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PolyMeshT.hh
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42 /*===========================================================================*\
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47 \*===========================================================================*/
48
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
99 typedef PolyMeshT<Kernel> This;
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 virtual ~PolyMeshT() {}
190
195 // --- creation ---
196
202 inline VertexHandle new_vertex()
203 { return Kernel::new_vertex(); }
204
210 inline VertexHandle new_vertex(const Point& _p)
211 {
212 VertexHandle vh(Kernel::new_vertex());
213 this->set_point(vh, _p);
214 return vh;
215 }
216
228 inline VertexHandle new_vertex_dirty(const Point& _p)
229 {
230 VertexHandle vh(Kernel::new_vertex_dirty());
231 this->set_point(vh, _p);
232 return vh;
233 }
234
236 inline VertexHandle add_vertex(const Point& _p)
237 { return new_vertex(_p); }
238
240 inline VertexHandle add_vertex_dirty(const Point& _p)
241 { return new_vertex_dirty(_p); }
242
243 // --- normal vectors ---
244
248
256 void update_normals();
257
259 void update_normal(FaceHandle _fh)
260 { this->set_normal(_fh, calc_face_normal(_fh)); }
261
267 void update_face_normals();
268
270 virtual Normal calc_face_normal(FaceHandle _fh) const;
271
273 Normal calc_face_normal(const Point& _p0, const Point& _p1,
274 const Point& _p2) const;
276 void calc_face_centroid(FaceHandle _fh, Point& _pt) const {
277 _pt = calc_face_centroid(_fh);
278 }
279
281 Point calc_face_centroid(FaceHandle _fh) const;
282
284 void update_normal(HalfedgeHandle _heh, const double _feature_angle = 0.8)
285 { this->set_normal(_heh, calc_halfedge_normal(_heh,_feature_angle)); }
286
296 void update_halfedge_normals(const double _feature_angle = 0.8);
297
310 virtual Normal calc_halfedge_normal(HalfedgeHandle _heh, const double _feature_angle = 0.8) const;
311
312
315 bool is_estimated_feature_edge(HalfedgeHandle _heh, const double _feature_angle) const;
316
318 void update_normal(VertexHandle _vh)
319 { this->set_normal(_vh, calc_vertex_normal(_vh)); }
320
330 void update_vertex_normals();
331
344 Normal calc_vertex_normal(VertexHandle _vh) const;
345
353 void calc_vertex_normal_fast(VertexHandle _vh, Normal& _n) const;
354 void calc_vertex_normal_correct(VertexHandle _vh, Normal& _n) const;
355 void calc_vertex_normal_loop(VertexHandle _vh, Normal& _n) const;
356
357
359
360 // --- Geometry API - still in development ---
361
364 void calc_edge_vector(EdgeHandle _eh, Normal& _edge_vec) const
365 {
366 _edge_vec = calc_edge_vector(_eh);
367 }
368
371 Normal calc_edge_vector(EdgeHandle _eh) const
372 {
373 return calc_edge_vector(this->halfedge_handle(_eh,0));
374 }
375
378 void calc_edge_vector(HalfedgeHandle _heh, Normal& _edge_vec) const
379 {
380 _edge_vec = calc_edge_vector(_heh);
381 }
382
385 Normal calc_edge_vector(HalfedgeHandle _heh) const
386 {
387 return this->point(this->to_vertex_handle(_heh)) -
388 this->point(this->from_vertex_handle(_heh));
389 }
390
391 // Calculates the length of the edge _eh
392 Scalar calc_edge_length(EdgeHandle _eh) const
393 { return calc_edge_length(this->halfedge_handle(_eh,0)); }
394
397 Scalar calc_edge_length(HalfedgeHandle _heh) const
398 { return (Scalar)sqrt(calc_edge_sqr_length(_heh)); }
399
400 Scalar calc_edge_sqr_length(EdgeHandle _eh) const
401 { return calc_edge_sqr_length(this->halfedge_handle(_eh,0)); }
402
403 Scalar calc_edge_sqr_length(HalfedgeHandle _heh) const
404 {
405 Normal edge_vec;
406 calc_edge_vector(_heh, edge_vec);
407 return edge_vec.sqrnorm();
408 }
409
414 void calc_sector_vectors(HalfedgeHandle _in_heh, Normal& _vec0, Normal& _vec1) const
415 {
416 calc_edge_vector(this->next_halfedge_handle(_in_heh), _vec0);//p2 - p1
417 calc_edge_vector(this->opposite_halfedge_handle(_in_heh), _vec1);//p0 - p1
418 }
419
425 Scalar calc_sector_angle(HalfedgeHandle _in_heh) const
426 {
427 Normal v0, v1;
428 calc_sector_vectors(_in_heh, v0, v1);
429 Scalar denom = v0.norm()*v1.norm();
430 if (is_zero(denom))
431 {
432 return 0;
433 }
434 Scalar cos_a = dot(v0 , v1) / denom;
435 if (this->is_boundary(_in_heh))
436 {//determine if the boundary sector is concave or convex
437 FaceHandle fh(this->face_handle(this->opposite_halfedge_handle(_in_heh)));
438 Normal f_n(calc_face_normal(fh));//this normal is (for convex fh) OK
439 Scalar sign_a = dot(cross(v0, v1), f_n);
440 return angle(cos_a, sign_a);
441 }
442 else
443 {
444 return acos(sane_aarg(cos_a));
445 }
446 }
447
448 // calculate the cos and the sin of angle <(_in_heh,next_halfedge(_in_heh))
449 /*
450 void calc_sector_angle_cos_sin(HalfedgeHandle _in_heh, Scalar& _cos_a, Scalar& _sin_a) const
451 {
452 Normal in_vec, out_vec;
453 calc_edge_vector(_in_heh, in_vec);
454 calc_edge_vector(next_halfedge_handle(_in_heh), out_vec);
455 Scalar denom = in_vec.norm()*out_vec.norm();
456 if (is_zero(denom))
457 {
458 _cos_a = 1;
459 _sin_a = 0;
460 }
461 else
462 {
463 _cos_a = dot(in_vec, out_vec)/denom;
464 _sin_a = cross(in_vec, out_vec).norm()/denom;
465 }
466 }
467 */
470 void calc_sector_normal(HalfedgeHandle _in_heh, Normal& _sector_normal) const
471 {
472 Normal vec0, vec1;
473 calc_sector_vectors(_in_heh, vec0, vec1);
474 _sector_normal = cross(vec0, vec1);//(p2-p1)^(p0-p1)
475 }
476
480 Scalar calc_sector_area(HalfedgeHandle _in_heh) const
481 {
482 Normal sector_normal;
483 calc_sector_normal(_in_heh, sector_normal);
484 return sector_normal.norm()/2;
485 }
486
489 Scalar calc_dihedral_angle_fast(HalfedgeHandle _heh) const
490 {
491 // Make sure that we have face normals on the mesh
492 assert(Kernel::has_face_normals());
493
494 if (this->is_boundary(this->edge_handle(_heh)))
495 {//the dihedral angle at a boundary edge is 0
496 return 0;
497 }
498 const Normal& n0 = this->normal(this->face_handle(_heh));
499 const Normal& n1 = this->normal(this->face_handle(this->opposite_halfedge_handle(_heh)));
500 Normal he;
501 calc_edge_vector(_heh, he);
502 Scalar da_cos = dot(n0, n1);
503 //should be normalized, but we need only the sign
504 Scalar da_sin_sign = dot(cross(n0, n1), he);
505 return angle(da_cos, da_sin_sign);
506 }
507
510 Scalar calc_dihedral_angle_fast(EdgeHandle _eh) const
511 { return calc_dihedral_angle_fast(this->halfedge_handle(_eh,0)); }
512
513 // calculates the dihedral angle on the halfedge _heh
514 Scalar calc_dihedral_angle(HalfedgeHandle _heh) const
515 {
516 if (this->is_boundary(this->edge_handle(_heh)))
517 {//the dihedral angle at a boundary edge is 0
518 return 0;
519 }
520 Normal n0, n1, he;
521 calc_sector_normal(_heh, n0);
522 calc_sector_normal(this->opposite_halfedge_handle(_heh), n1);
523 calc_edge_vector(_heh, he);
524 Scalar denom = n0.norm()*n1.norm();
525 if (denom == Scalar(0))
526 {
527 return 0;
528 }
529 Scalar da_cos = dot(n0, n1)/denom;
530 //should be normalized, but we need only the sign
531 Scalar da_sin_sign = dot(cross(n0, n1), he);
532 return angle(da_cos, da_sin_sign);
533 }
534
535 // calculates the dihedral angle on the edge _eh
536 Scalar calc_dihedral_angle(EdgeHandle _eh) const
537 { return calc_dihedral_angle(this->halfedge_handle(_eh,0)); }
538
541 unsigned int find_feature_edges(Scalar _angle_tresh = OpenMesh::deg_to_rad(44.0));
542 // --- misc ---
543
545 inline void split(FaceHandle _fh, const Point& _p)
546 { Kernel::split(_fh, add_vertex(_p)); }
547
548 inline void split(FaceHandle _fh, VertexHandle _vh)
549 { Kernel::split(_fh, _vh); }
550
551 inline void split(EdgeHandle _eh, const Point& _p)
552 { Kernel::split_edge(_eh, add_vertex(_p)); }
553
554 inline void split(EdgeHandle _eh, VertexHandle _vh)
555 { Kernel::split_edge(_eh, _vh); }
556
557 private:
558 struct PointIs3DTag {};
559 struct PointIsNot3DTag {};
560 Normal calc_face_normal_impl(FaceHandle, PointIs3DTag) const;
561 Normal calc_face_normal_impl(FaceHandle, PointIsNot3DTag) const;
562 Normal calc_face_normal_impl(const Point&, const Point&, const Point&, PointIs3DTag) const;
563 Normal calc_face_normal_impl(const Point&, const Point&, const Point&, PointIsNot3DTag) const;
564 };
565
591 template<typename LHS, typename KERNEL>
592 LHS mesh_cast(PolyMeshT<KERNEL> &rhs) {
593 return MeshCast<LHS, PolyMeshT<KERNEL>&>::cast(rhs);
594 }
595
596 template<typename LHS, typename KERNEL>
597 LHS mesh_cast(PolyMeshT<KERNEL> *rhs) {
598 return MeshCast<LHS, PolyMeshT<KERNEL>*>::cast(rhs);
599 }
600
601 template<typename LHS, typename KERNEL>
602 const LHS mesh_cast(const PolyMeshT<KERNEL> &rhs) {
603 return MeshCast<LHS, const PolyMeshT<KERNEL>&>::cast(rhs);
604 }
605
606 template<typename LHS, typename KERNEL>
607 const LHS mesh_cast(const PolyMeshT<KERNEL> *rhs) {
608 return MeshCast<LHS, const PolyMeshT<KERNEL>*>::cast(rhs);
609 }
610
611
612 //=============================================================================
613 } // namespace OpenMesh
614 //=============================================================================
615 #if defined(OM_INCLUDE_TEMPLATES) && !defined(OPENMESH_POLYMESH_C)
616 # define OPENMESH_POLYMESH_TEMPLATES
617 # include "PolyMeshT.cc"
618 #endif
619 //=============================================================================
620 #endif // OPENMESH_POLYMESHT_HH defined
621 //=============================================================================
OpenMesh::Attributes::Normal
Add normals to mesh item (vertices/faces)
Definition: Attributes.hh:87
OpenMesh::PolyMeshT::calc_vertex_normal_fast
void calc_vertex_normal_fast(VertexHandle _vh, Normal &_n) const
Different methods for calculation of the normal at _vh:
Definition: PolyMeshT.cc:387
OpenMesh::PolyMeshT::calc_edge_vector
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:385
OpenMesh::PolyMeshT::Point
Kernel::Point Point
Coordinate type.
Definition: PolyMeshT.hh:115
OpenMesh::Attributes::Color
Add colors to mesh item (vertices/faces/edges)
Definition: Attributes.hh:88
OpenMesh::PolyMeshT::VertexEdgeIter
Kernel::VertexEdgeIter VertexEdgeIter
Circulator.
Definition: PolyMeshT.hh:168
OpenMesh::mesh_cast
LHS mesh_cast(PolyMeshT< KERNEL > &rhs)
Cast a mesh with different but identical traits into each other.
Definition: PolyMeshT.hh:592
OpenMesh::PolyMeshT::Normal
Kernel::Normal Normal
Normal type.
Definition: PolyMeshT.hh:117
OpenMesh::PolyMeshT::calc_face_normal
virtual Normal calc_face_normal(FaceHandle _fh) const
Calculate normal vector for face _fh.
Definition: PolyMeshT.cc:102
OpenMesh::PolyMeshT::ConstVertexEdgeIter
Kernel::ConstVertexEdgeIter ConstVertexEdgeIter
Circulator.
Definition: PolyMeshT.hh:178
OpenMesh::PolyMeshT::Halfedge
Kernel::Halfedge Halfedge
Halfedge type.
Definition: PolyMeshT.hh:129
OpenMesh::PolyMeshT::This
PolyMeshT< Kernel > This
Self type. Used to specify iterators/circulators.
Definition: PolyMeshT.hh:99
OpenMesh::PolyMeshT::Edge
Kernel::Edge Edge
Edge type.
Definition: PolyMeshT.hh:131
OpenMesh::PolyMeshT::is_trimesh
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
OpenMesh::Attributes::TexCoord1D
Add 1D texture coordinates (vertices, halfedges)
Definition: Attributes.hh:91
OpenMesh::PolyMeshT::VertexVertexIter
Kernel::VertexVertexIter VertexVertexIter
Circulator.
Definition: PolyMeshT.hh:165
OpenMesh::PolyMeshT::ConstVertexOHalfedgeIter
Kernel::ConstVertexOHalfedgeIter ConstVertexOHalfedgeIter
Circulator.
Definition: PolyMeshT.hh:176
OpenMesh::PolyMeshT::calc_edge_vector
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:378
OpenMesh::PolyMeshT::VertexOHalfedgeIter
Kernel::VertexOHalfedgeIter VertexOHalfedgeIter
Circulator.
Definition: PolyMeshT.hh:166
OpenMesh::PolyMeshT::calc_halfedge_normal
virtual Normal calc_halfedge_normal(HalfedgeHandle _heh, const double _feature_angle=0.8) const
Calculate halfedge normal for one specific halfedge.
Definition: PolyMeshT.cc:289
OpenMesh::PolyMeshT::TexCoord2D
Kernel::TexCoord2D TexCoord2D
TexCoord2D type.
Definition: PolyMeshT.hh:123
OpenMesh::PolyMeshT
Base type for a polygonal mesh.
Definition: PolyMeshT.hh:94
OpenMesh::PolyMeshT::calc_sector_vectors
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:414
OpenMesh::PolyMeshT::Face
Kernel::Face Face
Face type.
Definition: PolyMeshT.hh:133
OpenMesh::PolyMeshT::ConstVertexVertexIter
Kernel::ConstVertexVertexIter ConstVertexVertexIter
Circulator.
Definition: PolyMeshT.hh:175
OpenMesh::PolyMeshT::new_vertex_dirty
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:228
OpenMesh::PolyMeshT::ConstFaceVertexIter
Kernel::ConstFaceVertexIter ConstFaceVertexIter
Circulator.
Definition: PolyMeshT.hh:180
OpenMesh::PolyMeshT::calc_vertex_normal
Normal calc_vertex_normal(VertexHandle _vh) const
Calculate vertex normal for one specific vertex.
Definition: PolyMeshT.cc:373
OpenMesh::PolyMeshT::calc_edge_length
Scalar calc_edge_length(HalfedgeHandle _heh) const
Calculates the length of the edge _heh.
Definition: PolyMeshT.hh:397
OpenMesh::PolyMeshT::Vertex
Kernel::Vertex Vertex
Vertex type.
Definition: PolyMeshT.hh:127
OpenMesh::PolyMeshT::FaceVertexIter
Kernel::FaceVertexIter FaceVertexIter
Circulator.
Definition: PolyMeshT.hh:170
OpenMesh::PolyMeshT::add_vertex
VertexHandle add_vertex(const Point &_p)
Alias for new_vertex(const Point&).
Definition: PolyMeshT.hh:236
OpenMesh::PolyMeshT::calc_edge_vector
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:371
OpenMesh::PolyMeshT::TexCoord1D
Kernel::TexCoord1D TexCoord1D
TexCoord1D type.
Definition: PolyMeshT.hh:121
OpenMesh::PolyMeshT::ConstVertexIHalfedgeIter
Kernel::ConstVertexIHalfedgeIter ConstVertexIHalfedgeIter
Circulator.
Definition: PolyMeshT.hh:177
OpenMesh::PolyMeshT::calc_sector_area
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:480
OpenMesh::sane_aarg
T sane_aarg(T _aarg)
Trigonometry/angles - related.
Definition: MathDefs.hh:127
OpenMesh::Attributes::TexCoord2D
Add 2D texture coordinates (vertices, halfedges)
Definition: Attributes.hh:92
OpenMesh::PolyMeshT::ConstFaceHalfedgeIter
Kernel::ConstFaceHalfedgeIter ConstFaceHalfedgeIter
Circulator.
Definition: PolyMeshT.hh:181
OpenMesh::PolyMeshT::VertexHandle
Kernel::VertexHandle VertexHandle
Handle for referencing the corresponding item.
Definition: PolyMeshT.hh:139
OpenMesh::PolyMeshT::split
void split(FaceHandle _fh, const Point &_p)
Face split (= 1-to-n split)
Definition: PolyMeshT.hh:545
OpenMesh::PolyMeshT::new_vertex
VertexHandle new_vertex()
Uses default copy and assignment operator.
Definition: PolyMeshT.hh:202
OpenMesh::PolyMeshT::calc_vertex_normal_correct
void calc_vertex_normal_correct(VertexHandle _vh, Normal &_n) const
Compute normals for all primitives.
Definition: PolyMeshT.cc:397
OpenMesh::MeshCast
Cast a mesh with different but identical traits into each other.
Definition: FinalMeshItemsT.hh:183
OpenMesh
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:64
OpenMesh::PolyMeshT::update_vertex_normals
void update_vertex_normals()
Update normal vectors for all vertices.
Definition: PolyMeshT.cc:448
OpenMesh::PolyMeshT::Scalar
Kernel::Scalar Scalar
Scalar type.
Definition: PolyMeshT.hh:113
OpenMesh::PolyMeshT::is_estimated_feature_edge
bool is_estimated_feature_edge(HalfedgeHandle _heh, const double _feature_angle) const
identifies feature edges w.r.t.
Definition: PolyMeshT.cc:342
OpenMesh::PolyMeshT::add_vertex_dirty
VertexHandle add_vertex_dirty(const Point &_p)
Alias for new_vertex_dirty().
Definition: PolyMeshT.hh:240
OpenMesh::PolyMeshT::calc_dihedral_angle_fast
Scalar calc_dihedral_angle_fast(HalfedgeHandle _heh) const
calculates the dihedral angle on the halfedge _heh
Definition: PolyMeshT.hh:489
OpenMesh::angle
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
OpenMesh::PolyMeshT::calc_face_centroid
void calc_face_centroid(FaceHandle _fh, Point &_pt) const
calculates the average of the vertices defining _fh
Definition: PolyMeshT.hh:276
OpenMesh::is_zero
bool is_zero(const T &_a, Real _eps)
comparison operators with user-selected precision control
Definition: MathDefs.hh:66
OpenMesh::PolyMeshT::update_halfedge_normals
void update_halfedge_normals(const double _feature_angle=0.8)
Update normal vectors for all halfedges.
Definition: PolyMeshT.cc:274
OpenMesh::PolyMeshT::update_normal
void update_normal(FaceHandle _fh)
Update normal for face _fh.
Definition: PolyMeshT.hh:259
OpenMesh::PolyMeshT::FaceFaceIter
Kernel::FaceFaceIter FaceFaceIter
Circulator.
Definition: PolyMeshT.hh:173
OpenMesh::PolyMeshT::FaceHalfedgeIter
Kernel::FaceHalfedgeIter FaceHalfedgeIter
Circulator.
Definition: PolyMeshT.hh:171
OpenMesh::PolyMeshT::ConstFaceEdgeIter
Kernel::ConstFaceEdgeIter ConstFaceEdgeIter
Circulator.
Definition: PolyMeshT.hh:182
OpenMesh::PolyMeshT::update_face_normals
void update_face_normals()
Update normal vectors for all faces.
Definition: PolyMeshT.cc:259
OpenMesh::cross
osg::Vec3f cross(const osg::Vec3f &_v1, const osg::Vec3f &_v2)
Adapter for osg vector member computing a scalar product.
Definition: VectorAdapter.hh:196
OpenMesh::PolyMeshT::Color
Kernel::Color Color
Color type.
Definition: PolyMeshT.hh:119
OpenMesh::Attributes::TexCoord3D
Add 3D texture coordinates (vertices, halfedges)
Definition: Attributes.hh:93
OpenMesh::PolyMeshT::ConstVertexFaceIter
Kernel::ConstVertexFaceIter ConstVertexFaceIter
Circulator.
Definition: PolyMeshT.hh:179
OpenMesh::PolyMeshT::new_vertex
VertexHandle new_vertex(const Point &_p)
Adds a new vertex initialized to a custom position.
Definition: PolyMeshT.hh:210
OpenMesh::PolyMeshT::calc_vertex_normal_loop
void calc_vertex_normal_loop(VertexHandle _vh, Normal &_n) const
Compute normals for all primitives.
Definition: PolyMeshT.cc:425
OpenMesh::PolyMeshT::FaceEdgeIter
Kernel::FaceEdgeIter FaceEdgeIter
Circulator.
Definition: PolyMeshT.hh:172
OpenMesh::PolyMeshT::calc_edge_vector
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:364
OpenMesh::PolyMeshT::calc_dihedral_angle_fast
Scalar calc_dihedral_angle_fast(EdgeHandle _eh) const
calculates the dihedral angle on the edge _eh
Definition: PolyMeshT.hh:510
OpenMesh::PolyMeshT::find_feature_edges
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
OpenMesh::PolyMeshT::update_normals
void update_normals()
Compute normals for all primitives.
Definition: PolyMeshT.cc:241
OpenMesh::PolyMeshT::VertexIHalfedgeIter
Kernel::VertexIHalfedgeIter VertexIHalfedgeIter
Circulator.
Definition: PolyMeshT.hh:167
OpenMesh::PolyMeshT::calc_sector_normal
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:470
OpenMesh::PolyMeshT::ConstFaceFaceIter
Kernel::ConstFaceFaceIter ConstFaceFaceIter
Circulator.
Definition: PolyMeshT.hh:183
OpenMesh::PolyMeshT::update_normal
void update_normal(VertexHandle _vh)
Update normal for vertex _vh.
Definition: PolyMeshT.hh:318
OpenMesh::PolyMeshT::calc_sector_angle
Scalar calc_sector_angle(HalfedgeHandle _in_heh) const
calculates the sector angle.
Definition: PolyMeshT.hh:425
OpenMesh::PolyMeshT::VertexFaceIter
Kernel::VertexFaceIter VertexFaceIter
Circulator.
Definition: PolyMeshT.hh:169
OpenMesh::PolyMeshT::update_normal
void update_normal(HalfedgeHandle _heh, const double _feature_angle=0.8)
Update normal for halfedge _heh.
Definition: PolyMeshT.hh:284
OpenMesh::PolyMeshT::TexCoord3D
Kernel::TexCoord3D TexCoord3D
TexCoord3D type.
Definition: PolyMeshT.hh:125
OpenMesh::PolyMeshT::is_polymesh
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
OpenMesh::dot
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