ceph/src/boost/boost/geometry/srs/projections/proj/denoy.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_DENOY_HPP
  41 #define BOOST_GEOMETRY_PROJECTIONS_DENOY_HPP
  42
  43 #include <boost/geometry/srs/projections/impl/base_static.hpp>
  44 #include <boost/geometry/srs/projections/impl/base_dynamic.hpp>
  45 #include <boost/geometry/srs/projections/impl/projects.hpp>
  46 #include <boost/geometry/srs/projections/impl/factory_entry.hpp>
  47
  48 namespace boost { namespace geometry
  49 {
  50
  51 namespace projections
  52 {
  53     #ifndef DOXYGEN_NO_DETAIL
  54     namespace detail { namespace denoy
  55     {
  56
  57             static const double C0 = 0.95;
  58             //static const double C1 = -0.08333333333333333333;
  59             //static const double C3 = 0.00166666666666666666;
  60             static const double D1 = 0.9;
  61             static const double D5 = 0.03;
  62
  63             template <typename T>
  64             inline T C1() { return -0.0833333333333333333333333333333; }
  65             template <typename T>
  66             inline T C3() { return 0.0016666666666666666666666666666; }
  67
  68             template <typename T, typename Parameters>
  69             struct base_denoy_spheroid
  70             {
  71                 // FORWARD(s_forward)  spheroid
  72                 // Project coordinates from geographic (lon, lat) to cartesian (x, y)
  73                 inline void fwd(Parameters const& , T lp_lon, T const& lp_lat, T& xy_x, T& xy_y) const
  74                 {
  75                     static const T C1 = denoy::C1<T>();
  76                     static const T C3 = denoy::C3<T>();
  77
  78                     xy_y = lp_lat;
  79                     xy_x = lp_lon;
  80                     lp_lon = fabs(lp_lon);
  81                     xy_x *= cos((C0 + lp_lon * (C1 + lp_lon * lp_lon * C3)) *
  82                         (lp_lat * (D1 + D5 * lp_lat * lp_lat * lp_lat * lp_lat)));
  83                 }
  84
  85                 static inline std::string get_name()
  86                 {
  87                     return "denoy_spheroid";
  88                 }
  89
  90             };
  91
  92             // Denoyer Semi-Elliptical
  93             template <typename Parameters>
  94             inline void setup_denoy(Parameters& par)
  95             {
  96                 par.es = 0.0;
  97             }
  98
  99     }} // namespace detail::denoy
 100     #endif // doxygen
 101
 102     /*!
 103         \brief Denoyer Semi-Elliptical projection
 104         \ingroup projections
 105         \tparam Geographic latlong point type
 106         \tparam Cartesian xy point type
 107         \tparam Parameters parameter type
 108         \par Projection characteristics
 109          - Pseudocylindrical
 110          - no inverse
 111          - Spheroid
 112         \par Example
 113         \image html ex_denoy.gif
 114     */
 115     template <typename T, typename Parameters>
 116     struct denoy_spheroid : public detail::denoy::base_denoy_spheroid<T, Parameters>
 117     {
 118         template <typename Params>
 119         inline denoy_spheroid(Params const& , Parameters & par)
 120         {
 121             detail::denoy::setup_denoy(par);
 122         }
 123     };
 124
 125     #ifndef DOXYGEN_NO_DETAIL
 126     namespace detail
 127     {
 128
 129         // Static projection
 130         BOOST_GEOMETRY_PROJECTIONS_DETAIL_STATIC_PROJECTION_F(srs::spar::proj_denoy, denoy_spheroid)
 131
 132         // Factory entry(s)
 133         BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_ENTRY_F(denoy_entry, denoy_spheroid)
 134
 135         BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_INIT_BEGIN(denoy_init)
 136         {
 137             BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_INIT_ENTRY(denoy, denoy_entry);
 138         }
 139
 140     } // namespace detail
 141     #endif // doxygen
 142
 143 } // namespace projections
 144
 145 }} // namespace boost::geometry
 146
 147 #endif // BOOST_GEOMETRY_PROJECTIONS_DENOY_HPP
 148