Method Initialize

Common/DataModel/vtkTreeDFSIterator.cxx:64–95

}

void vtkTreeDFSIterator::Initialize()
{
  if (this->Tree == nullptr)
  {
    return;
  }
  // Set all colors to white
  this->Color->SetNumberOfValues(this->Tree->GetNumberOfVertices());
  for (vtkIdType i = 0; i < this->Tree->GetNumberOfVertices(); i++)
  {
    this->Color->SetValue(i, this->WHITE);
  }
  if (this->StartVertex < 0)
  {
    this->StartVertex = this->Tree->GetRoot();
  }
  this->CurRoot = this->StartVertex;
  while (!this->Internals->Stack.empty())
  {
    this->Internals->Stack.pop();
  }

  // Find the first item
  if (this->Tree->GetNumberOfVertices() > 0)
  {
    this->NextId = this->NextInternal();
  }
  else
  {
    this->NextId = -1;
  }
}

void vtkTreeDFSIterator::SetMode(int mode)
{