projections/proj/tcc.hpp

0001 // Boost.Geometry - gis-projections (based on PROJ4)
0002
0003 // Copyright (c) 2008-2015 Barend Gehrels, Amsterdam, the Netherlands.
0004
0005 // This file was modified by Oracle on 2017, 2018, 2019.
0006 // Modifications copyright (c) 2017-2019, Oracle and/or its affiliates.
0007 // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle.
0008
0009 // Use, modification and distribution is subject to the Boost Software License,
0010 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
0011 // http://www.boost.org/LICENSE_1_0.txt)
0012
0013 // This file is converted from PROJ4, http://trac.osgeo.org/proj
0014 // PROJ4 is originally written by Gerald Evenden (then of the USGS)
0015 // PROJ4 is maintained by Frank Warmerdam
0016 // PROJ4 is converted to Boost.Geometry by Barend Gehrels
0017
0018 // Last updated version of proj: 5.0.0
0019
0020 // Original copyright notice:
0021
0022 // Permission is hereby granted, free of charge, to any person obtaining a
0023 // copy of this software and associated documentation files (the "Software"),
0024 // to deal in the Software without restriction, including without limitation
0025 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
0026 // and/or sell copies of the Software, and to permit persons to whom the
0027 // Software is furnished to do so, subject to the following conditions:
0028
0029 // The above copyright notice and this permission notice shall be included
0030 // in all copies or substantial portions of the Software.
0031
0032 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
0033 // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0034 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
0035 // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
0036 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
0037 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
0038 // DEALINGS IN THE SOFTWARE.
0039
0040 #ifndef BOOST_GEOMETRY_PROJECTIONS_TCC_HPP
0041 #define BOOST_GEOMETRY_PROJECTIONS_TCC_HPP
0042
0043 #include <boost/geometry/srs/projections/impl/base_static.hpp>
0044 #include <boost/geometry/srs/projections/impl/base_dynamic.hpp>
0045 #include <boost/geometry/srs/projections/impl/projects.hpp>
0046 #include <boost/geometry/srs/projections/impl/factory_entry.hpp>
0047
0048 namespace boost { namespace geometry
0049 {
0050
0051 namespace projections
0052 {
0053     #ifndef DOXYGEN_NO_DETAIL
0054     namespace detail { namespace tcc
0055     {
0056
0057             static const double epsilon10 = 1.e-10;
0058
0059             template <typename T, typename Parameters>
0060             struct base_tcc_spheroid
0061             {
0062                 // FORWARD(s_forward)  spheroid
0063                 // Project coordinates from geographic (lon, lat) to cartesian (x, y)
0064                 inline void fwd(Parameters const& , T const& lp_lon, T const& lp_lat, T& xy_x, T& xy_y) const
0065                 {
0066                     T b, bt;
0067
0068                     b = cos(lp_lat) * sin(lp_lon);
0069                     if ((bt = 1. - b * b) < epsilon10) {
0070                         BOOST_THROW_EXCEPTION( projection_exception(error_tolerance_condition) );
0071                     }
0072                     xy_x = b / sqrt(bt);
0073                     xy_y = atan2(tan(lp_lat) , cos(lp_lon));
0074                 }
0075
0076                 static inline std::string get_name()
0077                 {
0078                     return "tcc_spheroid";
0079                 }
0080
0081             };
0082
0083             // Transverse Central Cylindrical
0084             template <typename Parameters>
0085             inline void setup_tcc(Parameters& par)
0086             {
0087                 par.es = 0.;
0088             }
0089
0090     }} // namespace detail::tcc
0091     #endif // doxygen
0092
0093     /*!
0094         \brief Transverse Central Cylindrical projection
0095         \ingroup projections
0096         \tparam Geographic latlong point type
0097         \tparam Cartesian xy point type
0098         \tparam Parameters parameter type
0099         \par Projection characteristics
0100          - Cylindrical
0101          - Spheroid
0102          - no inverse
0103         \par Example
0104         \image html ex_tcc.gif
0105     */
0106     template <typename T, typename Parameters>
0107     struct tcc_spheroid : public detail::tcc::base_tcc_spheroid<T, Parameters>
0108     {
0109         template <typename Params>
0110         inline tcc_spheroid(Params const& , Parameters & par)
0111         {
0112             detail::tcc::setup_tcc(par);
0113         }
0114     };
0115
0116     #ifndef DOXYGEN_NO_DETAIL
0117     namespace detail
0118     {
0119
0120         // Static projection
0121         BOOST_GEOMETRY_PROJECTIONS_DETAIL_STATIC_PROJECTION_F(srs::spar::proj_tcc, tcc_spheroid)
0122
0123         // Factory entry(s)
0124         BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_ENTRY_F(tcc_entry, tcc_spheroid)
0125
0126         BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_INIT_BEGIN(tcc_init)
0127         {
0128             BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_INIT_ENTRY(tcc, tcc_entry)
0129         }
0130
0131     } // namespace detail
0132     #endif // doxygen
0133
0134 } // namespace projections
0135
0136 }} // namespace boost::geometry
0137
0138 #endif // BOOST_GEOMETRY_PROJECTIONS_TCC_HPP
0139