Logo Arts

To New
  # set default screen, pen and turtle values
  ResetAll SetScreenSize [400 400] HideTurtle
  SetSC Black SetPC Green SetPS 1 PenUp
End

To Init :Order
  Make "Size 96  # make Size and RootHalf global values
  Make "RootHalf 1/Sqrt 2
End

To Display :Order
  # write header title and curve level
  SetPC White SetPos [-190 184]
  Label Sentence [Antenna Tree Level] :Order
End

To Tree :Order :Size
  If :Order < 1 [Stop]  # ie if = 0
  SetPW :Order Forward :Size Left 90
 Tree :Order-1 :RootHalf*:Size
  SetPW :Order Left 90 Forward 2*:Size Left 90
 Tree :Order-1 :RootHalf*:Size
  SetPW :Order Left 90 Forward :Size
End

To Go :Order
  New Init :Order Display :Order
  Home Right 90 SetPC Green PenDown
  Tree :Order :Size
End