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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 | //[expand | |
11 | //` Shows the usage of expand | |
12 | ||
13 | #include <iostream> | |
14 | #include <list> | |
15 | ||
16 | #include <boost/geometry.hpp> | |
17 | #include <boost/geometry/geometries/box.hpp> | |
18 | #include <boost/geometry/geometries/point_xy.hpp> | |
19 | ||
20 | int main() | |
21 | { | |
22 | typedef boost::geometry::model::d2::point_xy<short int> point_type; | |
23 | typedef boost::geometry::model::box<point_type> box_type; | |
24 | ||
25 | using boost::geometry::expand; | |
26 | ||
27 | box_type box = boost::geometry::make_inverse<box_type>(); /*< expand is usually preceded by a call to assign_inverse or make_inverse >*/ | |
28 | ||
29 | expand(box, point_type(0, 0)); | |
30 | expand(box, point_type(1, 2)); | |
31 | expand(box, point_type(5, 4)); | |
32 | expand(box, boost::geometry::make<box_type>(3, 3, 5, 5)); | |
33 | ||
34 | std::cout << boost::geometry::dsv(box) << std::endl; | |
35 | ||
36 | return 0; | |
37 | } | |
38 | ||
39 | //] | |
40 | ||
41 | //[expand_output | |
42 | /*` | |
43 | Output: | |
44 | [pre | |
45 | ((0, 0), (5, 5)) | |
46 | ] | |
47 | */ | |
48 | //] |