map< double, const SMDS_MeshNode* >::iterator u_oldNode, u_newNode, u_newOnSeam, newEnd;
set< const SMDS_MeshNode* > seamNodes;
map< double, const SMDS_MeshNode* >::iterator u_oldNode, u_newNode, u_newOnSeam, newEnd;
set< const SMDS_MeshNode* > seamNodes;