/usr/include/boost/geometry/geometries
Edit: /usr/include/boost/geometry/geometries/helper_geometry.hpp (2948B)
// Boost.Geometry (aka GGL, Generic Geometry Library)
// Copyright (c) 2015-2017, Oracle and/or its affiliates.
// Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
// Licensed under the Boost Software License version 1.0.
// http://www.boost.org/users/license.html
#ifndef BOOST_GEOMETRY_GEOMETRIES_HELPER_GEOMETRY_HPP
#define BOOST_GEOMETRY_GEOMETRIES_HELPER_GEOMETRY_HPP
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
namespace boost { namespace geometry
{
namespace detail { namespace helper_geometries
{
template
<
typename Point,
typename NewCoordinateType,
typename NewUnits,
typename CS_Tag = typename cs_tag::type
>
struct helper_point
{
typedef model::point
<
NewCoordinateType,
dimension::value,
typename cs_tag_to_coordinate_system::type
> type;
};
}} // detail::helper_geometries
namespace detail_dispatch
{
template
<
typename Geometry,
typename NewCoordinateType,
typename NewUnits,
typename Tag = typename tag::type>
struct helper_geometry : not_implemented
{};
template
struct helper_geometry
{
typedef typename detail::helper_geometries::helper_point
<
Point, NewCoordinateType, NewUnits
>::type type;
};
template
struct helper_geometry
{
typedef model::box
<
typename helper_geometry
<
typename point_type::type, NewCoordinateType, NewUnits
>::type
> type;
};
} // detail_dispatch
// Meta-function that provides a new helper geometry of the same kind as
// the input geometry and the same coordinate system type,
// but with a possibly different coordinate type and coordinate system units
template
<
typename Geometry,
typename NewCoordinateType = typename coordinate_type::type,
typename NewUnits = typename detail::cs_angular_units::type
>
struct helper_geometry
{
typedef typename detail_dispatch::helper_geometry
<
Geometry, NewCoordinateType, NewUnits
>::type type;
};
}} // namespace boost::geometry
#endif // BOOST_GEOMETRY_GEOMETRIES_HELPER_GEOMETRY_HPP