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// ----------------------------------------------------------------------------
// - Open3D: www.open3d.org -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2024 www.open3d.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
#include "open3d/geometry/TetraMesh.h"
#include "open3d/geometry/PointCloud.h"
#include "pybind/docstring.h"
#include "pybind/geometry/geometry.h"
#include "pybind/geometry/geometry_trampoline.h"
namespace open3d {
namespace geometry {
void pybind_tetramesh_declarations(py::module &m) {
py::class_<TetraMesh, PyGeometry3D<TetraMesh>, std::shared_ptr<TetraMesh>,
MeshBase>
trianglemesh(m, "TetraMesh",
"TetraMesh class. Tetra mesh contains vertices "
"and tetrahedra represented by the indices to the "
"vertices.");
}
void pybind_tetramesh_definitions(py::module &m) {
auto tetramesh =
static_cast<py::class_<TetraMesh, PyGeometry3D<TetraMesh>,
std::shared_ptr<TetraMesh>, MeshBase>>(
m.attr("TetraMesh"));
py::detail::bind_default_constructor<TetraMesh>(tetramesh);
py::detail::bind_copy_functions<TetraMesh>(tetramesh);
tetramesh
.def(py::init<const std::vector<Eigen::Vector3d> &,
const std::vector<Eigen::Vector4i,
utility::Vector4i_allocator> &>(),
"Create a tetrahedra mesh from vertices and tetra indices",
"vertices"_a, "tetras"_a)
.def("__repr__",
[](const TetraMesh &mesh) {
return std::string("TetraMesh with ") +
std::to_string(mesh.vertices_.size()) +
" points and " +
std::to_string(mesh.tetras_.size()) +
" tetrahedra.";
})
.def(py::self + py::self)
.def(py::self += py::self)
.def("remove_duplicated_vertices",
&TetraMesh::RemoveDuplicatedVertices,
"Function that removes duplicated vertices, i.e., vertices "
"that have identical coordinates.")
.def("remove_duplicated_tetras", &TetraMesh::RemoveDuplicatedTetras,
"Function that removes duplicated tetras, i.e., removes "
"tetras that reference the same four vertices, "
"independent of their order.")
.def("remove_unreferenced_vertices",
&TetraMesh::RemoveUnreferencedVertices,
"This function removes vertices from the tetra mesh that "
"are not referenced in any tetra of the mesh.")
.def("remove_degenerate_tetras", &TetraMesh::RemoveDegenerateTetras,
"Function that removes degenerate tetras, i.e., tetras "
"that references a single vertex multiple times in a single "
"tetra. They are usually the product of removing "
"duplicated vertices.")
.def("has_vertices", &TetraMesh::HasVertices,
"Returns ``True`` if the mesh contains vertices.")
.def("has_tetras", &TetraMesh::HasTetras,
"Returns ``True`` if the mesh contains tetras.")
.def("extract_triangle_mesh", &TetraMesh::ExtractTriangleMesh,
"Function that generates a triangle mesh of the specified "
"iso-surface.",
"values"_a, "level"_a)
.def_static(
"create_from_point_cloud", &TetraMesh::CreateFromPointCloud,
"Function to create a tetrahedral mesh from a point cloud.",
"point_cloud"_a)
.def_readwrite("vertices", &TetraMesh::vertices_,
"``float64`` array of shape ``(num_vertices, 3)``, "
"use ``numpy.asarray()`` to access data: Vertex "
"coordinates.")
.def_readwrite("tetras", &TetraMesh::tetras_,
"``int64`` array of shape ``(num_tetras, 4)``, use "
"``numpy.asarray()`` to access data: List of "
"tetras denoted by the index of points forming "
"the tetra.");
docstring::ClassMethodDocInject(m, "TetraMesh", "has_tetras");
docstring::ClassMethodDocInject(m, "TetraMesh", "has_vertices");
docstring::ClassMethodDocInject(m, "TetraMesh",
"remove_duplicated_vertices");
docstring::ClassMethodDocInject(m, "TetraMesh", "remove_duplicated_tetras");
docstring::ClassMethodDocInject(m, "TetraMesh",
"remove_unreferenced_vertices");
docstring::ClassMethodDocInject(m, "TetraMesh", "remove_degenerate_tetras");
docstring::ClassMethodDocInject(
m, "TetraMesh", "extract_triangle_mesh",
{{"values",
"Vector with a scalar value for each vertex in the tetra mesh"},
{"level", "A scalar which defines the level-set to extract"}});
docstring::ClassMethodDocInject(m, "TetraMesh", "create_from_point_cloud",
{{"point_cloud", "A PointCloud."}});
}
} // namespace geometry
} // namespace open3d
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