OpenMesh: OpenMesh/Core/Mesh/TriConnectivity.hh Source File

| 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 * $Revision$ *
45 * $Date$ *
46 * *
47 \*===========================================================================*/
48
49 #ifndef OPENMESH_TRICONNECTIVITY_HH
50 #define OPENMESH_TRICONNECTIVITY_HH
51
52 #include <OpenMesh/Core/Mesh/PolyConnectivity.hh>
53
54 namespace OpenMesh {
55
58 class OPENMESHDLLEXPORT TriConnectivity : public PolyConnectivity
59 {
60 public:
61
62 TriConnectivity() {}
63 virtual ~TriConnectivity() {}
64
65 inline static bool is_triangles()
66 { return true; }
67
71 inline void assign_connectivity(const TriConnectivity& _other)
72 { PolyConnectivity::assign_connectivity(_other); }
73
74 inline void assign_connectivity(const PolyConnectivity& _other)
75 {
76 PolyConnectivity::assign_connectivity(_other);
77 triangulate();
78 }
79
84
93 FaceHandle add_face(const VertexHandle* _vhandles, size_t _vhs_size);
94
103 FaceHandle add_face(const std::vector<VertexHandle>& _vhandles);
104
115 FaceHandle add_face(VertexHandle _vh0, VertexHandle _vh1, VertexHandle _vh2);
116
118
122 inline VertexHandle opposite_vh(HalfedgeHandle _heh) const
123 {
124 return is_boundary(_heh) ? InvalidVertexHandle :
125 to_vertex_handle(next_halfedge_handle(_heh));
126 }
127
131 VertexHandle opposite_he_opposite_vh(HalfedgeHandle _heh) const
132 { return opposite_vh(opposite_halfedge_handle(_heh)); }
133
137
138
143 bool is_collapse_ok(HalfedgeHandle _heh);
144
146 HalfedgeHandle vertex_split(VertexHandle v0, VertexHandle v1,
147 VertexHandle vl, VertexHandle vr);
148
150 bool is_flip_ok(EdgeHandle _eh) const;
151
154 void flip(EdgeHandle _eh);
155
156
168 void split(EdgeHandle _eh, VertexHandle _vh);
169
181 void split_copy(EdgeHandle _eh, VertexHandle _vh);
182
188 inline void split(FaceHandle _fh, VertexHandle _vh)
189 { PolyConnectivity::split(_fh, _vh); }
190
196 inline void split_copy(FaceHandle _fh, VertexHandle _vh)
197 { PolyConnectivity::split_copy(_fh, _vh); }
198
200
201 private:
203 HalfedgeHandle insert_loop(HalfedgeHandle _hh);
205 HalfedgeHandle insert_edge(VertexHandle _vh,
206 HalfedgeHandle _h0, HalfedgeHandle _h1);
207 };
208
209 }
210
211 #endif//OPENMESH_TRICONNECTIVITY_HH
OpenMesh::TriConnectivity::assign_connectivity
void assign_connectivity(const TriConnectivity &_other)
assign_connectivity() methods.
Definition: TriConnectivity.hh:71
OpenMesh::TriConnectivity
Connectivity Class for Triangle Meshes.
Definition: TriConnectivity.hh:58
OpenMesh::HalfedgeHandle
Handle for a halfedge entity.
Definition: Handles.hh:132
OpenMesh::PolyConnectivity::split
void split(FaceHandle _fh, VertexHandle _vh)
Face split (= 1-to-n split).
Definition: PolyConnectivity.cc:1093
OpenMesh::FaceHandle
Handle for a face entity.
Definition: Handles.hh:146
OpenMesh::TriConnectivity::split
void split(FaceHandle _fh, VertexHandle _vh)
Face split (= 1-to-3) split, calls corresponding PolyMeshT function).
Definition: TriConnectivity.hh:188
OpenMesh::PolyConnectivity::assign_connectivity
void assign_connectivity(const PolyConnectivity &_other)
assign_connectivity() method.
Definition: PolyConnectivity.hh:396
OpenMesh::TriConnectivity::opposite_he_opposite_vh
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:131
OpenMesh
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:64
OpenMesh::TriConnectivity::opposite_vh
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:122
OpenMesh::VertexHandle
Handle for a vertex entity.
Definition: Handles.hh:125
OpenMesh::PolyConnectivity::split_copy
void split_copy(FaceHandle _fh, VertexHandle _vh)
Face split (= 1-to-n split).
Definition: PolyConnectivity.cc:1136
OpenMesh::PolyConnectivity
Connectivity Class for polygonal meshes.
Definition: PolyConnectivity.hh:61
OpenMesh::EdgeHandle
Handle for a edge entity.
Definition: Handles.hh:139
OpenMesh::TriConnectivity::split_copy
void split_copy(FaceHandle _fh, VertexHandle _vh)
Face split (= 1-to-3) split, calls corresponding PolyMeshT function).
Definition: TriConnectivity.hh:196