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1#ifndef BOOST_GEOMETRY_PROJECTIONS_FAHEY_HPP
2#define BOOST_GEOMETRY_PROJECTIONS_FAHEY_HPP
3
4// Boost.Geometry - extensions-gis-projections (based on PROJ4)
5// This file is automatically generated. DO NOT EDIT.
6
7// Copyright (c) 2008-2015 Barend Gehrels, Amsterdam, the Netherlands.
8
9// This file was modified by Oracle on 2017.
10// Modifications copyright (c) 2017, Oracle and/or its affiliates.
11// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle.
12
13// Use, modification and distribution is subject to the Boost Software License,
14// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
15// http://www.boost.org/LICENSE_1_0.txt)
16
17// This file is converted from PROJ4, http://trac.osgeo.org/proj
18// PROJ4 is originally written by Gerald Evenden (then of the USGS)
19// PROJ4 is maintained by Frank Warmerdam
20// PROJ4 is converted to Boost.Geometry by Barend Gehrels
21
22// Last updated version of proj: 4.9.1
23
24// Original copyright notice:
25
26// Permission is hereby granted, free of charge, to any person obtaining a
27// copy of this software and associated documentation files (the "Software"),
28// to deal in the Software without restriction, including without limitation
29// the rights to use, copy, modify, merge, publish, distribute, sublicense,
30// and/or sell copies of the Software, and to permit persons to whom the
31// Software is furnished to do so, subject to the following conditions:
32
33// The above copyright notice and this permission notice shall be included
34// in all copies or substantial portions of the Software.
35
36// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
37// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
38// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
39// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
40// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
41// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
42// DEALINGS IN THE SOFTWARE.
43
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/projects.hpp>
47#include <boost/geometry/srs/projections/impl/factory_entry.hpp>
48#include <boost/geometry/srs/projections/impl/aasincos.hpp>
49
50namespace boost { namespace geometry
51{
52
53namespace srs { namespace par4
54{
55 struct fahey {};
56
57}} //namespace srs::par4
58
59namespace projections
60{
61 #ifndef DOXYGEN_NO_DETAIL
62 namespace detail { namespace fahey
63 {
64
65 static const double TOL = 1e-6;
66
67 // template class, using CRTP to implement forward/inverse
68 template <typename CalculationType, typename Parameters>
69 struct base_fahey_spheroid : public base_t_fi<base_fahey_spheroid<CalculationType, Parameters>,
70 CalculationType, Parameters>
71 {
72
73 typedef CalculationType geographic_type;
74 typedef CalculationType cartesian_type;
75
76
77 inline base_fahey_spheroid(const Parameters& par)
78 : base_t_fi<base_fahey_spheroid<CalculationType, Parameters>,
79 CalculationType, Parameters>(*this, par) {}
80
81 // FORWARD(s_forward) spheroid
82 // Project coordinates from geographic (lon, lat) to cartesian (x, y)
83 inline void fwd(geographic_type& lp_lon, geographic_type& lp_lat, cartesian_type& xy_x, cartesian_type& xy_y) const
84 {
85 xy_y = 1.819152 * ( xy_x = tan(0.5 * lp_lat) );
86 xy_x = 0.819152 * lp_lon * asqrt(1 - xy_x * xy_x);
87 }
88
89 // INVERSE(s_inverse) spheroid
90 // Project coordinates from cartesian (x, y) to geographic (lon, lat)
91 inline void inv(cartesian_type& xy_x, cartesian_type& xy_y, geographic_type& lp_lon, geographic_type& lp_lat) const
92 {
93 lp_lat = 2. * atan(xy_y /= 1.819152);
94 lp_lon = fabs(xy_y = 1. - xy_y * xy_y) < TOL ? 0. :
95 xy_x / (0.819152 * sqrt(xy_y));
96 }
97
98 static inline std::string get_name()
99 {
100 return "fahey_spheroid";
101 }
102
103 };
104
105 // Fahey
106 template <typename Parameters>
107 inline void setup_fahey(Parameters& par)
108 {
109 par.es = 0.;
110 }
111
112 }} // namespace detail::fahey
113 #endif // doxygen
114
115 /*!
116 \brief Fahey projection
117 \ingroup projections
118 \tparam Geographic latlong point type
119 \tparam Cartesian xy point type
120 \tparam Parameters parameter type
121 \par Projection characteristics
122 - Pseudocylindrical
123 - Spheroid
124 \par Example
125 \image html ex_fahey.gif
126 */
127 template <typename CalculationType, typename Parameters>
128 struct fahey_spheroid : public detail::fahey::base_fahey_spheroid<CalculationType, Parameters>
129 {
130 inline fahey_spheroid(const Parameters& par) : detail::fahey::base_fahey_spheroid<CalculationType, Parameters>(par)
131 {
132 detail::fahey::setup_fahey(this->m_par);
133 }
134 };
135
136 #ifndef DOXYGEN_NO_DETAIL
137 namespace detail
138 {
139
140 // Static projection
141 BOOST_GEOMETRY_PROJECTIONS_DETAIL_STATIC_PROJECTION(srs::par4::fahey, fahey_spheroid, fahey_spheroid)
142
143 // Factory entry(s)
144 template <typename CalculationType, typename Parameters>
145 class fahey_entry : public detail::factory_entry<CalculationType, Parameters>
146 {
147 public :
148 virtual base_v<CalculationType, Parameters>* create_new(const Parameters& par) const
149 {
150 return new base_v_fi<fahey_spheroid<CalculationType, Parameters>, CalculationType, Parameters>(par);
151 }
152 };
153
154 template <typename CalculationType, typename Parameters>
155 inline void fahey_init(detail::base_factory<CalculationType, Parameters>& factory)
156 {
157 factory.add_to_factory("fahey", new fahey_entry<CalculationType, Parameters>);
158 }
159
160 } // namespace detail
161 #endif // doxygen
162
163} // namespace projections
164
165}} // namespace boost::geometry
166
167#endif // BOOST_GEOMETRY_PROJECTIONS_FAHEY_HPP
168