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// Boost.Geometry (aka GGL, Generic Geometry Library)
// Copyright (c) 2007-2015 Barend Gehrels, Amsterdam, the Netherlands.
// Copyright (c) 2008-2015 Bruno Lalande, Paris, France.
// Copyright (c) 2009-2015 Mateusz Loskot, London, UK.
// Copyright (c) 2014-2015 Samuel Debionne, Grenoble, France.
// This file was modified by Oracle on 2015, 2016, 2017, 2018, 2019.
// Modifications copyright (c) 2015-2019, Oracle and/or its affiliates.
// Contributed and/or modified by Vissarion Fysikopoulos, on behalf of Oracle
// Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
// Distributed under 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)
#ifndef BOOST_GEOMETRY_STRATEGY_SPHERICAL_EXPAND_BOX_HPP
#define BOOST_GEOMETRY_STRATEGY_SPHERICAL_EXPAND_BOX_HPP
#include <algorithm>
#include <cstddef>
#include <boost/geometry/core/cs.hpp>
#include <boost/geometry/core/coordinate_dimension.hpp>
#include <boost/geometry/core/coordinate_system.hpp>
#include <boost/geometry/core/tags.hpp>
#include <boost/geometry/algorithms/convert.hpp>
#include <boost/geometry/algorithms/detail/convert_point_to_point.hpp>
#include <boost/geometry/algorithms/detail/normalize.hpp>
#include <boost/geometry/algorithms/detail/envelope/transform_units.hpp>
#include <boost/geometry/algorithms/detail/envelope/range_of_boxes.hpp>
#include <boost/geometry/algorithms/dispatch/envelope.hpp>
#include <boost/geometry/geometries/helper_geometry.hpp>
#include <boost/geometry/strategy/expand.hpp>
#include <boost/geometry/views/detail/indexed_point_view.hpp>
namespace boost { namespace geometry
{
#ifndef DOXYGEN_NO_DETAIL
namespace detail { namespace envelope
{
template
<
std::size_t Index,
std::size_t DimensionCount
>
struct envelope_indexed_box_on_spheroid
{
template <typename BoxIn, typename BoxOut>
static inline void apply(BoxIn const& box_in, BoxOut& mbr)
{
// transform() does not work with boxes of dimension higher
// than 2; to account for such boxes we transform the min/max
// points of the boxes using the indexed_point_view
detail::indexed_point_view<BoxIn const, Index> box_in_corner(box_in);
detail::indexed_point_view<BoxOut, Index> mbr_corner(mbr);
// first transform the units
transform_units(box_in_corner, mbr_corner);
// now transform the remaining coordinates
detail::conversion::point_to_point
<
detail::indexed_point_view<BoxIn const, Index>,
detail::indexed_point_view<BoxOut, Index>,
2,
DimensionCount
>::apply(box_in_corner, mbr_corner);
}
};
struct envelope_box_on_spheroid
{
template <typename BoxIn, typename BoxOut>
static inline void apply(BoxIn const& box_in, BoxOut& mbr)
{
// BoxIn can be non-mutable
typename helper_geometry<BoxIn>::type box_in_normalized;
geometry::convert(box_in, box_in_normalized);
if (! is_inverse_spheroidal_coordinates(box_in))
{
strategy::normalize::spherical_box::apply(box_in, box_in_normalized);
}
geometry::detail::envelope::envelope_indexed_box_on_spheroid
<
min_corner, dimension<BoxIn>::value
>::apply(box_in_normalized, mbr);
geometry::detail::envelope::envelope_indexed_box_on_spheroid
<
max_corner, dimension<BoxIn>::value
>::apply(box_in_normalized, mbr);
}
};
}} // namespace detail::envelope
#endif // DOXYGEN_NO_DETAIL
namespace strategy { namespace expand
{
#ifndef DOXYGEN_NO_DETAIL
namespace detail
{
struct box_on_spheroid
{
template <typename BoxOut, typename BoxIn>
static inline void apply(BoxOut& box_out, BoxIn const& box_in)
{
// normalize both boxes and convert box-in to be of type of box-out
BoxOut mbrs[2];
geometry::detail::envelope::envelope_box_on_spheroid::apply(box_in, mbrs[0]);
geometry::detail::envelope::envelope_box_on_spheroid::apply(box_out, mbrs[1]);
// compute the envelope of the two boxes
geometry::detail::envelope::envelope_range_of_boxes::apply(mbrs, box_out);
}
};
} // namespace detail
#endif // DOXYGEN_NO_DETAIL
struct spherical_box
: detail::box_on_spheroid
{};
#ifndef DOXYGEN_NO_STRATEGY_SPECIALIZATIONS
namespace services
{
template <typename CalculationType>
struct default_strategy<box_tag, spherical_equatorial_tag, CalculationType>
{
typedef spherical_box type;
};
template <typename CalculationType>
struct default_strategy<box_tag, spherical_polar_tag, CalculationType>
{
typedef spherical_box type;
};
template <typename CalculationType>
struct default_strategy<box_tag, geographic_tag, CalculationType>
{
typedef spherical_box type;
};
} // namespace services
#endif // DOXYGEN_NO_STRATEGY_SPECIALIZATIONS
}} // namespace strategy::expand
}} // namespace boost::geometry
#endif // BOOST_GEOMETRY_STRATEGY_SPHERICAL_EXPAND_BOX_HPP
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