Program sfhelm2D_genrec | Generate receiver file for Helmholtz solver. 
[SYNOPSIS]
sfhelm2D_genrec > out.rsf n1=1 n2=1 d1=0.1 d2=0.1 recz= recx0= recdx=
[PARAMETERS]
float   | d1 | =0.1 |   | 	
float   | d2 | =0.1 |   | 	
int     | n1 | =1 |   | 	
int     | n2 | =1 |   | 	
int     | recdx | = |   | 	
int     | recx0 | = |   | 	
int     | recz | = |   | 	
[DIRECTORY]
user/hzhu
