lonLat.cc

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/*
 * LSST Data Management System
 * See COPYRIGHT file at the top of the source tree.
 *
 * This product includes software developed by the
 * LSST Project (http://www.lsst.org/).
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the LSST License Statement and
 * the GNU General Public License along with this program.  If not,
 * see <https://www.lsstcorp.org/LegalNotices/>.
 */
#include "pybind11/pybind11.h"

#include <memory>

#include "lsst/sphgeom/LonLat.h"
#include "lsst/sphgeom/Vector3d.h"

namespace py = pybind11;
using namespace pybind11::literals;

namespace lsst {
namespace sphgeom {
namespace {

PYBIND11_MODULE(lonLat, mod) {
    py::class_<LonLat, std::shared_ptr<LonLat>> cls(mod, "LonLat");

    cls.def_static("fromDegrees", &LonLat::fromDegrees);
    cls.def_static("fromRadians", &LonLat::fromRadians);
    cls.def_static("latitudeOf", &LonLat::latitudeOf);
    cls.def_static("longitudeOf", &LonLat::longitudeOf);

    cls.def(py::init<>());
    cls.def(py::init<LonLat const &>());
    cls.def(py::init<NormalizedAngle, Angle>(), "lon"_a, "lat"_a);
    cls.def(py::init<Vector3d const &>(), "vector"_a);

    cls.def("__eq__", &LonLat::operator==, py::is_operator());
    cls.def("__nq__", &LonLat::operator!=, py::is_operator());

    cls.def("getLon", &LonLat::getLon);
    cls.def("getLat", &LonLat::getLat);

    cls.def("__len__", [](LonLat const &self) { return py::int_(2); });
    cls.def("__getitem__", [](LonLat const &self, py::object key) {
        auto t = py::make_tuple(self.getLon(), self.getLat());
        return t.attr("__getitem__")(key);
    });
    cls.def("__iter__", [](LonLat const &self) {
        auto t = py::make_tuple(self.getLon(), self.getLat());
        return t.attr("__iter__")();
    });

    cls.def("__str__", [](LonLat const &self) {
        return py::str("[{!s}, {!s}]")
                .format(self.getLon().asRadians(), self.getLat().asRadians());
    });
    cls.def("__repr__", [](LonLat const &self) {
        return py::str("LonLat.fromRadians({!r}, {!r})")
                .format(self.getLon().asRadians(), self.getLat().asRadians());
    });
    cls.def("__reduce__", [cls](LonLat const &self) {
        return py::make_tuple(cls,
                              py::make_tuple(self.getLon(), self.getLat()));
    });
}

}  // <anonymous>
}  // sphgeom
}  // lsst