projections/proj/putp3.hpp

0001 // Boost.Geometry - gis-projections (based on PROJ4)
0002
0003 // Copyright (c) 2008-2015 Barend Gehrels, Amsterdam, the Netherlands.
0004
0005 // This file was modified by Oracle on 2017, 2018, 2019.
0006 // Modifications copyright (c) 2017-2019, Oracle and/or its affiliates.
0007 // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle.
0008
0009 // Use, modification and distribution is subject to the Boost Software License,
0010 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
0011 // http://www.boost.org/LICENSE_1_0.txt)
0012
0013 // This file is converted from PROJ4, http://trac.osgeo.org/proj
0014 // PROJ4 is originally written by Gerald Evenden (then of the USGS)
0015 // PROJ4 is maintained by Frank Warmerdam
0016 // PROJ4 is converted to Boost.Geometry by Barend Gehrels
0017
0018 // Last updated version of proj: 5.0.0
0019
0020 // Original copyright notice:
0021
0022 // Permission is hereby granted, free of charge, to any person obtaining a
0023 // copy of this software and associated documentation files (the "Software"),
0024 // to deal in the Software without restriction, including without limitation
0025 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
0026 // and/or sell copies of the Software, and to permit persons to whom the
0027 // Software is furnished to do so, subject to the following conditions:
0028
0029 // The above copyright notice and this permission notice shall be included
0030 // in all copies or substantial portions of the Software.
0031
0032 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
0033 // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0034 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
0035 // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
0036 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
0037 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
0038 // DEALINGS IN THE SOFTWARE.
0039
0040 #ifndef BOOST_GEOMETRY_PROJECTIONS_PUTP3_HPP
0041 #define BOOST_GEOMETRY_PROJECTIONS_PUTP3_HPP
0042
0043 #include <boost/geometry/srs/projections/impl/base_static.hpp>
0044 #include <boost/geometry/srs/projections/impl/base_dynamic.hpp>
0045 #include <boost/geometry/srs/projections/impl/projects.hpp>
0046 #include <boost/geometry/srs/projections/impl/factory_entry.hpp>
0047
0048 namespace boost { namespace geometry
0049 {
0050
0051 namespace projections
0052 {
0053     #ifndef DOXYGEN_NO_DETAIL
0054     namespace detail { namespace putp3
0055     {
0056
0057             static const double C = 0.79788456;
0058             static const double RPISQ = 0.1013211836;
0059
0060             template <typename T>
0061             struct par_putp3
0062             {
0063                 T    A;
0064             };
0065
0066             template <typename T, typename Parameters>
0067             struct base_putp3_spheroid
0068             {
0069                 par_putp3<T> m_proj_parm;
0070
0071                 // FORWARD(s_forward)  spheroid
0072                 // Project coordinates from geographic (lon, lat) to cartesian (x, y)
0073                 inline void fwd(Parameters const& , T const& lp_lon, T const& lp_lat, T& xy_x, T& xy_y) const
0074                 {
0075                     xy_x = C * lp_lon * (1. - this->m_proj_parm.A * lp_lat * lp_lat);
0076                     xy_y = C * lp_lat;
0077                 }
0078
0079                 // INVERSE(s_inverse)  spheroid
0080                 // Project coordinates from cartesian (x, y) to geographic (lon, lat)
0081                 inline void inv(Parameters const& , T const& xy_x, T const& xy_y, T& lp_lon, T& lp_lat) const
0082                 {
0083                     lp_lat = xy_y / C;
0084                     lp_lon = xy_x / (C * (1. - this->m_proj_parm.A * lp_lat * lp_lat));
0085                 }
0086
0087                 static inline std::string get_name()
0088                 {
0089                     return "putp3_spheroid";
0090                 }
0091
0092             };
0093
0094
0095             // Putnins P3
0096             template <typename Parameters, typename T>
0097             inline void setup_putp3(Parameters& par, par_putp3<T>& proj_parm)
0098             {
0099                 proj_parm.A = 4. * RPISQ;
0100
0101                 par.es = 0.;
0102             }
0103
0104             // Putnins P3'
0105             template <typename Parameters, typename T>
0106             inline void setup_putp3p(Parameters& par, par_putp3<T>& proj_parm)
0107             {
0108                 proj_parm.A = 2. * RPISQ;
0109
0110                 par.es = 0.;
0111             }
0112
0113     }} // namespace detail::putp3
0114     #endif // doxygen
0115
0116     /*!
0117         \brief Putnins P3 projection
0118         \ingroup projections
0119         \tparam Geographic latlong point type
0120         \tparam Cartesian xy point type
0121         \tparam Parameters parameter type
0122         \par Projection characteristics
0123          - Pseudocylindrical
0124          - Spheroid
0125         \par Example
0126         \image html ex_putp3.gif
0127     */
0128     template <typename T, typename Parameters>
0129     struct putp3_spheroid : public detail::putp3::base_putp3_spheroid<T, Parameters>
0130     {
0131         template <typename Params>
0132         inline putp3_spheroid(Params const& , Parameters & par)
0133         {
0134             detail::putp3::setup_putp3(par, this->m_proj_parm);
0135         }
0136     };
0137
0138     /*!
0139         \brief Putnins P3' projection
0140         \ingroup projections
0141         \tparam Geographic latlong point type
0142         \tparam Cartesian xy point type
0143         \tparam Parameters parameter type
0144         \par Projection characteristics
0145          - Pseudocylindrical
0146          - Spheroid
0147         \par Example
0148         \image html ex_putp3p.gif
0149     */
0150     template <typename T, typename Parameters>
0151     struct putp3p_spheroid : public detail::putp3::base_putp3_spheroid<T, Parameters>
0152     {
0153         template <typename Params>
0154         inline putp3p_spheroid(Params const& , Parameters & par)
0155         {
0156             detail::putp3::setup_putp3p(par, this->m_proj_parm);
0157         }
0158     };
0159
0160     #ifndef DOXYGEN_NO_DETAIL
0161     namespace detail
0162     {
0163
0164         // Static projection
0165         BOOST_GEOMETRY_PROJECTIONS_DETAIL_STATIC_PROJECTION_FI(srs::spar::proj_putp3, putp3_spheroid)
0166         BOOST_GEOMETRY_PROJECTIONS_DETAIL_STATIC_PROJECTION_FI(srs::spar::proj_putp3p, putp3p_spheroid)
0167
0168         // Factory entry(s)
0169         BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_ENTRY_FI(putp3_entry, putp3_spheroid)
0170         BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_ENTRY_FI(putp3p_entry, putp3p_spheroid)
0171
0172         BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_INIT_BEGIN(putp3_init)
0173         {
0174             BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_INIT_ENTRY(putp3, putp3_entry)
0175             BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_INIT_ENTRY(putp3p, putp3p_entry)
0176         }
0177
0178     } // namespace detail
0179     #endif // doxygen
0180
0181 } // namespace projections
0182
0183 }} // namespace boost::geometry
0184
0185 #endif // BOOST_GEOMETRY_PROJECTIONS_PUTP3_HPP
0186