
 DRAW, Introduction
 
 The DRAW  commands allow  the user  to redraw  all or  part of a
 part. It  is useful  if a part is very complicated, to draw only
 certain entities at any one time.
 
 
 16.2 "DRAW PAGE"
 
 This command allows the user to clear the current screen without
 losing any  of  the  current  graphics  information.  Once  this
 command  has   been  selected,  the  screen  appears  blank  and
 particular  entities  can  be  redrawn  and  others  omitted  if
 desired. It exactly analogous to SET PAGE in QD2D.
 
 
 16.3 THE "DRAW" OPTIONS
 
 To draw  any particualr  element to the screen, just select DRAW
 and then the type of element desired.
 
      Option         Nature of Option
 
      ALL            Redraws the whole drawing except points.
      POINT          Redraws all the points.
      LINE           Redraws all lines.
      CURVE          Redraws all curves.
      CIRCLE         Redraws all circles.
      PLANE          Redraws all  planes (including  the centriod
                     diamond).
      SUB            Redraws all sub-parts.
      CYLIN          Redraws all cylinders.
      GRID           Redraws the reference grid.
      RV ARC         Redraws all revolved arcs.
      PATH           Redraws  all  paths  with  points  drawn  as
                     squares.
 
 The element selected is drawn if hidden, and redrawn if not.


