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 PSWIGP - PostScript WIGgle-trace plot of f(x1,x2) via Polygons	
 Best for few traces.  Use PSWIGB (Bitmap version) for many traces.	

 pswigp 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			
 x2=f2,f2+d2,...        array of sampled values in 2nd dimension	
 bias=0.0               data value corresponding to location along axis 2
 perc=100.0             percentile for determining clip		
 clip=(perc percentile) data values < bias+clip and > bias-clip are clipped
 xcur=1.0               wiggle excursion in traces corresponding to clip
 fill=1			=0 for no fill;				
				>0 for pos. fill;			
				<0 for neg. fill			
                               =2 for pos. fill solid, neg. fill grey  
                               =-2for neg. fill solid, pos. fill grey  
                       SHADING: 2<=abs(fill)<=5  2=lightgrey 5=black   
 linewidth=1.0         linewidth in points (0.0 for thinest visible line)
 tracecolor=black       color of traces; should contrast with background
 backcolor=none         color of background; none means no background	
 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	
 wbox=6.0               width in inches of axes box			
 hbox=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)	

 curve=curve1,curve2,...  file(s) containing points to draw curve(s)   
 npair=n1,n2,n2,...            number(s) of pairs in each file         
 curvecolor=black,..    color of curve(s)                              
 curvewidth=axeswidth   width (in points) of curve(s)                  
 curvedash=0            solid curve(s), dash indices 1,...,11 produce  
                        curve(s) with various dash styles              

 Note:  linewidth=0.0 produces the thinest possible line on the output.	
 device.  Thus the result is device-dependent, put generally looks the	
 best for seismic traces.						

 The curve file is an ascii file with the points specified as x1 x2 pairs,
 one pair to a line.  A "vector" of curve files and curve colors may 
 be specified as curvefile=file1,file2,etc. and similarly		
 curvecolor=color1,color2,etc, and the number of pairs of values	
 in each file as npair=npair1,npair2,... .