--- /dev/null
+// Boost.Geometry (aka GGL, Generic Geometry Library)
+// This file is manually converted from PROJ4
+
+// Copyright (c) 2008-2012 Barend Gehrels, Amsterdam, the Netherlands.
+
+// This file was modified by Oracle on 2017, 2018.
+// Modifications copyright (c) 2017-2018, Oracle and/or its affiliates.
+// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
+
+// Use, modification and distribution is subject to the Boost Software License,
+// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+// This file is converted from PROJ4, http://trac.osgeo.org/proj
+// PROJ4 is originally written by Gerald Evenden (then of the USGS)
+// PROJ4 is maintained by Frank Warmerdam
+// PROJ4 is converted to Geometry Library by Barend Gehrels (Geodan, Amsterdam)
+
+// Original copyright notice:
+
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Software, and to permit persons to whom the
+// Software is furnished to do so, subject to the following conditions:
+
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+
+#ifndef BOOST_GEOMETRY_PROJECTIONS_IMPL_PJ_DATUM_SET_HPP
+#define BOOST_GEOMETRY_PROJECTIONS_IMPL_PJ_DATUM_SET_HPP
+
+
+#include <string>
+#include <vector>
+
+#include <boost/algorithm/string.hpp>
+
+#include <boost/geometry/srs/projections/exception.hpp>
+#include <boost/geometry/srs/projections/impl/projects.hpp>
+#include <boost/geometry/srs/projections/impl/pj_datums.hpp>
+#include <boost/geometry/srs/projections/impl/pj_param.hpp>
+#include <boost/geometry/srs/projections/par4.hpp>
+#include <boost/geometry/srs/projections/proj4.hpp>
+
+
+namespace boost { namespace geometry { namespace projections {
+
+namespace detail {
+
+
+/* SEC_TO_RAD = Pi/180/3600 */
+template <typename T>
+inline T SEC_TO_RAD() { return 4.84813681109535993589914102357e-6; }
+
+template <typename BGParams, typename T>
+inline void pj_datum_add_defn(BGParams const& , std::vector<pvalue<T> >& pvalues)
+{
+ /* -------------------------------------------------------------------- */
+ /* Is there a datum definition in the parameter list? If so, */
+ /* add the defining values to the parameter list. Note that */
+ /* this will append the ellipse definition as well as the */
+ /* towgs84= and related parameters. It should also be pointed */
+ /* out that the addition is permanent rather than temporary */
+ /* like most other keyword expansion so that the ellipse */
+ /* definition will last into the pj_ell_set() function called */
+ /* after this one. */
+ /* -------------------------------------------------------------------- */
+ std::string name = pj_param(pvalues, "sdatum").s;
+ if(! name.empty())
+ {
+ /* find the datum definition */
+ const int n = sizeof(pj_datums) / sizeof(pj_datums[0]);
+ int index = -1;
+ for (int i = 0; i < n && index == -1; i++)
+ {
+ if(pj_datums[i].id == name)
+ {
+ index = i;
+ }
+ }
+
+ if (index == -1)
+ {
+ BOOST_THROW_EXCEPTION( projection_exception(-9) );
+ }
+
+ if(! pj_datums[index].ellipse_id.empty())
+ {
+ std::string entry("ellps=");
+ entry +=pj_datums[index].ellipse_id;
+ pvalues.push_back(pj_mkparam<T>(entry));
+ }
+
+ if(! pj_datums[index].defn.empty())
+ {
+ pvalues.push_back(pj_mkparam<T>(pj_datums[index].defn));
+ }
+ }
+}
+
+template <BOOST_GEOMETRY_PROJECTIONS_DETAIL_TYPENAME_PX, typename T>
+inline void pj_datum_add_defn(srs::static_proj4<BOOST_GEOMETRY_PROJECTIONS_DETAIL_PX> const& /*bg_params*/,
+ std::vector<pvalue<T> >& pvalues)
+{
+ typedef srs::static_proj4<BOOST_GEOMETRY_PROJECTIONS_DETAIL_PX> bg_parameters_type;
+ typedef typename srs::par4::detail::tuples_find_if
+ <
+ bg_parameters_type,
+ //srs::par4::detail::is_datum
+ srs::par4::detail::is_param_t<srs::par4::datum>::pred
+ >::type datum_type;
+ typedef typename srs::par4::detail::datum_traits
+ <
+ datum_type
+ > datum_traits;
+
+ // is unknown if datum parameter found but traits are not specialized
+ static const bool not_set_or_known = boost::is_same<datum_type, void>::value
+ || ! boost::is_same<typename datum_traits::ellps_type, void>::value;
+ BOOST_MPL_ASSERT_MSG((not_set_or_known), UNKNOWN_DATUM, (bg_parameters_type));
+
+ std::string defn = datum_traits::definition();
+
+ if (! defn.empty())
+ {
+ pvalues.push_back(pj_mkparam<T>(defn));
+ }
+}
+
+/************************************************************************/
+/* pj_datum_set() */
+/************************************************************************/
+
+template <typename BGParams, typename T>
+inline void pj_datum_set(BGParams const& bg_params, std::vector<pvalue<T> >& pvalues, parameters<T>& projdef)
+{
+ static const T SEC_TO_RAD = detail::SEC_TO_RAD<T>();
+
+ projdef.datum_type = PJD_UNKNOWN;
+
+ pj_datum_add_defn(bg_params, pvalues);
+
+/* -------------------------------------------------------------------- */
+/* Check for nadgrids parameter. */
+/* -------------------------------------------------------------------- */
+ std::string nadgrids = pj_param(pvalues, "snadgrids").s;
+ std::string towgs84 = pj_param(pvalues, "stowgs84").s;
+ if(! nadgrids.empty())
+ {
+ /* We don't actually save the value separately. It will continue
+ to exist int he param list for use in pj_apply_gridshift.c */
+
+ projdef.datum_type = PJD_GRIDSHIFT;
+ }
+
+/* -------------------------------------------------------------------- */
+/* Check for towgs84 parameter. */
+/* -------------------------------------------------------------------- */
+ else if(! towgs84.empty())
+ {
+ int parm_count = 0;
+
+ int n = sizeof(projdef.datum_params) / sizeof(projdef.datum_params[0]);
+
+ /* parse out the pvalues */
+ std::vector<std::string> parm;
+ boost::split(parm, towgs84, boost::is_any_of(" ,"));
+ for (std::vector<std::string>::const_iterator it = parm.begin();
+ it != parm.end() && parm_count < n;
+ ++it)
+ {
+ projdef.datum_params[parm_count++] = atof(it->c_str());
+ }
+
+ if( projdef.datum_params[3] != 0.0
+ || projdef.datum_params[4] != 0.0
+ || projdef.datum_params[5] != 0.0
+ || projdef.datum_params[6] != 0.0 )
+ {
+ projdef.datum_type = PJD_7PARAM;
+
+ /* transform from arc seconds to radians */
+ projdef.datum_params[3] *= SEC_TO_RAD;
+ projdef.datum_params[4] *= SEC_TO_RAD;
+ projdef.datum_params[5] *= SEC_TO_RAD;
+ /* transform from parts per million to scaling factor */
+ projdef.datum_params[6] =
+ (projdef.datum_params[6]/1000000.0) + 1;
+ }
+ else
+ {
+ projdef.datum_type = PJD_3PARAM;
+ }
+
+ /* Note that pj_init() will later switch datum_type to
+ PJD_WGS84 if shifts are all zero, and ellipsoid is WGS84 or GRS80 */
+ }
+}
+
+} // namespace detail
+}}} // namespace boost::geometry::projections
+
+#endif // BOOST_GEOMETRY_PROJECTIONS_IMPL_PJ_DATUM_SET_HPP
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