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rGOOSEFEM/python/Matrix.hpp
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Matrix.hpp
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/* =================================================================================================
(c - GPLv3) T.W.J. de Geus (Tom) | tom@geus.me | www.geus.me | github.com/tdegeus/GooseFEM
================================================================================================= */
#include <Eigen/Eigen>
#include <GooseFEM/GooseFEM.h>
#include <pybind11/eigen.h>
#include <pybind11/pybind11.h>
#include <pyxtensor/pyxtensor.hpp>
namespace py = pybind11;
void init_Matrix(py::module& m)
{
py::class_<GooseFEM::Matrix>(m, "Matrix")
.def(
py::init<const xt::xtensor<size_t, 2>&, const xt::xtensor<size_t, 2>&>(),
"Sparse matrix",
py::arg("conn"),
py::arg("dofs"))
.def("nelem", &GooseFEM::Matrix::nelem, "Number of element")
.def("nne", &GooseFEM::Matrix::nne, "Number of nodes per element")
.def("nnode", &GooseFEM::Matrix::nnode, "Number of nodes")
.def("ndim", &GooseFEM::Matrix::ndim, "Number of dimensions")
.def("ndof", &GooseFEM::Matrix::ndof, "Number of degrees-of-freedom")
.def("dofs", &GooseFEM::Matrix::dofs, "Return degrees-of-freedom")
.def(
"assemble",
&GooseFEM::Matrix::assemble,
"Assemble matrix from 'elemmat",
py::arg("elemmat"))
.def(
"set",
&GooseFEM::Matrix::set,
"Overwrite with a dense (sub-) matrix",
py::arg("rows"),
py::arg("cols"),
py::arg("matrix"))
.def(
"add",
&GooseFEM::Matrix::add,
"Add a dense (sub-) matrix to the current matrix",
py::arg("rows"),
py::arg("cols"),
py::arg("matrix"))
.def("Todense", &GooseFEM::Matrix::Todense, "Return as dense matrix")
.def(
"Dot",
py::overload_cast<const xt::xtensor<double, 1>&>(&GooseFEM::Matrix::Dot, py::const_),
"Dot",
py::arg("x"))
.def(
"Dot",
py::overload_cast<const xt::xtensor<double, 2>&>(&GooseFEM::Matrix::Dot, py::const_),
"Dot",
py::arg("x"))
.def("__repr__", [](const GooseFEM::Matrix&) { return "<GooseFEM.Matrix>"; });
py::class_<GooseFEM::MatrixSolver<>>(m, "MatrixSolver")
.def(py::init<>(), "Sparse matrix solver")
.def(
"Solve",
py::overload_cast<GooseFEM::Matrix&, const xt::xtensor<double, 1>&>(
&GooseFEM::MatrixSolver<>::Solve),
"Solve",
py::arg("matrix"),
py::arg("b"))
.def(
"Solve",
py::overload_cast<GooseFEM::Matrix&, const xt::xtensor<double, 2>&>(
&GooseFEM::MatrixSolver<>::Solve),
"Solve",
py::arg("matrix"),
py::arg("b"))
.def("__repr__", [](const GooseFEM::MatrixSolver<>&) { return "<GooseFEM.MatrixSolver>"; });
}
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