/Src/Dependencies/Boost/libs/geometry/doc/src/examples/algorithms/make_with_range.cpp

 1// Boost.Geometry (aka GGL, Generic Geometry Library)
 2// QuickBook Example
 3
 4// Copyright (c) 2011 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//[make_with_range
11//` Using make to construct a linestring with two different range types
12
13#include <iostream>
14
15#include <boost/geometry.hpp>
16#include <boost/geometry/geometries/linestring.hpp>
17#include <boost/geometry/geometries/point_xy.hpp>
18#include <boost/geometry/geometries/adapted/c_array.hpp>
19
20BOOST_GEOMETRY_REGISTER_C_ARRAY_CS(cs::cartesian) /*< Necessary to register a C array like {1,2} as a point >*/
21
22int main()
23{
24    using boost::geometry::make;
25    using boost::geometry::detail::make::make_points;
26
27    typedef boost::geometry::model::d2::point_xy<double> point;
28    typedef boost::geometry::model::linestring<point> linestring;
29
30    double coordinates[][2] = {{1,2}, {3,4}, {5, 6}}; /*< Initialize with C array points >*/
31    linestring ls = make_points<linestring>(coordinates);
32    std::cout << boost::geometry::dsv(ls) << std::endl;
33
34    point points[3] = { make<point>(9,8), make<point>(7,6), make<point>(5,4) }; /*< Construct array with points, using make which should work for any point type >*/
35    std::cout << boost::geometry::dsv(make_points<linestring>(points)) << std::endl; /*< Construct linestring with point-array and output it as Delimiter Separated Values >*/
36
37    return 0;
38}
39
40//]
41
42
43//[make_with_range_output
44/*`
45Output:
46[pre
47((1, 2), (3, 4), (5, 6))
48((9, 8), (7, 6), (5, 4))
49]
50*/
51//]