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 //[boost_array
11 //` Shows how to use a Boost.Array using Boost.Geometry's distance, set and assign_values algorithms
12
13 #include <iostream>
14
15 #include <boost/geometry.hpp>
16 #include <boost/geometry/geometries/linestring.hpp>
17 #include <boost/geometry/geometries/adapted/boost_array.hpp>
18
BOOST_GEOMETRY_REGISTER_BOOST_ARRAY_CS(cs::cartesian)19 BOOST_GEOMETRY_REGISTER_BOOST_ARRAY_CS(cs::cartesian)
20
21 int main()
22 {
23 boost::array<float, 2> a = { {1, 2} };
24 boost::array<double, 2> b = { {2, 3} };
25 std::cout << boost::geometry::distance(a, b) << std::endl;
26
27 boost::geometry::set<0>(a, 1.1f);
28 boost::geometry::set<1>(a, 2.2f);
29 std::cout << boost::geometry::distance(a, b) << std::endl;
30
31 boost::geometry::assign_values(b, 2.2, 3.3);
32 std::cout << boost::geometry::distance(a, b) << std::endl;
33
34 boost::geometry::model::linestring<boost::array<double, 2> > line;
35 line.push_back(b);
36
37 return 0;
38 }
39
40 //]
41
42 //[boost_array_output
43 /*`
44 Output:
45 [pre
46 1.41421
47 1.20416
48 1.55563
49 ]
50 */
51 //]
52