sfisaac3 (2.0-git)
3D Bending ray tracing in Multi-layered media

        sfisaac3 < refl.rsf > xrefl.rsf aniso=vti.rsf layer= velocity= xgradient= ygradient= zgradient= xref= yref= zref= xinitial= yinitial= xinitial= number= xs= ys= xr= yr= vstatus= order=3 xmin= ymin= xmax= ymax= niter= debug=n tol=0.000001/v_inp[0] ns=3 ns2=nr3+2 ds=1 s0=0 order=3

file aniso=
auxiliary input file name
bool debug=n [y/n]
Debug flag
float ds=1
Step increment
floats layer=
Layer sequence [nr3+1]
int niter=
The number of iterations
int ns=3
Dimension of output reflection points (x,y,z)
int ns2=nr3+2
Dimension of output reflection points (the number of points)
int number=
Number of reflectors
int order=3
Interpolation order
float s0=0
Staring position
double tol=0.000001/v_inp[0]
Assign a default value for tolerance
floats velocity=
Assign velocity km/s [N-1]
int vstatus=
Velocity status (0 for constant v, 1 for gradient v, and 2 for VTI)
floats xgradient=
Assign x-gradient [N-1]
floats xinitial=
float xmax=

float xmin=

float xr=
floats xref=
Assign x-reference point [N-1]
float xs=
floats ygradient=
Assign y-gradient [N-1]
floats yinitial=
float ymax=

float ymin=

float yr=
floats yref=
Assign y-reference point [N-1]
float ys=
floats zgradient=
Assign z-gradient [N-1]
floats zref=
Assign z-reference point [N-1]