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 PSIMAGE - PostScript IMAGE plot of a uniformly-sampled function f(x1,x2)
            with the option to display a second attribute		

 psimage n1= [optional parameters] <binaryfile >postscriptfile	

 Required Parameters:							
 n1			 number of samples in 1st (fast) dimension	

 Optional Parameters:							
 d1=1.0		 sampling interval in 1st dimension		
 f1=0.0		 first sample in 1st dimension			
 n2=all		 number of samples in 2nd (slow) dimension	
 d2=1.0		 sampling interval in 2nd dimension		
 f2=0.0		 first sample in 2nd dimension			
 perc=100.0		 percentile used to determine clip		
 clip=(perc percentile) clip used to determine bclip and wclip		
 bperc=perc		 percentile for determining black clip value	
 wperc=100.0-perc	 percentile for determining white clip value	
 bclip=clip		 data values outside of [bclip,wclip] are clipped
 wclip=-clip		 data values outside of [bclip,wclip] are clipped
                        bclip and wclip will be set to be inside       
                        [lbeg,lend] if lbeg and/or lend are supplied   
 threecolor=1		 supply 3 color values instead of only two,	
                        using not only black and white, but f.e. red,	
                        green and blue					
 brgb=0.0,0.0,0.0	 red, green, blue values corresponding to black	
 grgb=1.0,1.0,1.0	 red, green, blue values corresponding to grey	
 wrgb=1.0,1.0,1.0	 red, green, blue values corresponding to white	
 bhls=0.0,0.0,0.0	 hue, lightness, saturation corresponding to black
 ghls=0.0,1.0,0.0	 hue, lightness, saturation corresponding to grey
 whls=0.0,1.0,0.0	 hue, lightness, saturation corresponding to white
 bps=12		 bits per sample for color plots, either 12 or 24
 d1s=1.0		 factor by which to scale d1 before imaging	
 d2s=1.0		 factor by which to scale d2 before imaging	
 verbose=1		 =1 for info printed on stderr (0 for no info)	
 xbox=1.5		 offset in inches of left side of axes box	
 ybox=1.5		 offset in inches of bottom side of axes box	
 width=6.0		 width in inches of axes box			
 height=8.0		 height in inches of axes box			
 x1beg=x1min		 value at which axis 1 begins			
 x1end=x1max		 value at which axis 1 ends			
 d1num=0.0		 numbered tic interval on axis 1 (0.0 for automatic)
 f1num=x1min		 first numbered tic on axis 1 (used if d1num not 0.0)
 n1tic=1		 number of tics per numbered tic on axis 1	
 grid1=none		 grid lines on axis 1 - none, dot, dash, or solid
 label1=		 label on axis 1				
 x2beg=x2min		 value at which axis 2 begins			
 x2end=x2max		 value at which axis 2 ends			
 d2num=0.0		 numbered tic interval on axis 2 (0.0 for automatic)
 f2num=x2min		 first numbered tic on axis 2 (used if d2num not 0.0)
 n2tic=1		 number of tics per numbered tic on axis 2	
 grid2=none		 grid lines on axis 2 - none, dot, dash, or solid
 label2=		 label on axis 2				
 labelfont=Helvetica	 font name for axes labels			
 labelsize=18		 font size for axes labels			
 title=		 title of plot					
 titlefont=Helvetica-Bold font name for title				
 titlesize=24		  font size for title				
 titlecolor=black	 color of title					
 axescolor=black	 color of axes					
 gridcolor=black	 color of grid					
 axeswidth=1            width (in points) of axes                      
 ticwidth=axeswidth     width (in points) of tic marks			
 gridwidth=axeswidth    width (in points) of grid lines		
 style=seismic		 normal (axis 1 horizontal, axis 2 vertical) or	
			 seismic (axis 1 vertical, axis 2 horizontal)	
 legend=0	         =1 display the color scale			
 lnice=0                =1 nice legend arrangement                     
                        (overrides ybox,lx,width,height parameters)    
 lstyle=vertleft 	Vertical, axis label on left side   		
			 =vertright (Vertical, axis label on right side)
			 =horibottom (Horizontal, axis label on bottom)	
 units=		 unit label for legend				
 legendfont=times_roman10    font name for title			
 following are defaults for lstyle=0. They are changed for other lstyles
 lwidth=1.2		 colorscale (legend) width in inches 		
 lheight=height/3     	 colorscale (legend) height in inches		
 lx=1.0		 colorscale (legend) x-position in inches