112 lines
3.3 KiB
C++
112 lines
3.3 KiB
C++
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// Boost.Geometry (aka GGL, Generic Geometry Library)
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// Copyright (c) 2007-2015 Barend Gehrels, Amsterdam, the Netherlands.
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// Copyright (c) 2008-2015 Bruno Lalande, Paris, France.
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// Copyright (c) 2009-2015 Mateusz Loskot, London, UK.
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// This file was modified by Oracle on 2015-2020.
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// Modifications copyright (c) 2015-2020, Oracle and/or its affiliates.
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// Contributed and/or modified by Vissarion Fysikopoulos, on behalf of Oracle
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// Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
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// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
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// Distributed under the Boost Software License, Version 1.0.
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// (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_ALGORITHMS_DETAIL_ENVELOPE_SEGMENT_HPP
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#define BOOST_GEOMETRY_ALGORITHMS_DETAIL_ENVELOPE_SEGMENT_HPP
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#include <cstddef>
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#include <boost/geometry/core/tags.hpp>
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#include <boost/geometry/algorithms/detail/assign_indexed_point.hpp>
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#include <boost/geometry/algorithms/dispatch/envelope.hpp>
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// TEMP
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#include <boost/geometry/strategies/detail.hpp>
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namespace boost { namespace geometry
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{
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#ifndef DOXYGEN_NO_DETAIL
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namespace detail { namespace envelope
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{
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// TEMP
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template
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<
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typename Strategy,
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bool IsUmbrella = strategies::detail::is_umbrella_strategy<Strategy>::value
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>
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struct envelope_segment_call_strategy
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{
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template <typename Point, typename Segment, typename Box>
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static inline void apply(Point const& p1, Point const& p2,
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Segment const& segment, Box& mbr,
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Strategy const& strategy)
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{
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strategy.envelope(segment, mbr).apply(p1, p2, mbr);
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}
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};
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template <typename Strategy>
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struct envelope_segment_call_strategy<Strategy, false>
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{
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template <typename Point, typename Segment, typename Box>
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static inline void apply(Point const& p1, Point const& p2,
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Segment const&, Box& mbr,
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Strategy const& strategy)
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{
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strategy.apply(p1, p2, mbr);
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}
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};
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struct envelope_segment
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{
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template <typename Segment, typename Box, typename Strategy>
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static inline void apply(Segment const& segment, Box& mbr,
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Strategy const& strategy)
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{
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typename point_type<Segment>::type p[2];
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detail::assign_point_from_index<0>(segment, p[0]);
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detail::assign_point_from_index<1>(segment, p[1]);
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// TEMP - expand calls this and Umbrella strategies are not yet supported there
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envelope_segment_call_strategy<Strategy>::apply(p[0], p[1], segment, mbr, strategy);
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}
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};
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}} // namespace detail::envelope
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#endif // DOXYGEN_NO_DETAIL
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#ifndef DOXYGEN_NO_DISPATCH
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namespace dispatch
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{
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template <typename Segment>
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struct envelope<Segment, segment_tag>
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{
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template <typename Box, typename Strategy>
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static inline void apply(Segment const& segment,
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Box& mbr,
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Strategy const& strategy)
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{
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detail::envelope::envelope_segment
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/*<
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dimension<Segment>::value
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>*/::apply(segment, mbr, strategy);
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}
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};
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} // namespace dispatch
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#endif // DOXYGEN_NO_DISPATCH
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}} // namespace boost::geometry
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#endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_ENVELOPE_SEGMENT_HPP
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