// 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) //[assign_box_corners //` Shows how four point can be assigned from a 2D box #include <iostream> #include <boost/geometry.hpp> #include <boost/geometry/geometries/box.hpp> #include <boost/geometry/geometries/point_xy.hpp> using namespace boost::geometry; int main() { typedef model::d2::point_xy<double> point; typedef model::box<point> box; box b; assign_values(b, 2, 2, 5, 5); point ll, lr, ul, ur; assign_box_corners(b, ll, lr, ul, ur); std::cout << "box: " << dsv(b) << std::endl << std::endl; std::cout << dsv(ul) << " --- " << dsv(ur) << std::endl; for (int i = 0; i < 3; i++) { std::cout << " | |" << std::endl; } std::cout << dsv(ll) << " --- " << dsv(lr) << std::endl; return 0; } //] //[assign_box_corners_output /*` Output: [pre box: ((2, 2), (5, 5)) (2, 5) --- (5, 5) | | | | | | (2, 2) --- (5, 2) ] */ //]