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Added box-to-box conversion

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[SVN r75686]
This commit is contained in:
Barend Gehrels
2011-11-27 11:06:47 +00:00
parent 838d092eb7
commit 2eadb6247a
2 changed files with 92 additions and 0 deletions
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12
include/boost/geometry/algorithms/convert.hpp
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@@ -29,6 +29,7 @@
#include <boost/geometry/algorithms/detail/assign_box_corners.hpp>
#include <boost/geometry/algorithms/detail/assign_indexed_point.hpp>
#include <boost/geometry/algorithms/detail/convert_point_to_point.hpp>
#include <boost/geometry/algorithms/detail/convert_box_to_box.hpp>
#include <boost/geometry/views/closeable_view.hpp>
#include <boost/geometry/views/reversible_view.hpp>
@@ -252,6 +253,17 @@ struct convert<false, point_tag, point_tag, DimensionCount, Geometry1, Geometry2
: detail::conversion::point_to_point<Geometry1, Geometry2, 0, DimensionCount>
{};
template
<
std::size_t DimensionCount,
typename Box1, typename Box2
>
struct convert<false, box_tag, box_tag, DimensionCount, Box1, Box2>
: detail::conversion::box_to_box<Box1, Box2, 0, DimensionCount>
{};
template <std::size_t DimensionCount, typename Segment, typename LineString>
struct convert<false, segment_tag, linestring_tag, DimensionCount, Segment, LineString>
: detail::conversion::segment_to_range<Segment, LineString>

80
include/boost/geometry/algorithms/detail/convert_box_to_box.hpp Normal file
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@@ -0,0 +1,80 @@
// Boost.Geometry (aka GGL, Generic Geometry Library)
// Copyright (c) 2007-2011 Barend Gehrels, Amsterdam, the Netherlands.
// Copyright (c) 2008-2011 Bruno Lalande, Paris, France.
// Copyright (c) 2009-2011 Mateusz Loskot, London, UK.
// Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
// (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
// Use, modification and distribution is subject to 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_ALGORITHMS_DETAIL_CONVERT_BOX_TO_BOX_HPP
#define BOOST_GEOMETRY_ALGORITHMS_DETAIL_CONVERT_BOX_TO_BOX_HPP
#include <cstddef>
#include <boost/numeric/conversion/cast.hpp>
#include <boost/geometry/core/access.hpp>
#include <boost/geometry/core/coordinate_dimension.hpp>
#include <boost/geometry/core/coordinate_type.hpp>
namespace boost { namespace geometry
{
#ifndef DOXYGEN_NO_DETAIL
namespace detail { namespace conversion
{
template
<
typename Source,
typename Destination,
std::size_t Dimension,
std::size_t DimensionCount
>
struct box_to_box
{
static inline void apply(Source const& source, Destination& destination)
{
typedef typename coordinate_type<Destination>::type coordinate_type;
geometry::set<Dimension, min_corner>(destination,
boost::numeric_cast<coordinate_type>(
geometry::get<Dimension, min_corner>(source)));
geometry::set<Dimension, max_corner>(destination,
boost::numeric_cast<coordinate_type>(
geometry::get<Dimension, max_corner>(source)));
box_to_box<Source, Destination, Dimension + 1, DimensionCount>::apply(
source, destination);
}
};
template <typename Source, typename Destination, std::size_t DimensionCount>
struct box_to_box<Source, Destination, DimensionCount, DimensionCount>
{
static inline void apply(Source const& , Destination& )
{}
};
template <typename Source, typename Destination>
inline void convert_box_to_box(Source const& source, Destination& destination)
{
box_to_box<Source, Destination, 0, dimension<Destination>::value>::apply(
source, destination);
}
}} // namespace detail::conversion
#endif // DOXYGEN_NO_DETAIL
}} // namespace boost::geometry
#endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_CONVERT_BOX_TO_BOX_HPP