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Make dolfinx.mesh.Mesh.input_global_indices a numpy array #3069

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Feb 26, 2024
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Make dolfinx.mesh.Mesh.input_global_indices a numpy array #3069

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12 changes: 10 additions & 2 deletions python/dolfinx/wrappers/mesh.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -178,8 +178,16 @@ void declare_mesh(nb::module_& m, std::string type)
.def_prop_ro(
"cmap", [](dolfinx::mesh::Geometry<T>& self) { return self.cmap(); },
"The coordinate map")
.def_prop_ro("input_global_indices",
&dolfinx::mesh::Geometry<T>::input_global_indices);
.def_prop_ro(
"input_global_indices",
[](const dolfinx::mesh::Geometry<T>& self)
{
const std::vector<std::int64_t>& id_to_global
= self.input_global_indices();
return nb::ndarray<const std::int64_t, nb::numpy>(
id_to_global.data(), {id_to_global.size()});
},
nb::rv_policy::reference_internal);

std::string pyclass_mesh_name = std::string("Mesh_") + type;
nb::class_<dolfinx::mesh::Mesh<T>>(m, pyclass_mesh_name.c_str(),
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