sfrays2a (2.0-git)
index
system/seismic/Mrays2a.c
Ray tracing in VTI media by a Runge-Kutta integrator.

 
Synopsis
        sfrays2a < vz.rsf > rays.rsf shotfile=shots.rsf anglefile=angles.rsf vel=y order=4 nt= dt= verb=y escvar=n zshot=0. yshot=o[1] + 0.5*(n[1]-1)*d[1] nr= a0=0. amax=360. vx= eta= > rays.rsf
Rays can be plotted with sfplotrays.

 
Parameters
       
 
float a0=0.
minimum angle (if no anglefile)
 
float amax=360.
maximum angle (if no anglefile)
 
string anglefile=
file with initial angles (auxiliary input file name)
 
float dt=
Sampling in time
 
bool escvar=n [y/n]
If y - output escape values, n - trajectories
 
string eta=
eta parameter
 
int nr=
number of angles (if no anglefile)
 
int nt=
Number of time steps
 
int order=4
Interpolation order
 
string shotfile=
file with shot locations (auxiliary input file name)
 
bool vel=y [y/n]
If y, input is velocity; if n, slowness
 
bool verb=y [y/n]
Verbosity flag
 
string vx=
horizontal velocity or slowness
 
float yshot=o[1] + 0.5*(n[1]-1)*d[1]

 
float zshot=0.
shot coordinates (if no shotfile)

 
Used In
       

 
TCCS
        group/ell