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Diffstat (limited to 'boost/geometry/srs/projections/proj/merc.hpp')
| -rw-r--r-- | boost/geometry/srs/projections/proj/merc.hpp | 267 |
1 files changed, 267 insertions, 0 deletions
diff --git a/boost/geometry/srs/projections/proj/merc.hpp b/boost/geometry/srs/projections/proj/merc.hpp new file mode 100644 index 0000000000..ac34aee33e --- /dev/null +++ b/boost/geometry/srs/projections/proj/merc.hpp @@ -0,0 +1,267 @@ +#ifndef BOOST_GEOMETRY_PROJECTIONS_MERC_HPP +#define BOOST_GEOMETRY_PROJECTIONS_MERC_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/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_msfn.hpp> +#include <boost/geometry/srs/projections/impl/pj_phi2.hpp> +#include <boost/geometry/srs/projections/impl/pj_tsfn.hpp> + +namespace boost { namespace geometry +{ + +namespace srs { namespace par4 +{ + struct merc {}; + +}} //namespace srs::par4 + +namespace projections +{ + #ifndef DOXYGEN_NO_DETAIL + namespace detail { namespace merc + { + + static const double EPS10 = 1.e-10; + + // template class, using CRTP to implement forward/inverse + template <typename CalculationType, typename Parameters> + struct base_merc_ellipsoid : public base_t_fi<base_merc_ellipsoid<CalculationType, Parameters>, + CalculationType, Parameters> + { + + typedef CalculationType geographic_type; + typedef CalculationType cartesian_type; + + + inline base_merc_ellipsoid(const Parameters& par) + : base_t_fi<base_merc_ellipsoid<CalculationType, Parameters>, + CalculationType, Parameters>(*this, par) {} + + // FORWARD(e_forward) 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 + { + static const CalculationType HALFPI = detail::HALFPI<CalculationType>(); + + if (fabs(fabs(lp_lat) - HALFPI) <= EPS10) + BOOST_THROW_EXCEPTION( projection_exception(-20) ); + xy_x = this->m_par.k0 * lp_lon; + xy_y = - this->m_par.k0 * log(pj_tsfn(lp_lat, sin(lp_lat), this->m_par.e)); + } + + // INVERSE(e_inverse) 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 + { + if ((lp_lat = pj_phi2(exp(- xy_y / this->m_par.k0), this->m_par.e)) == HUGE_VAL) + BOOST_THROW_EXCEPTION( projection_exception(-20) ); + lp_lon = xy_x / this->m_par.k0; + } + + static inline std::string get_name() + { + return "merc_ellipsoid"; + } + + }; + + // template class, using CRTP to implement forward/inverse + template <typename CalculationType, typename Parameters> + struct base_merc_spheroid : public base_t_fi<base_merc_spheroid<CalculationType, Parameters>, + CalculationType, Parameters> + { + + typedef CalculationType geographic_type; + typedef CalculationType cartesian_type; + + + inline base_merc_spheroid(const Parameters& par) + : base_t_fi<base_merc_spheroid<CalculationType, Parameters>, + CalculationType, Parameters>(*this, par) {} + + // FORWARD(s_forward) spheroid + // 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 + { + static const CalculationType HALFPI = detail::HALFPI<CalculationType>(); + static const CalculationType FORTPI = detail::FORTPI<CalculationType>(); + + if (fabs(fabs(lp_lat) - HALFPI) <= EPS10) + BOOST_THROW_EXCEPTION( projection_exception(-20) ); + xy_x = this->m_par.k0 * lp_lon; + xy_y = this->m_par.k0 * log(tan(FORTPI + .5 * lp_lat)); + } + + // INVERSE(s_inverse) spheroid + // 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 + { + static const CalculationType HALFPI = detail::HALFPI<CalculationType>(); + + lp_lat = HALFPI - 2. * atan(exp(-xy_y / this->m_par.k0)); + lp_lon = xy_x / this->m_par.k0; + } + + static inline std::string get_name() + { + return "merc_spheroid"; + } + + }; + + // Mercator + template <typename Parameters> + inline void setup_merc(Parameters& par) + { + typedef typename Parameters::type calc_t; + static const calc_t HALFPI = detail::HALFPI<calc_t>(); + + calc_t phits=0.0; + int is_phits; + + if( (is_phits = pj_param(par.params, "tlat_ts").i) ) { + phits = fabs(pj_param(par.params, "rlat_ts").f); + if (phits >= HALFPI) + BOOST_THROW_EXCEPTION( projection_exception(-24) ); + } + if (par.es) { /* ellipsoid */ + if (is_phits) + par.k0 = pj_msfn(sin(phits), cos(phits), par.es); + } else { /* sphere */ + if (is_phits) + par.k0 = cos(phits); + } + } + + }} // namespace detail::merc + #endif // doxygen + + /*! + \brief Mercator projection + \ingroup projections + \tparam Geographic latlong point type + \tparam Cartesian xy point type + \tparam Parameters parameter type + \par Projection characteristics + - Cylindrical + - Spheroid + - Ellipsoid + \par Projection parameters + - lat_ts: Latitude of true scale (degrees) + \par Example + \image html ex_merc.gif + */ + template <typename CalculationType, typename Parameters> + struct merc_ellipsoid : public detail::merc::base_merc_ellipsoid<CalculationType, Parameters> + { + inline merc_ellipsoid(const Parameters& par) : detail::merc::base_merc_ellipsoid<CalculationType, Parameters>(par) + { + detail::merc::setup_merc(this->m_par); + } + }; + + /*! + \brief Mercator projection + \ingroup projections + \tparam Geographic latlong point type + \tparam Cartesian xy point type + \tparam Parameters parameter type + \par Projection characteristics + - Cylindrical + - Spheroid + - Ellipsoid + \par Projection parameters + - lat_ts: Latitude of true scale (degrees) + \par Example + \image html ex_merc.gif + */ + template <typename CalculationType, typename Parameters> + struct merc_spheroid : public detail::merc::base_merc_spheroid<CalculationType, Parameters> + { + inline merc_spheroid(const Parameters& par) : detail::merc::base_merc_spheroid<CalculationType, Parameters>(par) + { + detail::merc::setup_merc(this->m_par); + } + }; + + #ifndef DOXYGEN_NO_DETAIL + namespace detail + { + + // Static projection + BOOST_GEOMETRY_PROJECTIONS_DETAIL_STATIC_PROJECTION(srs::par4::merc, merc_spheroid, merc_ellipsoid) + + // Factory entry(s) + template <typename CalculationType, typename Parameters> + class merc_entry : public detail::factory_entry<CalculationType, Parameters> + { + public : + virtual base_v<CalculationType, Parameters>* create_new(const Parameters& par) const + { + if (par.es) + return new base_v_fi<merc_ellipsoid<CalculationType, Parameters>, CalculationType, Parameters>(par); + else + return new base_v_fi<merc_spheroid<CalculationType, Parameters>, CalculationType, Parameters>(par); + } + }; + + template <typename CalculationType, typename Parameters> + inline void merc_init(detail::base_factory<CalculationType, Parameters>& factory) + { + factory.add_to_factory("merc", new merc_entry<CalculationType, Parameters>); + } + + } // namespace detail + #endif // doxygen + +} // namespace projections + +}} // namespace boost::geometry + +#endif // BOOST_GEOMETRY_PROJECTIONS_MERC_HPP + |