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// Boost.Geometry (aka GGL, Generic Geometry Library)
// Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
// This file was modified by Oracle on 2017-2020.
// Modifications copyright (c) 2017-2020, 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)
#ifndef BOOST_GEOMETRY_PROJECTIONS_IMPL_BASE_DYNAMIC_HPP
#define BOOST_GEOMETRY_PROJECTIONS_IMPL_BASE_DYNAMIC_HPP
#include <string>
#include <boost/geometry/srs/projections/exception.hpp>
#include <boost/geometry/srs/projections/impl/projects.hpp>
namespace boost { namespace geometry { namespace projections
{
#ifndef DOXYGEN_NO_DETAIL
namespace detail
{
/*!
\brief projection virtual base class
\details class containing virtual methods
\ingroup projection
\tparam CT calculation type
\tparam P parameters type
*/
template <typename CT, typename P>
class dynamic_wrapper_b
{
public :
dynamic_wrapper_b(P const& par)
: m_par(par)
{}
virtual ~dynamic_wrapper_b() {}
/// Forward projection using lon / lat and x / y separately
virtual void fwd(P const& par, CT const& lp_lon, CT const& lp_lat, CT& xy_x, CT& xy_y) const = 0;
/// Inverse projection using x / y and lon / lat
virtual void inv(P const& par, CT const& xy_x, CT const& xy_y, CT& lp_lon, CT& lp_lat) const = 0;
/// Forward projection, from Latitude-Longitude to Cartesian
template <typename LL, typename XY>
inline bool forward(LL const& lp, XY& xy) const
{
try
{
pj_fwd(*this, m_par, lp, xy);
return true;
}
catch (...)
{
return false;
}
}
/// Inverse projection, from Cartesian to Latitude-Longitude
template <typename LL, typename XY>
inline bool inverse(XY const& xy, LL& lp) const
{
try
{
pj_inv(*this, m_par, xy, lp);
return true;
}
catch (projection_not_invertible_exception &)
{
BOOST_RETHROW
}
catch (...)
{
return false;
}
}
/// Returns name of projection
std::string name() const { return m_par.id.name; }
/// Returns parameters of projection
P const& params() const { return m_par; }
/// Returns mutable parameters of projection
P& mutable_params() { return m_par; }
protected:
P m_par;
};
// Forward
template <typename Prj, typename CT, typename P>
class dynamic_wrapper_f
: public dynamic_wrapper_b<CT, P>
, protected Prj
{
typedef dynamic_wrapper_b<CT, P> base_t;
public:
template <typename Params>
dynamic_wrapper_f(Params const& params, P const& par)
: base_t(par)
, Prj(params, this->m_par) // prj can modify parameters
{}
template <typename Params, typename P3>
dynamic_wrapper_f(Params const& params, P const& par, P3 const& p3)
: base_t(par)
, Prj(params, this->m_par, p3) // prj can modify parameters
{}
virtual void fwd(P const& par, CT const& lp_lon, CT const& lp_lat, CT& xy_x, CT& xy_y) const
{
prj().fwd(par, lp_lon, lp_lat, xy_x, xy_y);
}
virtual void inv(P const& , CT const& , CT const& , CT& , CT& ) const
{
BOOST_THROW_EXCEPTION(projection_not_invertible_exception(this->name()));
}
protected:
Prj const& prj() const { return *this; }
};
// Forward/inverse
template <typename Prj, typename CT, typename P>
class dynamic_wrapper_fi : public dynamic_wrapper_f<Prj, CT, P>
{
typedef dynamic_wrapper_f<Prj, CT, P> base_t;
public:
template <typename Params>
dynamic_wrapper_fi(Params const& params, P const& par)
: base_t(params, par)
{}
template <typename Params, typename P3>
dynamic_wrapper_fi(Params const& params, P const& par, P3 const& p3)
: base_t(params, par, p3)
{}
virtual void inv(P const& par, CT const& xy_x, CT const& xy_y, CT& lp_lon, CT& lp_lat) const
{
this->prj().inv(par, xy_x, xy_y, lp_lon, lp_lat);
}
};
} // namespace detail
#endif // DOXYGEN_NO_DETAIL
}}} // namespace boost::geometry::projections
#endif // BOOST_GEOMETRY_PROJECTIONS_IMPL_BASE_DYNAMIC_HPP
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