OpenMesh
TriConnectivity.hh
1 /* ========================================================================= *
2  * *
3  * OpenMesh *
4  * Copyright (c) 2001-2015, RWTH-Aachen University *
5  * Department of Computer Graphics and Multimedia *
6  * All rights reserved. *
7  * www.openmesh.org *
8  * *
9  *---------------------------------------------------------------------------*
10  * This file is part of OpenMesh. *
11  *---------------------------------------------------------------------------*
12  * *
13  * Redistribution and use in source and binary forms, with or without *
14  * modification, are permitted provided that the following conditions *
15  * are met: *
16  * *
17  * 1. Redistributions of source code must retain the above copyright notice, *
18  * this list of conditions and the following disclaimer. *
19  * *
20  * 2. Redistributions in binary form must reproduce the above copyright *
21  * notice, this list of conditions and the following disclaimer in the *
22  * documentation and/or other materials provided with the distribution. *
23  * *
24  * 3. Neither the name of the copyright holder nor the names of its *
25  * contributors may be used to endorse or promote products derived from *
26  * this software without specific prior written permission. *
27  * *
28  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS *
29  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *
30  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *
31  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER *
32  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, *
33  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, *
34  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR *
35  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF *
36  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING *
37  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS *
38  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
39  * *
40  * ========================================================================= */
41 
42 
43 
44 #ifndef OPENMESH_TRICONNECTIVITY_HH
45 #define OPENMESH_TRICONNECTIVITY_HH
46 
47 #include <OpenMesh/Core/Mesh/PolyConnectivity.hh>
48 
49 namespace OpenMesh {
50 
53 class OPENMESHDLLEXPORT TriConnectivity : public PolyConnectivity
54 {
55 public:
56 
57  TriConnectivity() {}
58  virtual ~TriConnectivity() {}
59 
60  inline static bool is_triangles()
61  { return true; }
62 
66  inline void assign_connectivity(const TriConnectivity& _other)
68 
69  inline void assign_connectivity(const PolyConnectivity& _other)
70  {
72  triangulate();
73  }
74 
79 
88  FaceHandle add_face(const VertexHandle* _vhandles, size_t _vhs_size);
89 
98  FaceHandle add_face(const std::vector<VertexHandle>& _vhandles);
99 
110  FaceHandle add_face(VertexHandle _vh0, VertexHandle _vh1, VertexHandle _vh2);
111 
113 
118  {
119  return is_boundary(_heh) ? InvalidVertexHandle :
120  to_vertex_handle(next_halfedge_handle(_heh));
121  }
122 
127  { return opposite_vh(opposite_halfedge_handle(_heh)); }
128 
132 
133 
138  bool is_collapse_ok(HalfedgeHandle _heh);
139 
141  HalfedgeHandle vertex_split(VertexHandle v0, VertexHandle v1,
142  VertexHandle vl, VertexHandle vr);
143 
145  bool is_flip_ok(EdgeHandle _eh) const;
146 
149  void flip(EdgeHandle _eh);
150 
151 
163  void split(EdgeHandle _eh, VertexHandle _vh);
164 
180  inline void split_edge(EdgeHandle _eh, VertexHandle _vh) { TriConnectivity::split(_eh, _vh); }
181 
194  void split_copy(EdgeHandle _eh, VertexHandle _vh);
195 
213 
219  inline void split(FaceHandle _fh, VertexHandle _vh)
220  { PolyConnectivity::split(_fh, _vh); }
221 
227  inline void split_copy(FaceHandle _fh, VertexHandle _vh)
228  { PolyConnectivity::split_copy(_fh, _vh); }
229 
231 
232 private:
234  HalfedgeHandle insert_loop(HalfedgeHandle _hh);
236  HalfedgeHandle insert_edge(VertexHandle _vh,
237  HalfedgeHandle _h0, HalfedgeHandle _h1);
238 };
239 
240 }
241 
242 #endif//OPENMESH_TRICONNECTIVITY_HH
void split_copy(FaceHandle _fh, VertexHandle _vh)
Face split (= 1-to-n split).
Definition: PolyConnectivity.cc:1138
Handle for a halfedge entity.
Definition: Handles.hh:127
void split(EdgeHandle _eh, VertexHandle _vh)
Edge split (= 2-to-4 split)
Definition: TriConnectivity.cc:387
Handle for a vertex entity.
Definition: Handles.hh:120
VertexHandle opposite_vh(HalfedgeHandle _heh) const
Returns the opposite vertex to the halfedge _heh in the face referenced by _heh returns InvalidVertex...
Definition: TriConnectivity.hh:117
Handle for a edge entity.
Definition: Handles.hh:134
void split_edge_copy(EdgeHandle _eh, VertexHandle _vh)
Edge split (= 2-to-4 split)
Definition: TriConnectivity.hh:212
void split(FaceHandle _fh, VertexHandle _vh)
Face split (= 1-to-n split).
Definition: PolyConnectivity.cc:1095
void assign_connectivity(const TriConnectivity &_other)
assign_connectivity() methods.
Definition: TriConnectivity.hh:66
void split(FaceHandle _fh, VertexHandle _vh)
Face split (= 1-to-3) split, calls corresponding PolyMeshT function).
Definition: TriConnectivity.hh:219
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:59
void split_copy(FaceHandle _fh, VertexHandle _vh)
Face split (= 1-to-3) split, calls corresponding PolyMeshT function).
Definition: TriConnectivity.hh:227
Connectivity Class for Triangle Meshes.
Definition: TriConnectivity.hh:53
Handle for a face entity.
Definition: Handles.hh:141
void split_edge(EdgeHandle _eh, VertexHandle _vh)
Edge split (= 2-to-4 split)
Definition: TriConnectivity.hh:180
void split_copy(EdgeHandle _eh, VertexHandle _vh)
Edge split (= 2-to-4 split)
Definition: TriConnectivity.cc:484
Connectivity Class for polygonal meshes.
Definition: PolyConnectivity.hh:56
void assign_connectivity(const PolyConnectivity &_other)
assign_connectivity() method.
Definition: PolyConnectivity.hh:391
VertexHandle opposite_he_opposite_vh(HalfedgeHandle _heh) const
Returns the opposite vertex to the opposite halfedge of _heh in the face referenced by it returns Inv...
Definition: TriConnectivity.hh:126

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