OpenMesh
PolyMeshT.hh
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49 
50 //=============================================================================
51 //
52 // CLASS PolyMeshT
53 //
54 //=============================================================================
55 
56 
57 #ifndef OPENMESH_POLYMESHT_HH
58 #define OPENMESH_POLYMESHT_HH
59 
60 
61 //== INCLUDES =================================================================
62 
63 
64 #include <OpenMesh/Core/System/config.h>
65 #include <OpenMesh/Core/Geometry/MathDefs.hh>
66 #include <OpenMesh/Core/Mesh/PolyConnectivity.hh>
67 #include <OpenMesh/Core/Mesh/FinalMeshItemsT.hh>
68 #include <vector>
69 
70 
71 //== NAMESPACES ===============================================================
72 
73 
74 namespace OpenMesh {
75 
76 //== CLASS DEFINITION =========================================================
77 
78 
93 template <class Kernel>
94 class PolyMeshT : public Kernel
95 {
96 public:
97 
100  //--- item types ---
101 
103  enum { IsPolyMesh = 1 };
105  enum { IsTriMesh = 0 };
106  static bool is_polymesh() { return true; }
107  static bool is_trimesh() { return false; }
109 
111 
112  typedef typename Kernel::Scalar Scalar;
115  typedef typename Kernel::Point Point;
117  typedef typename Kernel::Normal Normal;
119  typedef typename Kernel::Color Color;
121  typedef typename Kernel::TexCoord1D TexCoord1D;
123  typedef typename Kernel::TexCoord2D TexCoord2D;
125  typedef typename Kernel::TexCoord3D TexCoord3D;
127  typedef typename Kernel::Vertex Vertex;
129  typedef typename Kernel::Halfedge Halfedge;
131  typedef typename Kernel::Edge Edge;
133  typedef typename Kernel::Face Face;
135 
136  //--- handle types ---
137 
139  typedef typename Kernel::VertexHandle VertexHandle;
140  typedef typename Kernel::HalfedgeHandle HalfedgeHandle;
141  typedef typename Kernel::EdgeHandle EdgeHandle;
142  typedef typename Kernel::FaceHandle FaceHandle;
143 
144 
145 
146  typedef typename Kernel::VertexIter VertexIter;
147  typedef typename Kernel::HalfedgeIter HalfedgeIter;
148  typedef typename Kernel::EdgeIter EdgeIter;
149  typedef typename Kernel::FaceIter FaceIter;
150 
151  typedef typename Kernel::ConstVertexIter ConstVertexIter;
152  typedef typename Kernel::ConstHalfedgeIter ConstHalfedgeIter;
153  typedef typename Kernel::ConstEdgeIter ConstEdgeIter;
154  typedef typename Kernel::ConstFaceIter ConstFaceIter;
156 
157  //--- circulators ---
158 
164  typedef typename Kernel::VertexVertexIter VertexVertexIter;
166  typedef typename Kernel::VertexOHalfedgeIter VertexOHalfedgeIter;
167  typedef typename Kernel::VertexIHalfedgeIter VertexIHalfedgeIter;
168  typedef typename Kernel::VertexEdgeIter VertexEdgeIter;
169  typedef typename Kernel::VertexFaceIter VertexFaceIter;
170  typedef typename Kernel::FaceVertexIter FaceVertexIter;
171  typedef typename Kernel::FaceHalfedgeIter FaceHalfedgeIter;
172  typedef typename Kernel::FaceEdgeIter FaceEdgeIter;
173  typedef typename Kernel::FaceFaceIter FaceFaceIter;
174 
175  typedef typename Kernel::ConstVertexVertexIter ConstVertexVertexIter;
176  typedef typename Kernel::ConstVertexOHalfedgeIter ConstVertexOHalfedgeIter;
177  typedef typename Kernel::ConstVertexIHalfedgeIter ConstVertexIHalfedgeIter;
178  typedef typename Kernel::ConstVertexEdgeIter ConstVertexEdgeIter;
179  typedef typename Kernel::ConstVertexFaceIter ConstVertexFaceIter;
180  typedef typename Kernel::ConstFaceVertexIter ConstFaceVertexIter;
181  typedef typename Kernel::ConstFaceHalfedgeIter ConstFaceHalfedgeIter;
182  typedef typename Kernel::ConstFaceEdgeIter ConstFaceEdgeIter;
183  typedef typename Kernel::ConstFaceFaceIter ConstFaceFaceIter;
185 
186 
187  // --- constructor/destructor
188  PolyMeshT() {}
189  template<typename T>
190  explicit PolyMeshT(const T& t) : Kernel(t) {}
191  virtual ~PolyMeshT() {}
192 
197  // --- creation ---
198 
204  inline VertexHandle new_vertex()
205  { return Kernel::new_vertex(); }
206 
212  inline VertexHandle new_vertex(const Point& _p)
213  {
214  VertexHandle vh(Kernel::new_vertex());
215  this->set_point(vh, _p);
216  return vh;
217  }
218 
230  inline VertexHandle new_vertex_dirty(const Point& _p)
231  {
232  VertexHandle vh(Kernel::new_vertex_dirty());
233  this->set_point(vh, _p);
234  return vh;
235  }
236 
238  inline VertexHandle add_vertex(const Point& _p)
239  { return new_vertex(_p); }
240 
242  inline VertexHandle add_vertex_dirty(const Point& _p)
243  { return new_vertex_dirty(_p); }
244 
245  // --- normal vectors ---
246 
250 
258  void update_normals();
259 
261  void update_normal(FaceHandle _fh)
262  { this->set_normal(_fh, calc_face_normal(_fh)); }
263 
269  void update_face_normals();
270 
272  virtual Normal calc_face_normal(FaceHandle _fh) const;
273 
275  Normal calc_face_normal(const Point& _p0, const Point& _p1,
276  const Point& _p2) const;
278  void calc_face_centroid(FaceHandle _fh, Point& _pt) const {
279  _pt = calc_face_centroid(_fh);
280  }
281 
283  Point calc_face_centroid(FaceHandle _fh) const;
284 
286  void update_normal(HalfedgeHandle _heh, const double _feature_angle = 0.8)
287  { this->set_normal(_heh, calc_halfedge_normal(_heh,_feature_angle)); }
288 
298  void update_halfedge_normals(const double _feature_angle = 0.8);
299 
312  virtual Normal calc_halfedge_normal(HalfedgeHandle _heh, const double _feature_angle = 0.8) const;
313 
314 
317  bool is_estimated_feature_edge(HalfedgeHandle _heh, const double _feature_angle) const;
318 
320  void update_normal(VertexHandle _vh)
321  { this->set_normal(_vh, calc_vertex_normal(_vh)); }
322 
332  void update_vertex_normals();
333 
346  Normal calc_vertex_normal(VertexHandle _vh) const;
347 
355  void calc_vertex_normal_fast(VertexHandle _vh, Normal& _n) const;
356  void calc_vertex_normal_correct(VertexHandle _vh, Normal& _n) const;
357  void calc_vertex_normal_loop(VertexHandle _vh, Normal& _n) const;
358 
359 
361 
362  // --- Geometry API - still in development ---
363 
366  void calc_edge_vector(EdgeHandle _eh, Normal& _edge_vec) const
367  {
368  _edge_vec = calc_edge_vector(_eh);
369  }
370 
373  Normal calc_edge_vector(EdgeHandle _eh) const
374  {
375  return calc_edge_vector(this->halfedge_handle(_eh,0));
376  }
377 
380  void calc_edge_vector(HalfedgeHandle _heh, Normal& _edge_vec) const
381  {
382  _edge_vec = calc_edge_vector(_heh);
383  }
384 
387  Normal calc_edge_vector(HalfedgeHandle _heh) const
388  {
389  return this->point(this->to_vertex_handle(_heh)) -
390  this->point(this->from_vertex_handle(_heh));
391  }
392 
393  // Calculates the length of the edge _eh
394  Scalar calc_edge_length(EdgeHandle _eh) const
395  { return calc_edge_length(this->halfedge_handle(_eh,0)); }
396 
399  Scalar calc_edge_length(HalfedgeHandle _heh) const
400  { return (Scalar)sqrt(calc_edge_sqr_length(_heh)); }
401 
402  Scalar calc_edge_sqr_length(EdgeHandle _eh) const
403  { return calc_edge_sqr_length(this->halfedge_handle(_eh,0)); }
404 
405  Scalar calc_edge_sqr_length(HalfedgeHandle _heh) const
406  {
407  Normal edge_vec;
408  calc_edge_vector(_heh, edge_vec);
409  return sqrnorm(edge_vec);
410  }
411 
414  Point calc_edge_midpoint(HalfedgeHandle _heh) const
415  {
416  VertexHandle vh0 = this->from_vertex_handle(_heh);
417  VertexHandle vh1 = this->to_vertex_handle(_heh);
418  return 0.5 * (this->point(vh0) + this->point(vh1));
419  }
420 
423  Point calc_edge_midpoint(EdgeHandle _eh) const
424  {
425  return calc_edge_midpoint(this->halfedge_handle(_eh, 0));
426  }
427 
432  void calc_sector_vectors(HalfedgeHandle _in_heh, Normal& _vec0, Normal& _vec1) const
433  {
434  calc_edge_vector(this->next_halfedge_handle(_in_heh), _vec0);//p2 - p1
435  calc_edge_vector(this->opposite_halfedge_handle(_in_heh), _vec1);//p0 - p1
436  }
437 
443  Scalar calc_sector_angle(HalfedgeHandle _in_heh) const
444  {
445  Normal v0, v1;
446  calc_sector_vectors(_in_heh, v0, v1);
447  Scalar denom = norm(v0)*norm(v1);
448  if ( denom == Scalar(0))
449  {
450  return 0;
451  }
452  Scalar cos_a = dot(v0 , v1) / denom;
453  if (this->is_boundary(_in_heh))
454  {//determine if the boundary sector is concave or convex
455  FaceHandle fh(this->face_handle(this->opposite_halfedge_handle(_in_heh)));
456  Normal f_n(calc_face_normal(fh));//this normal is (for convex fh) OK
457  Scalar sign_a = dot(cross(v0, v1), f_n);
458  return angle(cos_a, sign_a);
459  }
460  else
461  {
462  return acos(sane_aarg(cos_a));
463  }
464  }
465 
466  // calculate the cos and the sin of angle <(_in_heh,next_halfedge(_in_heh))
467  /*
468  void calc_sector_angle_cos_sin(HalfedgeHandle _in_heh, Scalar& _cos_a, Scalar& _sin_a) const
469  {
470  Normal in_vec, out_vec;
471  calc_edge_vector(_in_heh, in_vec);
472  calc_edge_vector(next_halfedge_handle(_in_heh), out_vec);
473  Scalar denom = norm(in_vec)*norm(out_vec);
474  if (is_zero(denom))
475  {
476  _cos_a = 1;
477  _sin_a = 0;
478  }
479  else
480  {
481  _cos_a = dot(in_vec, out_vec)/denom;
482  _sin_a = norm(cross(in_vec, out_vec))/denom;
483  }
484  }
485  */
488  void calc_sector_normal(HalfedgeHandle _in_heh, Normal& _sector_normal) const
489  {
490  Normal vec0, vec1;
491  calc_sector_vectors(_in_heh, vec0, vec1);
492  _sector_normal = cross(vec0, vec1);//(p2-p1)^(p0-p1)
493  }
494 
498  Scalar calc_sector_area(HalfedgeHandle _in_heh) const
499  {
500  Normal sector_normal;
501  calc_sector_normal(_in_heh, sector_normal);
502  return norm(sector_normal)/2;
503  }
504 
507  Scalar calc_dihedral_angle_fast(HalfedgeHandle _heh) const
508  {
509  // Make sure that we have face normals on the mesh
510  assert(Kernel::has_face_normals());
511 
512  if (this->is_boundary(this->edge_handle(_heh)))
513  {//the dihedral angle at a boundary edge is 0
514  return 0;
515  }
516  const Normal& n0 = this->normal(this->face_handle(_heh));
517  const Normal& n1 = this->normal(this->face_handle(this->opposite_halfedge_handle(_heh)));
518  Normal he;
519  calc_edge_vector(_heh, he);
520  Scalar da_cos = dot(n0, n1);
521  //should be normalized, but we need only the sign
522  Scalar da_sin_sign = dot(cross(n0, n1), he);
523  return angle(da_cos, da_sin_sign);
524  }
525 
528  Scalar calc_dihedral_angle_fast(EdgeHandle _eh) const
529  { return calc_dihedral_angle_fast(this->halfedge_handle(_eh,0)); }
530 
531  // calculates the dihedral angle on the halfedge _heh
532  Scalar calc_dihedral_angle(HalfedgeHandle _heh) const
533  {
534  if (this->is_boundary(this->edge_handle(_heh)))
535  {//the dihedral angle at a boundary edge is 0
536  return 0;
537  }
538  Normal n0, n1, he;
539  calc_sector_normal(_heh, n0);
540  calc_sector_normal(this->opposite_halfedge_handle(_heh), n1);
541  calc_edge_vector(_heh, he);
542  Scalar denom = norm(n0)*norm(n1);
543  if (denom == Scalar(0))
544  {
545  return 0;
546  }
547  Scalar da_cos = dot(n0, n1)/denom;
548  //should be normalized, but we need only the sign
549  Scalar da_sin_sign = dot(cross(n0, n1), he);
550  return angle(da_cos, da_sin_sign);
551  }
552 
553  // calculates the dihedral angle on the edge _eh
554  Scalar calc_dihedral_angle(EdgeHandle _eh) const
555  { return calc_dihedral_angle(this->halfedge_handle(_eh,0)); }
556 
559  unsigned int find_feature_edges(Scalar _angle_tresh = OpenMesh::deg_to_rad(44.0));
560  // --- misc ---
561 
563  inline void split(FaceHandle _fh, const Point& _p)
564  { Kernel::split(_fh, add_vertex(_p)); }
565 
566  inline void split(FaceHandle _fh, VertexHandle _vh)
567  { Kernel::split(_fh, _vh); }
568 
569  inline void split(EdgeHandle _eh, const Point& _p)
570  { Kernel::split_edge(_eh, add_vertex(_p)); }
571 
572  inline void split(EdgeHandle _eh, VertexHandle _vh)
573  { Kernel::split_edge(_eh, _vh); }
574 
575 private:
576  struct PointIs3DTag {};
577  struct PointIsNot3DTag {};
578  Normal calc_face_normal_impl(FaceHandle, PointIs3DTag) const;
579  Normal calc_face_normal_impl(FaceHandle, PointIsNot3DTag) const;
580  Normal calc_face_normal_impl(const Point&, const Point&, const Point&, PointIs3DTag) const;
581  Normal calc_face_normal_impl(const Point&, const Point&, const Point&, PointIsNot3DTag) const;
582 };
583 
609 template<typename LHS, typename KERNEL>
611  return MeshCast<LHS, PolyMeshT<KERNEL>&>::cast(rhs);
612 }
613 
614 template<typename LHS, typename KERNEL>
615 LHS mesh_cast(PolyMeshT<KERNEL> *rhs) {
616  return MeshCast<LHS, PolyMeshT<KERNEL>*>::cast(rhs);
617 }
618 
619 template<typename LHS, typename KERNEL>
620 const LHS mesh_cast(const PolyMeshT<KERNEL> &rhs) {
621  return MeshCast<LHS, const PolyMeshT<KERNEL>&>::cast(rhs);
622 }
623 
624 template<typename LHS, typename KERNEL>
625 const LHS mesh_cast(const PolyMeshT<KERNEL> *rhs) {
626  return MeshCast<LHS, const PolyMeshT<KERNEL>*>::cast(rhs);
627 }
628 
629 //=============================================================================
630 } // namespace OpenMesh
631 //=============================================================================
632 #if defined(OM_INCLUDE_TEMPLATES) && !defined(OPENMESH_POLYMESH_C)
633 # define OPENMESH_POLYMESH_TEMPLATES
634 # include "PolyMeshT.cc"
635 #endif
636 //=============================================================================
637 #endif // OPENMESH_POLYMESHT_HH defined
638 //=============================================================================
Kernel::Vertex Vertex
Vertex type.
Definition: PolyMeshT.hh:127
Kernel::ConstFaceFaceIter ConstFaceFaceIter
Circulator.
Definition: PolyMeshT.hh:183
Kernel::Edge Edge
Edge type.
Definition: PolyMeshT.hh:131
osg::Vec3f::ValueType dot(const osg::Vec3f &_v1, const osg::Vec3f &_v2)
Adapter for osg vector member computing a scalar product.
Definition: VectorAdapter.hh:181
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 ori...
Definition: PolyMeshT.hh:432
void calc_vertex_normal_correct(VertexHandle _vh, Normal &_n) const
Compute normals for all primitives.
Definition: PolyMeshT.cc:402
void update_normal(FaceHandle _fh)
Update normal for face _fh.
Definition: PolyMeshT.hh:261
Normal calc_edge_vector(EdgeHandle _eh) const
Calculates the edge vector as the vector defined by the halfedge with id #0 (see below) ...
Definition: PolyMeshT.hh:373
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:64
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...
Definition: PolyMeshT.hh:387
Kernel::VertexHandle VertexHandle
Handle for referencing the corresponding item.
Definition: PolyMeshT.hh:139
VertexHandle new_vertex(const Point &_p)
Adds a new vertex initialized to a custom position.
Definition: PolyMeshT.hh:212
Kernel::VertexEdgeIter VertexEdgeIter
Circulator.
Definition: PolyMeshT.hh:168
Kernel::Halfedge Halfedge
Halfedge type.
Definition: PolyMeshT.hh:129
Kernel::Normal Normal
Normal type.
Definition: PolyMeshT.hh:117
Kernel::FaceFaceIter FaceFaceIter
Circulator.
Definition: PolyMeshT.hh:173
Kernel::ConstFaceEdgeIter ConstFaceEdgeIter
Circulator.
Definition: PolyMeshT.hh:182
Kernel::ConstFaceVertexIter ConstFaceVertexIter
Circulator.
Definition: PolyMeshT.hh:180
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) ...
Definition: PolyMeshT.hh:366
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: s...
Definition: PolyMeshT.hh:498
Kernel::TexCoord1D TexCoord1D
TexCoord1D type.
Definition: PolyMeshT.hh:121
Scalar calc_dihedral_angle_fast(HalfedgeHandle _heh) const
calculates the dihedral angle on the halfedge _heh
Definition: PolyMeshT.hh:507
Kernel::ConstVertexOHalfedgeIter ConstVertexOHalfedgeIter
Circulator.
Definition: PolyMeshT.hh:176
void update_normal(HalfedgeHandle _heh, const double _feature_angle=0.8)
Update normal for halfedge _heh.
Definition: PolyMeshT.hh:286
Kernel::ConstVertexIHalfedgeIter ConstVertexIHalfedgeIter
Circulator.
Definition: PolyMeshT.hh:177
LHS mesh_cast(PolyMeshT< KERNEL > &rhs)
Cast a mesh with different but identical traits into each other.
Definition: PolyMeshT.hh:610
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...
Definition: PolyMeshT.cc:79
void calc_face_centroid(FaceHandle _fh, Point &_pt) const
calculates the average of the vertices defining _fh
Definition: PolyMeshT.hh:278
osg::Vec3f cross(const osg::Vec3f &_v1, const osg::Vec3f &_v2)
Adapter for osg vector member computing a scalar product.
Definition: VectorAdapter.hh:196
T sane_aarg(T _aarg)
Trigonometry/angles - related.
Definition: MathDefs.hh:127
bool is_estimated_feature_edge(HalfedgeHandle _heh, const double _feature_angle) const
identifies feature edges w.r.t.
Definition: PolyMeshT.cc:347
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...
Definition: PolyMeshT.hh:380
PolyMeshT< Kernel > This
Self type. Used to specify iterators/circulators.
Definition: PolyMeshT.hh:99
void split(FaceHandle _fh, const Point &_p)
Face split (= 1-to-n split)
Definition: PolyMeshT.hh:563
Kernel::Color Color
Color type.
Definition: PolyMeshT.hh:119
Add 3D texture coordinates (vertices, halfedges)
Definition: Attributes.hh:93
Kernel::FaceEdgeIter FaceEdgeIter
Circulator.
Definition: PolyMeshT.hh:172
Scalar calc_edge_length(HalfedgeHandle _heh) const
Calculates the length of the edge _heh.
Definition: PolyMeshT.hh:399
Normal calc_vertex_normal(VertexHandle _vh) const
Calculate vertex normal for one specific vertex.
Definition: PolyMeshT.cc:378
VertexHandle add_vertex(const Point &_p)
Alias for new_vertex(const Point&).
Definition: PolyMeshT.hh:238
virtual Normal calc_face_normal(FaceHandle _fh) const
Calculate normal vector for face _fh.
Definition: PolyMeshT.cc:102
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))
Definition: PolyMeshT.hh:488
Base type for a polygonal mesh.
Definition: PolyMeshT.hh:94
void update_face_normals()
Update normal vectors for all faces.
Definition: PolyMeshT.cc:264
Kernel::VertexFaceIter VertexFaceIter
Circulator.
Definition: PolyMeshT.hh:169
Cast a mesh with different but identical traits into each other.
Definition: FinalMeshItemsT.hh:183
Kernel::FaceHalfedgeIter FaceHalfedgeIter
Circulator.
Definition: PolyMeshT.hh:171
Add 1D texture coordinates (vertices, halfedges)
Definition: Attributes.hh:91
void calc_vertex_normal_loop(VertexHandle _vh, Normal &_n) const
Compute normals for all primitives.
Definition: PolyMeshT.cc:430
static bool is_polymesh()
Determine whether this is a PolyMeshT or TriMeshT ( This function does not check the per face vertex ...
Definition: PolyMeshT.hh:106
void update_halfedge_normals(const double _feature_angle=0.8)
Update normal vectors for all halfedges.
Definition: PolyMeshT.cc:279
Kernel::ConstVertexVertexIter ConstVertexVertexIter
Circulator.
Definition: PolyMeshT.hh:175
static bool is_trimesh()
Determine whether this is a PolyMeshT or TriMeshT ( This function does not check the per face vertex ...
Definition: PolyMeshT.hh:107
Kernel::VertexVertexIter VertexVertexIter
Circulator.
Definition: PolyMeshT.hh:165
Add normals to mesh item (vertices/faces)
Definition: Attributes.hh:87
Kernel::ConstVertexFaceIter ConstVertexFaceIter
Circulator.
Definition: PolyMeshT.hh:179
Point calc_edge_midpoint(HalfedgeHandle _heh) const
Calculates the midpoint of the halfedge _heh, defined by the positions of the two incident vertices...
Definition: PolyMeshT.hh:414
virtual Normal calc_halfedge_normal(HalfedgeHandle _heh, const double _feature_angle=0.8) const
Calculate halfedge normal for one specific halfedge.
Definition: PolyMeshT.cc:294
Kernel::Scalar Scalar
Scalar type.
Definition: PolyMeshT.hh:113
Kernel::Point Point
Coordinate type.
Definition: PolyMeshT.hh:115
Point calc_edge_midpoint(EdgeHandle _eh) const
Calculates the midpoint of the edge _eh, defined by the positions of the two incident vertices...
Definition: PolyMeshT.hh:423
Kernel::TexCoord2D TexCoord2D
TexCoord2D type.
Definition: PolyMeshT.hh:123
VertexHandle add_vertex_dirty(const Point &_p)
Alias for new_vertex_dirty().
Definition: PolyMeshT.hh:242
Kernel::FaceVertexIter FaceVertexIter
Circulator.
Definition: PolyMeshT.hh:170
Scalar calc_sector_angle(HalfedgeHandle _in_heh) const
calculates the sector angle.
Definition: PolyMeshT.hh:443
Kernel::ConstVertexEdgeIter ConstVertexEdgeIter
Circulator.
Definition: PolyMeshT.hh:178
Kernel::ConstFaceHalfedgeIter ConstFaceHalfedgeIter
Circulator.
Definition: PolyMeshT.hh:181
Kernel::VertexIHalfedgeIter VertexIHalfedgeIter
Circulator.
Definition: PolyMeshT.hh:167
Add colors to mesh item (vertices/faces/edges)
Definition: Attributes.hh:88
T angle(T _cos_angle, T _sin_angle)
returns the angle determined by its cos and the sign of its sin result is positive if the angle is in...
Definition: MathDefs.hh:145
void update_normal(VertexHandle _vh)
Update normal for vertex _vh.
Definition: PolyMeshT.hh:320
VertexHandle new_vertex()
Uses default copy and assignment operator.
Definition: PolyMeshT.hh:204
Kernel::TexCoord3D TexCoord3D
TexCoord3D type.
Definition: PolyMeshT.hh:125
Add 2D texture coordinates (vertices, halfedges)
Definition: Attributes.hh:92
Kernel::VertexOHalfedgeIter VertexOHalfedgeIter
Circulator.
Definition: PolyMeshT.hh:166
void calc_vertex_normal_fast(VertexHandle _vh, Normal &_n) const
Different methods for calculation of the normal at _vh:
Definition: PolyMeshT.cc:392
void update_vertex_normals()
Update normal vectors for all vertices.
Definition: PolyMeshT.cc:453
Scalar calc_dihedral_angle_fast(EdgeHandle _eh) const
calculates the dihedral angle on the edge _eh
Definition: PolyMeshT.hh:528
Kernel::Face Face
Face type.
Definition: PolyMeshT.hh:133
void update_normals()
Compute normals for all primitives.
Definition: PolyMeshT.cc:246
VertexHandle new_vertex_dirty(const Point &_p)
Same as new_vertex(const Point&) but never shrinks, only enlarges the vertex property vectors...
Definition: PolyMeshT.hh:230

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