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+#ifndef BOOST_GEOMETRY_PROJECTIONS_EQDC_HPP
+#define BOOST_GEOMETRY_PROJECTIONS_EQDC_HPP
+
+// Boost.Geometry - extensions-gis-projections (based on PROJ4)
+// This file is automatically generated. DO NOT EDIT.
+
+// Copyright (c) 2008-2015 Barend Gehrels, Amsterdam, the Netherlands.
+
+// This file was modified by Oracle on 2017.
+// Modifications copyright (c) 2017, 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: 4.9.1
+
+// 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.
+
+#include <boost/geometry/util/math.hpp>
+#include <boost/math/special_functions/hypot.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/pj_mlfn.hpp>
+#include <boost/geometry/srs/projections/impl/pj_msfn.hpp>
+
+namespace boost { namespace geometry
+{
+
+namespace srs { namespace par4
+{
+ struct eqdc {};
+
+}} //namespace srs::par4
+
+namespace projections
+{
+ #ifndef DOXYGEN_NO_DETAIL
+ namespace detail { namespace eqdc
+ {
+
+ static const double EPS10 = 1.e-10;
+
+ template <typename T>
+ struct par_eqdc
+ {
+ T phi1;
+ T phi2;
+ T n;
+ T rho0;
+ T c;
+ T en[EN_SIZE];
+ int ellips;
+ };
+
+ // template class, using CRTP to implement forward/inverse
+ template <typename CalculationType, typename Parameters>
+ struct base_eqdc_ellipsoid : public base_t_fi<base_eqdc_ellipsoid<CalculationType, Parameters>,
+ CalculationType, Parameters>
+ {
+
+ typedef CalculationType geographic_type;
+ typedef CalculationType cartesian_type;
+
+ par_eqdc<CalculationType> m_proj_parm;
+
+ inline base_eqdc_ellipsoid(const Parameters& par)
+ : base_t_fi<base_eqdc_ellipsoid<CalculationType, Parameters>,
+ CalculationType, Parameters>(*this, par) {}
+
+ // FORWARD(e_forward) sphere & ellipsoid
+ // Project coordinates from geographic (lon, lat) to cartesian (x, y)
+ inline void fwd(geographic_type& lp_lon, geographic_type& lp_lat, cartesian_type& xy_x, cartesian_type& xy_y) const
+ {
+ CalculationType rho = 0.0;
+ rho = this->m_proj_parm.c - (this->m_proj_parm.ellips ? pj_mlfn(lp_lat, sin(lp_lat),
+ cos(lp_lat), this->m_proj_parm.en) : lp_lat);
+ xy_x = rho * sin( lp_lon *= this->m_proj_parm.n );
+ xy_y = this->m_proj_parm.rho0 - rho * cos(lp_lon);
+ }
+
+ // INVERSE(e_inverse) sphere & ellipsoid
+ // Project coordinates from cartesian (x, y) to geographic (lon, lat)
+ inline void inv(cartesian_type& xy_x, cartesian_type& xy_y, geographic_type& lp_lon, geographic_type& lp_lat) const
+ {
+ CalculationType rho = 0.0;
+ if ((rho = boost::math::hypot(xy_x, xy_y = this->m_proj_parm.rho0 - xy_y)) != 0.0 ) {
+ if (this->m_proj_parm.n < 0.) {
+ rho = -rho;
+ xy_x = -xy_x;
+ xy_y = -xy_y;
+ }
+ lp_lat = this->m_proj_parm.c - rho;
+ if (this->m_proj_parm.ellips)
+ lp_lat = pj_inv_mlfn(lp_lat, this->m_par.es, this->m_proj_parm.en);
+ lp_lon = atan2(xy_x, xy_y) / this->m_proj_parm.n;
+ } else {
+ lp_lon = 0.;
+ lp_lat = this->m_proj_parm.n > 0. ? geometry::math::half_pi<double>() : - geometry::math::half_pi<double>();
+ }
+ }
+
+ // SPECIAL(fac)
+ #ifdef SPECIAL_FACTORS_NOT_CONVERTED
+ inline void fac(Geographic lp, Factors &fac) const
+ {
+ CalculationType sinphi, cosphi;
+
+ sinphi = sin(lp_lat);
+ cosphi = cos(lp_lat);
+ this->m_fac.code |= IS_ANAL_HK;
+ this->m_fac.h = 1.;
+ this->m_fac.k = this->m_proj_parm.n * (this->m_proj_parm.c - (this->m_proj_parm.ellips ? pj_mlfn(lp_lat, sinphi,
+ cosphi, this->m_proj_parm.en) : lp_lat)) / pj_msfn(sinphi, cosphi, this->m_par.es);
+ }
+ #endif
+
+ static inline std::string get_name()
+ {
+ return "eqdc_ellipsoid";
+ }
+
+ };
+
+ // Equidistant Conic
+ template <typename Parameters, typename T>
+ inline void setup_eqdc(Parameters& par, par_eqdc<T>& proj_parm)
+ {
+ T cosphi, sinphi;
+ int secant;
+
+ proj_parm.phi1 = pj_param(par.params, "rlat_1").f;
+ proj_parm.phi2 = pj_param(par.params, "rlat_2").f;
+ if (fabs(proj_parm.phi1 + proj_parm.phi2) < EPS10)
+ BOOST_THROW_EXCEPTION( projection_exception(-21) );
+ if (!pj_enfn(par.es, proj_parm.en))
+ BOOST_THROW_EXCEPTION( projection_exception(0) );
+ proj_parm.n = sinphi = sin(proj_parm.phi1);
+ cosphi = cos(proj_parm.phi1);
+ secant = fabs(proj_parm.phi1 - proj_parm.phi2) >= EPS10;
+ if( (proj_parm.ellips = (par.es > 0.)) ) {
+ double ml1, m1;
+
+ m1 = pj_msfn(sinphi, cosphi, par.es);
+ ml1 = pj_mlfn(proj_parm.phi1, sinphi, cosphi, proj_parm.en);
+ if (secant) { /* secant cone */
+ sinphi = sin(proj_parm.phi2);
+ cosphi = cos(proj_parm.phi2);
+ proj_parm.n = (m1 - pj_msfn(sinphi, cosphi, par.es)) /
+ (pj_mlfn(proj_parm.phi2, sinphi, cosphi, proj_parm.en) - ml1);
+ }
+ proj_parm.c = ml1 + m1 / proj_parm.n;
+ proj_parm.rho0 = proj_parm.c - pj_mlfn(par.phi0, sin(par.phi0),
+ cos(par.phi0), proj_parm.en);
+ } else {
+ if (secant)
+ proj_parm.n = (cosphi - cos(proj_parm.phi2)) / (proj_parm.phi2 - proj_parm.phi1);
+ proj_parm.c = proj_parm.phi1 + cos(proj_parm.phi1) / proj_parm.n;
+ proj_parm.rho0 = proj_parm.c - par.phi0;
+ }
+ }
+
+ }} // namespace detail::eqdc
+ #endif // doxygen
+
+ /*!
+ \brief Equidistant Conic projection
+ \ingroup projections
+ \tparam Geographic latlong point type
+ \tparam Cartesian xy point type
+ \tparam Parameters parameter type
+ \par Projection characteristics
+ - Conic
+ - Spheroid
+ - Ellipsoid
+ \par Projection parameters
+ - lat_1: Latitude of first standard parallel (degrees)
+ - lat_2: Latitude of second standard parallel (degrees)
+ \par Example
+ \image html ex_eqdc.gif
+ */
+ template <typename CalculationType, typename Parameters>
+ struct eqdc_ellipsoid : public detail::eqdc::base_eqdc_ellipsoid<CalculationType, Parameters>
+ {
+ inline eqdc_ellipsoid(const Parameters& par) : detail::eqdc::base_eqdc_ellipsoid<CalculationType, Parameters>(par)
+ {
+ detail::eqdc::setup_eqdc(this->m_par, this->m_proj_parm);
+ }
+ };
+
+ #ifndef DOXYGEN_NO_DETAIL
+ namespace detail
+ {
+
+ // Static projection
+ BOOST_GEOMETRY_PROJECTIONS_DETAIL_STATIC_PROJECTION(srs::par4::eqdc, eqdc_ellipsoid, eqdc_ellipsoid)
+
+ // Factory entry(s)
+ template <typename CalculationType, typename Parameters>
+ class eqdc_entry : public detail::factory_entry<CalculationType, Parameters>
+ {
+ public :
+ virtual base_v<CalculationType, Parameters>* create_new(const Parameters& par) const
+ {
+ return new base_v_fi<eqdc_ellipsoid<CalculationType, Parameters>, CalculationType, Parameters>(par);
+ }
+ };
+
+ template <typename CalculationType, typename Parameters>
+ inline void eqdc_init(detail::base_factory<CalculationType, Parameters>& factory)
+ {
+ factory.add_to_factory("eqdc", new eqdc_entry<CalculationType, Parameters>);
+ }
+
+ } // namespace detail
+ #endif // doxygen
+
+} // namespace projections
+
+}} // namespace boost::geometry
+
+#endif // BOOST_GEOMETRY_PROJECTIONS_EQDC_HPP
+