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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 | //[point | |
11 | //` Declaration and use of the Boost.Geometry model::point, modelling the Point Concept | |
12 | ||
13 | #include <iostream> | |
14 | #include <boost/geometry.hpp> | |
15 | ||
16 | namespace bg = boost::geometry; | |
17 | ||
18 | int main() | |
19 | { | |
20 | bg::model::point<double, 2, bg::cs::cartesian> point1; | |
21 | bg::model::point<double, 3, bg::cs::cartesian> point2(1.0, 2.0, 3.0); /*< Construct, assigning three coordinates >*/ | |
22 | ||
23 | bg::set<0>(point1, 1.0); /*< Set a coordinate, generic. >*/ | |
24 | point1.set<1>(2.0); /*< Set a coordinate, class-specific ([*Note]: prefer `bg::set()`). >*/ | |
25 | ||
26 | double x = bg::get<0>(point1); /*< Get a coordinate, generic. >*/ | |
27 | double y = point1.get<1>(); /*< Get a coordinate, class-specific ([*Note]: prefer `bg::get()`). >*/ | |
28 | ||
29 | std::cout << x << ", " << y << std::endl; | |
30 | return 0; | |
31 | } | |
32 | ||
33 | //] | |
34 | ||
35 | ||
36 | //[point_output | |
37 | /*` | |
38 | Output: | |
39 | [pre | |
40 | 1, 2 | |
41 | ] | |
42 | */ | |
43 | //] |