// Boost.Geometry (aka GGL, Generic Geometry Library) // QuickBook Example // Copyright (c) 2014 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) //[buffer_join_miter //` Shows how the join_miter strategy can be used as a JoinStrategy to create sharp corners #include #include #include /*<-*/ #include "../examples_utils/create_svg_buffer.hpp" /*->*/ int main() { typedef boost::geometry::model::d2::point_xy point; typedef boost::geometry::model::polygon polygon; // Declare the join_miter strategy boost::geometry::strategy::buffer::join_miter join_strategy; // Declare other strategies boost::geometry::strategy::buffer::distance_symmetric distance_strategy(0.5); boost::geometry::strategy::buffer::end_flat end_strategy; boost::geometry::strategy::buffer::side_straight side_strategy; boost::geometry::strategy::buffer::point_circle point_strategy; // Declare/fill a multi polygon boost::geometry::model::multi_polygon mp; boost::geometry::read_wkt("MULTIPOLYGON(((5 5,7 8,9 5,5 5)),((8 7,8 10,11 10,11 7,8 7)))", mp); // Create the buffered geometry with sharp corners boost::geometry::model::multi_polygon result; boost::geometry::buffer(mp, result, distance_strategy, side_strategy, join_strategy, end_strategy, point_strategy); /*<-*/ create_svg_buffer("buffer_join_miter.svg", mp, result); /*->*/ return 0; } //]