Used to select a subset of a 3D binary (not SU but velocity) file.
subset < in_binary_file n1= n2= n3= [ if1= id1s= n1s= if2= id2s= n2s= if3= id3s= n3s= ] > out_binary_file
For the input binary file:
n1 = The number of points in the fastest axis (normally depth or time)
n2 = The number of points in the next fastest axis (normally xlines)
n3 = The number of points in the slowest axis (normally inlines)
For the output binary file :
if1 = The first point to ouput
idls = The increment in points to output
n1s = The total number of points to output
etc for the other two axes. If the output parameters for an axis are left blank, all points are output..
NOT COMPLETED
Example :
1. subset < filein.bin n1=226 n2=371 n3=383 if3s=181 n3s=1 > fileout.bin
This example just outputs the 181th inline from the 3D volume
See also :