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Diffstat (limited to 'boost/geometry/srs/projections/proj/vandg4.hpp')
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diff --git a/boost/geometry/srs/projections/proj/vandg4.hpp b/boost/geometry/srs/projections/proj/vandg4.hpp new file mode 100644 index 0000000000..0b85fedef4 --- /dev/null +++ b/boost/geometry/srs/projections/proj/vandg4.hpp @@ -0,0 +1,194 @@ +#ifndef BOOST_GEOMETRY_PROJECTIONS_VANDG4_HPP +#define BOOST_GEOMETRY_PROJECTIONS_VANDG4_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> + +namespace boost { namespace geometry +{ + +namespace srs { namespace par4 +{ + struct vandg4 {}; + +}} //namespace srs::par4 + +namespace projections +{ + #ifndef DOXYGEN_NO_DETAIL + namespace detail { namespace vandg4 + { + + static const double TOL = 1e-10; + //static const double TWORPI = 0.63661977236758134308; + + // template class, using CRTP to implement forward/inverse + template <typename CalculationType, typename Parameters> + struct base_vandg4_spheroid : public base_t_f<base_vandg4_spheroid<CalculationType, Parameters>, + CalculationType, Parameters> + { + + typedef CalculationType geographic_type; + typedef CalculationType cartesian_type; + + + inline base_vandg4_spheroid(const Parameters& par) + : base_t_f<base_vandg4_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 TWORPI = detail::TWO_D_PI<CalculationType>(); + + CalculationType x1, t, bt, ct, ft, bt2, ct2, dt, dt2; + + if (fabs(lp_lat) < TOL) { + xy_x = lp_lon; + xy_y = 0.; + } else if (fabs(lp_lon) < TOL || fabs(fabs(lp_lat) - HALFPI) < TOL) { + xy_x = 0.; + xy_y = lp_lat; + } else { + bt = fabs(TWORPI * lp_lat); + bt2 = bt * bt; + ct = 0.5 * (bt * (8. - bt * (2. + bt2)) - 5.) + / (bt2 * (bt - 1.)); + ct2 = ct * ct; + dt = TWORPI * lp_lon; + dt = dt + 1. / dt; + dt = sqrt(dt * dt - 4.); + if ((fabs(lp_lon) - HALFPI) < 0.) dt = -dt; + dt2 = dt * dt; + x1 = bt + ct; x1 *= x1; + t = bt + 3.*ct; + ft = x1 * (bt2 + ct2 * dt2 - 1.) + (1.-bt2) * ( + bt2 * (t * t + 4. * ct2) + + ct2 * (12. * bt * ct + 4. * ct2) ); + x1 = (dt*(x1 + ct2 - 1.) + 2.*sqrt(ft)) / + (4.* x1 + dt2); + xy_x = HALFPI * x1; + xy_y = HALFPI * sqrt(1. + dt * fabs(x1) - x1 * x1); + if (lp_lon < 0.) xy_x = -xy_x; + if (lp_lat < 0.) xy_y = -xy_y; + } + } + + static inline std::string get_name() + { + return "vandg4_spheroid"; + } + + }; + + // van der Grinten IV + template <typename Parameters> + inline void setup_vandg4(Parameters& par) + { + par.es = 0.; + } + + }} // namespace detail::vandg4 + #endif // doxygen + + /*! + \brief van der Grinten IV 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_vandg4.gif + */ + template <typename CalculationType, typename Parameters> + struct vandg4_spheroid : public detail::vandg4::base_vandg4_spheroid<CalculationType, Parameters> + { + inline vandg4_spheroid(const Parameters& par) : detail::vandg4::base_vandg4_spheroid<CalculationType, Parameters>(par) + { + detail::vandg4::setup_vandg4(this->m_par); + } + }; + + #ifndef DOXYGEN_NO_DETAIL + namespace detail + { + + // Static projection + BOOST_GEOMETRY_PROJECTIONS_DETAIL_STATIC_PROJECTION(srs::par4::vandg4, vandg4_spheroid, vandg4_spheroid) + + // Factory entry(s) + template <typename CalculationType, typename Parameters> + class vandg4_entry : public detail::factory_entry<CalculationType, Parameters> + { + public : + virtual base_v<CalculationType, Parameters>* create_new(const Parameters& par) const + { + return new base_v_f<vandg4_spheroid<CalculationType, Parameters>, CalculationType, Parameters>(par); + } + }; + + template <typename CalculationType, typename Parameters> + inline void vandg4_init(detail::base_factory<CalculationType, Parameters>& factory) + { + factory.add_to_factory("vandg4", new vandg4_entry<CalculationType, Parameters>); + } + + } // namespace detail + #endif // doxygen + +} // namespace projections + +}} // namespace boost::geometry + +#endif // BOOST_GEOMETRY_PROJECTIONS_VANDG4_HPP + |