Program sfgenshotscyk | Generate shots for FWI test 
[SYNOPSIS]
sfgenshotscyk < vel.rsf > shots.rsf wfd=wfd.rsf verb=y nt= ng= ns= dt= amp=1000 fm=10 jsx= jsz=0 jgx=1 jgz=0 sxbeg= szbeg= gxbeg= gzbeg= csdgather=n
[PARAMETERS]
float   | amp | =1000 |   | 	maximum amplitude of ricker 
bool    | csdgather | =n |  [y/n] | 	default, common shot-gather; if n, record at every point
float   | dt | = |   | 	time sampling interval 
float   | fm | =10 |   | 	dominant freq of ricker 
int     | gxbeg | = |   | 	x-begining index of receivers, starting from 0 
int     | gzbeg | = |   | 	z-begining index of receivers, starting from 0 
int     | jgx | =1 |   | 	receiver x-axis jump interval 
int     | jgz | =0 |   | 	receiver z-axis jump interval 
int     | jsx | = |   | 	source x-axis  jump interval  
int     | jsz | =0 |   | 	source z-axis jump interval  
int     | ng | = |   | 	total receivers in each shot 
int     | ns | = |   | 	number of shots 
int     | nt | = |   | 	total modeling time steps 
int     | sxbeg | = |   | 	x-begining index of sources, starting from 0 
int     | szbeg | = |   | 	z-begining index of sources, starting from 0 
bool    | verb | =y |  [y/n] | 	vebosity 
file    | wfd | = |   | 	auxiliary output file name
[DIRECTORY]
user/chenyk
