WIN_SIZE_SHAPE Name
             WIN_SIZE_SHAPE
Purpose
      
       Find window size & shape needed to display a specified image.
Category
Calling Sequence
      
       win_size_shape, nx, ny Inputs
             nx, ny = Image size in x and y (pixels).  in
Keyword Parameters
Keywords
        
         MAXIMG=mx Longest side of displayed image (pixels),
          
           default is longest image side. 
        
         XWIN=xsz,YWIN=ysz Returned needed window size in
                     x and y (pixels).
        
         POSITION=pos  Returned plot area position.
                      Use for izoom.
        
         /DEVICE Return pos in device coordinates, else normalized.
        
         XMAR1=xm1, XMAR2=xm2 Left and right margins (def=70,30).
        
         YMAR1=ym1, YMAR2=ym2 Bottom and top margins (def=60,30).
Outputs
Common Blocks
Notes
      
       Notes: Intended to find the size and shape of a window
        
         used to display an array using izoom.  Can also use for
                  the plot command.
Modification History
      
       R. Sterner, 2004 Apr 22 
      
       R. Sterner, 2007 Jan 16 --- Made default MAXIMG = longest image side.
  
 Copyright (C) 2004, Johns Hopkins University/Applied Physics Laboratory
  
 This software may be used, copied, or redistributed as long as it is not
  
 sold and this copyright notice is reproduced on each copy made.  This
  
 routine is provided as is without any express or implied warranties
  
 whatsoever.  Other limitations apply as described in the file disclaimer.txt.