Exemple #1
0
static void loopTheLoop(std::list<GEdge*> &wire,
			std::list<GEdgeSigned> &loop,  
			GEdge **degeneratedToInsert)
{
  GEdgeSigned *prevOne = 0;
  GEdgeSigned ges(0,0);

  while(wire.size()){
    if (prevOne && (*degeneratedToInsert) && 
	(*degeneratedToInsert)->getBeginVertex () == prevOne->getEndVertex()){
      ges = GEdgeSigned(1,*degeneratedToInsert);
      *degeneratedToInsert = 0;
      // printf("second degenerated edge inserted\n");
    }
    else ges = nextOne(prevOne, wire);
    if(ges.getSign() == 0){ // oops
      if (0){
	Msg::Error("Something wrong in edge loop of size=%d, no sign !", wire.size());
	for (std::list<GEdge* >::iterator it = wire.begin(); it != wire.end(); it++){
	  Msg::Error("GEdge=%d begin=%d end =%d", (*it)->tag(), 
		     (*it)->getBeginVertex()->tag(), (*it)->getEndVertex()->tag());
	}
      }
      break;
    }
    prevOne = &ges;
    // ges.print();
    loop.push_back(ges);
  }  
}
Exemple #2
0
static void loopTheLoop(std::list<GEdge *> &wire, std::list<GEdgeSigned> &loop,
                        GEdge **degeneratedToInsert)
{
  GEdgeSigned *prevOne = 0;
  GEdgeSigned ges(0, 0);

  while(wire.size()) {
    if(prevOne && (*degeneratedToInsert) &&
       (*degeneratedToInsert)->getBeginVertex() == prevOne->getEndVertex()) {
      ges = GEdgeSigned(1, *degeneratedToInsert);
      *degeneratedToInsert = 0;
      // printf("second degenerated edge inserted\n");
    }
    else
      ges = nextOne(prevOne, wire);
    if(ges.getSign() == 0) { // oops
      Msg::Warning("Something wrong in curve loop of size=%d, no sign!",
                   wire.size());
      break;
    }
    prevOne = &ges;
    // ges.print();
    loop.push_back(ges);
  }
}
Exemple #3
0
GEdgeSigned nextOne(GEdgeSigned *thisOne, std::list<GEdge*> &wire)
{
  if(!thisOne){
    GEdge *ge = *(wire.begin());
    wire.erase(wire.begin());
    return GEdgeSigned(1, ge);   
  }

  GVertex *gv = thisOne->getEndVertex();

  std::list<GEdge*> possibleChoices;

  std::list<GEdge*>::iterator it = wire.begin();
  std::list<GEdge*>::iterator ite = wire.end();
  while(it != ite){
    GEdge *ge = *it;
    GVertex *v1 = ge->getBeginVertex();
    GVertex *v2 = ge->getEndVertex();
    if(v1 == gv || v2 == gv) possibleChoices.push_back(ge);
    ++it;
  }
  it = possibleChoices.begin();
  ite = possibleChoices.end();
  while(it != ite){
    GEdge *ge = *it;
    if(countInList(possibleChoices, ge) == 2){
      wire.erase(std::remove_if(wire.begin(), wire.end(), 
                                std::bind2nd(std::equal_to<GEdge*>(), ge)), 
                 wire.end());
      wire.push_back(ge);
      GVertex *v1 = ge->getBeginVertex();
      GVertex *v2 = ge->getEndVertex();
      if(v1 == gv) return GEdgeSigned(1, ge);   
      if(v2 == gv) return GEdgeSigned(-1, ge);   
      Msg::Error("Something wrong in edge loop 1");
      thisOne->print();
    }
    ++it;
  }
  it = possibleChoices.begin();
  ite = possibleChoices.end();
  while(it != ite){
    GEdge *ge = *it;
    if(ge != thisOne->ge){
      wire.erase(std::remove_if(wire.begin(),wire.end(), 
                                std::bind2nd(std::equal_to<GEdge*>(), ge)), 
                 wire.end());
      GVertex *v1 = ge->getBeginVertex();
      GVertex *v2 = ge->getEndVertex();
      if(v1 == gv) return GEdgeSigned(1, ge);   
      if(v2 == gv) return GEdgeSigned(-1, ge);
      Msg::Error("Something wrong in edge loop 2");
      thisOne->print();
    }   
    ++it;
  }
  
  // should never end up here
  return GEdgeSigned(0, 0);
}