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- // Boost.Geometry (aka GGL, Generic Geometry Library)
- // Copyright (c) 2011-2012 Barend Gehrels, Amsterdam, the Netherlands.
- // Copyright (c) 2011-2012 Akira Takahashi
- // 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)
- //
- // Custom point / Boost.Fusion Example
- #include <iostream>
- #include <boost/fusion/include/adapt_struct_named.hpp>
- #include <boost/geometry/algorithms/distance.hpp>
- #include <boost/geometry/geometries/adapted/boost_fusion.hpp>
- #include <boost/geometry/strategies/strategies.hpp>
- #include <boost/geometry/io/dsv/write.hpp>
- BOOST_GEOMETRY_REGISTER_BOOST_FUSION_CS(cs::cartesian);
- // Sample point, having x/y
- struct my_2d
- {
- float x,y;
- };
- BOOST_FUSION_ADAPT_STRUCT(my_2d,
- (float, x)
- (float, y))
- int main()
- {
- my_2d p1 = {1, 5};
- my_2d p2 = {3, 4};
- std::cout << "Coordinate using direct access: "
- << p1.x
- << std::endl;
- std::cout << "Coordinate using Boost.Fusion: "
- << boost::fusion::at_c<0>(p1)
- << std::endl;
- std::cout << "Coordinate using Boost.Geometry: "
- << boost::geometry::get<0>(p1)
- << std::endl;
- std::cout << "Two points are: "
- << boost::geometry::dsv(p1) << " "
- << boost::geometry::dsv(p2) << std::endl;
- std::cout << "Distance: "
- << boost::geometry::distance(p1, p2)
- << std::endl;
- return 0;
- }
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