summaryrefslogtreecommitdiff
path: root/libs/geometry/doc/src/examples/geometries/adapted/boost_range/reversed.cpp
blob: a73343850566fb8065b622a91296efc759d56253 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
// Boost.Geometry (aka GGL, Generic Geometry Library)
// QuickBook Example

// Copyright (c) 2011-2012 Barend Gehrels, Amsterdam, the Netherlands.

// Use, modification and distribution is subject to the Boost Software License,
// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)

//[boost_range_reversed
//` Shows how to use a Boost.Geometry linestring, reversed by Boost.Range adaptor

#include <iostream>

#include <boost/geometry.hpp>
#include <boost/geometry/geometries/linestring.hpp>
#include <boost/geometry/geometries/point_xy.hpp>
#include <boost/geometry/geometries/adapted/boost_range/reversed.hpp>

int main()
{
    typedef boost::geometry::model::d2::point_xy<int> xy;
    boost::geometry::model::linestring<xy> line;
    line.push_back(xy(0, 0));
    line.push_back(xy(1, 1));
    
    std::cout 
        << boost::geometry::dsv(line | boost::adaptors::reversed) 
        << std::endl;

    return 0;
}

//]

//[boost_range_reversed_output
/*`
Output:
[pre
((1, 1), (0, 0))
]
*/
//]