diff options
Diffstat (limited to 'boost/geometry/srs/projections/proj/vandg2.hpp')
| -rw-r--r-- | boost/geometry/srs/projections/proj/vandg2.hpp | 237 |
1 files changed, 237 insertions, 0 deletions
diff --git a/boost/geometry/srs/projections/proj/vandg2.hpp b/boost/geometry/srs/projections/proj/vandg2.hpp new file mode 100644 index 0000000000..650a64f432 --- /dev/null +++ b/boost/geometry/srs/projections/proj/vandg2.hpp @@ -0,0 +1,237 @@ +#ifndef BOOST_GEOMETRY_PROJECTIONS_VANDG2_HPP +#define BOOST_GEOMETRY_PROJECTIONS_VANDG2_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, 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: 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> + +namespace boost { namespace geometry +{ + +namespace srs { namespace par4 +{ + struct vandg2 {}; + struct vandg3 {}; + +}} //namespace srs::par4 + +namespace projections +{ + #ifndef DOXYGEN_NO_DETAIL + namespace detail { namespace vandg2 + { + + static const double TOL = 1e-10; + //static const double TWORPI = 0.63661977236758134308; + + struct par_vandg2 + { + int vdg3; + }; + + // template class, using CRTP to implement forward/inverse + template <typename CalculationType, typename Parameters> + struct base_vandg2_spheroid : public base_t_f<base_vandg2_spheroid<CalculationType, Parameters>, + CalculationType, Parameters> + { + + typedef CalculationType geographic_type; + typedef CalculationType cartesian_type; + + par_vandg2 m_proj_parm; + + inline base_vandg2_spheroid(const Parameters& par) + : base_t_f<base_vandg2_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 ONEPI = detail::ONEPI<CalculationType>(); + static const CalculationType TWORPI = detail::TWO_D_PI<CalculationType>(); + + CalculationType x1, at, bt, ct; + + bt = fabs(TWORPI * lp_lat); + if ((ct = 1. - bt * bt) < 0.) + ct = 0.; + else + ct = sqrt(ct); + if (fabs(lp_lon) < TOL) { + xy_x = 0.; + xy_y = ONEPI * (lp_lat < 0. ? -bt : bt) / (1. + ct); + } else { + at = 0.5 * fabs(ONEPI / lp_lon - lp_lon / ONEPI); + if (this->m_proj_parm.vdg3) { + x1 = bt / (1. + ct); + xy_x = ONEPI * (sqrt(at * at + 1. - x1 * x1) - at); + xy_y = ONEPI * x1; + } else { + x1 = (ct * sqrt(1. + at * at) - at * ct * ct) / + (1. + at * at * bt * bt); + xy_x = ONEPI * x1; + xy_y = ONEPI * sqrt(1. - x1 * (x1 + 2. * at) + TOL); + } + if ( lp_lon < 0.) xy_x = -xy_x; + if ( lp_lat < 0.) xy_y = -xy_y; + } + } + + static inline std::string get_name() + { + return "vandg2_spheroid"; + } + + }; + + // van der Grinten II + template <typename Parameters> + inline void setup_vandg2(Parameters& /*par*/, par_vandg2& proj_parm) + { + proj_parm.vdg3 = 0; + } + + // van der Grinten III + template <typename Parameters> + inline void setup_vandg3(Parameters& par, par_vandg2& proj_parm) + { + proj_parm.vdg3 = 1; + par.es = 0.; + } + + }} // namespace detail::vandg2 + #endif // doxygen + + /*! + \brief van der Grinten II 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_vandg2.gif + */ + template <typename CalculationType, typename Parameters> + struct vandg2_spheroid : public detail::vandg2::base_vandg2_spheroid<CalculationType, Parameters> + { + inline vandg2_spheroid(const Parameters& par) : detail::vandg2::base_vandg2_spheroid<CalculationType, Parameters>(par) + { + detail::vandg2::setup_vandg2(this->m_par, this->m_proj_parm); + } + }; + + /*! + \brief van der Grinten III 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_vandg3.gif + */ + template <typename CalculationType, typename Parameters> + struct vandg3_spheroid : public detail::vandg2::base_vandg2_spheroid<CalculationType, Parameters> + { + inline vandg3_spheroid(const Parameters& par) : detail::vandg2::base_vandg2_spheroid<CalculationType, Parameters>(par) + { + detail::vandg2::setup_vandg3(this->m_par, this->m_proj_parm); + } + }; + + #ifndef DOXYGEN_NO_DETAIL + namespace detail + { + + // Static projection + BOOST_GEOMETRY_PROJECTIONS_DETAIL_STATIC_PROJECTION(srs::par4::vandg2, vandg2_spheroid, vandg2_spheroid) + BOOST_GEOMETRY_PROJECTIONS_DETAIL_STATIC_PROJECTION(srs::par4::vandg3, vandg3_spheroid, vandg3_spheroid) + + // Factory entry(s) + template <typename CalculationType, typename Parameters> + class vandg2_entry : public detail::factory_entry<CalculationType, Parameters> + { + public : + virtual base_v<CalculationType, Parameters>* create_new(const Parameters& par) const + { + return new base_v_f<vandg2_spheroid<CalculationType, Parameters>, CalculationType, Parameters>(par); + } + }; + + template <typename CalculationType, typename Parameters> + class vandg3_entry : public detail::factory_entry<CalculationType, Parameters> + { + public : + virtual base_v<CalculationType, Parameters>* create_new(const Parameters& par) const + { + return new base_v_f<vandg3_spheroid<CalculationType, Parameters>, CalculationType, Parameters>(par); + } + }; + + template <typename CalculationType, typename Parameters> + inline void vandg2_init(detail::base_factory<CalculationType, Parameters>& factory) + { + factory.add_to_factory("vandg2", new vandg2_entry<CalculationType, Parameters>); + factory.add_to_factory("vandg3", new vandg3_entry<CalculationType, Parameters>); + } + + } // namespace detail + #endif // doxygen + +} // namespace projections + +}} // namespace boost::geometry + +#endif // BOOST_GEOMETRY_PROJECTIONS_VANDG2_HPP + |