SUPSIMAGE - PostScript IMAGE plot of a segy data set         

 supsimage <stdin [optional parameters] | ...                    

 Optional parameters:                                     

 n2=tr.ntr or number of traces in the data set (ntr is an alias for n2)

 d1=tr.d1 or tr.dt/10^6 sampling interval in the fast dimension  
   =.004 for seismic          (if not set)                       
   =1.0 for nonseismic        (if not set)                       

 d2=tr.d2               sampling interval in the slow dimension  
   =1.0                 (if not set)                       

 f1=tr.f1 or tr.delrt/10^3 or 0.0  first sample in the fast dimension  

 f2=tr.f2 or tr.tracr or tr.tracl  first sample in the slow dimension  
   =1.0 for seismic               (if not set)             
   =d2 for nonseismic             (if not set)             

 verbose=0              =1 to print some useful information      

 tmpdir=         if non-empty, use the value as a directory path
                  prefix for storing temporary files; else if the
                  the CWP_TMPDIR environment variable is set use 
                  its value for the path; else use tmpfile()     

 Note that for seismic time domain data, the "fast dimension" is 
 time and the "slow dimension" is usually trace number or range. 
 Also note that "foreign" data tapes may have something unexpected     
 in the d2,f2 fields, use segyclean to clear these if you can afford   
 the processing time or use d2= f2= to override the header values if   
 not.                                                

 See the psimage selfdoc for the remaining parameters.                 

 On NeXT:   supsimage < infile [optional parameters]  | open     

 Trace header fields accessed: ns, ntr, tracr, tracl, delrt, trid,    
      dt, d1, d2, f1, f2                                   

 Credits:

      CWP: Dave Hale and Zhiming Li (psimage, etc.)
         Jack Cohen and John Stockwell (supsimage, etc.)

 Notes:
      When the number of traces isn't known, we need to count
      the traces for psimage.  You can make this value "known"
      either by getparring n2 or by having the ntr field set
      in the trace header.  A getparred value takes precedence
      over the value in the trace header.

      When we do have to count the traces, we use the "tmpfile"
      routine because on many machines it is implemented
      as a memory area instead of a disk file.
      "remove" (aka "unlink" in old unix).

      When we must compute ntr, we don't allocate a 2-d array,
      but just content ourselves with copying trace by trace from
      the data "file" to the pipe into the plotting program.
      Although we could use tr.data, we allocate a trace buffer
      for code clarity.

In /luton/home/mikew/su/su32.9/src/su/graphics/psplot:
 SUPSIMAGE - PostScript IMAGE plot of a segy data set            

 supsimage <stdin [optional parameters] | ...                    

 Optional parameters:                                     

 n2=tr.ntr or number of traces in the data set (ntr is an alias for n2)

 d1=tr.d1 or tr.dt/10^6 sampling interval in the fast dimension  
   =.004 for seismic          (if not set)                       
   =1.0 for nonseismic        (if not set)                       

 d2=tr.d2               sampling interval in the slow dimension  
   =1.0                 (if not set)                       

 f1=tr.f1 or tr.delrt/10^3 or 0.0  first sample in the fast dimension  

 f2=tr.f2 or tr.tracr or tr.tracl  first sample in the slow dimension  
   =1.0 for seismic               (if not set)             
   =d2 for nonseismic             (if not set)             

 verbose=0              =1 to print some useful information      

 tmpdir=         if non-empty, use the value as a directory path
                  prefix for storing temporary files; else if the
                  the CWP_TMPDIR environment variable is set use 
                  its value for the path; else use tmpfile()     

 Note that for seismic time domain data, the "fast dimension" is 
 time and the "slow dimension" is usually trace number or range. 
 Also note that "foreign" data tapes may have something unexpected     
 in the d2,f2 fields, use segyclean to clear these if you can afford   
 the processing time or use d2= f2= to override the header values if   
 not.                                                

 See the psimage selfdoc for the remaining parameters.                 

 On NeXT:   supsimage < infile [optional parameters]  | open     

 Trace header fields accessed: ns, ntr, tracr, tracl, delrt, trid,    
      dt, d1, d2, f1, f2                                   

 Credits:

      CWP: Dave Hale and Zhiming Li (psimage, etc.)
         Jack Cohen and John Stockwell (supsimage, etc.)

 Notes:
      When the number of traces isn't known, we need to count
      the traces for psimage.  You can make this value "known"
      either by getparring n2 or by having the ntr field set
      in the trace header.  A getparred value takes precedence
      over the value in the trace header.

      When we do have to count the traces, we use the "tmpfile"
      routine because on many machines it is implemented
      as a memory area instead of a disk file.
      "remove" (aka "unlink" in old unix).

      When we must compute ntr, we don't allocate a 2-d array,
      but just content ourselves with copying trace by trace from
      the data "file" to the pipe into the plotting program.
      Although we could use tr.data, we allocate a trace buffer
      for code clarity.