_compoundRegion.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 "pybind11/stl.h"
 
#include "lsst/sphgeom/python.h"
#include "lsst/sphgeom/python/utils.h"
#include "lsst/sphgeom/CompoundRegion.h"
 
namespace py = pybind11;
using namespace pybind11::literals;
 
namespace lsst {
namespace sphgeom {
 
namespace {
 
py::str _repr(const char *format, CompoundRegion const &self) {
    py::object first = py::cast(self.getOperand(0), py::return_value_policy::reference);
    py::object second = py::cast(self.getOperand(1), py::return_value_policy::reference);
    return py::str(format).format(first, second);
}
 
}  // namespace
 
template <>
void defineClass(py::class_<CompoundRegion, std::unique_ptr<CompoundRegion>, Region> &cls) {
    cls.def(
        "cloneOperand",
        [](CompoundRegion const &self, std::ptrdiff_t n) {
            return self.getOperand(python::convertIndex(2, n)).clone();
        }
    );
}
 
template <>
void defineClass(py::class_<UnionRegion, std::unique_ptr<UnionRegion>, CompoundRegion> &cls) {
    cls.attr("TYPE_CODE") = py::int_(UnionRegion::TYPE_CODE);
    cls.def(py::init<Region const &, Region const &>());
    cls.def(py::pickle(&python::encode, &python::decode<UnionRegion>));
    cls.def("__repr__", [](CompoundRegion const &self) { return _repr("UnionRegion({!r}, {!r})", self); });
}
 
template <>
void defineClass(py::class_<IntersectionRegion, std::unique_ptr<IntersectionRegion>, CompoundRegion> &cls) {
    cls.attr("TYPE_CODE") = py::int_(IntersectionRegion::TYPE_CODE);
    cls.def(py::init<Region const &, Region const &>());
    cls.def(py::pickle(&python::encode, &python::decode<IntersectionRegion>));
    cls.def("__repr__", [](CompoundRegion const &self) { return _repr("IntersectionRegion({!r}, {!r})", self); });
}
 
}  // namespace sphgeom
}  // namespace lsst