]>
Commit | Line | Data |
---|---|---|
7c673cae FG |
1 | // Boost.Geometry (aka GGL, Generic Geometry Library) |
2 | // QuickBook Example | |
3 | ||
4 | // Copyright (c) 2014, Oracle and/or its affiliates | |
5 | ||
6 | // Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle | |
7 | ||
8 | // Licensed under the Boost Software License version 1.0. | |
9 | // http://www.boost.org/users/license.html | |
10 | ||
11 | //[is_simple | |
12 | //` Checks whether a geometry is simple | |
13 | ||
14 | #include <iostream> | |
15 | ||
16 | #include <boost/geometry.hpp> | |
17 | #include <boost/geometry/geometries/point_xy.hpp> | |
18 | #include <boost/geometry/geometries/linestring.hpp> | |
19 | #include <boost/geometry/geometries/multi_linestring.hpp> | |
20 | /*<-*/ #include "create_svg_one.hpp" /*->*/ | |
21 | ||
22 | int main() | |
23 | { | |
24 | typedef boost::geometry::model::d2::point_xy<double> point_type; | |
25 | typedef boost::geometry::model::linestring<point_type> linestring_type; | |
26 | typedef boost::geometry::model::multi_linestring<linestring_type> multi_linestring_type; | |
27 | ||
28 | multi_linestring_type multi_linestring; | |
29 | boost::geometry::read_wkt("MULTILINESTRING((0 0,0 10,10 10,10 0,0 0),(10 10,20 20))", multi_linestring); | |
30 | ||
31 | std::cout << "is simple? " | |
32 | << (boost::geometry::is_simple(multi_linestring) ? "yes" : "no") | |
33 | << std::endl; | |
34 | /*<-*/ create_svg("is_simple_example.svg", multi_linestring); /*->*/ | |
35 | return 0; | |
36 | } | |
37 | ||
38 | //] | |
39 | ||
40 | //[is_simple_output | |
41 | /*` | |
42 | Output: | |
43 | [pre | |
44 | is simple? no | |
45 | ||
46 | [$img/algorithms/is_simple_example.png] | |
47 | ||
48 | ] | |
49 | ||
50 | */ | |
51 | //] |