18.32  TDTSET 

This controls the format of titles.  This  modifies  only  the  next  CALL
TITLE or CALL CASE.
This  routine  is  not recommended.  It is provided for compatability with
older versions of TOPDRAWER.  Use TDTEXT instead. 
     CALL TDTSET(SIZE,[ANGLE,[SPACES,[IDATA]]])
     1.  SIZE - The character size in tenths of inches.
     2.  ANGLE - The Angle to draw the title at.
     3.  SPACES - The number of spaces the title occupies.
     4.  IDATA - Non zero if title is specified in DATA coordinates.