CompositeT_impl.hh 10.5 KB
Newer Older
Jan Möbius's avatar
Jan Möbius committed
1
/* ========================================================================= *
2
3
 *                                                                           *
 *                               OpenMesh                                    *
Jan Möbius's avatar
Jan Möbius committed
4
 *           Copyright (c) 2001-2015, RWTH-Aachen University                 *
Jan Möbius's avatar
Typo    
Jan Möbius committed
5
 *           Department of Computer Graphics and Multimedia                  *
Jan Möbius's avatar
Jan Möbius committed
6
7
 *                          All rights reserved.                             *
 *                            www.openmesh.org                               *
8
 *                                                                           *
9
 *---------------------------------------------------------------------------*
Jan Möbius's avatar
Jan Möbius committed
10
11
 * This file is part of OpenMesh.                                            *
 *---------------------------------------------------------------------------*
12
 *                                                                           *
Jan Möbius's avatar
Jan Möbius committed
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
 * Redistribution and use in source and binary forms, with or without        *
 * modification, are permitted provided that the following conditions        *
 * are met:                                                                  *
 *                                                                           *
 * 1. Redistributions of source code must retain the above copyright notice, *
 *    this list of conditions and the following disclaimer.                  *
 *                                                                           *
 * 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.   *
 *                                                                           *
 * 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.               *
 *                                                                           *
 * 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
/** \file Adaptive/Composite/CompositeT_impl.hh
43

Jan Möbius's avatar
Jan Möbius committed
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
 */

//=============================================================================
//
//  CLASS CompositeT - IMPLEMENTATION
//
//=============================================================================

#define OPENMESH_SUBDIVIDER_ADAPTIVE_COMPOSITET_CC


//== INCLUDES =================================================================

#include <OpenMesh/Core/System/config.hh>
#include <OpenMesh/Core/System/omstream.hh>
59
#include <ostream>
Jan Möbius's avatar
Jan Möbius committed
60
61
62
63
64
65
66
67
#include <OpenMesh/Tools/Subdivider/Adaptive/Composite/CompositeT.hh>
#include <OpenMesh/Tools/Subdivider/Adaptive/Composite/RuleInterfaceT.hh>


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

namespace OpenMesh   { // BEGIN_NS_OPENMESH
namespace Subdivider { // BEGIN_NS_DECIMATER
Jan Möbius's avatar
Jan Möbius committed
68
namespace Adaptive   { // BEGIN_NS_ADAPTIVE
Jan Möbius's avatar
Jan Möbius committed
69
70


71
//== IMPLEMENTATION ==========================================================
Jan Möbius's avatar
Jan Möbius committed
72
73
74
75
76


template<class M>
bool
CompositeT<M> ::
77
initialize( void )
Jan Möbius's avatar
Jan Möbius committed
78
79
80
81
82
{
  typename Mesh::VertexIter  v_it;
  typename Mesh::FaceIter    f_it;
  typename Mesh::EdgeIter    e_it;
  const typename Mesh::Point zero_point(0.0, 0.0, 0.0);
83

Jan Möbius's avatar
Jan Möbius committed
84
  // ---------------------------------------- Init Vertices
85
  for (v_it = mesh_.vertices_begin(); v_it != mesh_.vertices_end(); ++v_it)
Jan Möbius's avatar
Jan Möbius committed
86
  {
Jan Möbius's avatar
Jan Möbius committed
87
88
89
    mesh_.data(*v_it).set_state(0);
    mesh_.data(*v_it).set_final();
    mesh_.data(*v_it).set_position(0, mesh_.point(*v_it));
Jan Möbius's avatar
Jan Möbius committed
90
  }
91

Jan Möbius's avatar
Jan Möbius committed
92
  // ---------------------------------------- Init Faces
93
  for (f_it = mesh_.faces_begin(); f_it != mesh_.faces_end(); ++f_it)
Jan Möbius's avatar
Jan Möbius committed
94
  {
Jan Möbius's avatar
Jan Möbius committed
95
96
97
    mesh_.data(*f_it).set_state(0);
    mesh_.data(*f_it).set_final();
    mesh_.data(*f_it).set_position(0, zero_point);
Jan Möbius's avatar
Jan Möbius committed
98
  }
99

Jan Möbius's avatar
Jan Möbius committed
100
  // ---------------------------------------- Init Edges
101
  for (e_it = mesh_.edges_begin(); e_it != mesh_.edges_end(); ++e_it)
Jan Möbius's avatar
Jan Möbius committed
102
  {
Jan Möbius's avatar
Jan Möbius committed
103
104
105
    mesh_.data(*e_it).set_state(0);
    mesh_.data(*e_it).set_final();
    mesh_.data(*e_it).set_position(0, zero_point);
Jan Möbius's avatar
Jan Möbius committed
106
  }
107
108


Jan Möbius's avatar
Jan Möbius committed
109
110
111
112
113
114
115
116
  // ---------------------------------------- Init Rules

  int n_subdiv_rules_ = 0;


  // look for subdivision rule(s)
  for (size_t i=0; i < n_rules(); ++i) {

117
118
119
    if (rule_sequence_[i]->type()[0] == 'T' ||
        rule_sequence_[i]->type()[0] == 't')
    {
Jan Möbius's avatar
Jan Möbius committed
120
121
122
123
124
125
126
127
128
129
130
      ++n_subdiv_rules_;
      subdiv_rule_ = rule_sequence_[i];
      subdiv_type_ = rule_sequence_[i]->subdiv_type();
    }
  }


  // check for correct number of subdivision rules
  assert(n_subdiv_rules_ == 1);

  if (n_subdiv_rules_ != 1)
131
  {
132
    ::omerr() << "Error! More than one subdivision rules not allowed!\n";
Jan Möbius's avatar
Jan Möbius committed
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
    return false;
  }

  // check for subdivision type
  assert(subdiv_type_ == 3 || subdiv_type_ == 4);

  if (subdiv_type_ != 3 && subdiv_type_ != 4)
  {
    ::omerr() << "Error! Unknown subdivision type in sequence!" << std::endl;
    return false;
  }

  // set pointer to last rule
//   first_rule_ = rule_sequence_.front();
//   last_rule_  = rule_sequence_.back(); //[n_rules() - 1];

  // set numbers and previous rule
150
  for (size_t i = 0; i < n_rules(); ++i)
Jan Möbius's avatar
Jan Möbius committed
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
  {
    rule_sequence_[i]->set_subdiv_type(subdiv_type_);
    rule_sequence_[i]->set_n_rules(n_rules());
    rule_sequence_[i]->set_number(i);
    rule_sequence_[i]->set_prev_rule(rule_sequence_[(i+n_rules()-1)%n_rules()]);
    rule_sequence_[i]->set_subdiv_rule(subdiv_rule_);
  }

  return true;
}


// ----------------------------------------------------------------------------
#define MOBJ mesh_.deref
#define TVH  to_vertex_handle
#define HEH  halfedge_handle
#define NHEH next_halfedge_handle
#define PHEH prev_halfedge_handle
#define OHEH opposite_halfedge_handle
// ----------------------------------------------------------------------------


template<class M>
Isaak Lim's avatar
Isaak Lim committed
174
void CompositeT<M>::refine(typename M::FaceHandle& _fh)
Jan Möbius's avatar
Jan Möbius committed
175
176
177
178
{
  std::vector<typename Mesh::HalfedgeHandle> hh_vector;

  // -------------------- calculate new level for faces and vertices
179
180
  int new_face_level =
    t_rule()->number() + 1 +
Jan Möbius's avatar
Jan Möbius committed
181
182
    ((int)floor((float)(mesh_.data(_fh).state() - t_rule()->number() - 1)/n_rules()) + 1) * n_rules();

183
  int new_vertex_level =
Jan Möbius's avatar
Jan Möbius committed
184
185
186
187
188
189
190
191
192
193
    new_face_level + l_rule()->number() - t_rule()->number();

  // -------------------- store old vertices
  // !!! only triangle meshes supported!
  typename Mesh::VertexHandle vh[3];

  vh[0] = mesh_.TVH(mesh_.HEH(_fh));
  vh[1] = mesh_.TVH(mesh_.NHEH(mesh_.HEH(_fh)));
  vh[2] = mesh_.TVH(mesh_.PHEH(mesh_.HEH(_fh)));

194
  // save handles to incoming halfedges for getting the new vertices
Jan Möbius's avatar
Jan Möbius committed
195
  // after subdivision (1-4 split)
196
  if (subdiv_type_ == 4)
Jan Möbius's avatar
Jan Möbius committed
197
198
199
200
201
202
203
204
  {
    hh_vector.clear();

    // green face
    if (mesh_.data(_fh).final())
    {
      typename Mesh::FaceHalfedgeIter fh_it(mesh_.fh_iter(_fh));

Jan Möbius's avatar
Jan Möbius committed
205
      for (; fh_it.is_valid(); ++fh_it)
Jan Möbius's avatar
Jan Möbius committed
206
      {
Jan Möbius's avatar
Jan Möbius committed
207
        hh_vector.push_back(mesh_.PHEH(mesh_.OHEH(*fh_it)));
Jan Möbius's avatar
Jan Möbius committed
208
209
210
211
      }
    }

    // red face
212
    else
Jan Möbius's avatar
Jan Möbius committed
213
    {
214

Jan Möbius's avatar
Jan Möbius committed
215
216
217
218
219
220
221
      typename Mesh::HalfedgeHandle red_hh(mesh_.data(_fh).red_halfedge());

      hh_vector.push_back(mesh_.PHEH(mesh_.OHEH(mesh_.NHEH(red_hh))));
      hh_vector.push_back(mesh_.PHEH(mesh_.OHEH(mesh_.PHEH(mesh_.OHEH(red_hh)))));
    }
  }

222

Jan Möbius's avatar
Jan Möbius committed
223
224
225
226
227
228
229
230
  // -------------------- Average rule before topo rule?
  if (t_rule()->number() > 0)
    t_rule()->prev_rule()->raise(_fh, new_face_level-1);

  // -------------------- Apply topological operator first
  t_rule()->raise(_fh, new_face_level);

#if 0 // original code
231
  assert(MOBJ(_fh).state() >=
Jan Möbius's avatar
Jan Möbius committed
232
233
234
235
236
237
         subdiv_rule_->number()+1+(int) (MOBJ(_fh).state()/n_rules())*n_rules());
#else // improved code (use % operation and avoid floating point division)
  assert( mesh_.data(_fh).state() >= ( t_rule()->number()+1+generation(_fh) ) );
#endif

  // raise new vertices to final levels
238
  if (subdiv_type_ == 3)
Jan Möbius's avatar
Jan Möbius committed
239
240
241
242
243
244
245
  {
    typename Mesh::VertexHandle new_vh(mesh_.TVH(mesh_.NHEH(mesh_.HEH(_fh))));

    // raise new vertex to final level
    l_rule()->raise(new_vh, new_vertex_level);
  }

246
  if (subdiv_type_ == 4)
Jan Möbius's avatar
Jan Möbius committed
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
  {
    typename Mesh::HalfedgeHandle hh;
    typename Mesh::VertexHandle   new_vh;

    while (!hh_vector.empty()) {

      hh = hh_vector.back();
      hh_vector.pop_back();

      // get new vertex
      new_vh = mesh_.TVH(mesh_.NHEH(hh));

      // raise new vertex to final level
      l_rule()->raise(new_vh, new_vertex_level);
    }
  }

264
  // raise old vertices to final position
Jan Möbius's avatar
Jan Möbius committed
265
266
267
268
269
270
271
272
273
274
  l_rule()->raise(vh[0], new_vertex_level);
  l_rule()->raise(vh[1], new_vertex_level);
  l_rule()->raise(vh[2], new_vertex_level);
}


// ----------------------------------------------------------------------------


template<class M>
Isaak Lim's avatar
Isaak Lim committed
275
void CompositeT<M>::refine(typename M::VertexHandle& _vh)
Jan Möbius's avatar
Jan Möbius committed
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
{
  // calculate next final level for vertex
  int new_vertex_state = generation(_vh) + l_rule()->number() + 1;

  // raise vertex to final position
  l_rule()->raise(_vh, new_vertex_state);
}


// ----------------------------------------------------------------------------


template <class M>
std::string CompositeT<M>::rules_as_string(const std::string& _sep) const
{
  std::string seq;
  typename RuleSequence::const_iterator it = rule_sequence_.begin();

  if ( it != rule_sequence_.end() )
  {
    seq = (*it)->type();
    for (++it; it != rule_sequence_.end(); ++it )
    {
      seq += _sep;
300
      seq += (*it)->type();
Jan Möbius's avatar
Jan Möbius committed
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
    }
  }
  return seq;
}

// ----------------------------------------------------------------------------
#undef MOBJ
#undef TVH
#undef HEH
#undef NHEH
#undef PHEH
#undef OHEH
//=============================================================================
} // END_NS_ADAPTIVE
} // END_NS_SUBDIVIDER
} // END_NS_OPENMESH
//=============================================================================