projections/proj/lask.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_LASK_HPP
0041 #define BOOST_GEOMETRY_PROJECTIONS_LASK_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 lask
0055     {
0056
0057             static const double a10 = 0.975534;
0058             static const double a12 = -0.119161;
0059             static const double a32 = -0.0143059;
0060             static const double a14 = -0.0547009;
0061             static const double b01 = 1.00384;
0062             static const double b21 = 0.0802894;
0063             static const double b03 = 0.0998909;
0064             static const double b41 = 0.000199025;
0065             static const double b23 = -0.0285500;
0066             static const double b05 = -0.0491032;
0067
0068             template <typename T, typename Parameters>
0069             struct base_lask_spheroid
0070             {
0071                 // FORWARD(s_forward)  sphere
0072                 // Project coordinates from geographic (lon, lat) to cartesian (x, y)
0073                 inline void fwd(Parameters const& , T const& lp_lon, T const& lp_lat, T& xy_x, T& xy_y) const
0074                 {
0075                     T l2, p2;
0076
0077                     l2 = lp_lon * lp_lon;
0078                     p2 = lp_lat * lp_lat;
0079                     xy_x = lp_lon * (a10 + p2 * (a12 + l2 * a32 + p2 * a14));
0080                     xy_y = lp_lat * (b01 + l2 * (b21 + p2 * b23 + l2 * b41) +
0081                                p2 * (b03 + p2 * b05));
0082                 }
0083
0084                 static inline std::string get_name()
0085                 {
0086                     return "lask_spheroid";
0087                 }
0088
0089             };
0090
0091             // Laskowski
0092             template <typename Parameters>
0093             inline void setup_lask(Parameters& par)
0094             {
0095                 par.es = 0.;
0096             }
0097
0098     }} // namespace detail::lask
0099     #endif // doxygen
0100
0101     /*!
0102         \brief Laskowski projection
0103         \ingroup projections
0104         \tparam Geographic latlong point type
0105         \tparam Cartesian xy point type
0106         \tparam Parameters parameter type
0107         \par Projection characteristics
0108          - Miscellaneous
0109          - Spheroid
0110          - no inverse
0111         \par Example
0112         \image html ex_lask.gif
0113     */
0114     template <typename T, typename Parameters>
0115     struct lask_spheroid : public detail::lask::base_lask_spheroid<T, Parameters>
0116     {
0117         template <typename Params>
0118         inline lask_spheroid(Params const& , Parameters & par)
0119         {
0120             detail::lask::setup_lask(par);
0121         }
0122     };
0123
0124     #ifndef DOXYGEN_NO_DETAIL
0125     namespace detail
0126     {
0127
0128         // Static projection
0129         BOOST_GEOMETRY_PROJECTIONS_DETAIL_STATIC_PROJECTION_F(srs::spar::proj_lask, lask_spheroid)
0130
0131         // Factory entry(s)
0132         BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_ENTRY_F(lask_entry, lask_spheroid)
0133
0134         BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_INIT_BEGIN(lask_init)
0135         {
0136             BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_INIT_ENTRY(lask, lask_entry);
0137         }
0138
0139     } // namespace detail
0140     #endif // doxygen
0141
0142 } // namespace projections
0143
0144 }} // namespace boost::geometry
0145
0146 #endif // BOOST_GEOMETRY_PROJECTIONS_LASK_HPP
0147