-#ifndef BOOST_GEOMETRY_PROJECTIONS_ROBIN_HPP
-#define BOOST_GEOMETRY_PROJECTIONS_ROBIN_HPP
-
-// Boost.Geometry - extensions-gis-projections (based on PROJ4)
-// This file is automatically generated. DO NOT EDIT.
+// Boost.Geometry - gis-projections (based on PROJ4)
// Copyright (c) 2008-2015 Barend Gehrels, Amsterdam, the Netherlands.
-// This file was modified by Oracle on 2017.
-// Modifications copyright (c) 2017, Oracle and/or its affiliates.
+// This file was modified by Oracle on 2017, 2018, 2019.
+// Modifications copyright (c) 2017-2019, 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,
// PROJ4 is maintained by Frank Warmerdam
// PROJ4 is converted to Boost.Geometry by Barend Gehrels
-// Last updated version of proj: 4.9.1
+// Last updated version of proj: 5.0.0
// Original copyright notice:
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
+#ifndef BOOST_GEOMETRY_PROJECTIONS_ROBIN_HPP
+#define BOOST_GEOMETRY_PROJECTIONS_ROBIN_HPP
+
#include <boost/geometry/util/math.hpp>
#include <boost/geometry/srs/projections/impl/base_static.hpp>
namespace boost { namespace geometry
{
-namespace srs { namespace par4
-{
- struct robin {};
-
-}} //namespace srs::par4
-
namespace projections
{
#ifndef DOXYGEN_NO_DETAIL
static const double FYC = 1.3523;
static const double C1 = 11.45915590261646417544;
static const double RC1 = 0.08726646259971647884;
- static const int NODES = 18;
- static const double ONEEPS = 1.000001;
- static const double EPS = 1e-8;
+ static const int n_nodes = 18;
+ static const double one_plus_eps = 1.000001;
+ static const double epsilon = 1e-8;
+ /* Not sure at all of the appropriate number for max_iter... */
+ static const int max_iter = 100;
/*
note: following terms based upon 5 deg. intervals in degrees.
*/
template <typename T>
- struct COEFS {
+ struct coefs {
T c0, c1, c2, c3;
};
template <typename T>
- inline const COEFS<T> * X()
+ inline const coefs<T> * coefs_x()
{
- static const COEFS<T> result[] = {
+ static const coefs<T> result[] = {
{1.0, 2.2199e-17, -7.15515e-05, 3.1103e-06},
{0.9986, -0.000482243, -2.4897e-05, -1.3309e-06},
{0.9954, -0.00083103, -4.48605e-05, -9.86701e-07},
}
template <typename T>
- inline const COEFS<T> * Y()
+ inline const coefs<T> * coefs_y()
{
- static const COEFS<T> result[] = {
+ static const coefs<T> result[] = {
{-5.20417e-18, 0.0124, 1.21431e-18, -8.45284e-11},
{0.062, 0.0124, -1.26793e-09, 4.22642e-10},
{0.124, 0.0124, 5.07171e-09, -1.60604e-09},
return result;
}
- // template class, using CRTP to implement forward/inverse
- template <typename CalculationType, typename Parameters>
- struct base_robin_spheroid : public base_t_fi<base_robin_spheroid<CalculationType, Parameters>,
- CalculationType, Parameters>
+ template <typename T, typename Parameters>
+ struct base_robin_spheroid
{
-
- typedef CalculationType geographic_type;
- typedef CalculationType cartesian_type;
-
-
- inline base_robin_spheroid(const Parameters& par)
- : base_t_fi<base_robin_spheroid<CalculationType, Parameters>,
- CalculationType, Parameters>(*this, par) {}
-
- template <typename T>
- inline T V(COEFS<T> const& C, T const& z) const
- { return (C.c0 + z * (C.c1 + z * (C.c2 + z * C.c3))); }
- template <typename T>
- inline T DV(COEFS<T> const& C, T const& z) const
- { return (C.c1 + z * (C.c2 + C.c2 + z * 3. * C.c3)); }
+ inline T v(coefs<T> const& c, T const& z) const
+ { return (c.c0 + z * (c.c1 + z * (c.c2 + z * c.c3))); }
+ inline T dv(coefs<T> const& c, T const& z) const
+ { return (c.c1 + z * (c.c2 + c.c2 + z * 3. * c.c3)); }
// FORWARD(s_forward) spheroid
// Project coordinates from geographic (lon, lat) to cartesian (x, y)
- inline void fwd(geographic_type& lp_lon, geographic_type& lp_lat, cartesian_type& xy_x, cartesian_type& xy_y) const
+ inline void fwd(Parameters const& , T const& lp_lon, T const& lp_lat, T& xy_x, T& xy_y) const
{
int i;
- CalculationType dphi;
+ T dphi;
i = int_floor((dphi = fabs(lp_lat)) * C1);
- if (i < 0)
- BOOST_THROW_EXCEPTION( projection_exception(-20) );
- if (i >= NODES) i = NODES - 1;
- dphi = geometry::math::r2d<CalculationType>() * (dphi - RC1 * i);
- xy_x = V(X<CalculationType>()[i], dphi) * FXC * lp_lon;
- xy_y = V(Y<CalculationType>()[i], dphi) * FYC;
+ if (i < 0) {
+ BOOST_THROW_EXCEPTION( projection_exception(error_tolerance_condition) );
+ }
+ if (i >= n_nodes) i = n_nodes - 1;
+ dphi = geometry::math::r2d<T>() * (dphi - RC1 * i);
+ xy_x = v(coefs_x<T>()[i], dphi) * FXC * lp_lon;
+ xy_y = v(coefs_y<T>()[i], dphi) * FYC;
if (lp_lat < 0.) xy_y = -xy_y;
}
// INVERSE(s_inverse) spheroid
// Project coordinates from cartesian (x, y) to geographic (lon, lat)
- inline void inv(cartesian_type& xy_x, cartesian_type& xy_y, geographic_type& lp_lon, geographic_type& lp_lat) const
+ inline void inv(Parameters const& , T const& xy_x, T const& xy_y, T& lp_lon, T& lp_lat) const
{
- static const CalculationType HALFPI = detail::HALFPI<CalculationType>();
- const COEFS<CalculationType> * X = robin::X<CalculationType>();
- const COEFS<CalculationType> * Y = robin::Y<CalculationType>();
+ static const T half_pi = detail::half_pi<T>();
+ const coefs<T> * coefs_x = robin::coefs_x<T>();
+ const coefs<T> * coefs_y = robin::coefs_y<T>();
int i;
- CalculationType t, t1;
- COEFS<CalculationType> T;
+ T t, t1;
+ coefs<T> coefs_t;
+ int iters;
lp_lon = xy_x / FXC;
lp_lat = fabs(xy_y / FYC);
if (lp_lat >= 1.) { /* simple pathologic cases */
- if (lp_lat > ONEEPS)
- BOOST_THROW_EXCEPTION( projection_exception(-20) );
- else {
- lp_lat = xy_y < 0. ? -HALFPI : HALFPI;
- lp_lon /= X[NODES].c0;
+ if (lp_lat > one_plus_eps) {
+ BOOST_THROW_EXCEPTION( projection_exception(error_tolerance_condition) );
+ } else {
+ lp_lat = xy_y < 0. ? -half_pi : half_pi;
+ lp_lon /= coefs_x[n_nodes].c0;
}
} else { /* general problem */
/* in Y space, reduce to table interval */
- i = int_floor(lp_lat * NODES);
- if( i < 0 || i >= NODES )
- BOOST_THROW_EXCEPTION( projection_exception(-20) );
+ i = int_floor(lp_lat * n_nodes);
+ if( i < 0 || i >= n_nodes ) {
+ BOOST_THROW_EXCEPTION( projection_exception(error_tolerance_condition) );
+ }
for (;;) {
- if (Y[i].c0 > lp_lat) --i;
- else if (Y[i+1].c0 <= lp_lat) ++i;
+ if (coefs_y[i].c0 > lp_lat) --i;
+ else if (coefs_y[i+1].c0 <= lp_lat) ++i;
else break;
}
- T = Y[i];
+ coefs_t = coefs_y[i];
/* first guess, linear interp */
- t = 5. * (lp_lat - T.c0)/(Y[i+1].c0 - T.c0);
+ t = 5. * (lp_lat - coefs_t.c0)/(coefs_y[i+1].c0 - coefs_t.c0);
/* make into root */
- T.c0 -= lp_lat;
- for (;;) { /* Newton-Raphson reduction */
- t -= t1 = V(T,t) / DV(T,t);
- if (fabs(t1) < EPS)
+ coefs_t.c0 = (T)(coefs_t.c0 - lp_lat);
+ for (iters = max_iter; iters ; --iters) { /* Newton-Raphson */
+ t -= t1 = v(coefs_t,t) / dv(coefs_t,t);
+ if (fabs(t1) < epsilon)
break;
}
- lp_lat = (5 * i + t) * geometry::math::d2r<CalculationType>();
+ if( iters == 0 )
+ BOOST_THROW_EXCEPTION( projection_exception(error_non_convergent) );
+ lp_lat = (5 * i + t) * geometry::math::d2r<T>();
if (xy_y < 0.) lp_lat = -lp_lat;
- lp_lon /= V(X[i], t);
+ lp_lon /= v(coefs_x[i], t);
}
}
\par Example
\image html ex_robin.gif
*/
- template <typename CalculationType, typename Parameters>
- struct robin_spheroid : public detail::robin::base_robin_spheroid<CalculationType, Parameters>
+ template <typename T, typename Parameters>
+ struct robin_spheroid : public detail::robin::base_robin_spheroid<T, Parameters>
{
- inline robin_spheroid(const Parameters& par) : detail::robin::base_robin_spheroid<CalculationType, Parameters>(par)
+ template <typename Params>
+ inline robin_spheroid(Params const& , Parameters & par)
{
- detail::robin::setup_robin(this->m_par);
+ detail::robin::setup_robin(par);
}
};
{
// Static projection
- BOOST_GEOMETRY_PROJECTIONS_DETAIL_STATIC_PROJECTION(srs::par4::robin, robin_spheroid, robin_spheroid)
+ BOOST_GEOMETRY_PROJECTIONS_DETAIL_STATIC_PROJECTION_FI(srs::spar::proj_robin, robin_spheroid)
// Factory entry(s)
- template <typename CalculationType, typename Parameters>
- class robin_entry : public detail::factory_entry<CalculationType, Parameters>
- {
- public :
- virtual base_v<CalculationType, Parameters>* create_new(const Parameters& par) const
- {
- return new base_v_fi<robin_spheroid<CalculationType, Parameters>, CalculationType, Parameters>(par);
- }
- };
+ BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_ENTRY_FI(robin_entry, robin_spheroid)
- template <typename CalculationType, typename Parameters>
- inline void robin_init(detail::base_factory<CalculationType, Parameters>& factory)
+ BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_INIT_BEGIN(robin_init)
{
- factory.add_to_factory("robin", new robin_entry<CalculationType, Parameters>);
+ BOOST_GEOMETRY_PROJECTIONS_DETAIL_FACTORY_INIT_ENTRY(robin, robin_entry)
}
} // namespace detail
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