| // Boost.Geometry (aka GGL, Generic Geometry Library) |
| // QuickBook Example |
| |
| // Copyright (c) 2014, Oracle and/or its affiliates |
| |
| // Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle |
| |
| // Licensed under the Boost Software License version 1.0. |
| // http://www.boost.org/users/license.html |
| |
| //[num_segments |
| //` Get the number of segments in a geometry |
| |
| #include <iostream> |
| |
| #include <boost/geometry.hpp> |
| #include <boost/geometry/geometries/point_xy.hpp> |
| |
| |
| int main() |
| { |
| boost::geometry::model::multi_polygon |
| < |
| boost::geometry::model::polygon |
| < |
| boost::geometry::model::d2::point_xy<double>, true, false // cw, open polygon |
| > |
| > mp; |
| boost::geometry::read_wkt("MULTIPOLYGON(((0 0,0 10,10 0),(1 1,8 1,1 8)),((10 10,10 20,20 10)))", mp); |
| std::cout << "Number of segments: " << boost::geometry::num_segments(mp) << std::endl; |
| return 0; |
| } |
| |
| //] |
| |
| |
| //[num_segments_output |
| /*` |
| Output: |
| [pre |
| Number of segments: 9 |
| ] |
| */ |
| //] |
