(P const& p, intersection_points) | |
36 | { | |
37 | std::cout << " " << boost::geometry::wkt(p); | |
38 | } | |
39 | std::cout << std::endl; | |
40 | ||
41 | return 0; | |
42 | } | |
43 | ||
44 | //] | |
45 | ||
46 | ||
47 | //[intersection_ls_ls_point_output | |
48 | /*` | |
49 | Output: | |
50 | [pre | |
51 | POINT(1.5 1.5) POINT(2.5 1.5) | |
52 | ] | |
53 | */ | |
54 | //] |