/usr/include/boost/geometry/core
Edit: /usr/include/boost/geometry/core/cs.hpp (7931B)
// Boost.Geometry (aka GGL, Generic Geometry Library)
// Copyright (c) 2007-2014 Barend Gehrels, Amsterdam, the Netherlands.
// Copyright (c) 2008-2014 Bruno Lalande, Paris, France.
// Copyright (c) 2009-2014 Mateusz Loskot, London, UK.
// This file was modified by Oracle on 2014, 2018.
// Modifications copyright (c) 2014-2018, 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
// 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_CORE_CS_HPP
#define BOOST_GEOMETRY_CORE_CS_HPP
#include
#include
#include
#include
namespace boost { namespace geometry
{
/*!
\brief Unit of plane angle: Degrees
\details Tag defining the unit of plane angle for spherical coordinate systems.
This tag specifies that coordinates are defined in degrees (-180 .. 180).
It has to be specified for some coordinate systems.
\qbk{[include reference/core/degree_radian.qbk]}
*/
struct degree {};
/*!
\brief Unit of plane angle: Radians
\details Tag defining the unit of plane angle for spherical coordinate systems.
This tag specifies that coordinates are defined in radians (-PI .. PI).
It has to be specified for some coordinate systems.
\qbk{[include reference/core/degree_radian.qbk]}
*/
struct radian {};
#ifndef DOXYGEN_NO_DETAIL
namespace core_detail
{
template
struct define_angular_units
{
BOOST_MPL_ASSERT_MSG
((false),
COORDINATE_SYSTEM_UNITS_MUST_BE_DEGREES_OR_RADIANS,
(types));
};
template <>
struct define_angular_units
{
typedef geometry::degree units;
};
template <>
struct define_angular_units
{
typedef geometry::radian units;
};
} // namespace core_detail
#endif // DOXYGEN_NO_DETAIL
namespace cs
{
/*!
\brief Cartesian coordinate system
\details Defines the Cartesian or rectangular coordinate system
where points are defined in 2 or 3 (or more)
dimensions and usually (but not always) known as x,y,z
\see http://en.wikipedia.org/wiki/Cartesian_coordinate_system
\ingroup cs
*/
struct cartesian {};
/*!
\brief Geographic coordinate system, in degree or in radian
\details Defines the geographic coordinate system where points
are defined in two angles and usually
known as lat,long or lo,la or phi,lambda
\see http://en.wikipedia.org/wiki/Geographic_coordinate_system
\ingroup cs
\note might be moved to extensions/gis/geographic
*/
template
struct geographic
: core_detail::define_angular_units
{};
/*!
\brief Spherical (polar) coordinate system, in degree or in radian
\details Defines the spherical coordinate system where points are
defined in two angles
and an optional radius usually known as r, theta, phi
\par Coordinates:
- coordinate 0:
0 <= phi < 2pi is the angle between the positive x-axis and the
line from the origin to the P projected onto the xy-plane.
- coordinate 1:
0 <= theta <= pi is the angle between the positive z-axis and the
line formed between the origin and P.
- coordinate 2 (if specified):
r >= 0 is the distance from the origin to a given point P.
\see http://en.wikipedia.org/wiki/Spherical_coordinates
\ingroup cs
*/
template
struct spherical
: core_detail::define_angular_units
{};
/*!
\brief Spherical equatorial coordinate system, in degree or in radian
\details This one resembles the geographic coordinate system, and has latitude
up from zero at the equator, to 90 at the pole
(opposite to the spherical(polar) coordinate system).
Used in astronomy and in GIS (but there is also the geographic)
\see http://en.wikipedia.org/wiki/Spherical_coordinates
\ingroup cs
*/
template
struct spherical_equatorial
: core_detail::define_angular_units
{};
/*!
\brief Polar coordinate system
\details Defines the polar coordinate system "in which each point
on a plane is determined by an angle and a distance"
\see http://en.wikipedia.org/wiki/Polar_coordinates
\ingroup cs
*/
template
struct polar
: core_detail::define_angular_units
{};
/*!
\brief Undefined coordinate system
\ingroup cs
*/
struct undefined {};
} // namespace cs
namespace traits
{
/*!
\brief Traits class defining coordinate system tag, bound to coordinate system
\ingroup traits
\tparam CoordinateSystem coordinate system
*/
template
struct cs_tag
{
};
#ifndef DOXYGEN_NO_TRAITS_SPECIALIZATIONS
template
struct cs_tag >
{
typedef geographic_tag type;
};
template
struct cs_tag >
{
typedef spherical_polar_tag type;
};
template
struct cs_tag >
{
typedef spherical_equatorial_tag type;
};
template<>
struct cs_tag
{
typedef cartesian_tag type;
};
template <>
struct cs_tag
{
typedef cs_undefined_tag type;
};
#endif // DOXYGEN_NO_TRAITS_SPECIALIZATIONS
} // namespace traits
/*!
\brief Meta-function returning coordinate system tag (cs family) of any geometry
\tparam Geometry \tparam_geometry
\ingroup core
*/
template
struct cs_tag
{
typedef typename traits::cs_tag
<
typename geometry::coordinate_system::type
>::type type;
};
namespace traits
{
// cartesian or undefined
template
struct cs_angular_units
{
typedef geometry::radian type;
};
#ifndef DOXYGEN_NO_TRAITS_SPECIALIZATIONS
template
struct cs_angular_units >
{
typedef DegreeOrRadian type;
};
template
struct cs_angular_units >
{
typedef DegreeOrRadian type;
};
template
struct cs_angular_units >
{
typedef DegreeOrRadian type;
};
#endif // DOXYGEN_NO_TRAITS_SPECIALIZATIONS
} // namespace traits
#ifndef DOXYGEN_NO_DETAIL
namespace detail
{
template
struct cs_angular_units
{
typedef typename traits::cs_angular_units
<
typename geometry::coordinate_system::type
>::type type;
};
template
struct cs_tag_to_coordinate_system
{
BOOST_MPL_ASSERT_MSG((false),
NOT_IMPLEMENTED_FOR_THIS_COORDINATE_SYSTEM,
(types));
};
template
struct cs_tag_to_coordinate_system
{
typedef cs::undefined type;
};
template
struct cs_tag_to_coordinate_system
{
typedef cs::cartesian type;
};
template
struct cs_tag_to_coordinate_system
{
typedef cs::spherical_equatorial type;
};
template
struct cs_tag_to_coordinate_system
{
typedef cs::spherical type;
};
template
struct cs_tag_to_coordinate_system
{
typedef cs::geographic type;
};
} // namespace detail
#endif // DOXYGEN_NO_DETAIL
}} // namespace boost::geometry
#endif // BOOST_GEOMETRY_CORE_CS_HPP