_psf.cc

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/*
 * This file is part of afw.
 *
 * Developed for the LSST Data Management System.
 * This product includes software developed by the LSST Project
 * (https://www.lsst.org).
 * See the COPYRIGHT file at the top-level directory of this distribution
 * for details of code ownership.
 *
 * 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 GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
#include <memory>
 
#include <pybind11/pybind11.h>
 
#include "lsst/utils/python.h"
#include "lsst/utils/python/PySharedPtr.h"
 
#include "lsst/geom/Point.h"
#include "lsst/afw/image/Color.h"
#include "lsst/afw/table/io/python.h"  // for addPersistableMethods
#include "lsst/afw/typehandling/Storable.h"
#include "lsst/afw/detection/Psf.h"
#include "lsst/afw/detection/python.h"
 
namespace py = pybind11;
using namespace pybind11::literals;
 
using lsst::utils::python::PySharedPtr;
 
namespace lsst {
namespace afw {
namespace detection {
 
namespace {
auto const NullPoint = lsst::geom::Point2D(std::numeric_limits<double>::quiet_NaN());
}
 
void wrapPsf(utils::python::WrapperCollection& wrappers) {
    wrappers.addInheritanceDependency("lsst.afw.typehandling");
    wrappers.addSignatureDependency("lsst.afw.geom.ellipses");
    wrappers.addSignatureDependency("lsst.afw.image");
    wrappers.addSignatureDependency("lsst.afw.fits");
 
    auto clsPsf = wrappers.wrapType(
            py::class_<Psf, PySharedPtr<Psf>, typehandling::Storable, PsfTrampoline<>>(
                wrappers.module, "Psf"
            ),
            [](auto& mod, auto& cls) {
                table::io::python::addPersistableMethods<Psf>(cls);
                cls.def(py::init<bool, size_t>(), "isFixed"_a=false, "capacity"_a=100);  // Constructor for pure-Python subclasses
                cls.def("clone", &Psf::clone);
                cls.def("resized", &Psf::resized, "width"_a, "height"_a);
                cls.def("computeImage", &Psf::computeImage, "position"_a = NullPoint,
                        "color"_a = image::Color(), "owner"_a = Psf::ImageOwnerEnum::COPY);
                cls.def("computeKernelImage", &Psf::computeKernelImage, "position"_a = NullPoint,
                        "color"_a = image::Color(), "owner"_a = Psf::ImageOwnerEnum::COPY);
                cls.def("computePeak", &Psf::computePeak, "position"_a = NullPoint,
                        "color"_a = image::Color());
                cls.def("computeApertureFlux", &Psf::computeApertureFlux, "radius"_a,
                        "position"_a = NullPoint, "color"_a = image::Color());
                cls.def("computeShape", &Psf::computeShape, "position"_a = NullPoint,
                        "color"_a = image::Color());
                cls.def("computeBBox", &Psf::computeBBox, "position"_a = NullPoint,
                        "color"_a = image::Color());
                cls.def("getLocalKernel", &Psf::getLocalKernel, "position"_a = NullPoint,
                        "color"_a = image::Color());
                cls.def("getAverageColor", &Psf::getAverageColor);
                cls.def("getAveragePosition", &Psf::getAveragePosition);
                cls.def_static("recenterKernelImage", &Psf::recenterKernelImage, "im"_a, "position"_a,
                               "warpAlgorithm"_a = "lanczos5", "warpBuffer"_a = 5);
                cls.def("getCacheCapacity", &Psf::getCacheCapacity);
                cls.def("setCacheCapacity", &Psf::setCacheCapacity);
            });
 
    wrappers.wrapType(py::enum_<Psf::ImageOwnerEnum>(clsPsf, "ImageOwnerEnum"), [](auto& mod, auto& enm) {
        enm.value("COPY", Psf::ImageOwnerEnum::COPY);
        enm.value("INTERNAL", Psf::ImageOwnerEnum::INTERNAL);
        enm.export_values();
    });
}
 
}  // namespace detection
}  // namespace afw
}  // namespace lsst