/Src/Dependencies/Boost/libs/geometry/doc/src/examples/geometries/register/box_2d_4values.cpp
http://hadesmem.googlecode.com/ · C++ · 51 lines · 20 code · 12 blank · 19 comment · 0 complexity · 3314931294102cfd3a16785abfa01cc6 MD5 · raw file
- // 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)
- //[register_box_2d_4values
- //` Show the use of the macro BOOST_GEOMETRY_REGISTER_BOX_2D_4VALUES
- #include <iostream>
- #include <boost/geometry.hpp>
- #include <boost/geometry/geometries/register/point.hpp>
- #include <boost/geometry/geometries/register/box.hpp>
- struct my_point
- {
- int x, y;
- };
- struct my_box
- {
- int left, top, right, bottom;
- };
- BOOST_GEOMETRY_REGISTER_POINT_2D(my_point, int, cs::cartesian, x, y)
- // Register the box type, also notifying that it is based on "my_point"
- // (even if it does not contain it)
- BOOST_GEOMETRY_REGISTER_BOX_2D_4VALUES(my_box, my_point, left, top, right, bottom)
- int main()
- {
- my_box b = boost::geometry::make<my_box>(0, 0, 2, 2);
- std::cout << "Area: " << boost::geometry::area(b) << std::endl;
- return 0;
- }
- //]
- //[register_box_2d_4values_output
- /*`
- Output:
- [pre
- Area: 4
- ]
- */
- //]