// 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) //[envelope //` Shows how to calculate the bounding box of a polygon #include <iostream> #include <boost/geometry.hpp> #include <boost/geometry/geometries/box.hpp> #include <boost/geometry/geometries/point_xy.hpp> #include <boost/geometry/geometries/polygon.hpp> /*<-*/ #include "create_svg_two.hpp" /*->*/ int main() { typedef boost::geometry::model::d2::point_xy<double> point; boost::geometry::model::polygon<point> polygon; boost::geometry::read_wkt( "POLYGON((2 1.3,2.4 1.7,2.8 1.8,3.4 1.2,3.7 1.6,3.4 2,4.1 3,5.3 2.6,5.4 1.2,4.9 0.8,2.9 0.7,2 1.3)" "(4.0 2.0, 4.2 1.4, 4.8 1.9, 4.4 2.2, 4.0 2.0))", polygon); boost::geometry::model::box<point> box; boost::geometry::envelope(polygon, box); std::cout << "envelope:" << boost::geometry::dsv(box) << std::endl; /*<-*/ create_svg("envelope.svg", polygon, box); /*->*/ return 0; } //] //[envelope_output /*` Output: [pre envelope:((2, 0.7), (5.4, 3)) [$img/algorithms/envelope.png] ] */ //]