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50 lines
1.6 KiB
50 lines
1.6 KiB
// Boost.Geometry (aka GGL, Generic Geometry Library) |
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// Copyright (c) 2007-2011 Barend Gehrels, Amsterdam, the Netherlands. |
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// Copyright (c) 2008-2011 Bruno Lalande, Paris, France. |
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// Copyright (c) 2009-2011 Mateusz Loskot, London, UK. |
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// Parts of Boost.Geometry are redesigned from Geodan's Geographic Library |
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// (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands. |
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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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#ifndef BOOST_GEOMETRY_STRATEGIES_DEFAULT_DISTANCE_RESULT_HPP |
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#define BOOST_GEOMETRY_STRATEGIES_DEFAULT_DISTANCE_RESULT_HPP |
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#include <boost/geometry/core/cs.hpp> |
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#include <boost/geometry/core/point_type.hpp> |
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#include <boost/geometry/strategies/distance.hpp> |
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namespace boost { namespace geometry |
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{ |
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/*! |
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\brief Meta-function defining return type of distance function |
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\ingroup distance |
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\note The strategy defines the return-type (so this situation is different |
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from length, where distance is sqr/sqrt, but length always squared) |
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*/ |
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template <typename Geometry1, typename Geometry2 = Geometry1> |
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struct default_distance_result |
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{ |
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typedef typename strategy::distance::services::return_type |
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< |
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typename strategy::distance::services::default_strategy |
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< |
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point_tag, |
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typename point_type<Geometry1>::type, |
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typename point_type<Geometry2>::type |
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>::type |
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>::type type; |
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}; |
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}} // namespace boost::geometry |
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#endif // BOOST_GEOMETRY_STRATEGIES_DEFAULT_DISTANCE_RESULT_HPP
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