Program sfinterp2 | Multiple-arrival interpolation. 
[SYNOPSIS]
sfinterp2 < in.rsf size=size.rsf > out.rsf grid=grid.rsf sx=0. sz=0. nw=4 plane=0
[PARAMETERS]
file    | grid | = |   | 	auxiliary input file name
int     | nw | =4 |   | 	Interpolation accuracy 
int     | plane | =0 |   | 	0: point-source, 4: plane-wave 
file    | size | = |   | 	auxiliary input file name
float   | sx | =0. |   | 	
float   | sz | =0. |   | 	Shot coordinates 
[DIRECTORY]
user/fomels
