anchor.diff:  LESIZE, 4, elSize
   LESIZE, 8, elSize
   LESIZE, 9, elSize
  -LESIZE, 20, elSize
  -LESIZE, 21, elSize
  +LESIZE, 18, elSize
  +LESIZE, 19, elSize
   LESIZE, 15, elSize
   LESIZE, 16, elSize
  -LESIZE, 18, elSize
  -LESIZE, 19, elSize
  +LESIZE, 17, elSize
   
   ! Define Element Type
   
  
positive.code: DL, 3, ,UX,appliedDisp
  DL, 4, ,UX,appliedDisp
  DL, 5, ,UX,appliedDisp
  
  ALLSEL
  
  ! Coincident constraints
  LSEL,S,LINE,,15,16,1
  NSLL,S,1
  CPINTF,ALL
  
  ALLSEL
  
  
negative.code: 
  ALLSEL
  
  LSEL,S,LINE,,16
  NSLL,S,1
  TYPE,3
  MAT,3
  ESURF
  
  LSEL,S,LINE,,17
  NSLL,S,1
  TYPE,3
  MAT,3
  