| // Boost.Geometry (aka GGL, Generic Geometry Library) |
| // QuickBook Example |
| |
| // Copyright (c) 2011 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) |
| |
| //[unique |
| //` Shows how to make a so-called minimal set of a polygon by removing duplicate points |
| |
| #include <iostream> |
| |
| #include <boost/geometry.hpp> |
| #include <boost/geometry/geometries/polygon.hpp> |
| #include <boost/geometry/geometries/adapted/boost_tuple.hpp> |
| |
| BOOST_GEOMETRY_REGISTER_BOOST_TUPLE_CS(cs::cartesian) |
| |
| int main() |
| { |
| boost::geometry::model::polygon<boost::tuple<double, double> > poly; |
| boost::geometry::read_wkt("POLYGON((0 0,0 0,0 5,5 5,5 5,5 5,5 0,5 0,0 0,0 0,0 0,0 0))", poly); |
| boost::geometry::unique(poly); |
| std::cout << boost::geometry::wkt(poly) << std::endl; |
| |
| return 0; |
| } |
| |
| //] |
| |
| |
| //[unique_output |
| /*` |
| Output: |
| [pre |
| POLYGON((0 0,0 5,5 5,5 0,0 0)) |
| ] |
| */ |
| //] |
