anchor.diff:  L, 11, 12          !21
   L, 16, 15          !22
   L, 15, 17          !23
  -L, 16, 6           !24
  -L, 17, 7           !25
  +L, 17, 6           !24
  +L, 18, 7           !25
   
   ! Areas
   
  
positive.code: L, 13, 5           !9
  L, 5, 1            !10
  L, 5, 9            !11
  L, 9, 16           !12
  L, 8, 12           !13
  L, 12, 17          !14
  L, 10, 15          !15
  L, 11, 15          !16
  L, 15, 16          !17
  
negative.code: K,13, 0.0, t
  K,14, 0.0, t
  K,15, vcctRegion,t
  
  K,16, L, t
  
  K,17, vcctRegion,refHlow
  K,18, vcctRegion,refHup
  
  ! Lines
  
  