#include <HalfEdgeTriangleMesh.h>

Inheritance diagram for open3d::geometry::HalfEdgeTriangleMesh:

Data Structures
class	HalfEdge

Public Member Functions
	HalfEdgeTriangleMesh ()

bool	ComputeHalfEdges ()

bool	HasHalfEdges () const
	True if half-edges have already been computed. More...

std::vector< int >	BoundaryHalfEdgesFromVertex (int vertex_index) const

std::vector< int >	BoundaryVerticesFromVertex (int vertex_index) const

std::vector< std::vector< int > >	GetBoundaries () const
	Returns a vector of boundaries. A boundary is a vector of vertices. More...

void	Clear () override
	Clear all data in HalfEdgeTriangleMesh. More...

void	RemoveDuplicatedVertices () override

void	RemoveDuplicatedTriangles () override

void	RemoveUnreferencedVertices () override

void	RemoveDegenerateTriangles () override

HalfEdgeTriangleMesh &	operator+= (const HalfEdgeTriangleMesh &mesh)

HalfEdgeTriangleMesh	operator+ (const HalfEdgeTriangleMesh &mesh) const

Public Member Functions inherited from open3d::geometry::TriangleMesh
	TriangleMesh ()

	~TriangleMesh () override

void	Clear () override

bool	IsEmpty () const override

Eigen::Vector3d	GetMinBound () const override

Eigen::Vector3d	GetMaxBound () const override

TriangleMesh &	Transform (const Eigen::Matrix4d &transformation) override

TriangleMesh &	Translate (const Eigen::Vector3d &translation) override

TriangleMesh &	Scale (const double scale, bool center=true) override

TriangleMesh &	Rotate (const Eigen::Vector3d &rotation, bool center=true, RotationType type=RotationType::XYZ) override

TriangleMesh &	operator+= (const TriangleMesh &mesh)

TriangleMesh	operator+ (const TriangleMesh &mesh) const

void	ComputeTriangleNormals (bool normalized=true)
	Function to compute triangle normals, usually called before rendering. More...

void	ComputeVertexNormals (bool normalized=true)
	Function to compute vertex normals, usually called before rendering. More...

void	ComputeAdjacencyList ()
	Function to compute adjacency list, call before adjacency list is needed. More...

virtual void	RemoveNonManifoldEdges ()

void	FilterSharpen (int number_of_iterations, double strength, FilterScope scope=FilterScope::All)

void	FilterSmoothSimple (int number_of_iterations, FilterScope scope=FilterScope::All)

void	FilterSmoothLaplacian (int number_of_iterations, double lambda, FilterScope scope=FilterScope::All)

void	FilterSmoothTaubin (int number_of_iterations, double lambda=0.5, double mu=-0.53, FilterScope scope=FilterScope::All)

bool	HasVertices () const

bool	HasTriangles () const

bool	HasVertexNormals () const

bool	HasVertexColors () const

bool	HasTriangleNormals () const

bool	HasAdjacencyList () const

void	NormalizeNormals ()

void	PaintUniformColor (const Eigen::Vector3d &color)
	Assigns each vertex in the TriangleMesh the same color. More...

int	EulerPoincareCharacteristic () const

std::vector< Eigen::Vector2i >	GetNonManifoldEdges (bool allow_boundary_edges=true) const

bool	IsEdgeManifold (bool allow_boundary_edges=true) const

std::vector< int >	GetNonManifoldVertices () const

bool	IsVertexManifold () const

std::vector< Eigen::Vector2i >	GetSelfIntersectingTriangles () const

bool	IsSelfIntersecting () const

bool	IsBoundingBoxIntersecting (const TriangleMesh &other) const

bool	IsIntersecting (const TriangleMesh &other) const

bool	IsOrientable () const

bool	OrientTriangles ()

std::unordered_map< Eigen::Vector2i, std::vector< int >, utility::hash_eigen::hash< Eigen::Vector2i > >	GetEdgeToTrianglesMap () const

double	GetTriangleArea (size_t triangle_idx) const

double	GetSurfaceArea () const

double	GetSurfaceArea (std::vector< double > &triangle_areas) const

Eigen::Vector4d	GetTrianglePlane (size_t triangle_idx) const

Public Member Functions inherited from open3d::geometry::Geometry3D
	~Geometry3D () override

Public Member Functions inherited from open3d::geometry::Geometry
virtual	~Geometry ()

GeometryType	GetGeometryType () const

int	Dimension () const

Data Fields
std::vector< HalfEdge >	half_edges_

std::vector< std::vector< int > >	ordered_half_edge_from_vertex_

Data Fields inherited from open3d::geometry::TriangleMesh
std::vector< Eigen::Vector3d >	vertices_

std::vector< Eigen::Vector3d >	vertex_normals_

std::vector< Eigen::Vector3d >	vertex_colors_

std::vector< Eigen::Vector3i >	triangles_

std::vector< Eigen::Vector3d >	triangle_normals_

std::vector< std::unordered_set< int > >	adjacency_list_

Protected Member Functions
	HalfEdgeTriangleMesh (Geometry::GeometryType type)

int	NextHalfEdgeFromVertex (int init_half_edge_index) const

int	NextHalfEdgeOnBoundary (int curr_half_edge_index) const

Protected Member Functions inherited from open3d::geometry::TriangleMesh
	TriangleMesh (Geometry::GeometryType type)

Protected Member Functions inherited from open3d::geometry::Geometry3D
	Geometry3D (GeometryType type)

Eigen::Matrix3d	GetRotationMatrix (const Eigen::Vector3d &rotation, RotationType type=RotationType::XYZ) const

Protected Member Functions inherited from open3d::geometry::Geometry
	Geometry (GeometryType type, int dimension)

Additional Inherited Members
Public Types inherited from open3d::geometry::TriangleMesh
enum	SimplificationContraction { SimplificationContraction::Average, SimplificationContraction::Quadric }

enum	FilterScope { FilterScope::All, FilterScope::Color, FilterScope::Normal, FilterScope::Vertex }

Public Types inherited from open3d::geometry::Geometry3D
enum	RotationType { RotationType::XYZ, RotationType::YZX, RotationType::ZXY, RotationType::XZY, RotationType::ZYX, RotationType::YXZ, RotationType::AxisAngle }

Public Types inherited from open3d::geometry::Geometry
enum	GeometryType { GeometryType::Unspecified = 0, GeometryType::PointCloud = 1, GeometryType::VoxelGrid = 2, GeometryType::Octree = 3, GeometryType::LineSet = 4, GeometryType::TriangleMesh = 5, GeometryType::HalfEdgeTriangleMesh = 6, GeometryType::Image = 7 }

Constructor & Destructor Documentation

◆ HalfEdgeTriangleMesh() [1/2]

open3d::geometry::HalfEdgeTriangleMesh::HalfEdgeTriangleMesh ( )

inline

◆ HalfEdgeTriangleMesh() [2/2]

open3d::geometry::HalfEdgeTriangleMesh::HalfEdgeTriangleMesh ( Geometry::GeometryType type )

inlineprotected

Member Function Documentation

◆ BoundaryHalfEdgesFromVertex()

std::vector< int > open3d::geometry::HalfEdgeTriangleMesh::BoundaryHalfEdgesFromVertex ( int vertex_index ) const

Query manifold boundary half edges from a starting vertex If query vertex is not on boundary, empty vector will be returned

◆ BoundaryVerticesFromVertex()

std::vector< int > open3d::geometry::HalfEdgeTriangleMesh::BoundaryVerticesFromVertex ( int vertex_index ) const

Query manifold boundary vertices from a starting vertex If query vertex is not on boundary, empty vector will be returned

◆ Clear()

void open3d::geometry::HalfEdgeTriangleMesh::Clear ( )

overridevirtual

Clear all data in HalfEdgeTriangleMesh.

Implements open3d::geometry::Geometry3D.

◆ ComputeHalfEdges()

bool open3d::geometry::HalfEdgeTriangleMesh::ComputeHalfEdges ( )

Compute and update half edges, half edge can only be computed if the mesh is a manifold. Returns true if half edges are computed.

◆ GetBoundaries()

std::vector< std::vector< int > > open3d::geometry::HalfEdgeTriangleMesh::GetBoundaries ( ) const

Returns a vector of boundaries. A boundary is a vector of vertices.

◆ HasHalfEdges()

bool open3d::geometry::HalfEdgeTriangleMesh::HasHalfEdges ( ) const

True if half-edges have already been computed.

◆ NextHalfEdgeFromVertex()

int open3d::geometry::HalfEdgeTriangleMesh::NextHalfEdgeFromVertex ( int init_half_edge_index ) const

protected

Returns the next half edge from starting vertex of the input half edge, in a counterclock wise manner. Returns -1 if when hitting a boundary. This is done by traversing to the next, next and twin half edge.

◆ NextHalfEdgeOnBoundary()

int open3d::geometry::HalfEdgeTriangleMesh::NextHalfEdgeOnBoundary ( int curr_half_edge_index ) const

protected

◆ operator+()

HalfEdgeTriangleMesh open3d::geometry::HalfEdgeTriangleMesh::operator+ ( const HalfEdgeTriangleMesh & mesh ) const

◆ operator+=()

HalfEdgeTriangleMesh & open3d::geometry::HalfEdgeTriangleMesh::operator+= ( const HalfEdgeTriangleMesh & mesh )

◆ RemoveDegenerateTriangles()

void open3d::geometry::HalfEdgeTriangleMesh::RemoveDegenerateTriangles ( )

overridevirtual

Function that removes degenerate triangles, i.e., triangles that references a single vertex multiple times in a single triangle. They are usually the product of removing duplicated vertices.

Reimplemented from open3d::geometry::TriangleMesh.

◆ RemoveDuplicatedTriangles()

void open3d::geometry::HalfEdgeTriangleMesh::RemoveDuplicatedTriangles ( )

overridevirtual

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

Reimplemented from open3d::geometry::TriangleMesh.

◆ RemoveDuplicatedVertices()

void open3d::geometry::HalfEdgeTriangleMesh::RemoveDuplicatedVertices ( )

overridevirtual

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

Reimplemented from open3d::geometry::TriangleMesh.

◆ RemoveUnreferencedVertices()

void open3d::geometry::HalfEdgeTriangleMesh::RemoveUnreferencedVertices ( )

overridevirtual

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

Reimplemented from open3d::geometry::TriangleMesh.

Field Documentation

◆ half_edges_

std::vector<HalfEdge> open3d::geometry::HalfEdgeTriangleMesh::half_edges_

◆ ordered_half_edge_from_vertex_

std::vector<std::vector<int> > open3d::geometry::HalfEdgeTriangleMesh::ordered_half_edge_from_vertex_

Counter-clockwise ordered half-edges started from each vertex If the vertex is on boundary, the starting edge must be on boundary too

The documentation for this class was generated from the following files:

/home/ylao/repo/Open3D/src/Open3D/Geometry/HalfEdgeTriangleMesh.h
/home/ylao/repo/Open3D/src/Open3D/Geometry/HalfEdgeTriangleMesh.cpp

Data Structures

Public Member Functions

Data Fields

Protected Member Functions

Additional Inherited Members

Constructor & Destructor Documentation

◆ HalfEdgeTriangleMesh() [1/2]

◆ HalfEdgeTriangleMesh() [2/2]

Member Function Documentation

◆ BoundaryHalfEdgesFromVertex()

◆ BoundaryVerticesFromVertex()

◆ Clear()

◆ ComputeHalfEdges()

◆ GetBoundaries()

◆ HasHalfEdges()

◆ NextHalfEdgeFromVertex()

◆ NextHalfEdgeOnBoundary()

◆ operator+()

◆ operator+=()

◆ RemoveDegenerateTriangles()

◆ RemoveDuplicatedTriangles()

◆ RemoveDuplicatedVertices()

◆ RemoveUnreferencedVertices()

Field Documentation

◆ half_edges_

◆ ordered_half_edge_from_vertex_