
   load (overlay) (filename)

  "load" reads a file with objects in SAOimage style into the
  specified overlay.  If the specified overlay is already used, the
  new objects are added to the old.  If you do not want this, use
  "erase" to erase all objects in the overlay first.  Valid overlays
  may be: 0, red, 1, green, 2, blue, 3, yellow.

Examples of SAOimage style objects:
BOX   300  200  100 50  : draws a box centered at pixel 300,200 that
			  is 100 pixels wide, and 50 pixels high

CIRCLE 500 400 200 : draws a circle centered at pixel 500,400 with a
                     radius of 200 pixels

LINE 100 100 200 200 : draws a line from (100,100) with length (200,200)

  See also: save, erase, contour

