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
//=============================================================================