wink1.hpp 5.4 KB

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  1. // Boost.Geometry - gis-projections (based on PROJ4)
  2. // Copyright (c) 2008-2015 Barend Gehrels, Amsterdam, the Netherlands.
  3. // This file was modified by Oracle on 2017, 2018, 2019.
  4. // Modifications copyright (c) 2017-2019, Oracle and/or its affiliates.
  5. // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle.
  6. // Use, modification and distribution is subject to the Boost Software License,
  7. // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
  8. // http://www.boost.org/LICENSE_1_0.txt)
  9. // This file is converted from PROJ4, http://trac.osgeo.org/proj
  10. // PROJ4 is originally written by Gerald Evenden (then of the USGS)
  11. // PROJ4 is maintained by Frank Warmerdam
  12. // PROJ4 is converted to Boost.Geometry by Barend Gehrels
  13. // Last updated version of proj: 5.0.0
  14. // Original copyright notice:
  15. // Permission is hereby granted, free of charge, to any person obtaining a
  16. // copy of this software and associated documentation files (the "Software"),
  17. // to deal in the Software without restriction, including without limitation
  18. // the rights to use, copy, modify, merge, publish, distribute, sublicense,
  19. // and/or sell copies of the Software, and to permit persons to whom the
  20. // Software is furnished to do so, subject to the following conditions:
  21. // The above copyright notice and this permission notice shall be included
  22. // in all copies or substantial portions of the Software.
  23. // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  24. // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  25. // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  26. // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  27. // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  28. // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  29. // DEALINGS IN THE SOFTWARE.
  30. #ifndef BOOST_GEOMETRY_PROJECTIONS_WINK1_HPP
  31. #define BOOST_GEOMETRY_PROJECTIONS_WINK1_HPP
  32. #include <boost/geometry/srs/projections/impl/base_static.hpp>
  33. #include <boost/geometry/srs/projections/impl/base_dynamic.hpp>
  34. #include <boost/geometry/srs/projections/impl/factory_entry.hpp>
  35. #include <boost/geometry/srs/projections/impl/pj_param.hpp>
  36. #include <boost/geometry/srs/projections/impl/projects.hpp>
  37. namespace boost { namespace geometry
  38. {
  39. namespace projections
  40. {
  41. #ifndef DOXYGEN_NO_DETAIL
  42. namespace detail { namespace wink1
  43. {
  44. template <typename T>
  45. struct par_wink1
  46. {
  47. T cosphi1;
  48. };
  49. template <typename T, typename Parameters>
  50. struct base_wink1_spheroid
  51. {
  52. par_wink1<T> m_proj_parm;
  53. // FORWARD(s_forward) spheroid
  54. // Project coordinates from geographic (lon, lat) to cartesian (x, y)
  55. inline void fwd(Parameters const& , T const& lp_lon, T const& lp_lat, T& xy_x, T& xy_y) const
  56. {
  57. xy_x = .5 * lp_lon * (this->m_proj_parm.cosphi1 + cos(lp_lat));
  58. xy_y = lp_lat;
  59. }
  60. // INVERSE(s_inverse) spheroid
  61. // Project coordinates from cartesian (x, y) to geographic (lon, lat)
  62. inline void inv(Parameters const& , T const& xy_x, T const& xy_y, T& lp_lon, T& lp_lat) const
  63. {
  64. lp_lat = xy_y;
  65. lp_lon = 2. * xy_x / (this->m_proj_parm.cosphi1 + cos(lp_lat));
  66. }
  67. static inline std::string get_name()
  68. {
  69. return "wink1_spheroid";
  70. }
  71. };
  72. // Winkel I
  73. template <typename Params, typename Parameters, typename T>
  74. inline void setup_wink1(Params const& params, Parameters& par, par_wink1<T>& proj_parm)
  75. {
  76. proj_parm.cosphi1 = cos(pj_get_param_r<T, srs::spar::lat_ts>(params, "lat_ts", srs::dpar::lat_ts));
  77. par.es = 0.;
  78. }
  79. }} // namespace detail::wink1
  80. #endif // doxygen
  81. /*!
  82. \brief Winkel I projection
  83. \ingroup projections
  84. \tparam Geographic latlong point type
  85. \tparam Cartesian xy point type
  86. \tparam Parameters parameter type
  87. \par Projection characteristics
  88. - Pseudocylindrical
  89. - Spheroid
  90. \par Projection parameters
  91. - lat_ts: Latitude of true scale (degrees)
  92. \par Example
  93. \image html ex_wink1.gif
  94. */
  95. template <typename T, typename Parameters>
  96. struct wink1_spheroid : public detail::wink1::base_wink1_spheroid<T, Parameters>
  97. {
  98. template <typename Params>
  99. inline wink1_spheroid(Params const& params, Parameters & par)
  100. {
  101. detail::wink1::setup_wink1(params, par, this->m_proj_parm);
  102. }
  103. };
  104. #ifndef DOXYGEN_NO_DETAIL
  105. namespace detail
  106. {
  107. // Static projection
  108. BOOST_GEOMETRY_PROJECTIONS_DETAIL_STATIC_PROJECTION_FI(srs::spar::proj_wink1, wink1_spheroid)
  109. // Factory entry(s)
  110. BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_ENTRY_FI(wink1_entry, wink1_spheroid)
  111. BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_INIT_BEGIN(wink1_init)
  112. {
  113. BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_INIT_ENTRY(wink1, wink1_entry)
  114. }
  115. } // namespace detail
  116. #endif // doxygen
  117. } // namespace projections
  118. }} // namespace boost::geometry
  119. #endif // BOOST_GEOMETRY_PROJECTIONS_WINK1_HPP