OpenMesh
StripifierT.hh
1 /* ========================================================================= *
2  * *
3  * OpenMesh *
4  * Copyright (c) 2001-2022, 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 //=============================================================================
45 //
46 // CLASS StripifierT
47 //
48 //=============================================================================
49 
50 
51 #ifndef OPENMESH_STRIPIFIERT_HH
52 #define OPENMESH_STRIPIFIERT_HH
53 
54 
55 //== INCLUDES =================================================================
56 
57 #include <vector>
58 #include <OpenMesh/Core/Utils/Property.hh>
59 
60 
61 //== FORWARDDECLARATIONS ======================================================
62 
63 
64 //== NAMESPACES ===============================================================
65 
66 namespace OpenMesh {
67 
68 
69 //== CLASS DEFINITION =========================================================
70 
71 
72 
73 
78 template <class Mesh>
80 {
81 public:
82 
83  typedef unsigned int Index;
84  typedef std::vector<Index> Strip;
85  typedef typename Strip::const_iterator IndexIterator;
86  typedef std::vector<Strip> Strips;
87  typedef typename Strips::const_iterator StripsIterator;
88 
89 
91  explicit StripifierT(Mesh& _mesh);
92 
94  ~StripifierT();
95 
97  size_t stripify();
98 
100  void clear() { Strips().swap(strips_); }
101 
103  size_t n_strips() const { return strips_.size(); }
104 
106  bool is_valid() const { return !strips_.empty(); }
107 
109  StripsIterator begin() const { return strips_.begin(); }
111  StripsIterator end() const { return strips_.end(); }
112 
113 
114 private:
115 
116  typedef std::vector<typename Mesh::FaceHandle> FaceHandles;
117 
118 
120  void build_strips();
121 
123  void build_strip(typename Mesh::HalfedgeHandle _start_hh,
124  Strip& _strip,
125  FaceHandles& _faces);
126 
127  FPropHandleT<bool>::reference processed(typename Mesh::FaceHandle _fh) {
128  return mesh_.property(processed_, _fh);
129  }
130  FPropHandleT<bool>::reference used(typename Mesh::FaceHandle _fh) {
131  return mesh_.property(used_, _fh);
132  }
133 
134 
135 
136 private:
137 
138  Mesh& mesh_;
139  Strips strips_;
140  FPropHandleT<bool> processed_, used_;
141 };
142 
143 
144 //=============================================================================
145 } // namespace OpenMesh
146 //=============================================================================
147 #if defined(OM_INCLUDE_TEMPLATES) && !defined(OPENMESH_STRIPIFIERT_C)
148 #define OPENMESH_STRIPIFIERT_TEMPLATES
149 #include "StripifierT_impl.hh"
150 #endif
151 //=============================================================================
152 #endif // OPENMESH_STRIPIFIERT_HH defined
153 //=============================================================================
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:59
Kernel::FaceHandle FaceHandle
Scalar type.
Definition: PolyMeshT.hh:139
Kernel::HalfedgeHandle HalfedgeHandle
Scalar type.
Definition: PolyMeshT.hh:137
Handle representing a face property.
Definition: Property.hh:462
This class decomposes a triangle mesh into several triangle strips.
Definition: StripifierT.hh:80
void clear()
delete all strips
Definition: StripifierT.hh:100
StripsIterator end() const
Access strips.
Definition: StripifierT.hh:111
size_t stripify()
Compute triangle strips, returns number of strips.
Definition: StripifierT_impl.hh:82
~StripifierT()
Destructor.
Definition: StripifierT_impl.hh:75
StripifierT(Mesh &_mesh)
Default constructor.
Definition: StripifierT_impl.hh:67
bool is_valid() const
are strips computed?
Definition: StripifierT.hh:106
StripsIterator begin() const
Access strips.
Definition: StripifierT.hh:109
size_t n_strips() const
returns number of strips
Definition: StripifierT.hh:103

Project OpenMesh, ©  Visual Computing Institute, RWTH Aachen. Documentation generated using doxygen .