random.cc File Reference

#include <pybind11/pybind11.h>
#include <pybind11/stl.h>
#include "lsst/afw/image/Image.h"
#include "lsst/afw/math/Random.h"

Go to the source code of this file.

Functions
template<typename ImageT >
void	declareRandomImage (py::module &mod)
	PYBIND11_MODULE (random, mod)

Function Documentation

declareRandomImage()

template<typename ImageT >

void declareRandomImage

(

py::module &

mod

)

Definition at line 36 of file random.cc.

                                       {
    mod.def("randomUniformImage", (void (*)(ImageT *, Random &))randomUniformImage<ImageT>);
    mod.def("randomUniformPosImage", (void (*)(ImageT *, Random &))randomUniformPosImage<ImageT>);
    mod.def("randomUniformIntImage",
            (void (*)(ImageT *, Random &, unsigned long))randomUniformIntImage<ImageT>);
    mod.def("randomFlatImage",
            (void (*)(ImageT *, Random &, double const, double const))randomFlatImage<ImageT>);
    mod.def("randomGaussianImage", (void (*)(ImageT *, Random &))randomGaussianImage<ImageT>);
    mod.def("randomChisqImage", (void (*)(ImageT *, Random &, double const))randomChisqImage<ImageT>);
    mod.def("randomPoissonImage", (void (*)(ImageT *, Random &, double const))randomPoissonImage<ImageT>);
}

PYBIND11_MODULE()

PYBIND11_MODULE	(	random	,
		mod
	)

Definition at line 48 of file random.cc.

                             {
    py::class_<Random> clsRandom(mod, "Random");

    /* Member types and enums */
    py::enum_<Random::Algorithm>(clsRandom, "Algorithm")
            .value("MT19937", Random::Algorithm::MT19937)
            .value("RANLXS0", Random::Algorithm::RANLXS0)
            .value("RANLXS1", Random::Algorithm::RANLXS1)
            .value("RANLXS2", Random::Algorithm::RANLXS2)
            .value("RANLXD1", Random::Algorithm::RANLXD1)
            .value("RANLXD2", Random::Algorithm::RANLXD2)
            .value("RANLUX", Random::Algorithm::RANLUX)
            .value("RANLUX389", Random::Algorithm::RANLUX389)
            .value("CMRG", Random::Algorithm::CMRG)
            .value("MRG", Random::Algorithm::MRG)
            .value("TAUS", Random::Algorithm::TAUS)
            .value("TAUS2", Random::Algorithm::TAUS2)
            .value("GFSR4", Random::Algorithm::GFSR4)
            .value("NUM_ALGORITHMS", Random::Algorithm::NUM_ALGORITHMS)
            .export_values();

    /* Constructors */
    clsRandom.def(py::init<Random::Algorithm, unsigned long>(), "algorithm"_a = Random::Algorithm::MT19937,
                  "seed"_a = 1);
    clsRandom.def(py::init<std::string const &, unsigned long>(), "algorithm"_a, "seed"_a = 1);

    /* Members */
    clsRandom.def("deepCopy", &Random::deepCopy);
    clsRandom.def("getAlgorithm", &Random::getAlgorithm);
    clsRandom.def("getAlgorithmName", &Random::getAlgorithmName);
    clsRandom.def_static("getAlgorithmNames", &Random::getAlgorithmNames);
    clsRandom.def("getSeed", &Random::getSeed);
    clsRandom.def("uniform", &Random::uniform);
    clsRandom.def("uniformPos", &Random::uniformPos);
    clsRandom.def("uniformInt", &Random::uniformInt);
    clsRandom.def("flat", &Random::flat);
    clsRandom.def("gaussian", &Random::gaussian);
    clsRandom.def("chisq", &Random::chisq);
    clsRandom.def("poisson", &Random::poisson);

    // getState and setState are special, their std::string cannot
    // be converted to a Python string (needs to go to bytes instead)
    // thus use the same solution as employed with Swig
    clsRandom.def("getState", [](Random &self) -> py::object {
        std::string state = self.getState();
        return py::reinterpret_steal<py::object>(PyBytes_FromStringAndSize(state.data(), state.size()));
    });
    clsRandom.def("setState", [](Random &self, py::bytes const &state) { self.setState(state); });

    /* Module level */
    declareRandomImage<lsst::afw::image::Image<double>>(mod);
    declareRandomImage<lsst::afw::image::Image<float>>(mod);
}