projections/impl/pj_units.hpp

0001 // Boost.Geometry (aka GGL, Generic Geometry Library)
0002 // This file is manually converted from PROJ4
0003
0004 // Copyright (c) 2008-2012 Barend Gehrels, Amsterdam, the Netherlands.
0005
0006 // This file was modified by Oracle on 2017, 2018.
0007 // Modifications copyright (c) 2017-2018, Oracle and/or its affiliates.
0008 // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
0009
0010 // Use, modification and distribution is subject to the Boost Software License,
0011 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
0012 // http://www.boost.org/LICENSE_1_0.txt)
0013
0014 // This file is converted from PROJ4, http://trac.osgeo.org/proj
0015 // PROJ4 is originally written by Gerald Evenden (then of the USGS)
0016 // PROJ4 is maintained by Frank Warmerdam
0017 // PROJ4 is converted to Geometry Library by Barend Gehrels (Geodan, Amsterdam)
0018
0019 // Original copyright notice:
0020
0021 // Permission is hereby granted, free of charge, to any person obtaining a
0022 // copy of this software and associated documentation files (the "Software"),
0023 // to deal in the Software without restriction, including without limitation
0024 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
0025 // and/or sell copies of the Software, and to permit persons to whom the
0026 // Software is furnished to do so, subject to the following conditions:
0027
0028 // The above copyright notice and this permission notice shall be included
0029 // in all copies or substantial portions of the Software.
0030
0031 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
0032 // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0033 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
0034 // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
0035 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
0036 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
0037 // DEALINGS IN THE SOFTWARE.
0038
0039 #ifndef BOOST_GEOMETRY_PROJECTIONS_IMPL_PJ_UNITS_HPP
0040 #define BOOST_GEOMETRY_PROJECTIONS_IMPL_PJ_UNITS_HPP
0041
0042 #include <boost/geometry/srs/projections/impl/projects.hpp>
0043
0044 namespace boost { namespace geometry { namespace projections {
0045 namespace detail {
0046
0047 // Originally defined in projects.h
0048 struct pj_units_type
0049 {
0050     std::string id;       /* units keyword */
0051     std::string to_meter; /* multiply by value to get meters */
0052     double numerator;
0053     double denominator;
0054     std::string name;     /* comments */
0055 };
0056
0057 /* Field 2 that contains the multiplier to convert named units to meters
0058 ** may be expressed by either a simple floating point constant or a
0059 ** numerator/denomenator values (e.g. 1/1000) */
0060
0061 static const pj_units_type pj_units[] =
0062 {
0063     { "km",     "1000.",    1000.0, 1.0, "Kilometer" },
0064     { "m",      "1.",       1.0,    1.0, "Meter" },
0065     { "dm",     "1/10",     1.0, 10.0, "Decimeter" },
0066     { "cm",     "1/100",    1.0, 100.0, "Centimeter" },
0067     { "mm",     "1/1000",   1.0, 1000.0, "Millimeter" },
0068     { "kmi",    "1852.",   1852.0, 1.0,     "International Nautical Mile" },
0069     { "in",     "0.0254",   0.0254, 1.0, "International Inch" },
0070     { "ft",     "0.3048",   0.3048, 1.0, "International Foot" },
0071     { "yd",     "0.9144",   0.9144, 1.0, "International Yard" },
0072     { "mi",     "1609.344", 1609.344, 1.0, "International Statute Mile" },
0073     { "fath",   "1.8288",   1.8288, 1.0, "International Fathom" },
0074     { "ch",     "20.1168",  20.1168, 1.0, "International Chain" },
0075     { "link",   "0.201168", 0.201168, 1.0, "International Link" },
0076     { "us-in",  "1./39.37", 1.0, 39.37, "U.S. Surveyor's Inch" },
0077     { "us-ft",  "0.304800609601219", 0.304800609601219, 1.0, "U.S. Surveyor's Foot" },
0078     { "us-yd",  "0.914401828803658", 0.914401828803658, 1.0, "U.S. Surveyor's Yard" },
0079     { "us-ch",  "20.11684023368047", 20.11684023368047, 1.0, "U.S. Surveyor's Chain" },
0080     { "us-mi",  "1609.347218694437", 1609.347218694437, 1.0, "U.S. Surveyor's Statute Mile" },
0081     { "ind-yd", "0.91439523",        0.91439523, 1.0, "Indian Yard" },
0082     { "ind-ft", "0.30479841",        0.30479841, 1.0, "Indian Foot" },
0083     { "ind-ch", "20.11669506",       20.11669506, 1.0, "Indian Chain" }
0084 };
0085
0086 } // detail
0087 }}} // namespace boost::geometry::projections
0088
0089 #endif // BOOST_GEOMETRY_PROJECTIONS_IMPL_PJ_UNITS_HPP