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tamaas/python/wrap/surface.cpp
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surface.cpp
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/*
* SPDX-License-Indentifier: AGPL-3.0-or-later
*
* Copyright (©) 2016-2021 EPFL (École Polytechnique Fédérale de Lausanne),
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#include "isopowerlaw.hh"
#include "regularized_powerlaw.hh"
#include "surface_generator_filter.hh"
#include "surface_generator_random_phase.hh"
#include "wrap.hh"
#include <pybind11/stl.h>
/* -------------------------------------------------------------------------- */
namespace tamaas {
/* -------------------------------------------------------------------------- */
namespace wrap {
using namespace py::literals;
/* -------------------------------------------------------------------------- */
template <UInt dim>
class PyFilter : public Filter<dim> {
public:
using Filter<dim>::Filter;
// Overriding pure virtual functions
void
computeFilter(GridHermitian<Real, dim>& filter_coefficients) const override {
PYBIND11_OVERLOAD_PURE(void, Filter<dim>, computeFilter,
filter_coefficients);
}
};
template <UInt dim>
void wrapFilter(py::module& mod) {
auto name = makeDimensionName("Filter", dim);
py::class_<Filter<dim>, std::shared_ptr<Filter<dim>>, PyFilter<dim>>(
mod, name.c_str(), "Mother class for Fourier filter objects")
.def(py::init<>())
.def("computeFilter",
(void (Filter<dim>::*)(GridHermitian<Real, dim>&) const) &
Filter<dim>::computeFilter,
"Compute the Fourier coefficient of the surface");
}
/* -------------------------------------------------------------------------- */
template <UInt dim>
void wrapIsopowerlaw(py::module& mod) {
std::string name = makeDimensionName("Isopowerlaw", dim);
py::class_<Isopowerlaw<dim>, Filter<dim>, std::shared_ptr<Isopowerlaw<dim>>>(
mod, name.c_str(), "Isotropic powerlaw spectrum with a rolloff plateau")
.def(py::init<>())
.def_property("q0", &Isopowerlaw<dim>::getQ0, &Isopowerlaw<dim>::setQ0,
"Long wavelength cutoff")
.def_property("q1", &Isopowerlaw<dim>::getQ1, &Isopowerlaw<dim>::setQ1,
"Rolloff wavelength")
.def_property("q2", &Isopowerlaw<dim>::getQ2, &Isopowerlaw<dim>::setQ2,
"Short wavelength cutoff")
.def_property("hurst", &Isopowerlaw<dim>::getHurst,
&Isopowerlaw<dim>::setHurst, "Hurst exponent")
.def("rmsHeights", &Isopowerlaw<dim>::rmsHeights,
"Theoretical RMS of heights")
.def("moments", &Isopowerlaw<dim>::moments,
"Theoretical first 3 moments of spectrum")
.def("alpha", &Isopowerlaw<dim>::alpha, "Nayak's bandwidth parameter")
.def("rmsSlopes", &Isopowerlaw<dim>::rmsSlopes,
"Theoretical RMS of slopes");
name = makeDimensionName("RegularizedPowerlaw", dim);
py::class_<RegularizedPowerlaw<dim>, Filter<dim>,
std::shared_ptr<RegularizedPowerlaw<dim>>>(
mod, name.c_str(),
"Isotropic regularized powerlaw with a plateau extending to the size of "
"the system")
.def(py::init<>())
.def_property("q1", &RegularizedPowerlaw<dim>::getQ1,
&RegularizedPowerlaw<dim>::setQ1, "Rolloff wavelength")
.def_property("q2", &RegularizedPowerlaw<dim>::getQ2,
&RegularizedPowerlaw<dim>::setQ2, "Short wavelength cutoff")
.def_property("hurst", &RegularizedPowerlaw<dim>::getHurst,
&RegularizedPowerlaw<dim>::setHurst, "Hurst exponent");
}
/* -------------------------------------------------------------------------- */
template <UInt dim>
void wrapSurfaceGenerators(py::module& mod) {
std::string generator_name = makeDimensionName("SurfaceGenerator", dim);
py::class_<SurfaceGenerator<dim>>(mod, generator_name.c_str())
.def("buildSurface", &SurfaceGenerator<dim>::buildSurface,
py::return_value_policy::reference_internal,
"Generate a surface and return a reference to it")
.def("setSizes",
[](SurfaceGenerator<dim>& m, std::array<UInt, dim> s) {
TAMAAS_DEPRECATE("setSizes()", "the shape property");
m.setSizes(std::move(s));
})
.def("setRandomSeed",
[](SurfaceGenerator<dim>& m, long s) {
TAMAAS_DEPRECATE("setRandomSeed()", "the random_seed property");
m.setRandomSeed(s);
})
.def_property("random_seed", &SurfaceGenerator<dim>::getRandomSeed,
&SurfaceGenerator<dim>::setRandomSeed,
"Random generator seed")
.def_property("shape", &SurfaceGenerator<dim>::getSizes,
py::overload_cast<std::array<UInt, dim>>(
&SurfaceGenerator<dim>::setSizes),
"Global shape of surfaces");
std::string filter_name = makeDimensionName("SurfaceGeneratorFilter", dim);
py::class_<SurfaceGeneratorFilter<dim>, SurfaceGenerator<dim>>(
mod, filter_name.c_str(),
"Generates a rough surface with Gaussian noise in the PSD")
.def(py::init<>(), "Default constructor")
.def(py::init<std::array<UInt, dim>>(),
"Initialize with global surface shape")
.def("setFilter",
[](SurfaceGeneratorFilter<dim>& m, std::shared_ptr<Filter<dim>> s) {
TAMAAS_DEPRECATE("setFilter()", "the spectrum property");
m.setSpectrum(std::move(s));
},
"Set PSD filter", "filter"_a)
.def("setSpectrum",
[](SurfaceGeneratorFilter<dim>& m, std::shared_ptr<Filter<dim>> s) {
TAMAAS_DEPRECATE("setSpectrum()", "the spectrum property");
m.setSpectrum(std::move(s));
},
"Set PSD filter", "filter"_a)
.def_property("spectrum", &SurfaceGeneratorFilter<dim>::getSpectrum,
&SurfaceGeneratorFilter<dim>::setSpectrum,
"Power spectrum object");
std::string random_name =
makeDimensionName("SurfaceGeneratorRandomPhase", dim);
py::class_<SurfaceGeneratorRandomPhase<dim>, SurfaceGeneratorFilter<dim>>(
mod, random_name.c_str(),
"Generates a rough surface with uniformly distributed phases and exact "
"prescribed PSD")
.def(py::init<>(), "Default constructor")
.def(py::init<std::array<UInt, dim>>(),
"Initialize with global surface shape");
}
/* -------------------------------------------------------------------------- */
void wrapSurface(py::module& mod) {
wrapFilter<1>(mod);
wrapFilter<2>(mod);
wrapIsopowerlaw<1>(mod);
wrapIsopowerlaw<2>(mod);
wrapSurfaceGenerators<1>(mod);
wrapSurfaceGenerators<2>(mod);
}
} // namespace wrap
/* -------------------------------------------------------------------------- */
} // namespace tamaas
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