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Diffstat (limited to 'boost/geometry/srs/projections/proj/hammer.hpp')
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diff --git a/boost/geometry/srs/projections/proj/hammer.hpp b/boost/geometry/srs/projections/proj/hammer.hpp new file mode 100644 index 0000000000..58707a1499 --- /dev/null +++ b/boost/geometry/srs/projections/proj/hammer.hpp @@ -0,0 +1,201 @@ +#ifndef BOOST_GEOMETRY_PROJECTIONS_HAMMER_HPP +#define BOOST_GEOMETRY_PROJECTIONS_HAMMER_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/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 hammer {}; + +}} //namespace srs::par4 + +namespace projections +{ + #ifndef DOXYGEN_NO_DETAIL + namespace detail { namespace hammer + { + static const double EPS = 1.0e-10; + + template <typename T> + struct par_hammer + { + T w; + T m, rm; + }; + + // template class, using CRTP to implement forward/inverse + template <typename CalculationType, typename Parameters> + struct base_hammer_spheroid : public base_t_fi<base_hammer_spheroid<CalculationType, Parameters>, + CalculationType, Parameters> + { + + typedef CalculationType geographic_type; + typedef CalculationType cartesian_type; + + par_hammer<CalculationType> m_proj_parm; + + inline base_hammer_spheroid(const Parameters& par) + : base_t_fi<base_hammer_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 + { + CalculationType cosphi, d; + + d = sqrt(2./(1. + (cosphi = cos(lp_lat)) * cos(lp_lon *= this->m_proj_parm.w))); + xy_x = this->m_proj_parm.m * d * cosphi * sin(lp_lon); + xy_y = this->m_proj_parm.rm * d * sin(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 + { + CalculationType z; + + z = sqrt(1. - 0.25*this->m_proj_parm.w*this->m_proj_parm.w*xy_x*xy_x - 0.25*xy_y*xy_y); + if (geometry::math::abs(2.*z*z-1.) < EPS) { + lp_lon = HUGE_VAL; + lp_lat = HUGE_VAL; + BOOST_THROW_EXCEPTION( projection_exception(-14) ); + } else { + lp_lon = aatan2(this->m_proj_parm.w * xy_x * z,2. * z * z - 1)/this->m_proj_parm.w; + lp_lat = aasin(z * xy_y); + } + } + + static inline std::string get_name() + { + return "hammer_spheroid"; + } + + }; + + // Hammer & Eckert-Greifendorff + template <typename Parameters, typename T> + inline void setup_hammer(Parameters& par, par_hammer<T>& proj_parm) + { + if (pj_param(par.params, "tW").i) { + if ((proj_parm.w = fabs(pj_param(par.params, "dW").f)) <= 0.) + BOOST_THROW_EXCEPTION( projection_exception(-27) ); + } else + proj_parm.w = .5; + if (pj_param(par.params, "tM").i) { + if ((proj_parm.m = fabs(pj_param(par.params, "dM").f)) <= 0.) + BOOST_THROW_EXCEPTION( projection_exception(-27) ); + } else + proj_parm.m = 1.; + proj_parm.rm = 1. / proj_parm.m; + proj_parm.m /= proj_parm.w; + par.es = 0.; + } + + }} // namespace detail::hammer + #endif // doxygen + + /*! + \brief Hammer & Eckert-Greifendorff 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 Projection parameters + - W (real) + - M (real) + \par Example + \image html ex_hammer.gif + */ + template <typename CalculationType, typename Parameters> + struct hammer_spheroid : public detail::hammer::base_hammer_spheroid<CalculationType, Parameters> + { + inline hammer_spheroid(const Parameters& par) : detail::hammer::base_hammer_spheroid<CalculationType, Parameters>(par) + { + detail::hammer::setup_hammer(this->m_par, this->m_proj_parm); + } + }; + + #ifndef DOXYGEN_NO_DETAIL + namespace detail + { + + // Static projection + BOOST_GEOMETRY_PROJECTIONS_DETAIL_STATIC_PROJECTION(srs::par4::hammer, hammer_spheroid, hammer_spheroid) + + // Factory entry(s) + template <typename CalculationType, typename Parameters> + class hammer_entry : public detail::factory_entry<CalculationType, Parameters> + { + public : + virtual base_v<CalculationType, Parameters>* create_new(const Parameters& par) const + { + return new base_v_fi<hammer_spheroid<CalculationType, Parameters>, CalculationType, Parameters>(par); + } + }; + + template <typename CalculationType, typename Parameters> + inline void hammer_init(detail::base_factory<CalculationType, Parameters>& factory) + { + factory.add_to_factory("hammer", new hammer_entry<CalculationType, Parameters>); + } + + } // namespace detail + #endif // doxygen + +} // namespace projections + +}} // namespace boost::geometry + +#endif // BOOST_GEOMETRY_PROJECTIONS_HAMMER_HPP + |