VCG Library
trimesh_hole.cpp
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23 
24 #include<vcg/space/triangle3.h>
25 #include<vcg/complex/complex.h>
26 #include<vcg/complex/algorithms/hole.h>
27 #include<vcg/complex/algorithms/local_optimization.h>
28 #include<vcg/complex/algorithms/local_optimization/tri_edge_flip.h>
29 #include<vcg/complex/algorithms/smooth.h>
30 #include<vcg/complex/algorithms/refine.h>
31 
32 // input output
33 #include <wrap/io_trimesh/import_ply.h>
34 #include <wrap/io_trimesh/export_ply.h>
35 
36 using namespace vcg;
37 using namespace std;
38 
39 class MyFace;
40 class MyVertex;
41 struct MyUsedTypes : public UsedTypes< Use<MyVertex> ::AsVertexType,
42  Use<MyFace> ::AsFaceType>{};
43 
44 class MyVertex : public Vertex< MyUsedTypes, vertex::Coord3f, vertex::BitFlags, vertex::Normal3f, vertex::Mark, vertex::Color4b >{};
45 class MyFace : public Face < MyUsedTypes, face::VertexRef,face::FFAdj, face::Mark, face::BitFlags, face::Normal3f> {};
46 
47 class MyMesh : public tri::TriMesh< vector<MyVertex>, vector<MyFace > >{};
48 
49 //Delaunay
50 class MyDelaunayFlip: public vcg::tri::TriEdgeFlip< MyMesh, MyDelaunayFlip > {
51 public:
52  typedef vcg::tri::TriEdgeFlip< MyMesh, MyDelaunayFlip > TEF;
53  inline MyDelaunayFlip( const TEF::PosType &p, int i,BaseParameterClass *pp) :TEF(p,i,pp){}
54 };
55 
56 bool callback(int percent, const char *str) {
57  cout << "str: " << str << " " << percent << "%\r";
58  return true;
59 }
60 
61 template <class MESH>
62 bool NormalTest(typename face::Pos<typename MESH::FaceType> pos)
63 {
64  //giro intorno al vertice e controllo le normali
65  typename MESH::ScalarType thr = 0.0f;
66  typename MESH::CoordType NdP = vcg::TriangleNormal<typename MESH::FaceType>(*pos.f);
67  typename MESH::CoordType tmp, oop, soglia = typename MESH::CoordType(thr,thr,thr);
68  face::Pos<typename MESH::FaceType> aux=pos;
69  do{
70  aux.FlipF();
71  aux.FlipE();
72  oop = Abs(tmp - ::vcg::TriangleNormal<typename MESH::FaceType>(*pos.f));
73  if(oop < soglia )return false;
74  }while(aux != pos && !aux.IsBorder());
75 
76  return true;
77 }
78 
79 int main(int argc,char ** argv){
80 
81  if(argc<5)
82  {
83  printf(
84  "\n HoleFilling (" __DATE__ ")\n"
85  "Visual Computing Group I.S.T.I. C.N.R.\n"
86  "Usage: trimesh_hole #algorithm #size filein.ply fileout.ply \n"
87  "#algorithm: \n"
88  " 1) Trivial Ear \n"
89  " 2) Minimum weight Ear \n"
90  " 3) Selfintersection Ear \n"
91  " 4) Minimum weight \n"
92  );
93  exit(0);
94  }
95 
96  int algorithm = atoi(argv[1]);
97  int holeSize = atoi(argv[2]);
98  if(algorithm < 0 && algorithm > 4)
99  {
100  printf("Error in algorithm's selection %i\n",algorithm);
101  exit(0);
102  }
103 
104  MyMesh m;
105 
106  if(tri::io::ImporterPLY<MyMesh>::Open(m,argv[3])!=0)
107  {
108  printf("Error reading file %s\n",argv[2]);
109  exit(0);
110  }
111 
112  //update the face-face topology
113  tri::UpdateTopology<MyMesh>::FaceFace(m);
114  tri::UpdateNormal<MyMesh>::PerVertexPerFace(m);
115  tri::UpdateFlags<MyMesh>::FaceBorderFromFF(m);
116  assert(tri::Clean<MyMesh>::IsFFAdjacencyConsistent(m));
117 
118  //compute the average of face area
119  float AVG,sumA=0.0f;
120  int numA=0,indice;
121  indice = m.face.size();
122  MyMesh::FaceIterator fi;
123  for(fi=m.face.begin();fi!=m.face.end();++fi)
124  {
125  sumA += DoubleArea(*fi)/2;
126  numA++;
127  for(int ind =0;ind<3;++ind)
128  fi->V(ind)->InitIMark();
129  }
130  AVG=sumA/numA;
131 
132  //tri::Hole<MyMesh> holeFiller;
133  switch(algorithm)
134  {
135  case 1: tri::Hole<MyMesh>::EarCuttingFill<tri::TrivialEar<MyMesh> >(m,holeSize,false); break;
136  case 2: tri::Hole<MyMesh>::EarCuttingFill<tri::MinimumWeightEar< MyMesh> >(m,holeSize,false,callback); break;
137  case 3: tri::Hole<MyMesh>::EarCuttingIntersectionFill<tri::SelfIntersectionEar< MyMesh> >(m,holeSize,false); break;
138  case 4: tri::Hole<MyMesh>::MinimumWeightFill(m,holeSize, false); tri::UpdateTopology<MyMesh>::FaceFace(m); break;
139  }
140 
141  tri::UpdateFlags<MyMesh>::FaceBorderFromFF(m);
142 
143  assert(tri::Clean<MyMesh>::IsFFAdjacencyConsistent(m));
144 
145  printf("\nStart refinig...\n");
146 
147 /*start refining */
148  MyMesh::VertexIterator vi;
149  MyMesh::FaceIterator f;
150  std::vector<MyMesh::FacePointer> vf;
151  f = m.face.begin();
152  f += indice;
153  for(; f != m.face.end();++f)
154  {
155  if(!f->IsD())
156  {
157  f->SetS();
158  }
159  }
160 
161  std::vector<MyMesh::FacePointer *> FPP;
162  std::vector<MyMesh::FacePointer> added;
163  std::vector<MyMesh::FacePointer>::iterator vfit;
164  int i=1;
165  printf("\n");
166 
167  for(f = m.face.begin();f!=m.face.end();++f) if(!(*f).IsD())
168  {
169  if( f->IsS() )
170  {
171  f->V(0)->IsW();
172  f->V(1)->IsW();
173  f->V(2)->IsW();
174  }
175  else
176  {
177  f->V(0)->ClearW();
178  f->V(1)->ClearW();
179  f->V(2)->ClearW();
180  }
181  }
182  BaseParameterClass pp;
183  vcg::LocalOptimization<MyMesh> Fs(m,&pp);
184  Fs.SetTargetMetric(0.0f);
185  Fs.Init<MyDelaunayFlip >();
186  Fs.DoOptimization();
187 
188 
189  do
190  {
191  vf.clear();
192  f = m.face.begin();
193  f += indice;
194  for(; f != m.face.end();++f)
195  {
196  if(f->IsS())
197  {
198  bool test= true;
199  for(int ind =0;ind<3;++ind)
200  f->V(ind)->InitIMark();
201  test = (DoubleArea<MyMesh::FaceType>(*f)/2) > AVG;
202  if(test)
203  {
204  vf.push_back(&(*f));
205  }
206  }
207  }
208 
209  //info print
210  printf("\r Refining [%d] - > %d",i,int(vf.size()));
211  i++;
212 
213  FPP.clear();
214  added.clear();
215 
216  for(vfit = vf.begin(); vfit!=vf.end();++vfit)
217  {
218  FPP.push_back(&(*vfit));
219  }
220  int toadd= vf.size();
221  MyMesh::FaceIterator f1,f2;
222  f2 = tri::Allocator<MyMesh>::AddFaces(m,(toadd*2),FPP);
223  MyMesh::VertexIterator vertp = tri::Allocator<MyMesh>::AddVertices(m,toadd);
224  std::vector<MyMesh::FacePointer> added;
225  added.reserve(toadd);
226  vfit=vf.begin();
227 
228  for(int i = 0; i<toadd;++i,f2++,vertp++)
229  {
230  f1=f2;
231  f2++;
232  TriSplit<MyMesh,CenterPointBarycenter<MyMesh> >::Apply(vf[i],&(*f1),&(*f2),&(*vertp),CenterPointBarycenter<MyMesh>() );
233  f1->SetS();
234  f2->SetS();
235  for(int itr=0;itr<3;itr++)
236  {
237  f1->V(itr)->SetW();
238  f2->V(itr)->SetW();
239  }
240  added.push_back( &(*f1) );
241  added.push_back( &(*f2) );
242  }
243 
244  BaseParameterClass pp;
245  vcg::LocalOptimization<MyMesh> FlippingSession(m,&pp);
246  FlippingSession.SetTargetMetric(0.0f);
247  FlippingSession.Init<MyDelaunayFlip >();
248  FlippingSession.DoOptimization();
249 
250  }while(!vf.empty());
251 
252  vcg::LocalOptimization<MyMesh> Fiss(m,&pp);
253  Fiss.SetTargetMetric(0.0f);
254  Fiss.Init<MyDelaunayFlip >();
255  Fiss.DoOptimization();
256 
257 /*end refining */
258 
259  tri::io::ExporterPLY<MyMesh>::Save(m,"PreSmooth.ply",false);
260 
261  int UBIT = MyMesh::VertexType::NewBitFlag();
262  f = m.face.begin();
263  f += indice;
264  for(; f != m.face.end();++f)
265  {
266  if(f->IsS())
267  {
268  for(int ind =0;ind<3;++ind){
269  if(NormalTest<MyMesh>(face::Pos<MyMesh::FaceType>(&(*f),ind )))
270  {
271  f->V(ind)->SetUserBit(UBIT);
272  }
273  }
274  f->ClearS();
275  }
276  }
277 
278  for(vi=m.vert.begin();vi!=m.vert.end();++vi) if(!(*vi).IsD())
279  {
280  if( vi->IsUserBit(UBIT) )
281  {
282  (*vi).SetS();
283  vi->ClearUserBit(UBIT);
284  }
285  }
286 
287  tri::Smooth<MyMesh>::VertexCoordLaplacian(m,1,true);
288 
289  printf("\nCompleted. Saving....\n");
290 
291  tri::io::ExporterPLY<MyMesh>::Save(m,argv[4],false);
292  return 0;
293 }
294 
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