ceph/src/boost/boost/geometry/srs/projections/proj/urmfps.hpp

   1 // Boost.Geometry - gis-projections (based on PROJ4)
   2
   3 // Copyright (c) 2008-2015 Barend Gehrels, Amsterdam, the Netherlands.
   4
   5 // This file was modified by Oracle on 2017, 2018, 2019.
   6 // Modifications copyright (c) 2017-2019, Oracle and/or its affiliates.
   7 // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle.
   8
   9 // Use, modification and distribution is subject to the Boost Software License,
  10 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
  11 // http://www.boost.org/LICENSE_1_0.txt)
  12
  13 // This file is converted from PROJ4, http://trac.osgeo.org/proj
  14 // PROJ4 is originally written by Gerald Evenden (then of the USGS)
  15 // PROJ4 is maintained by Frank Warmerdam
  16 // PROJ4 is converted to Boost.Geometry by Barend Gehrels
  17
  18 // Last updated version of proj: 5.0.0
  19
  20 // Original copyright notice:
  21
  22 // Permission is hereby granted, free of charge, to any person obtaining a
  23 // copy of this software and associated documentation files (the "Software"),
  24 // to deal in the Software without restriction, including without limitation
  25 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
  26 // and/or sell copies of the Software, and to permit persons to whom the
  27 // Software is furnished to do so, subject to the following conditions:
  28
  29 // The above copyright notice and this permission notice shall be included
  30 // in all copies or substantial portions of the Software.
  31
  32 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  33 // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  34 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  35 // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  36 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  37 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  38 // DEALINGS IN THE SOFTWARE.
  39
  40 #ifndef BOOST_GEOMETRY_PROJECTIONS_URMFPS_HPP
  41 #define BOOST_GEOMETRY_PROJECTIONS_URMFPS_HPP
  42
  43 #include <boost/geometry/srs/projections/impl/aasincos.hpp>
  44 #include <boost/geometry/srs/projections/impl/base_static.hpp>
  45 #include <boost/geometry/srs/projections/impl/base_dynamic.hpp>
  46 #include <boost/geometry/srs/projections/impl/factory_entry.hpp>
  47 #include <boost/geometry/srs/projections/impl/pj_param.hpp>
  48 #include <boost/geometry/srs/projections/impl/projects.hpp>
  49
  50 namespace boost { namespace geometry
  51 {
  52
  53 namespace projections
  54 {
  55     #ifndef DOXYGEN_NO_DETAIL
  56     namespace detail { namespace urmfps
  57     {
  58
  59             static const double C_x = 0.8773826753;
  60             static const double Cy = 1.139753528477;
  61
  62             template <typename T>
  63             struct par_urmfps
  64             {
  65                 T    n, C_y;
  66             };
  67
  68             template <typename T, typename Parameters>
  69             struct base_urmfps_spheroid
  70             {
  71                 par_urmfps<T> m_proj_parm;
  72
  73                 // FORWARD(s_forward)  sphere
  74                 // Project coordinates from geographic (lon, lat) to cartesian (x, y)
  75                 inline void fwd(Parameters const& , T const& lp_lon, T lp_lat, T& xy_x, T& xy_y) const
  76                 {
  77                     lp_lat = aasin(this->m_proj_parm.n * sin(lp_lat));
  78                     xy_x = C_x * lp_lon * cos(lp_lat);
  79                     xy_y = this->m_proj_parm.C_y * lp_lat;
  80                 }
  81
  82                 // INVERSE(s_inverse)  sphere
  83                 // Project coordinates from cartesian (x, y) to geographic (lon, lat)
  84                 inline void inv(Parameters const& , T const& xy_x, T xy_y, T& lp_lon, T& lp_lat) const
  85                 {
  86                     xy_y /= this->m_proj_parm.C_y;
  87                     lp_lat = aasin(sin(xy_y) / this->m_proj_parm.n);
  88                     lp_lon = xy_x / (C_x * cos(xy_y));
  89                 }
  90
  91                 static inline std::string get_name()
  92                 {
  93                     return "urmfps_spheroid";
  94                 }
  95
  96             };
  97
  98             template <typename Parameters, typename T>
  99             inline void setup(Parameters& par, par_urmfps<T>& proj_parm)
 100             {
 101                 proj_parm.C_y = Cy / proj_parm.n;
 102                 par.es = 0.;
 103             }
 104
 105
 106             // Urmaev Flat-Polar Sinusoidal
 107             template <typename Params, typename Parameters, typename T>
 108             inline void setup_urmfps(Params const& params, Parameters& par, par_urmfps<T>& proj_parm)
 109             {
 110                 if (pj_param_f<srs::spar::n>(params, "n", srs::dpar::n, proj_parm.n)) {
 111                     if (proj_parm.n <= 0. || proj_parm.n > 1.)
 112                         BOOST_THROW_EXCEPTION( projection_exception(error_n_out_of_range) );
 113                 } else
 114                     BOOST_THROW_EXCEPTION( projection_exception(error_n_out_of_range) );
 115
 116                 setup(par, proj_parm);
 117             }
 118
 119             // Wagner I (Kavraisky VI)
 120             template <typename Parameters, typename T>
 121             inline void setup_wag1(Parameters& par, par_urmfps<T>& proj_parm)
 122             {
 123                 proj_parm.n = 0.8660254037844386467637231707;
 124                 setup(par, proj_parm);
 125             }
 126
 127     }} // namespace detail::urmfps
 128     #endif // doxygen
 129
 130     /*!
 131         \brief Urmaev Flat-Polar Sinusoidal projection
 132         \ingroup projections
 133         \tparam Geographic latlong point type
 134         \tparam Cartesian xy point type
 135         \tparam Parameters parameter type
 136         \par Projection characteristics
 137          - Pseudocylindrical
 138          - Spheroid
 139         \par Projection parameters
 140          - n (real)
 141         \par Example
 142         \image html ex_urmfps.gif
 143     */
 144     template <typename T, typename Parameters>
 145     struct urmfps_spheroid : public detail::urmfps::base_urmfps_spheroid<T, Parameters>
 146     {
 147         template <typename Params>
 148         inline urmfps_spheroid(Params const& params, Parameters & par)
 149         {
 150             detail::urmfps::setup_urmfps(params, par, this->m_proj_parm);
 151         }
 152     };
 153
 154     /*!
 155         \brief Wagner I (Kavraisky VI) projection
 156         \ingroup projections
 157         \tparam Geographic latlong point type
 158         \tparam Cartesian xy point type
 159         \tparam Parameters parameter type
 160         \par Projection characteristics
 161          - Pseudocylindrical
 162          - Spheroid
 163         \par Example
 164         \image html ex_wag1.gif
 165     */
 166     template <typename T, typename Parameters>
 167     struct wag1_spheroid : public detail::urmfps::base_urmfps_spheroid<T, Parameters>
 168     {
 169         template <typename Params>
 170         inline wag1_spheroid(Params const& , Parameters & par)
 171         {
 172             detail::urmfps::setup_wag1(par, this->m_proj_parm);
 173         }
 174     };
 175
 176     #ifndef DOXYGEN_NO_DETAIL
 177     namespace detail
 178     {
 179
 180         // Static projection
 181         BOOST_GEOMETRY_PROJECTIONS_DETAIL_STATIC_PROJECTION_FI(srs::spar::proj_urmfps, urmfps_spheroid)
 182         BOOST_GEOMETRY_PROJECTIONS_DETAIL_STATIC_PROJECTION_FI(srs::spar::proj_wag1, wag1_spheroid)
 183
 184         // Factory entry(s)
 185         BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_ENTRY_FI(urmfps_entry, urmfps_spheroid)
 186         BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_ENTRY_FI(wag1_entry, wag1_spheroid)
 187
 188         BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_INIT_BEGIN(urmfps_init)
 189         {
 190             BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_INIT_ENTRY(urmfps, urmfps_entry)
 191             BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_INIT_ENTRY(wag1, wag1_entry)
 192         }
 193
 194     } // namespace detail
 195     #endif // doxygen
 196
 197 } // namespace projections
 198
 199 }} // namespace boost::geometry
 200
 201 #endif // BOOST_GEOMETRY_PROJECTIONS_URMFPS_HPP
 202