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 //[register_box_templated
11 //` Show the use of the macro BOOST_GEOMETRY_REGISTER_BOX_TEMPLATED
12
13 #include <iostream>
14
15 #include <boost/geometry.hpp>
16 #include <boost/geometry/geometries/point_xy.hpp>
17 #include <boost/geometry/geometries/register/box.hpp>
18
19 template <typename P>
20 struct my_box
21 {
22 P ll, ur;
23 };
24
25 // Register the box type
BOOST_GEOMETRY_REGISTER_BOX_TEMPLATED(my_box,ll,ur)26 BOOST_GEOMETRY_REGISTER_BOX_TEMPLATED(my_box, ll, ur)
27
28 int main()
29 {
30 typedef my_box<boost::geometry::model::d2::point_xy<double> > box;
31 box b = boost::geometry::make<box>(0, 0, 2, 2);
32 std::cout << "Area: " << boost::geometry::area(b) << std::endl;
33 return 0;
34 }
35
36 //]
37
38
39 //[register_box_templated_output
40 /*`
41 Output:
42 [pre
43 Area: 4
44 ]
45 */
46 //]
47