Current File : //backups/router/usr/local/include/boost/geometry/srs/projections/proj/bacon.hpp
// Boost.Geometry - gis-projections (based on PROJ4)
// Copyright (c) 2008-2015 Barend Gehrels, Amsterdam, the Netherlands.
// This file was modified by Oracle on 2017, 2018, 2019.
// Modifications copyright (c) 2017-2019, Oracle and/or its affiliates.
// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle.
// 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)
// This file is converted from PROJ4, http://trac.osgeo.org/proj
// PROJ4 is originally written by Gerald Evenden (then of the USGS)
// PROJ4 is maintained by Frank Warmerdam
// PROJ4 is converted to Boost.Geometry by Barend Gehrels
// Last updated version of proj: 5.0.0
// Original copyright notice:
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
#ifndef BOOST_GEOMETRY_PROJECTIONS_BACON_HPP
#define BOOST_GEOMETRY_PROJECTIONS_BACON_HPP
#include <boost/geometry/util/math.hpp>
#include <boost/geometry/srs/projections/impl/base_static.hpp>
#include <boost/geometry/srs/projections/impl/base_dynamic.hpp>
#include <boost/geometry/srs/projections/impl/projects.hpp>
#include <boost/geometry/srs/projections/impl/factory_entry.hpp>
namespace boost { namespace geometry
{
namespace projections
{
#ifndef DOXYGEN_NO_DETAIL
namespace detail { namespace bacon
{
//static const double half_pi_sqr = 2.46740110027233965467;
static const double epsilon = 1e-10;
struct par_bacon
{
bool bacn;
bool ortl;
};
template <typename T, typename Parameters>
struct base_bacon_spheroid
{
par_bacon m_proj_parm;
// FORWARD(s_forward) spheroid
// Project coordinates from geographic (lon, lat) to cartesian (x, y)
inline void fwd(Parameters const& , T const& lp_lon, T const& lp_lat, T& xy_x, T& xy_y) const
{
static const T half_pi = detail::half_pi<T>();
static const T half_pi_sqr = detail::half_pi_sqr<T>();
T ax, f;
xy_y = this->m_proj_parm.bacn ? half_pi * sin(lp_lat) : lp_lat;
if ((ax = fabs(lp_lon)) >= epsilon) {
if (this->m_proj_parm.ortl && ax >= half_pi)
xy_x = sqrt(half_pi_sqr - lp_lat * lp_lat + epsilon) + ax - half_pi;
else {
f = 0.5 * (half_pi_sqr / ax + ax);
xy_x = ax - f + sqrt(f * f - xy_y * xy_y);
}
if (lp_lon < 0.) xy_x = - xy_x;
} else
xy_x = 0.;
}
static inline std::string get_name()
{
return "bacon_spheroid";
}
};
// Apian Globular I
template <typename Parameters>
inline void setup_apian(Parameters& par, par_bacon& proj_parm)
{
proj_parm.bacn = proj_parm.ortl = false;
par.es = 0.;
}
// Ortelius Oval
template <typename Parameters>
inline void setup_ortel(Parameters& par, par_bacon& proj_parm)
{
proj_parm.bacn = false;
proj_parm.ortl = true;
par.es = 0.;
}
// Bacon Globular
template <typename Parameters>
inline void setup_bacon(Parameters& par, par_bacon& proj_parm)
{
proj_parm.bacn = true;
proj_parm.ortl = false;
par.es = 0.;
}
}} // namespace detail::bacon
#endif // doxygen
/*!
\brief Apian Globular I projection
\ingroup projections
\tparam Geographic latlong point type
\tparam Cartesian xy point type
\tparam Parameters parameter type
\par Projection characteristics
- Miscellaneous
- Spheroid
- no inverse
\par Example
\image html ex_apian.gif
*/
template <typename T, typename Parameters>
struct apian_spheroid : public detail::bacon::base_bacon_spheroid<T, Parameters>
{
template <typename Params>
inline apian_spheroid(Params const& , Parameters & par)
{
detail::bacon::setup_apian(par, this->m_proj_parm);
}
};
/*!
\brief Ortelius Oval projection
\ingroup projections
\tparam Geographic latlong point type
\tparam Cartesian xy point type
\tparam Parameters parameter type
\par Projection characteristics
- Miscellaneous
- Spheroid
- no inverse
\par Example
\image html ex_ortel.gif
*/
template <typename T, typename Parameters>
struct ortel_spheroid : public detail::bacon::base_bacon_spheroid<T, Parameters>
{
template <typename Params>
inline ortel_spheroid(Params const& , Parameters & par)
{
detail::bacon::setup_ortel(par, this->m_proj_parm);
}
};
/*!
\brief Bacon Globular projection
\ingroup projections
\tparam Geographic latlong point type
\tparam Cartesian xy point type
\tparam Parameters parameter type
\par Projection characteristics
- Miscellaneous
- Spheroid
- no inverse
\par Example
\image html ex_bacon.gif
*/
template <typename T, typename Parameters>
struct bacon_spheroid : public detail::bacon::base_bacon_spheroid<T, Parameters>
{
template <typename Params>
inline bacon_spheroid(Params const& , Parameters & par)
{
detail::bacon::setup_bacon(par, this->m_proj_parm);
}
};
#ifndef DOXYGEN_NO_DETAIL
namespace detail
{
// Static projection
BOOST_GEOMETRY_PROJECTIONS_DETAIL_STATIC_PROJECTION_F(srs::spar::proj_apian, apian_spheroid)
BOOST_GEOMETRY_PROJECTIONS_DETAIL_STATIC_PROJECTION_F(srs::spar::proj_bacon, bacon_spheroid)
BOOST_GEOMETRY_PROJECTIONS_DETAIL_STATIC_PROJECTION_F(srs::spar::proj_ortel, ortel_spheroid)
// Factory entry(s)
BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_ENTRY_F(apian_entry, apian_spheroid)
BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_ENTRY_F(ortel_entry, ortel_spheroid)
BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_ENTRY_F(bacon_entry, bacon_spheroid)
BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_INIT_BEGIN(bacon_init)
{
BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_INIT_ENTRY(apian, apian_entry)
BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_INIT_ENTRY(ortel, ortel_entry)
BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_INIT_ENTRY(bacon, bacon_entry)
}
} // namespace detail
#endif // doxygen
} // namespace projections
}} // namespace boost::geometry
#endif // BOOST_GEOMETRY_PROJECTIONS_BACON_HPP
Mini Shell