SMESH_TNodeXYZ( const SMDS_MeshElement* e):gp_XYZ(0,0,0),_node(0) {
if (e) {
assert( e->GetType() == SMDSAbs_Node );
_node = static_cast<const SMDS_MeshNode*>(e);
SMESH_TNodeXYZ( const SMDS_MeshElement* e):gp_XYZ(0,0,0),_node(0) {
if (e) {
assert( e->GetType() == SMDSAbs_Node );
_node = static_cast<const SMDS_MeshNode*>(e);