sfcell3 (2.0-git)
index
system/seismic/Mcell3.c
Second-order cell ray tracing with locally parabolic rays in 3-D.

 
Synopsis
        sfcell3 < vel.rsf > time.rsf shotfile=shots.rsf anglefile=angles.rsf vel=y order=4 nt=nx*nz na= nb= a0=0. amax=360. b0=0. bmax=180. traj= > rays.rsf
Rays and wavefronts can be displayed with sfplotrays.

 
Parameters
       
 
float a0=0.
First azimuth angle in degrees (if anglefile is not specified)
 
float amax=360.
Maximum azimuth angle in degrees (if anglefile is not specified)
 
string anglefile=
file with initial angles (auxiliary input file name)
 
float b0=0.
First inclination angle in degrees (if anglefile is not specified)
 
float bmax=180.
Maximum inclination angle in degrees (if anglefile is not specified)
 
int na=
Number of azimuths (if anglefile is not specified)
 
int nb=
Number of inclinations (if anglefile is not specified)
 
int nt=nx*nz
number of time steps
 
int order=4
Interpolation accuracy
 
string shotfile=
file with shot locations (auxiliary input file name)
 
string traj=

 
bool vel=y [y/n]
If y, the input is velocity; if n, slowness