63 lines
1.5 KiB
C++
63 lines
1.5 KiB
C++
// Boost.Geometry (aka GGL, Generic Geometry Library)
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// Copyright (c) 2011-2012 Barend Gehrels, Amsterdam, the Netherlands.
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// Copyright (c) 2011-2012 Akira Takahashi
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// Use, modification and distribution is subject to the Boost Software License,
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// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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// Custom point / Boost.Fusion Example
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#include <iostream>
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#include <boost/fusion/include/adapt_struct_named.hpp>
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#include <boost/geometry/algorithms/distance.hpp>
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#include <boost/geometry/geometries/adapted/boost_fusion.hpp>
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#include <boost/geometry/strategies/strategies.hpp>
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#include <boost/geometry/io/dsv/write.hpp>
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BOOST_GEOMETRY_REGISTER_BOOST_FUSION_CS(cs::cartesian);
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// Sample point, having x/y
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struct my_2d
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{
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float x,y;
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};
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BOOST_FUSION_ADAPT_STRUCT(my_2d,
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(float, x)
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(float, y))
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int main()
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{
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my_2d p1 = {1, 5};
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my_2d p2 = {3, 4};
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std::cout << "Coordinate using direct access: "
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<< p1.x
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<< std::endl;
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std::cout << "Coordinate using Boost.Fusion: "
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<< boost::fusion::at_c<0>(p1)
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<< std::endl;
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std::cout << "Coordinate using Boost.Geometry: "
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<< boost::geometry::get<0>(p1)
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<< std::endl;
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std::cout << "Two points are: "
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<< boost::geometry::dsv(p1) << " "
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<< boost::geometry::dsv(p2) << std::endl;
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std::cout << "Distance: "
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<< boost::geometry::distance(p1, p2)
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<< std::endl;
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return 0;
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}
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