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OpenMesh::TriMeshT< Kernel > Class Template Reference

Base type for a triangle mesh. More...

#include <OpenMesh/Mesh/TriMeshT.hh>

Inheritance diagram for OpenMesh::TriMeshT< Kernel >:
Collaboration diagram for OpenMesh::TriMeshT< Kernel >:

Public Types

typedef TriMeshT< Kernel > This
 
typedef PolyMeshT< Kernel > PolyMesh
 
typedef PolyMesh::Scalar Scalar
 
typedef PolyMesh::Point Point
 
typedef PolyMesh::Normal Normal
 
typedef PolyMesh::Color Color
 
typedef PolyMesh::TexCoord1D TexCoord1D
 
typedef PolyMesh::TexCoord2D TexCoord2D
 
typedef PolyMesh::TexCoord3D TexCoord3D
 
typedef PolyMesh::Vertex Vertex
 
typedef PolyMesh::Halfedge Halfedge
 
typedef PolyMesh::Edge Edge
 
typedef PolyMesh::Face Face
 
typedef PolyMesh::VertexHandle VertexHandle
 
typedef PolyMesh::HalfedgeHandle HalfedgeHandle
 
typedef PolyMesh::EdgeHandle EdgeHandle
 
typedef PolyMesh::FaceHandle FaceHandle
 
typedef PolyMesh::VertexIter VertexIter
 
typedef PolyMesh::ConstVertexIter ConstVertexIter
 
typedef PolyMesh::EdgeIter EdgeIter
 
typedef PolyMesh::ConstEdgeIter ConstEdgeIter
 
typedef PolyMesh::FaceIter FaceIter
 
typedef PolyMesh::ConstFaceIter ConstFaceIter
 
typedef PolyMesh::VertexVertexIter VertexVertexIter
 
typedef
PolyMesh::VertexOHalfedgeIter 
VertexOHalfedgeIter
 
typedef
PolyMesh::VertexIHalfedgeIter 
VertexIHalfedgeIter
 
typedef PolyMesh::VertexEdgeIter VertexEdgeIter
 
typedef PolyMesh::VertexFaceIter VertexFaceIter
 
typedef PolyMesh::FaceVertexIter FaceVertexIter
 
typedef PolyMesh::FaceHalfedgeIter FaceHalfedgeIter
 
typedef PolyMesh::FaceEdgeIter FaceEdgeIter
 
typedef PolyMesh::FaceFaceIter FaceFaceIter
 
typedef
PolyMesh::ConstVertexVertexIter 
ConstVertexVertexIter
 
typedef
PolyMesh::ConstVertexOHalfedgeIter 
ConstVertexOHalfedgeIter
 
typedef
PolyMesh::ConstVertexIHalfedgeIter 
ConstVertexIHalfedgeIter
 
typedef
PolyMesh::ConstVertexEdgeIter 
ConstVertexEdgeIter
 
typedef
PolyMesh::ConstVertexFaceIter 
ConstVertexFaceIter
 
typedef
PolyMesh::ConstFaceVertexIter 
ConstFaceVertexIter
 
typedef
PolyMesh::ConstFaceHalfedgeIter 
ConstFaceHalfedgeIter
 
typedef PolyMesh::ConstFaceEdgeIter ConstFaceEdgeIter
 
typedef PolyMesh::ConstFaceFaceIter ConstFaceFaceIter
 
- Public Types inherited from OpenMesh::PolyMeshT< Kernel >
typedef PolyMeshT< Kernel > This
 Self type. Used to specify iterators/circulators.
 
typedef Kernel::VertexHandle VertexHandle
 Handle for referencing the corresponding item.
 
typedef Kernel::HalfedgeHandle HalfedgeHandle
 
typedef Kernel::EdgeHandle EdgeHandle
 
typedef Kernel::FaceHandle FaceHandle
 
typedef Kernel::VertexIter VertexIter
 
typedef Kernel::HalfedgeIter HalfedgeIter
 
typedef Kernel::EdgeIter EdgeIter
 
typedef Kernel::FaceIter FaceIter
 
typedef Kernel::ConstVertexIter ConstVertexIter
 
typedef Kernel::ConstHalfedgeIter ConstHalfedgeIter
 
typedef Kernel::ConstEdgeIter ConstEdgeIter
 
typedef Kernel::ConstFaceIter ConstFaceIter
 
typedef Kernel::Scalar Scalar
 Scalar type.
 
typedef Kernel::Point Point
 Coordinate type.
 
typedef Kernel::Normal Normal
 Normal type.
 
typedef Kernel::Color Color
 Color type.
 
typedef Kernel::TexCoord1D TexCoord1D
 TexCoord1D type.
 
typedef Kernel::TexCoord2D TexCoord2D
 TexCoord2D type.
 
typedef Kernel::TexCoord3D TexCoord3D
 TexCoord3D type.
 
typedef Kernel::Vertex Vertex
 Vertex type.
 
typedef Kernel::Halfedge Halfedge
 Halfedge type.
 
typedef Kernel::Edge Edge
 Edge type.
 
typedef Kernel::Face Face
 Face type.
 
typedef Kernel::VertexVertexIter VertexVertexIter
 Circulator.
 
typedef Kernel::VertexOHalfedgeIter VertexOHalfedgeIter
 Circulator.
 
typedef Kernel::VertexIHalfedgeIter VertexIHalfedgeIter
 Circulator.
 
typedef Kernel::VertexEdgeIter VertexEdgeIter
 Circulator.
 
typedef Kernel::VertexFaceIter VertexFaceIter
 Circulator.
 
typedef Kernel::FaceVertexIter FaceVertexIter
 Circulator.
 
typedef Kernel::FaceHalfedgeIter FaceHalfedgeIter
 Circulator.
 
typedef Kernel::FaceEdgeIter FaceEdgeIter
 Circulator.
 
typedef Kernel::FaceFaceIter FaceFaceIter
 Circulator.
 
typedef
Kernel::ConstVertexVertexIter 
ConstVertexVertexIter
 Circulator.
 
typedef
Kernel::ConstVertexOHalfedgeIter 
ConstVertexOHalfedgeIter
 Circulator.
 
typedef
Kernel::ConstVertexIHalfedgeIter 
ConstVertexIHalfedgeIter
 Circulator.
 
typedef Kernel::ConstVertexEdgeIter ConstVertexEdgeIter
 Circulator.
 
typedef Kernel::ConstVertexFaceIter ConstVertexFaceIter
 Circulator.
 
typedef Kernel::ConstFaceVertexIter ConstFaceVertexIter
 Circulator.
 
typedef
Kernel::ConstFaceHalfedgeIter 
ConstFaceHalfedgeIter
 Circulator.
 
typedef Kernel::ConstFaceEdgeIter ConstFaceEdgeIter
 Circulator.
 
typedef Kernel::ConstFaceFaceIter ConstFaceFaceIter
 Circulator.
 
enum  { IsPolyMesh = 1 }
 Determine whether this is a PolyMeshT or TriMeshT ( This function does not check the per face vertex count! It only checks if the datatype is PolyMeshT or TriMeshT )
 
enum  { IsTriMesh = 0 }
 Determine whether this is a PolyMeshT or TriMeshT ( This function does not check the per face vertex count! It only checks if the datatype is PolyMeshT or TriMeshT )
 

Public Member Functions

 TriMeshT ()
 Default constructor.
 
virtual ~TriMeshT ()
 Destructor.
 
HalfedgeHandle vertex_split (Point _v0_point, VertexHandle _v1, VertexHandle _vl, VertexHandle _vr)
 Vertex Split: inverse operation to collapse(). More...
 
HalfedgeHandle vertex_split (VertexHandle _v0, VertexHandle _v1, VertexHandle _vl, VertexHandle _vr)
 Vertex Split: inverse operation to collapse(). More...
 
VertexHandle split (EdgeHandle _eh, const Point &_p)
 Edge split (= 2-to-4 split) More...
 
VertexHandle split_copy (EdgeHandle _eh, const Point &_p)
 Edge split (= 2-to-4 split) More...
 
void split (EdgeHandle _eh, VertexHandle _vh)
 Edge split (= 2-to-4 split) More...
 
void split_copy (EdgeHandle _eh, VertexHandle _vh)
 Edge split (= 2-to-4 split) More...
 
VertexHandle split (FaceHandle _fh, const Point &_p)
 Face split (= 1-to-3 split, calls corresponding PolyMeshT function). More...
 
VertexHandle split_copy (FaceHandle _fh, const Point &_p)
 Face split (= 1-to-3 split, calls corresponding PolyMeshT function). More...
 
void split (FaceHandle _fh, VertexHandle _vh)
 Face split (= 1-to-3 split, calls corresponding PolyMeshT function). More...
 
void split_copy (FaceHandle _fh, VertexHandle _vh)
 Face split (= 1-to-3 split, calls corresponding PolyMeshT function). More...
 
Normal vector computation
Normal calc_face_normal (FaceHandle _fh) const
 Calculate normal vector for face _fh (specialized for TriMesh). More...
 
- Public Member Functions inherited from OpenMesh::PolyMeshT< Kernel >
VertexHandle new_vertex ()
 Uses default copy and assignment operator. More...
 
VertexHandle new_vertex (const Point &_p)
 
VertexHandle add_vertex (const Point &_p)
 
void calc_edge_vector (EdgeHandle _eh, Normal &_edge_vec) const
 Calculates the edge vector as the vector defined by the halfedge with id #0 (see below)
 
Normal calc_edge_vector (EdgeHandle _eh) const
 Calculates the edge vector as the vector defined by the halfedge with id #0 (see below)
 
void calc_edge_vector (HalfedgeHandle _heh, Normal &_edge_vec) const
 Calculates the edge vector as the difference of the the points defined by to_vertex_handle() and from_vertex_handle()
 
Normal calc_edge_vector (HalfedgeHandle _heh) const
 Calculates the edge vector as the difference of the the points defined by to_vertex_handle() and from_vertex_handle()
 
Scalar calc_edge_length (EdgeHandle _eh) const
 
Scalar calc_edge_length (HalfedgeHandle _heh) const
 Calculates the length of the edge _heh.
 
Scalar calc_edge_sqr_length (EdgeHandle _eh) const
 
Scalar calc_edge_sqr_length (HalfedgeHandle _heh) const
 
void calc_sector_vectors (HalfedgeHandle _in_heh, Normal &_vec0, Normal &_vec1) const
 defines a consistent representation of a sector geometry: the halfedge _in_heh defines the sector orientation the vertex pointed by _in_heh defines the sector center _vec0 and _vec1 are resp. More...
 
Scalar calc_sector_angle (HalfedgeHandle _in_heh) const
 calculates the sector angle. More...
 
void calc_sector_normal (HalfedgeHandle _in_heh, Normal &_sector_normal) const
 calculates the normal (non-normalized) of the face sector defined by the angle <(_in_heh,next_halfedge(_in_heh))
 
Scalar calc_sector_area (HalfedgeHandle _in_heh) const
 calculates the area of the face sector defined by the angle <(_in_heh,next_halfedge(_in_heh)) NOTE: special cases (e.g. More...
 
Scalar calc_dihedral_angle_fast (HalfedgeHandle _heh) const
 calculates the dihedral angle on the halfedge _heh More...
 
Scalar calc_dihedral_angle_fast (EdgeHandle _eh) const
 calculates the dihedral angle on the edge _eh More...
 
Scalar calc_dihedral_angle (HalfedgeHandle _heh) const
 
Scalar calc_dihedral_angle (EdgeHandle _eh) const
 
unsigned int find_feature_edges (Scalar _angle_tresh=OpenMesh::deg_to_rad(44.0))
 tags an edge as a feature if its dihedral angle is larger than _angle_tresh returns the number of the found feature edges, requires edge_status property
 
void split (FaceHandle _fh, const Point &_p)
 Face split (= 1-to-n split)
 
void split (FaceHandle _fh, VertexHandle _vh)
 
void split (EdgeHandle _eh, const Point &_p)
 
void split (EdgeHandle _eh, VertexHandle _vh)
 
void update_normals ()
 Compute normals for all primitives. More...
 
void update_normal (FaceHandle _fh)
 Update normal for face _fh.
 
void update_face_normals ()
 Update normal vectors for all faces. More...
 
Normal calc_face_normal (const Point &_p0, const Point &_p1, const Point &_p2) const
 Calculate normal vector for face (_p0, _p1, _p2). More...
 
void calc_face_centroid (FaceHandle _fh, Point &_pt) const
 calculates the average of the vertices defining _fh
 
Point calc_face_centroid (FaceHandle _fh) const
 Computes and returns the average of the vertices defining _gh.
 
void update_normal (HalfedgeHandle _heh, const double _feature_angle=0.8)
 Update normal for halfedge _heh.
 
void update_halfedge_normals (const double _feature_angle=0.8)
 Update normal vectors for all halfedges. More...
 
virtual Normal calc_halfedge_normal (HalfedgeHandle _heh, const double _feature_angle=0.8) const
 Calculate halfedge normal for one specific halfedge. More...
 
bool is_estimated_feature_edge (HalfedgeHandle _heh, const double _feature_angle) const
 identifies feature edges w.r.t. More...
 
void update_normal (VertexHandle _vh)
 Update normal for vertex _vh.
 
void update_vertex_normals ()
 Update normal vectors for all vertices. More...
 
Normal calc_vertex_normal (VertexHandle _vh) const
 Calculate vertex normal for one specific vertex. More...
 
void calc_vertex_normal_fast (VertexHandle _vh, Normal &_n) const
 Different methods for calculation of the normal at _vh: More...
 
void calc_vertex_normal_correct (VertexHandle _vh, Normal &_n) const
 Compute normals for all primitives. More...
 
void calc_vertex_normal_loop (VertexHandle _vh, Normal &_n) const
 Compute normals for all primitives. More...
 
enum  { IsPolyMesh = 0 }
 Determine whether this is a PolyMeshT or TriMeshT ( This function does not check the per face vertex count! It only checks if the datatype is PolyMeshT or TriMeshT )
 
enum  { IsTriMesh = 1 }
 Determine whether this is a PolyMeshT or TriMeshT ( This function does not check the per face vertex count! It only checks if the datatype is PolyMeshT or TriMeshT )
 
static bool is_polymesh ()
 Determine whether this is a PolyMeshT or TriMeshT ( This function does not check the per face vertex count! It only checks if the datatype is PolyMeshT or TriMeshT )
 
static bool is_trimesh ()
 Determine whether this is a PolyMeshT or TriMeshT ( This function does not check the per face vertex count! It only checks if the datatype is PolyMeshT or TriMeshT )
 

Additional Inherited Members

- Static Public Member Functions inherited from OpenMesh::PolyMeshT< Kernel >
static bool is_polymesh ()
 Determine whether this is a PolyMeshT or TriMeshT ( This function does not check the per face vertex count! It only checks if the datatype is PolyMeshT or TriMeshT )
 
static bool is_trimesh ()
 Determine whether this is a PolyMeshT or TriMeshT ( This function does not check the per face vertex count! It only checks if the datatype is PolyMeshT or TriMeshT )
 

Detailed Description

template<class Kernel>
class OpenMesh::TriMeshT< Kernel >

Base type for a triangle mesh.

Base type for a triangle mesh, parameterized by a mesh kernel. The mesh inherits all methods from the kernel class and the more general polygonal mesh PolyMeshT. Therefore it provides the same types for items, handles, iterators and so on.

Parameters
Kerneltemplate argument for the mesh kernel
Note
You should use the predefined mesh-kernel combinations in Predefined Mesh Types
See also
Specifying your MyMesh
OpenMesh::PolyMeshT

Member Function Documentation

template<class Kernel >
TriMeshT< Kernel >::Normal OpenMesh::TriMeshT< Kernel >::calc_face_normal ( FaceHandle  _fh) const
virtual

Calculate normal vector for face _fh (specialized for TriMesh).

Reimplemented from OpenMesh::PolyMeshT< Kernel >.

template<class Kernel>
VertexHandle OpenMesh::TriMeshT< Kernel >::split ( EdgeHandle  _eh,
const Point _p 
)
inline

Edge split (= 2-to-4 split)

The properties of the new edges will be undefined!

Parameters
_ehEdge handle that should be splitted
_pNew point position that will be inserted at the edge
Returns
Vertex handle of the newly added vertex
template<class Kernel>
void OpenMesh::TriMeshT< Kernel >::split ( EdgeHandle  _eh,
VertexHandle  _vh 
)
inline

Edge split (= 2-to-4 split)

The properties of the new edges will be undefined!

Parameters
_ehEdge handle that should be splitted
_vhVertex handle that will be inserted at the edge
template<class Kernel>
VertexHandle OpenMesh::TriMeshT< Kernel >::split ( FaceHandle  _fh,
const Point _p 
)
inline

Face split (= 1-to-3 split, calls corresponding PolyMeshT function).

The properties of the new faces will be undefined!

Parameters
_fhFace handle that should be splitted
_pNew point position that will be inserted in the face
Returns
Vertex handle of the new vertex
template<class Kernel>
void OpenMesh::TriMeshT< Kernel >::split ( FaceHandle  _fh,
VertexHandle  _vh 
)
inline

Face split (= 1-to-3 split, calls corresponding PolyMeshT function).

The properties of the new faces will be undefined!

Parameters
_fhFace handle that should be splitted
_vhVertex handle that will be inserted at the face
template<class Kernel>
VertexHandle OpenMesh::TriMeshT< Kernel >::split_copy ( EdgeHandle  _eh,
const Point _p 
)
inline

Edge split (= 2-to-4 split)

The properties of the new edges will be adjusted to the properties of the original edge

Parameters
_ehEdge handle that should be splitted
_pNew point position that will be inserted at the edge
Returns
Vertex handle of the newly added vertex
template<class Kernel>
void OpenMesh::TriMeshT< Kernel >::split_copy ( EdgeHandle  _eh,
VertexHandle  _vh 
)
inline

Edge split (= 2-to-4 split)

The properties of the new edges will be adjusted to the properties of the original edge

Parameters
_ehEdge handle that should be splitted
_vhVertex handle that will be inserted at the edge
template<class Kernel>
VertexHandle OpenMesh::TriMeshT< Kernel >::split_copy ( FaceHandle  _fh,
const Point _p 
)
inline

Face split (= 1-to-3 split, calls corresponding PolyMeshT function).

The properties of the new faces will be adjusted to the properties of the original face

Parameters
_fhFace handle that should be splitted
_pNew point position that will be inserted in the face
Returns
Vertex handle of the new vertex
template<class Kernel>
void OpenMesh::TriMeshT< Kernel >::split_copy ( FaceHandle  _fh,
VertexHandle  _vh 
)
inline

Face split (= 1-to-3 split, calls corresponding PolyMeshT function).

The properties of the new faces will be adjusted to the properties of the original face

Parameters
_fhFace handle that should be splitted
_vhVertex handle that will be inserted at the face
template<class Kernel>
HalfedgeHandle OpenMesh::TriMeshT< Kernel >::vertex_split ( Point  _v0_point,
VertexHandle  _v1,
VertexHandle  _vl,
VertexHandle  _vr 
)
inline

Vertex Split: inverse operation to collapse().

Insert the new vertex at position v0. The vertex will be added as the inverse of the vertex split. The faces above the split will be correctly attached to the two new edges

Before: v_l v0 v_r x x x \ / \ / \ / \ / \ / \ / x v1

After: v_l v0 v_r x---—x---—x \ | / \ | / \ | / \ | / \ | / |/ x v1

Parameters
_v0_pointPoint position for the new point
_v1Vertex that will be split
_vlLeft vertex handle
_vrRight vertex handle
Returns
Newly inserted halfedge
template<class Kernel>
HalfedgeHandle OpenMesh::TriMeshT< Kernel >::vertex_split ( VertexHandle  _v0,
VertexHandle  _v1,
VertexHandle  _vl,
VertexHandle  _vr 
)
inline

Vertex Split: inverse operation to collapse().

Insert the new vertex at position v0. The vertex will be added as the inverse of the vertex split. The faces above the split will be correctly attached to the two new edges

Before: v_l v0 v_r x x x \ / \ / \ / \ / \ / \ / x v1

After: v_l v0 v_r x---—x---—x \ | / \ | / \ | / \ | / \ | / |/ x v1

Parameters
_v0Vertex handle for the newly inserted point (Input has to be unconnected!)
_v1Vertex that will be split
_vlLeft vertex handle
_vrRight vertex handle
Returns
Newly inserted halfedge

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

Project OpenMesh, ©  Computer Graphics Group, RWTH Aachen. Documentation generated using doxygen .