boundary_chang…

pybind11_akantu.cc
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			/* -------------------------------------------------------------------------- */
			#include "pybind11_akantu.hh"
			/* -------------------------------------------------------------------------- */
			#include <pybind11/numpy.h>
			#include <pybind11/pybind11.h>
			/* -------------------------------------------------------------------------- */

			namespace py = pybind11;

			namespace akantu {

			PYBIND11_MODULE(aka_test, m) {
			m.doc() = "Module for the tests of akantu";

			py::class_<ArrayProxy<Real>>(m, "ArrayProxy", py::buffer_protocol())
			.def_buffer([](ArrayProxy<Real> & a) {
			return py::buffer_info(
			a.storage(), /* Pointer to buffer */
			sizeof(Real), /* Size of one scalar */
			py::format_descriptor<Real>::format(), /* Python struct-style
			format descriptor */
			2, /* Number of dimensions */
			{a.size(), a.getNbComponent()}, /* Buffer dimensions */
			{sizeof(Real) *
			a.getNbComponent(), /* Strides (in bytes) for each index */
			sizeof(Real)});
			})
			.def(py::init([](py::array & n) {
			/* Request a buffer descriptor from Python */
			py::buffer_info info = n.request();

			/* Some sanity checks ... */
			if (info.format != py::format_descriptor<Real>::format())
			throw std::runtime_error(
			"Incompatible format: expected a double array!");

			if (info.ndim != 2)
			throw std::runtime_error("Incompatible buffer dimension!");

			return std::make_unique<ArrayProxy<Real>>(static_cast<Real *>(info.ptr),
			info.shape[0], info.shape[1]);
			}));
			}
			} // namespace akantu