geocent.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.
  4. // Modifications copyright (c) 2017-2018, 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. // Purpose: Stub projection for geocentric. The transformation isn't
  16. // really done here since this code is 2D. The real transformation
  17. // is handled by pj_transform.c.
  18. // Author: Frank Warmerdam, warmerdam@pobox.com
  19. // Copyright (c) 2002, Frank Warmerdam
  20. // Permission is hereby granted, free of charge, to any person obtaining a
  21. // copy of this software and associated documentation files (the "Software"),
  22. // to deal in the Software without restriction, including without limitation
  23. // the rights to use, copy, modify, merge, publish, distribute, sublicense,
  24. // and/or sell copies of the Software, and to permit persons to whom the
  25. // Software is furnished to do so, subject to the following conditions:
  26. // The above copyright notice and this permission notice shall be included
  27. // in all copies or substantial portions of the Software.
  28. // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  29. // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  30. // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  31. // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  32. // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  33. // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  34. // DEALINGS IN THE SOFTWARE.
  35. #ifndef BOOST_GEOMETRY_PROJECTIONS_GEOCENT_HPP
  36. #define BOOST_GEOMETRY_PROJECTIONS_GEOCENT_HPP
  37. #include <boost/geometry/srs/projections/impl/base_static.hpp>
  38. #include <boost/geometry/srs/projections/impl/base_dynamic.hpp>
  39. #include <boost/geometry/srs/projections/impl/projects.hpp>
  40. #include <boost/geometry/srs/projections/impl/factory_entry.hpp>
  41. namespace boost { namespace geometry
  42. {
  43. namespace projections
  44. {
  45. #ifndef DOXYGEN_NO_DETAIL
  46. namespace detail { namespace geocent
  47. {
  48. // template class, using CRTP to implement forward/inverse
  49. template <typename T, typename Parameters>
  50. struct base_geocent_other
  51. : public base_t_fi<base_geocent_other<T, Parameters>, T, Parameters>
  52. {
  53. inline base_geocent_other(const Parameters& par)
  54. : base_t_fi<base_geocent_other<T, Parameters>, T, Parameters>(*this, par)
  55. {}
  56. // FORWARD(forward)
  57. // Project coordinates from geographic (lon, lat) to cartesian (x, y)
  58. inline void fwd(T const& lp_lon, T const& lp_lat, T& xy_x, T& xy_y) const
  59. {
  60. xy_x = lp_lon;
  61. xy_y = lp_lat;
  62. }
  63. // INVERSE(inverse)
  64. // Project coordinates from cartesian (x, y) to geographic (lon, lat)
  65. inline void inv(T const& xy_x, T const& xy_y, T& lp_lon, T& lp_lat) const
  66. {
  67. lp_lat = xy_y;
  68. lp_lon = xy_x;
  69. }
  70. static inline std::string get_name()
  71. {
  72. return "geocent_other";
  73. }
  74. };
  75. // Geocentric
  76. template <typename Parameters>
  77. inline void setup_geocent(Parameters& par)
  78. {
  79. par.is_geocent = 1;
  80. par.x0 = 0.0;
  81. par.y0 = 0.0;
  82. }
  83. }} // namespace detail::geocent
  84. #endif // doxygen
  85. /*!
  86. \brief Geocentric projection
  87. \ingroup projections
  88. \tparam Geographic latlong point type
  89. \tparam Cartesian xy point type
  90. \tparam Parameters parameter type
  91. \par Example
  92. \image html ex_geocent.gif
  93. */
  94. template <typename T, typename Parameters>
  95. struct geocent_other : public detail::geocent::base_geocent_other<T, Parameters>
  96. {
  97. template <typename Params>
  98. inline geocent_other(Params const& , Parameters const& par)
  99. : detail::geocent::base_geocent_other<T, Parameters>(par)
  100. {
  101. detail::geocent::setup_geocent(this->m_par);
  102. }
  103. };
  104. #ifndef DOXYGEN_NO_DETAIL
  105. namespace detail
  106. {
  107. // Static projection
  108. BOOST_GEOMETRY_PROJECTIONS_DETAIL_STATIC_PROJECTION(srs::spar::proj_geocent, geocent_other, geocent_other)
  109. // Factory entry(s)
  110. BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_ENTRY_FI(geocent_entry, geocent_other)
  111. BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_INIT_BEGIN(geocent_init)
  112. {
  113. BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_INIT_ENTRY(geocent, geocent_entry);
  114. }
  115. } // namespace detail
  116. #endif // doxygen
  117. } // namespace projections
  118. }} // namespace boost::geometry
  119. #endif // BOOST_GEOMETRY_PROJECTIONS_GEOCENT_HPP