open3d.geometry.TetraMesh¶

class open3d.geometry.TetraMesh¶

TetraMesh class. Tetra mesh contains vertices and tetrahedra represented by the indices to the vertices.

class Type¶

Enum class for Geometry types.

HalfEdgeTriangleMesh = Type.HalfEdgeTriangleMesh¶

Image = Type.Image¶

LineSet = Type.LineSet¶

PointCloud = Type.PointCloud¶

RGBDImage = Type.RGBDImage¶

TetraMesh = Type.TetraMesh¶

TriangleMesh = Type.TriangleMesh¶

Unspecified = Type.Unspecified¶

VoxelGrid = Type.VoxelGrid¶

__init__(*args, **kwargs)¶

Overloaded function.

__init__(self: open3d.open3d_pybind.geometry.TetraMesh) -> None

Default constructor

__init__(self: open3d.open3d_pybind.geometry.TetraMesh, arg0: open3d.open3d_pybind.geometry.TetraMesh) -> None

Copy constructor

__init__(self: open3d.open3d_pybind.geometry.TetraMesh, vertices: open3d.open3d_pybind.utility.Vector3dVector, tetras: open3d.open3d_pybind.utility.Vector4iVector) -> None

Create a tetrahedra mesh from vertices and tetra indices

clear(self)¶

Clear all elements in the geometry.

Returns: open3d.geometry.Geometry

compute_convex_hull(self)¶

Computes the convex hull of the triangle mesh.

Returns: Tuple[open3d.geometry.TriangleMesh, List[int]]

static create_from_point_cloud(point_cloud)¶

Function to create a tetrahedral mesh from a point cloud.

Parameters: point_cloud (open3d.geometry.PointCloud) – A PointCloud.
Returns: Tuple[open3d.geometry.TetraMesh, List[int]]

dimension(self)¶

Returns whether the geometry is 2D or 3D.

Returns: int

extract_triangle_mesh(self, values, level)¶

Function that generates a triangle mesh of the specified iso-surface.

Parameters

values (open3d.utility.DoubleVector) – Vector with a scalar value for each vertex in the tetra mesh
level (float) – A scalar which defines the level-set to extract

Returns

open3d.geometry.TriangleMesh

get_axis_aligned_bounding_box(self)¶

Returns an axis-aligned bounding box of the geometry.

Returns: open3d.geometry.AxisAlignedBoundingBox

get_center(self)¶

Returns the center of the geometry coordinates.

Returns: numpy.ndarray[float64[3, 1]]

get_geometry_type(self)¶

Returns one of registered geometry types.

Returns: open3d.geometry.Geometry.GeometryType

get_max_bound(self)¶

Returns max bounds for geometry coordinates.

Returns: numpy.ndarray[float64[3, 1]]

get_min_bound(self)¶

Returns min bounds for geometry coordinates.

Returns: numpy.ndarray[float64[3, 1]]

get_oriented_bounding_box(self)¶

Returns an oriented bounding box of the geometry.

Returns: open3d.geometry.OrientedBoundingBox

static get_rotation_matrix_from_axis_angle(rotation: numpy.ndarray[float64[3, 1]]) → numpy.ndarray[float64[3, 3]]¶

static get_rotation_matrix_from_quaternion(rotation: numpy.ndarray[float64[4, 1]]) → numpy.ndarray[float64[3, 3]]¶

static get_rotation_matrix_from_xyz(rotation: numpy.ndarray[float64[3, 1]]) → numpy.ndarray[float64[3, 3]]¶

static get_rotation_matrix_from_xzy(rotation: numpy.ndarray[float64[3, 1]]) → numpy.ndarray[float64[3, 3]]¶

static get_rotation_matrix_from_yxz(rotation: numpy.ndarray[float64[3, 1]]) → numpy.ndarray[float64[3, 3]]¶

static get_rotation_matrix_from_yzx(rotation: numpy.ndarray[float64[3, 1]]) → numpy.ndarray[float64[3, 3]]¶

static get_rotation_matrix_from_zxy(rotation: numpy.ndarray[float64[3, 1]]) → numpy.ndarray[float64[3, 3]]¶

static get_rotation_matrix_from_zyx(rotation: numpy.ndarray[float64[3, 1]]) → numpy.ndarray[float64[3, 3]]¶

has_tetras(self)¶

Returns True if the mesh contains tetras.

Returns: bool

has_vertex_colors(self)¶

Returns True if the mesh contains vertex colors.

Returns: bool

has_vertex_normals(self)¶

Returns True if the mesh contains vertex normals.

Returns: bool

has_vertices(self)¶

Returns True if the mesh contains vertices.

Returns: bool

is_empty(self)¶

Returns True iff the geometry is empty.

Returns: bool

normalize_normals(self)¶

Normalize vertex normals to length 1.

Returns: open3d.geometry.MeshBase

paint_uniform_color(self, color)¶

Assigns each vertex in the MeshBase the same color.

Parameters: color (numpy.ndarray[float64[3, 1]]) – RGB colors of vertices.
Returns: open3d.geometry.MeshBase

remove_degenerate_tetras(self)¶

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.

Returns: open3d.geometry.TetraMesh

remove_duplicated_tetras(self)¶

Function that removes duplicated tetras, i.e., removes tetras that reference the same four vertices, independent of their order.

Returns: open3d.geometry.TetraMesh

remove_duplicated_vertices(self)¶

Function that removes duplicated vertices, i.e., vertices that have identical coordinates.

Returns: open3d.geometry.TetraMesh

remove_unreferenced_vertices(self)¶

This function removes vertices from the tetra mesh that are not referenced in any tetra of the mesh.

Returns: open3d.geometry.TetraMesh

rotate(self, R, center)¶

Apply rotation to the geometry coordinates and normals.

Parameters

R (numpy.ndarray[float64[3, 3]]) – The rotation matrix
center (numpy.ndarray[float64[3, 1]]) – Rotation center used for transformation

Returns

open3d.geometry.Geometry3D

TetraMesh.scale(scale, center, scale, center)

Apply scaling to the geometry coordinates.

Parameters

scale (float) – The scale parameter that is multiplied to the points/vertices of the geometry
center (numpy.ndarray[float64[3, 1]]) – Scale center used for transformation
scale – The scale parameter that is multiplied to the points/vertices of the geometry
center – Scale center used for transformation

Returns

open3d.geometry.Geometry3D

transform(self, arg0)¶

Apply transformation (4x4 matrix) to the geometry coordinates.

Parameters: arg0 (numpy.ndarray[float64[4, 4]]) –
Returns: open3d.geometry.Geometry3D

translate(self, translation, relative=True)¶

Apply translation to the geometry coordinates.

Parameters

translation (numpy.ndarray[float64[3, 1]]) – A 3D vector to transform the geometry
relative (bool, optional, default=True) – If true, the translation vector is directly added to the geometry coordinates. Otherwise, the center is moved to the translation vector.

Returns

open3d.geometry.Geometry3D

HalfEdgeTriangleMesh = Type.HalfEdgeTriangleMesh¶

Image = Type.Image¶

LineSet = Type.LineSet¶

PointCloud = Type.PointCloud¶

RGBDImage = Type.RGBDImage¶

TetraMesh = Type.TetraMesh¶

TriangleMesh = Type.TriangleMesh¶

Unspecified = Type.Unspecified¶

VoxelGrid = Type.VoxelGrid¶

property tetras¶

List of tetras denoted by the index of points forming the tetra.

Type: int64 array of shape (num_tetras, 4), use numpy.asarray() to access data

property vertex_colors¶

RGB colors of vertices.

Type: float64 array of shape (num_vertices, 3), range [0, 1] , use numpy.asarray() to access data

property vertex_normals¶

Vertex normals.

Type: float64 array of shape (num_vertices, 3), use numpy.asarray() to access data

property vertices¶

Vertex coordinates.

Type: float64 array of shape (num_vertices, 3), use numpy.asarray() to access data