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// 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.
// Modifications copyright (c) 2017-2018, 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_WAG2_HPP
#define BOOST_GEOMETRY_PROJECTIONS_WAG2_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>
#include <boost/geometry/srs/projections/impl/aasincos.hpp>
namespace boost { namespace geometry
{
namespace projections
{
#ifndef DOXYGEN_NO_DETAIL
namespace detail { namespace wag2
{
static const double C_x = 0.92483;
static const double C_y = 1.38725;
static const double C_p1 = 0.88022;
static const double C_p2 = 0.88550;
// template class, using CRTP to implement forward/inverse
template <typename T, typename Parameters>
struct base_wag2_spheroid
: public base_t_fi<base_wag2_spheroid<T, Parameters>, T, Parameters>
{
inline base_wag2_spheroid(const Parameters& par)
: base_t_fi<base_wag2_spheroid<T, Parameters>, T, Parameters>(*this, par)
{}
// FORWARD(s_forward) spheroid
// Project coordinates from geographic (lon, lat) to cartesian (x, y)
inline void fwd(T const& lp_lon, T lp_lat, T& xy_x, T& xy_y) const
{
lp_lat = aasin(C_p1 * sin(C_p2 * lp_lat));
xy_x = C_x * lp_lon * cos(lp_lat);
xy_y = C_y * lp_lat;
}
// INVERSE(s_inverse) spheroid
// Project coordinates from cartesian (x, y) to geographic (lon, lat)
inline void inv(T const& xy_x, T const& xy_y, T& lp_lon, T& lp_lat) const
{
lp_lat = xy_y / C_y;
lp_lon = xy_x / (C_x * cos(lp_lat));
lp_lat = aasin(sin(lp_lat) / C_p1) / C_p2;
}
static inline std::string get_name()
{
return "wag2_spheroid";
}
};
// Wagner II
template <typename Parameters>
inline void setup_wag2(Parameters& par)
{
par.es = 0.;
}
}} // namespace detail::wag2
#endif // doxygen
/*!
\brief Wagner II projection
\ingroup projections
\tparam Geographic latlong point type
\tparam Cartesian xy point type
\tparam Parameters parameter type
\par Projection characteristics
- Pseudocylindrical
- Spheroid
\par Example
\image html ex_wag2.gif
*/
template <typename T, typename Parameters>
struct wag2_spheroid : public detail::wag2::base_wag2_spheroid<T, Parameters>
{
template <typename Params>
inline wag2_spheroid(Params const& , Parameters const& par)
: detail::wag2::base_wag2_spheroid<T, Parameters>(par)
{
detail::wag2::setup_wag2(this->m_par);
}
};
#ifndef DOXYGEN_NO_DETAIL
namespace detail
{
// Static projection
BOOST_GEOMETRY_PROJECTIONS_DETAIL_STATIC_PROJECTION(srs::spar::proj_wag2, wag2_spheroid, wag2_spheroid)
// Factory entry(s)
BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_ENTRY_FI(wag2_entry, wag2_spheroid)
BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_INIT_BEGIN(wag2_init)
{
BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_INIT_ENTRY(wag2, wag2_entry)
}
} // namespace detail
#endif // doxygen
} // namespace projections
}} // namespace boost::geometry
#endif // BOOST_GEOMETRY_PROJECTIONS_WAG2_HPP
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