Method IsNode

Common/DataModel/vtkCellTreeLocator.cxx:143–146

    this->Index = this->GetDimension() | (left << 2);
  }
  bool IsNode() const
  {
    return (this->Index & 3) != 3; // For a leaf 2 LSBs in index is 3
  }
  T GetLeftChildIndex() const { return (this->Index >> 2); }
  T GetRightChildIndex() const
  {