Chris@16: // Boost.Geometry (aka GGL, Generic Geometry Library)
Chris@16: 
Chris@101: // Copyright (c) 2007-2014 Barend Gehrels, Amsterdam, the Netherlands.
Chris@101: // Copyright (c) 2008-2014 Bruno Lalande, Paris, France.
Chris@101: // Copyright (c) 2009-2014 Mateusz Loskot, London, UK.
Chris@101: 
Chris@101: // This file was modified by Oracle on 2014.
Chris@101: // Modifications copyright (c) 2014, Oracle and/or its affiliates.
Chris@101: 
Chris@101: // Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
Chris@16: 
Chris@16: // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
Chris@16: // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
Chris@16: 
Chris@16: // Use, modification and distribution is subject to the Boost Software License,
Chris@16: // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: #ifndef BOOST_GEOMETRY_STRATEGIES_DISTANCE_HPP
Chris@16: #define BOOST_GEOMETRY_STRATEGIES_DISTANCE_HPP
Chris@16: 
Chris@16: 
Chris@16: #include <boost/mpl/assert.hpp>
Chris@16: 
Chris@16: #include <boost/geometry/core/cs.hpp>
Chris@16: #include <boost/geometry/strategies/tags.hpp>
Chris@16: 
Chris@16: 
Chris@16: namespace boost { namespace geometry
Chris@16: {
Chris@16: 
Chris@16: 
Chris@16: namespace strategy { namespace distance { namespace services
Chris@16: {
Chris@16: 
Chris@16: 
Chris@16: template <typename Strategy> struct tag {};
Chris@16: 
Chris@16: template <typename Strategy, typename P1, typename P2>
Chris@16: struct return_type
Chris@16: {
Chris@16:     BOOST_MPL_ASSERT_MSG
Chris@16:         (
Chris@16:             false, NOT_IMPLEMENTED_FOR_THIS_STRATEGY, (types<Strategy, P1, P2>)
Chris@16:         );
Chris@16: };
Chris@16: 
Chris@16: 
Chris@16: template <typename Strategy> struct comparable_type
Chris@16: {
Chris@16:     BOOST_MPL_ASSERT_MSG
Chris@16:         (
Chris@16:             false, NOT_IMPLEMENTED_FOR_THIS_STRATEGY, (types<Strategy>)
Chris@16:         );
Chris@16: };
Chris@16: 
Chris@16: template <typename Strategy> struct get_comparable
Chris@16: {
Chris@16:     BOOST_MPL_ASSERT_MSG
Chris@16:         (
Chris@16:             false, NOT_IMPLEMENTED_FOR_THIS_STRATEGY, (types<Strategy>)
Chris@16:         );
Chris@16: };
Chris@16: 
Chris@16: template <typename Strategy, typename P1, typename P2>
Chris@16: struct result_from_distance {};
Chris@16: 
Chris@16: 
Chris@16: 
Chris@16: 
Chris@16: // Default strategy
Chris@16: 
Chris@16: 
Chris@16: /*!
Chris@16:     \brief Traits class binding a default strategy for distance
Chris@16:         to one (or possibly two) coordinate system(s)
Chris@16:     \ingroup distance
Chris@101:     \tparam GeometryTag1 tag (point/segment/box) for which this strategy is the default
Chris@101:     \tparam GeometryTag2 tag (point/segment/box) for which this strategy is the default
Chris@16:     \tparam Point1 first point-type
Chris@16:     \tparam Point2 second point-type
Chris@16:     \tparam CsTag1 tag of coordinate system of first point type
Chris@16:     \tparam CsTag2 tag of coordinate system of second point type
Chris@16: */
Chris@16: template
Chris@16: <
Chris@101:     typename GeometryTag1,
Chris@101:     typename GeometryTag2,
Chris@16:     typename Point1,
Chris@16:     typename Point2 = Point1,
Chris@16:     typename CsTag1 = typename cs_tag<Point1>::type,
Chris@16:     typename CsTag2 = typename cs_tag<Point2>::type,
Chris@16:     typename UnderlyingStrategy = void
Chris@16: >
Chris@16: struct default_strategy
Chris@16: {
Chris@16:     BOOST_MPL_ASSERT_MSG
Chris@16:         (
Chris@16:             false, NOT_IMPLEMENTED_FOR_THIS_POINT_TYPE_COMBINATION
Chris@16:             , (types<Point1, Point2, CsTag1, CsTag2>)
Chris@16:         );
Chris@16: };
Chris@16: 
Chris@16: 
Chris@16: }}} // namespace strategy::distance::services
Chris@16: 
Chris@16: 
Chris@16: }} // namespace boost::geometry
Chris@16: 
Chris@16: #endif // BOOST_GEOMETRY_STRATEGIES_DISTANCE_HPP