public static extern UserTopoUnstrctGeomStruct *UserTopoAddPoints( UserTopoUnstrctGeomStruct *Ud, UserTopoUnstrctGeomPtStruct *Pts, int NumPt, int MergePts, int **CloneMap, int **RealIDMap);
public static extern int UserTopoModifyPoint(UserTopoUnstrctGeomStruct *Ud, int PtId, UserTopoUnstrctGeomPtStruct *Pt);
public static extern void UserTopoSetPoints(UserTopoUnstrctGeomStruct *Ud, UserTopoUnstrctGeomPtStruct *Pts, int NumPt, int MergePts, int **IndxMap, int **RealIDMap);
public static extern void UserTopoUnstrctGeomPtCopyData(UserTopoUnstrctGeomPtStruct *Dest, UserTopoUnstrctGeomPtStruct *Src);