SubdividerT.hh 7.25 KB
Newer Older
Jan Möbius's avatar
Jan Möbius committed
1
/* ========================================================================= *
2
3
 *                                                                           *
 *                               OpenMesh                                    *
Jan Möbius's avatar
Jan Möbius committed
4
5
6
7
 *           Copyright (c) 2001-2015, RWTH-Aachen University                 *
 *           Department for Computer Graphics and Multimedia                 *
 *                          All rights reserved.                             *
 *                            www.openmesh.org                               *
8
 *                                                                           *
Jan Möbius's avatar
Jan Möbius committed
9
10
11
 *---------------------------------------------------------------------------*
 * This file is part of OpenMesh.                                            *
 *---------------------------------------------------------------------------*
12
 *                                                                           *
Jan Möbius's avatar
Jan Möbius committed
13
14
15
 * Redistribution and use in source and binary forms, with or without        *
 * modification, are permitted provided that the following conditions        *
 * are met:                                                                  *
16
 *                                                                           *
Jan Möbius's avatar
Jan Möbius committed
17
18
 * 1. Redistributions of source code must retain the above copyright notice, *
 *    this list of conditions and the following disclaimer.                  *
19
 *                                                                           *
Jan Möbius's avatar
Jan Möbius committed
20
21
22
 * 2. Redistributions in binary form must reproduce the above copyright      *
 *    notice, this list of conditions and the following disclaimer in the    *
 *    documentation and/or other materials provided with the distribution.   *
23
 *                                                                           *
Jan Möbius's avatar
Jan Möbius committed
24
25
26
 * 3. Neither the name of the copyright holder nor the names of its          *
 *    contributors may be used to endorse or promote products derived from   *
 *    this software without specific prior written permission.               *
27
 *                                                                           *
Jan Möbius's avatar
Jan Möbius committed
28
29
30
31
32
33
34
35
36
37
38
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS       *
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A           *
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER *
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,  *
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,       *
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR        *
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF    *
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING      *
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS        *
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.              *
Jan Möbius's avatar
Jan Möbius committed
39
40
 *                                                                           *
 * ========================================================================= */
41
42
43
44
45
46
47

/*===========================================================================*\
 *                                                                           *             
 *   $Revision$                                                         *
 *   $Date$                   *
 *                                                                           *
\*===========================================================================*/
Jan Möbius's avatar
Jan Möbius committed
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127

/** \file SubdividerT.hh
    
 */

//=============================================================================
//
//  CLASS SubdividerT
//
//=============================================================================

#ifndef OPENMESH_SUBDIVIDER_UNIFORM_SUDIVIDERT_HH
#define OPENMESH_SUBDIVIDER_UNIFORM_SUDIVIDERT_HH

//== INCLUDE ==================================================================

#include <OpenMesh/Core/System/config.hh>
#include <OpenMesh/Core/Utils/Noncopyable.hh>
#if defined(_DEBUG) || defined(DEBUG)
// Makes life lot easier, when playing/messing around with low-level topology
// changing methods of OpenMesh
#  include <OpenMesh/Tools/Utils/MeshCheckerT.hh>
#  define ASSERT_CONSISTENCY( T, m ) \
     assert(OpenMesh::Utils::MeshCheckerT<T>(m).check())
#else
#  define ASSERT_CONSISTENCY( T, m )
#endif

//== NAMESPACE ================================================================

namespace OpenMesh   {
namespace Subdivider {
namespace Uniform    {


//== CLASS DEFINITION =========================================================

/** Abstract base class for uniform subdivision algorithms.
 *
 *  A derived class must overload the following functions:
 *  -# name()
 *  -# prepare()
 *  -# subdivide()
 *  -# cleanup()
 */
template <typename MeshType, typename RealType=float>
class SubdividerT : private Utils::Noncopyable
{
public:

  typedef MeshType mesh_t;
  typedef RealType real_t;

public:

  /// \name Constructors
  //@{
  /// Constructor to be used with interface 2
  /// \see attach(), operator()(size_t), detach()
  SubdividerT(void) : attached_(NULL) { }

  /// Constructor to be used with interface 1 (calls attach())
  /// \see operator()( MeshType&, size_t )
  SubdividerT( MeshType &_m ) : attached_(NULL) {  attach(_m); }

  //@}

  /// Descructor (calls detach())
  virtual ~SubdividerT() 
  { detach(); }

  /// Return name of subdivision algorithm
  virtual const char *name( void ) const = 0;


public: /// \name Interface 1

  //@{
  /// Subdivide the mesh \c _m \c _n times.
  /// \see SubdividerT(MeshType&)
Jan Möbius's avatar
Jan Möbius committed
128
  bool operator () ( MeshType& _m, size_t _n , const bool _update_points  = true)
Jan Möbius's avatar
Jan Möbius committed
129
  {    
Jan Möbius's avatar
Jan Möbius committed
130
    return prepare(_m) && subdivide( _m, _n , _update_points ) && cleanup( _m );
Jan Möbius's avatar
Jan Möbius committed
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
  }
  //@}

public: /// \name Interface 2
  //@{
  /// Attach mesh \c _m to self
  /// \see SubdividerT(), operator()(size_t), detach()
  bool attach( MeshType& _m )
  {
    if ( attached_ == &_m )
      return true;

    detach();
    if (prepare( _m ))
    {
      attached_ = &_m;
      return true;
    }
    return false;
  }

  /// Subdivide the attached \c _n times.
  /// \see SubdividerT(), attach(), detach()
Jan Möbius's avatar
Jan Möbius committed
154
  bool operator()( size_t _n , const bool _update_points = true)
Jan Möbius's avatar
Jan Möbius committed
155
  {
Jan Möbius's avatar
Jan Möbius committed
156
    return attached_ ? subdivide( *attached_, _n , _update_points) : false;
Jan Möbius's avatar
Jan Möbius committed
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
  }

  /// Detach an eventually attached mesh.
  /// \see SubdividerT(), attach(), operator()(size_t)
  void detach(void)
  {
    if ( attached_ )
    {
      cleanup( *attached_ );
      attached_ = NULL;
    }
  }
  //@}

protected: 

  /// \name Overload theses methods
  //@{
  /// Prepare mesh, e.g. add properties
  virtual bool prepare( MeshType& _m ) = 0;

  /// Subdivide mesh \c _m \c _n times
Jan Möbius's avatar
Jan Möbius committed
179
  virtual bool subdivide( MeshType& _m, size_t _n, const bool _update_points = true) = 0;
Jan Möbius's avatar
Jan Möbius committed
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197

  /// Cleanup mesh after usage, e.g. remove added properties
  virtual bool cleanup( MeshType& _m ) = 0;
  //@}

private:
 
  MeshType *attached_;

};

//=============================================================================
} // namespace Uniform
} // namespace Subdivider
} // namespace OpenMesh
//=============================================================================
#endif // OPENMESH_SUBDIVIDER_UNIFORM_SUBDIVIDERT_HH
//=============================================================================