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// Boost.Geometry - gis-projections (based on PROJ4)
// Copyright (c) 2022, Oracle and/or its affiliates.
// Contributed and/or modified by Vissarion Fysikopoulos, 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 Boost.Geometry by Barend Gehrels
// Last updated version of proj: 9.0.0
// 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.
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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#ifndef BOOST_GEOMETRY_PROJECTIONS_COL_URBAN_HPP
#define BOOST_GEOMETRY_PROJECTIONS_COL_URBAN_HPP
#include <boost/geometry/util/math.hpp>
#include <boost/geometry/srs/projections/impl/base_static.hpp>
#include <boost/geometry/srs/projections/impl/base_dynamic.hpp>
#include <boost/geometry/srs/projections/impl/pj_param.hpp>
#include <boost/geometry/srs/projections/impl/projects.hpp>
#include <boost/geometry/srs/projections/impl/factory_entry.hpp>
namespace boost { namespace geometry
{
namespace projections
{
#ifndef DOXYGEN_NO_DETAIL
namespace detail { namespace col_urban
{
template <typename T>
struct par_col_urban
{
T h0; // height of projection origin, divided by semi-major axis (a)
T rho0; // adimensional value, contrary to Guidance note 7.2
T A;
T B; // adimensional value, contrary to Guidance note 7.2
T C;
T D; // adimensional value, contrary to Guidance note 7.2
};
template <typename T, typename Parameters>
struct base_col_urban_spheroid
{
par_col_urban<T> m_proj_parm;
// FORWARD(s_forward) spheroid
// Project coordinates from geographic (lon, lat) to cartesian (x, y)
inline void fwd(Parameters const& par, T const& lp_lon, T const& lp_lat, T& xy_x, T& xy_y) const
{
const T cosphi = cos(lp_lat);
const T sinphi = sin(lp_lat);
const T nu = 1. / sqrt(1 - par.es * sinphi * sinphi);
const T lam_nu_cosphi = lp_lon * nu * cosphi;
xy_x = this->m_proj_parm.A * lam_nu_cosphi;
const T sinphi_m = sin(0.5 * (lp_lat + par.phi0));
const T rho_m = (1 - par.es) / pow(1 - par.es * sinphi_m * sinphi_m, 1.5);
const T G = 1 + this->m_proj_parm.h0 / rho_m;
xy_y = G * this->m_proj_parm.rho0 * ((lp_lat - par.phi0) + this->m_proj_parm.B * lam_nu_cosphi * lam_nu_cosphi);
}
// INVERSE(s_inverse) spheroid
// Project coordinates from cartesian (x, y) to geographic (lon, lat)
inline void inv(Parameters const& par, T const& xy_x, T const& xy_y, T& lp_lon, T& lp_lat) const
{
lp_lat = par.phi0 + xy_y / this->m_proj_parm.D - this->m_proj_parm.B * (xy_x / this->m_proj_parm.C) * (xy_x / this->m_proj_parm.C);
const double sinphi = sin(lp_lat);
const double nu = 1. / sqrt(1 - par.es * sinphi * sinphi);
lp_lon = xy_x / (this->m_proj_parm.C * nu * cos(lp_lat));
}
static inline std::string get_name()
{
return "col_urban_spheroid";
}
};
// Colombia Urban
template <typename Params, typename Parameters, typename T>
inline void setup(Params const& params, Parameters const& par, par_col_urban<T>& proj_parm)
{
T h0_unscaled;
if ( !pj_param_f<srs::spar::h_0>(params, "h_0", srs::dpar::h_0, h0_unscaled) ){
h0_unscaled = T(0);
}
proj_parm.h0 = h0_unscaled / par.a;
const T sinphi0 = sin(par.phi0);
const T nu0 = 1. / sqrt(1 - par.es * sinphi0 * sinphi0);
proj_parm.A = 1 + proj_parm.h0 / nu0;
proj_parm.rho0 = (1 - par.es) / pow(1 - par.es * sinphi0 * sinphi0, 1.5);
proj_parm.B = tan(par.phi0) / (2 * proj_parm.rho0 * nu0);
proj_parm.C = 1 + proj_parm.h0;
proj_parm.D = proj_parm.rho0 * (1 + proj_parm.h0 / (1 - par.es));
}
}} // namespace col_urban
#endif // doxygen
/*!
\brief Colombia Urban
\ingroup projections
\tparam Geographic latlong point type
\tparam Cartesian xy point type
\tparam Parameters parameter type
*/
template <typename T, typename Parameters>
struct col_urban_spheroid : public detail::col_urban::base_col_urban_spheroid<T, Parameters>
{
template <typename Params>
inline col_urban_spheroid(Params const& params, Parameters & par)
{
detail::col_urban::setup(params, par, this->m_proj_parm);
}
};
#ifndef DOXYGEN_NO_DETAIL
namespace detail
{
// Static projection
BOOST_GEOMETRY_PROJECTIONS_DETAIL_STATIC_PROJECTION_FI(srs::spar::proj_col_urban, col_urban_spheroid)
// Factory entry(s)
BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_ENTRY_FI(col_urban_entry, col_urban_spheroid)
BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_INIT_BEGIN(col_urban_init)
{
BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_INIT_ENTRY(col_urban, col_urban_entry);
}
} // namespace detail
#endif // doxygen
} // namespace projections
}} // namespace boost::geometry
#endif // BOOST_GEOMETRY_PROJECTIONS_COL_URBAN_HPP
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