~F8CRE TELETYPE COMMANDS

NODE FOLLOWING COMMANDS______________________________________________

 +       Fetch film node.
 !       Flush node display.

 , .     CW,,CCW         ...fetch Ring links.
 < >     DAD,,SON        ...fetch Tree links.
         TYPE,,RELLOC
 ∪ ∩     ENDO,,EXO       ...fetch nested polygon tree links.
 ≤ ≥     ALT,,NCNT       ...fetch alternate shape or arc link.
 ⊂ ⊃     NGON,,PGON      ...fetch nested polygon tree links.
 ∨ ∧     NTIME,,PTIME    ...fetch time line links.

	These 14 commands  allow detailed inspection of the  CRE data
structure  by showing the  contents of a  node.  Data  halfwords of a
node are displayed  in octal; link  halfwords are displayed  prefixed
with a  letter indicating the type  of node being pointed  at; a zero
link is displayed as "NIL".

	The  FILM  node,    which  is  the  root  of  the whole  data
structure is  fetched and  displayed by the  "+" command.   From  the
Film, the  ">" command can be  used to get SON(FILM)  which is always
the first image, and  ">" command of  an image will  get a level  and
">"  of  a  level  will get  a  polygon.  Vectors  and  polygons  are
intensified  when  their  contents are  being  displayed.   The  exit
command is "!", which leaves the screen less cluttered.

WINDOW SCROLLING COMMANDS_____________________________________________

  ;      Move camera left.
  :      Move camera right.
  (      Move camera down.
  )      Move camera up.

  -      Zoom out, shrink displayed image.
  *      Zoom in,  expand displayed image.
 αZ      Reset scrolling window to it initial position and size.
  /      Halve strength of scrolling delta.
  \      Double strength of scrolling delta.

  ↔	 Single step displayed image forwards.
 α↔	 Single step displayed image backwards.
 β↔	 Run film display forwards.
 ε↔	 Run film display backwards.

	The first  several commands allow  minute examination  of the
image by  magnification and window positioning. The command character
"↔" allows  single stepping  thru  the film  of images  or  continous
display of the film forwards or backwards.
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~I1973,800;F8- 37 -