本文整理汇总了C++中sf_iaxa函数的典型用法代码示例。如果您正苦于以下问题：C++ sf_iaxa函数的具体用法？C++ sf_iaxa怎么用？C++ sf_iaxa使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了sf_iaxa函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。
示例1: main
int main (int argc, char *argv[])
{
int m, k, l, seed;
sf_file bshuffle,ashuffle;
sf_axis ax,at,ap,av;
int nx,nt,np,nv,iteration,*a1, *a2;
float ***bsh, ***bsh2;
sf_init(argc,argv);
bshuffle=sf_input("in");
ashuffle=sf_output("out");
if (!sf_getint("iteration",&iteration)) iteration=1;
if (!sf_getint("seed",&seed)) seed=2012;
at=sf_iaxa( bshuffle,1); nt=sf_n(at);
ax=sf_iaxa( bshuffle,3); nx=sf_n(ax);
ap=sf_iaxa( bshuffle,2); np=sf_n(ap);
av=sf_iaxa( bshuffle,4); nv=sf_n(av);
bsh=sf_floatalloc3(nt,np,nx);
bsh2=sf_floatalloc3(nt,np,nx);
a1=sf_intalloc(np);
a2=sf_intalloc(np);
sf_warning("ntpx=%d",nt*np*nx);
srand(seed);
for (m=0; m<np; m++) {
a1[m]=rand();
}
bubble(a1, a2, np);
for (k=0; k<nv; k++) {
sf_floatread(bsh[0][0],nt*np*nx,bshuffle);
for(l=0; l<nx; l++) {
for (m=0; m<np; m++) {
memcpy(bsh2[l][m], bsh[l][a2[m]], nt*sizeof(float));
}
}
sf_floatwrite(bsh2[0][0],nt*np*nx,ashuffle);
}
free(bsh[0][0]);
free(bsh[0]);
free(bsh);
free(bsh2[0][0]);
free(bsh2[0]);
free(bsh2);
free(a1);
free(a2);
exit (0);
}
开发者ID:1014511134，项目名称:src，代码行数:54，代码来源:Mshuffle2.c
示例2: main
int main(int argc, char* argv[])
{
sf_init(argc,argv);
sf_file Fin,Fout;
long long int n1,n2,n3;
float d1,o1,d2,o2;
Fin=sf_input ("in" );
sf_axis a1,a2,a3;
a1 = sf_iaxa(Fin,1); n1 = sf_n(a1); d1=sf_d(a1);o1=sf_o(a1);
a2=sf_iaxa(Fin,2);n2=sf_n(a2);d2=sf_d(a2);o2=sf_o(a2);
fprintf(stderr,"%lld %lld %f %f %f %f\n",n1,n2,d1,d2,o1,o2);
int maxoffset;
if (!sf_getint("maxoffset",&maxoffset)) maxoffset=100000000;
Fout=sf_output("out");
sf_putint(Fout,"n2",15);
float temp[15];
int i,j;
int ntrace=0;
for(i=0;i<n2;i++)
for(j=0;j<n2;j++)
{
if((abs(j-i)%2==0)&&(fabs(j-i)*d2)<=maxoffset)
{
ntrace++;
}
}
sf_putint(Fout,"n1",ntrace);
ntrace=0;
for(i=0;i<n2;i++)
for(j=0;j<n2;j++)
{
if((abs(j-i)%2==0)&&(fabs(j-i)*d2)<=maxoffset)
{
float s=o2+i*d2;
float r=o2+j*d2;
float h=(r-s)/2.0;
float x=(s+r)/2;
temp[0]=i;
temp[1]=s;
temp[2]=r;
temp[3]=0;
temp[4]=0;
temp[5]=x;
temp[6]=h;
temp[14]=ntrace;
ntrace++;
fprintf(stderr,"temp[0]=%f %f %f %f %f ntrace=%f\n",temp[0],s,r,h,x,temp[14]);
sf_floatwrite(temp,15,Fout);
}
}
sf_close();
return 0;
}
开发者ID:1014511134，项目名称:src，代码行数:54，代码来源:Mgenheaderallreceiver.c
示例3: main
int main(int argc, char* argv[])
{
bool verb;
sf_file Fu,Fw; /* I/O files */
sf_axis a1,a2,a3; /* cube axes */
float ***uu=NULL, ***ww=NULL;
int *ii,ik;
int nh1,nh2,nh3;
int nb1,nb2,nb3;
int ih1,ih2,ih3;
int ib1,ib2,ib3;
int n3;
int i3;
int j1, j2, j3;
int k1, k2, k3;
int ompchunk;
int lo1,hi1;
int lo2,hi2;
int lo3,hi3;
/*------------------------------------------------------------*/
/* init RSF */
sf_init(argc,argv);
if(! sf_getint("ompchunk",&ompchunk)) ompchunk=1; /* OpenMP data chunk size */
if(! sf_getbool("verb",&verb)) verb=false; /* verbosity flag */
Fu = sf_input ("in" ); /* input field */
Fw = sf_output("out"); /* wigner distribution */
/* read axes */
a1=sf_iaxa(Fu,1); sf_setlabel(a1,"a1"); if(verb) sf_raxa(a1);
a2=sf_iaxa(Fu,2); sf_setlabel(a2,"a2"); if(verb) sf_raxa(a2);
a3=sf_iaxa(Fu,3); sf_setlabel(a3,"a3"); if(verb) sf_raxa(a3);
n3 = sf_n(a3);
if(! sf_getint("nh1",&nh1)) nh1=0;
if(! sf_getint("nh2",&nh2)) nh2=0;
if(! sf_getint("nh3",&nh3)) nh3=0;
if(n3<=1) nh3=0;
if(verb) sf_warning("nh1=%d nh2=%d nh3=%d",2*nh1+1,2*nh2+1,2*nh3+1);
nb1 = sf_n(a1);
nb2 = sf_n(a2);
nb3=2*nh3+1;
uu=sf_floatalloc3(nb1,nb2,nb3);
ww=sf_floatalloc3(nb1,nb2,nb3);
ii = sf_intalloc(nb3);
for(ib3=0;ib3<nb3;ib3++) {
ii[ib3]=ib3;
}
/*------------------------------------------------------------*/
/* low end on axis 3 */
/*------------------------------------------------------------*/
for( ib3=0; ib3<nb3; ib3++) {
for( ib2=0; ib2<nb2; ib2++) {
for( ib1=0; ib1<nb1; ib1++) {
ww[ib3][ib2][ib1] = 0.;
}
}
}
sf_floatread(uu[0][0],nb1*nb2*nb3,Fu);
for( ih3=-nh3; ih3<nh3+1; ih3++) { lo3=SF_ABS(ih3); hi3=nb3-lo3;
for( ih2=-nh2; ih2<nh2+1; ih2++) { lo2=SF_ABS(ih2); hi2=nb2-lo2;
for(ih1=-nh1; ih1<nh1+1; ih1++) { lo1=SF_ABS(ih1); hi1=nb1-lo1;
for( ib3=lo3; ib3<nh3+1;ib3++) { j3=ii[ib3-ih3]; k3=ii[ib3+ih3];
#ifdef _OPENMP
#pragma omp parallel for schedule(dynamic,ompchunk) \
private(ib1,ib2,j2,j1,k2,k1) \
shared(ib3,j3,k3,ih2,ih1,lo2,hi2,lo1,hi1,uu,ww)
#endif
for( ib2=lo2; ib2<hi2; ib2++) { j2=ib2-ih2; k2=ib2+ih2;
for(ib1=lo1; ib1<hi1; ib1++) { j1=ib1-ih1; k1=ib1+ih1;
ww[ib3][ib2][ib1] += uu[j3][j2][j1]
* uu[k3][k2][k1];
} /* nb1 */
} /* nb2 */
} /* nb3 */
} /* nh1 */
} /* nh2 */
} /* nh3 */
for(ih3=0;ih3<nh3+1;ih3++) {
sf_floatwrite(ww[ih3][0],nb1*nb2,Fw);
}
//.........这里部分代码省略.........
开发者ID:1014511134，项目名称:src，代码行数:101，代码来源:Mwdf.c
示例4: main
//.........这里部分代码省略.........
if (!sf_getbool("verb",&verb)) verb=false; /* Verbosity flag */
if (!sf_getbool("snap",&snap)) snap=false; /* Wavefield snapshots flag */
if (!sf_getbool("expl",&expl)) expl=false; /* Multiple sources, one wvlt*/
if (!sf_getbool("dabc",&dabc)) dabc=false; /* Absorbing BC */
if (!sf_getbool("cden",&cden)) cden=false; /* Constant density */
if (!sf_getbool("adj",&adj)) adj=false; /* adjoint flag */
if (!sf_getbool("free",&fsrf) && !sf_getbool("fsrf",&fsrf)) fsrf=false; /* Free surface flag */
if (!sf_getint("nbell",&nbell)) nbell=5; /* gaussian for source injection */
if (!sf_getbool("optfd",&optfd)) optfd=false; /* optimized FD coefficients flag */
if (!sf_getint("fdorder",&fdorder)) fdorder=4; /* spatial FD order */
if (!sf_getbool("hybridbc",&hybrid)) hybrid=false; /* hybrid Absorbing BC */
if (!sf_getbool("sinc",&sinc)) sinc=false; /* sinc source injection */
/* Initialize variables */
file_wav = sf_input("in"); /* wavelet */
file_vel = sf_input("vel"); /* velocity */
file_src = sf_input("sou"); /* sources */
file_rec = sf_input("rec"); /* receivers */
file_dat = sf_output("out"); /* data */
if (snap) file_wfl = sf_output("wfl"); /* wavefield */
if (!cden) {
if (sf_getstring("cden")) {
file_den = sf_input ("den"); /* density */
} else {
cden = true;
if (verb) sf_warning("No density file provided, running with constant density");
}
}
at = sf_iaxa(file_wav,2); sf_setlabel(at,"t"); if(verb) sf_raxa(at); /* time */
az = sf_iaxa(file_vel,1); sf_setlabel(az,"z"); if(verb) sf_raxa(az); /* depth */
ax = sf_iaxa(file_vel,2); sf_setlabel(ax,"x"); if(verb) sf_raxa(ax); /* space */
ay = sf_iaxa(file_vel,3); sf_setlabel(ay,"y"); if(verb) sf_raxa(ay); /* space */
as = sf_iaxa(file_src,2); sf_setlabel(as,"s"); if(verb) sf_raxa(as); /* sources */
ar = sf_iaxa(file_rec,2); sf_setlabel(ar,"r"); if(verb) sf_raxa(ar); /* receivers */
nt = sf_n(at); dt = sf_d(at);
nz = sf_n(az); dz = sf_d(az);
nx = sf_n(ax); dx = sf_d(ax);
ny = sf_n(ay); dy = sf_d(ay);
ns = sf_n(as);
nr = sf_n(ar);
/* other execution parameters */
if (snap) {
if (!sf_getint("jsnap",&jsnap)) jsnap=nt;
/* # of t steps at which to save wavefield */
}
if (!sf_getint("jdata",&jdata)) jdata=1;
/* # of t steps at which to save receiver data */
/* setup output data header */
sf_oaxa(file_dat,ar,1);
sf_setn(at,(nt-1)/jdata+1);
sf_setd(at,dt*jdata);
sf_oaxa(file_dat,at,2);
/* wavefield cut params */
/* setup output wavefield header */
if (snap) {
if (!sf_getint ("nqz",&nqz)) nqz=sf_n(az); /* Saved wfld window nz */
开发者ID:housian0724，项目名称:src，代码行数:67，代码来源:Mawefd3d.c
示例5: main
int main(int argc, char* argv[])
{
bool verb; /* verbosity flag */
float clip; /* threshold (clip value) */
sf_file Fc; /* cube file */
sf_file Fl; /* list file */
extern int fseeko(FILE *stream, off_t offset, int whence);
sf_axis ax,ay,az;
sf_axis aa;
int ix,iy,iz;
int nx,ny,nz,nj,na;
int nk=0,jk;
float **cube;
float dx,dy,dz;
float x0,y0,z0;
FILE* tfile;
char* tname;
float t2[3],t3[4];
/*------------------------------------------------------------*/
/* init RSF */
sf_init(argc,argv);
if(! sf_getbool("verb",&verb)) verb=false;
if(! sf_getfloat("clip",&clip)) clip=0;
Fc = sf_input ( "in"); /* input cube */
Fl = sf_output("out"); /* output list */
/* read axes*/
az=sf_iaxa(Fc,1);
sf_setlabel(az,"z");
ax=sf_iaxa(Fc,2);
sf_setlabel(ax,"x");
ay=sf_iaxa(Fc,3);
sf_setlabel(ay,"y");
nz=sf_n(az);
z0=sf_o(az);
dz=sf_d(az);
nx=sf_n(ax);
x0=sf_o(ax);
dx=sf_d(ax);
ny=sf_n(ay);
y0=sf_o(ay);
dy=sf_d(ay);
na=0;
if(ny>1) {
if(verb) sf_warning("initiating 3D points");
nj=4;
} else {
if(verb) sf_warning("initiating 2D points");
nj=3;
}
/*------------------------------------------------------------*/
cube = sf_floatalloc2(nz,nx);
tfile = sf_tempfile(&(tname), "w+b");
for (iy=0; iy<ny; iy++) {
/* if(verb) sf_warning("iy=%d",iy);*/
sf_floatread(cube[0],nz*nx,Fc);
nk=0;
for (ix=0; ix<nx; ix++) {
for (iz=0; iz<nz; iz++) {
if( fabs(cube[ix][iz]) > clip) {
nk++;
}
}
}
if(ny>1) {
jk=0;
for (ix=0; ix<nx; ix++) {
for (iz=0; iz<nz; iz++) {
if( fabs(cube[ix][iz]) > clip) {
t3[0] = x0 + ix * dx;
t3[1] = y0 + iy * dy;
t3[2] = z0 + iz * dz;
t3[3] = cube[ix][iz];
fseeko(tfile,jk*4*sizeof(float),SEEK_SET);
fwrite( t3, sizeof(float),4,tfile);
jk++;
}
}
}
} else {
jk=0;
for (ix=0; ix<nx; ix++) {
for (iz=0; iz<nz; iz++) {
if( fabs(cube[ix][iz]) > clip) {
t2[0] = x0 + ix * dx;
//.........这里部分代码省略.........
开发者ID:krushev36，项目名称:src，代码行数:101，代码来源:Mcube2list.c
示例6: main
int main(int argc, char* argv[])
{
bool verb,correct;
int nt,nz,nx,m2,nk,nzx,nz2,nx2,n2,pad1;
int snap, wfnt;
float dt, wfdt;
char *mode;
sf_complex **ini, **cc, **dd;
sf_file Fi,Fo,Fs,Fa,Fb; /* I/O files */
sf_axis az,ax,at; /* cube axes */
sf_complex **lt, **rt,***wvfld,*alpha,*beta;
sf_file left, right;
sf_init(argc,argv);
if(!sf_getbool("verb",&verb)) verb=true; /* verbosity */
if(!sf_getint("nt",&nt)) sf_error("Need nt!");
if(!sf_getfloat("dt",&dt)) sf_error("Need dt!");
if(!sf_getint("snap",&snap)) snap=0; /* interval for snapshots */
if(!sf_getbool("correct",&correct)) correct=false; /*jingwei's correction*/
mode=sf_getstring("mode"); /* default mode is pspi */
if (mode[0]=='p') {sf_warning(">>>>> Using PSPI+PSPI! <<<<< \n");}
else if (mode[0]=='n') {sf_warning(">>>>> Using NSPS+NSPS! <<<<< \n");}
else if (mode[0]=='m') {sf_warning(">>>>> Using NSPS+PSPI! <<<<< \n");}
else if (mode[0]=='x') {sf_warning(">>>>> Using PSPI+NSPS! <<<<< \n");}
else sf_error("Specify mode!");
/* setup I/O files */
Fi = sf_input ("in" );
Fo = sf_output("out");
sf_settype(Fo,SF_COMPLEX);
/* Read/Write axes */
az = sf_iaxa(Fi,1); nz = sf_n(az);
ax = sf_iaxa(Fi,2); nx = sf_n(ax);
at = sf_iaxa(Fi,3);
sf_oaxa(Fo,az,1);
sf_oaxa(Fo,ax,2);
if (snap > 0) {
Fs = sf_output("snaps"); /* (optional) snapshot file */
wfnt = (int)(nt-1)/snap + 1;
wfdt = dt*snap;
sf_oaxa(Fs,az,1);
sf_oaxa(Fs,ax,2);
sf_setn(at,wfnt);
sf_setd(at,wfdt);
sf_oaxa(Fs,at,3);
sf_settype(Fs,SF_COMPLEX);
} else Fs=NULL;
if (!sf_getint("pad1",&pad1)) pad1=1; /* padding factor on the first axis */
nz2 = kiss_fft_next_fast_size(nz*pad1);
nx2 = kiss_fft_next_fast_size(nx);
nk = nz2*nx2; /*wavenumber*/
nzx = nz*nx;
/* propagator matrices */
left = sf_input("left");
right = sf_input("right");
if (!sf_histint(left,"n1",&n2) || n2 != nzx) sf_error("Need n1=%d in left",nzx);
if (!sf_histint(left,"n2",&m2)) sf_error("Need n2= in left");
if (!sf_histint(right,"n1",&n2) || n2 != m2) sf_error("Need n1=%d in right",m2);
if (!sf_histint(right,"n2",&n2) || n2 != nk) sf_error("Need n2=%d in right",nk);
lt = sf_complexalloc2(nzx,m2);
rt = sf_complexalloc2(m2,nk);
sf_complexread(lt[0],nzx*m2,left);
sf_complexread(rt[0],m2*nk,right);
sf_fileclose(left);
sf_fileclose(right);
ini=sf_complexalloc2(nz,nx);
cc=sf_complexalloc2(nz,nx);
dd=sf_complexalloc2(nz,nx);
sf_complexread(ini[0],nzx,Fi);
sf_fileclose(Fi);
if (snap>0) wvfld = sf_complexalloc3(nz,nx,wfnt);
else wvfld = NULL;
if (correct) {
Fa = sf_input("alpha");
Fb = sf_input("beta");
if (!sf_histint(Fa,"n1",&n2) || n2 != nzx) sf_error("Need n1=%d in alpha",nzx);
if (!sf_histint(Fb,"n1",&n2) || n2 != nk) sf_error("Need n1=%d in beta",nk);
alpha = sf_complexalloc(nzx);
beta = sf_complexalloc(nk);
//.........这里部分代码省略.........
开发者ID:Seislet，项目名称:src，代码行数:101，代码来源:Mcorrectwave2.c
示例7: main
int main(int argc, char* argv[])
{
int ix, iz, jx, jz,ixx,izz,ixf,izf,i,j,im, jm,nx,nz,nxf,nzf,nxpad,nzpad,it,ii,jj;
float kxmax,kzmax;
float f0, t, t0, dx, dz, dxf, dzf,dt, dkx, dkz, dt2;
int mm, nvx, nvz, ns;
int hnkx, hnkz, nkx, nkz, nxz, nkxz;
int hnkx1, hnkz1, nkx1, nkz1;
int isx, isz, isxm, iszm; /*source location */
int itaper; /* tapering or not for spectrum of oprtator*/
int nstep; /* every nstep in spatial grids to calculate filters sparsely*/
float *coeff_1dx, *coeff_1dz, *coeff_2dx, *coeff_2dz; /* finite-difference coefficient */
float **apx, **apz, **apxx, **apzz; /* polarization operator of P-wave for a location */
float **apxs, **apzs, **apxxs, **apzzs; /* polarization operator of SV-wave for a location */
float ****ex, ****ez; /* operator for whole model for P-wave*/
float ****exs, ****ezs; /* operator for whole model for SV-wave*/
float **exx, **ezz; /* operator for constant model for P-wave*/
float **exxs, **ezzs; /* operator for constant model for SV-wave*/
float **vp0, **vs0, **epsi, **del, **theta; /* velocity model */
float **p1, **p2, **p3, **q1, **q2, **q3, **p3c, **q3c, **sum; /* wavefield array */
float *kx, *kz, *kkx, *kkz, *kx2, *kz2, **taper;
clock_t t1, t2, t3, t4;
float timespent;
float A, fx, fz;
int isep=1;
int ihomo=1;
char *tapertype;
double vp2, vs2, ep2, de2, the;
sf_init(argc,argv);
sf_file Fo1, Fo2, Fo3, Fo4, Fo5, Fo6, Fo7, Fo8, Fo9, Fo10, Fo11, Fo12;
t1=clock();
/* wavelet parameter for source definition */
f0=30.0;
t0=0.04;
A=1.0;
/* time samping paramter */
if (!sf_getint("ns",&ns)) ns=301;
if (!sf_getfloat("dt",&dt)) dt=0.001;
if (!sf_getint("isep",&isep)) isep=0; /* if isep=1, separate wave-modes */
if (!sf_getint("ihomo",&ihomo)) ihomo=0; /* if ihomo=1, homogeneous medium */
if (NULL== (tapertype=sf_getstring("tapertype"))) tapertype="D"; /* taper type*/
if (!sf_getint("nstep",&nstep)) nstep=1; /* grid step to calculate operators: 1<=nstep<=5 */
sf_warning("isep=%d",isep);
sf_warning("ihomo=%d",ihomo);
sf_warning("tapertype=%s",tapertype);
sf_warning("nstep=%d",nstep);
sf_warning("ns=%d dt=%f",ns,dt);
sf_warning("read velocity model parameters");
/* setup I/O files */
sf_file Fvp0, Fvs0, Feps, Fdel, Fthe;
Fvp0 = sf_input ("in"); /* vp0 using standard input */
Fvs0 = sf_input ("vs0"); /* vs0 */
Feps = sf_input ("epsi"); /* epsi */
Fdel = sf_input ("del"); /* delta */
Fthe = sf_input ("the"); /* theta */
/* Read/Write axes */
sf_axis az, ax;
az = sf_iaxa(Fvp0,1); nvz = sf_n(az); dz = sf_d(az)*1000.0;
ax = sf_iaxa(Fvp0,2); nvx = sf_n(ax); dx = sf_d(ax)*1000.0;
fx=sf_o(ax)*1000.0;
fz=sf_o(az)*1000.0;
/* source definition */
isx=nvx/2;
isz=nvz/2;
//isz=nvz*2/5;
/* wave modeling space */
nx=nvx;
nz=nvz;
nxpad=nx+2*m;
nzpad=nz+2*m;
sf_warning("fx=%f fz=%f dx=%f dz=%f",fx,fz,dx,dz);
sf_warning("nx=%d nz=%d nxpad=%d nzpad=%d", nx,nz,nxpad,nzpad);
vp0=sf_floatalloc2(nz,nx);
vs0=sf_floatalloc2(nz,nx);
//.........这里部分代码省略.........
开发者ID:1014511134，项目名称:src，代码行数:101，代码来源:Mtti2delasticsep.c
示例8: main
int main(int argc, char* argv[])
{
int i,j,im,jm,nx,nz,nxpad,nzpad,it,ii,jj;
float f0, t, t0, dx, dz,dt, dt2;
int mm, nvx, nvz, ns;
int isx, isz, isxm, iszm; /*source location */
float *coeff_1dx, *coeff_1dz, *coeff_2dx, *coeff_2dz; /* finite-difference coefficient */
float **vp0, **vs0, **epsi, **del, **theta; /* velocity model */
float **p1, **p2, **p3, **q1, **q2, **q3; /* wavefield array */
float A, fx, fz;
clock_t t1, t2, t3;
sf_init(argc,argv);
sf_file Fo1, Fo2;
float timespent;
t1 = clock();
/* wavelet parameter for source definition */
f0=30.0;
t0=0.04;
A=1.0;
/* time samping paramter */
if (!sf_getint("ns",&ns)) ns=301;
if (!sf_getfloat("dt",&dt)) dt=0.001;
sf_warning("ns=%d dt=%f",ns,dt);
sf_warning("read velocity model parameters");
/* setup I/O files */
sf_file Fvp0, Fvs0, Feps, Fdel, Fthe;
Fvp0 = sf_input ("in"); /* vp0 using standard input */
Fvs0 = sf_input ("vs0"); /* vs0 */
Feps = sf_input ("epsi"); /* epsi */
Fdel = sf_input ("del"); /* delta */
Fthe = sf_input ("the"); /* theta */
/* Read/Write axes */
sf_axis az, ax;
az = sf_iaxa(Fvp0,1); nvz = sf_n(az); dz = sf_d(az)*1000.0;
ax = sf_iaxa(Fvp0,2); nvx = sf_n(ax); dx = sf_d(ax)*1000.0;
fx=sf_o(ax)*1000.0;
fz=sf_o(az)*1000.0;
/* source definition */
isx=nvx/2;
isz=nvz/2;
//isz=nvz*2/5;
/* wave modeling space */
nx=nvx;
nz=nvz;
nxpad=nx+2*_m;
nzpad=nz+2*_m;
sf_warning("fx=%f fz=%f dx=%f dz=%f",fx,fz,dx,dz);
sf_warning("nx=%d nz=%d nxpad=%d nzpad=%d", nx,nz,nxpad,nzpad);
vp0=sf_floatalloc2(nz,nx);
vs0=sf_floatalloc2(nz,nx);
epsi=sf_floatalloc2(nz,nx);
del=sf_floatalloc2(nz,nx);
theta=sf_floatalloc2(nz,nx);
int nxz=nx*nz;
mm=2*_m+1;
dt2=dt*dt;
isxm=isx+_m; /* source's x location */
iszm=isz+_m; /* source's z-location */
/* read velocity model */
sf_floatread(vp0[0],nxz,Fvp0);
sf_floatread(vs0[0],nxz,Fvs0);
sf_floatread(epsi[0],nxz,Feps);
sf_floatread(del[0],nxz,Fdel);
sf_floatread(theta[0],nxz,Fthe);
for(i=0;i<nx;i++)
for(j=0;j<nz;j++)
theta[i][j] *= SF_PI/180.0;
Fo1 = sf_output("out"); /* Elastic-wave x-component */
Fo2 = sf_output("Elasticz"); /* Elastic-wave z-component */
/* setup I/O files */
puthead3(Fo1, nz, nx, 1, dz/1000.0, dx/1000.0, dt, fz/1000.0, fx/1000.0, 0.0);
puthead3(Fo2, nz, nx, 1, dz/1000.0, dx/1000.0, dt, fz/1000.0, fx/1000.0, 0.0);
/****************begin to calculate wavefield****************/
/****************begin to calculate wavefield****************/
sf_warning("==================================================");
sf_warning("== Porpagation Using Elastic Wave Eq. ==");
//.........这里部分代码省略.........
开发者ID:filippo82，项目名称:src，代码行数:101，代码来源:Mtti2de.c
示例9: main
int main (int argc, char* argv[])
{
bool top;
fint1 sft;
int ext;
float a,n,f,da,a0,t0,dt,s;
int fint,na,nx,nz,nt;
sf_axis ax,az,at,aa;
int ix,iz,it,ia;
float **stk=NULL, **ang=NULL, *tmp=NULL, *vel=NULL;
sf_file Fstk=NULL, Fang=NULL, velocity=NULL;
sf_init (argc,argv);
/*------------------------------------------------------------*/
Fstk = sf_input("in");
Fang = sf_output("out");
if (SF_FLOAT != sf_gettype(Fstk)) sf_error("Need float input");
az=sf_iaxa(Fstk,1); nz=sf_n(az);
at=sf_iaxa(Fstk,2); nt=sf_n(at); t0=sf_o(at); dt=sf_d(at);
ax=sf_iaxa(Fstk,3); nx=sf_n(ax);
if (!sf_getint ("na",&na)) na=nt; /* number of angles*/
if (!sf_getfloat("da",&da)) da=90/(nt-1); /* angle sampling */
if (!sf_getfloat("a0",&a0)) a0=0.; /* angle origin */
aa = sf_maxa(na,a0,da);
sf_oaxa(Fang,aa,2);
if (!sf_getint("extend",&ext)) ext=4; /* tmp extension */
/*------------------------------------------------------------*/
if (!sf_getbool("top",&top)) top=false; /* velocity scaling option */
if (top) {
velocity = sf_input("velocity");
vel = sf_floatalloc(nz);
} else {
velocity = NULL;
vel = NULL;
}
stk = sf_floatalloc2(nz,nt);
ang = sf_floatalloc2(nz,na);
tmp = sf_floatalloc(nt);
sft = fint1_init(ext,nt, 0);
for (ix = 0; ix < nx; ix++) {
sf_floatread(stk[0],nz*nt,Fstk);
if (top) sf_floatread(vel,nz,velocity);
/*------------------------------------------------------------*/
for (iz = 0; iz < nz; iz++) {
for (it = 0; it < nt; it++) {
tmp[it] = stk[it][iz];
}
fint1_set(sft,tmp);
for (ia=0; ia < na; ia++) {
a = a0+ia*da; /* ang or p */
if (top) {
s = a*vel[iz];
if (s >= 1.) {
n = t0 - 10.*dt;
} else {
n = s/sqrtf(1.0-s*s);
}
} else {
n = 1.0/(sinf(a/180.0*SF_PI)); /* 1/sin : no angle close to 0 */
}
f = (n - t0) / dt;
fint = f;
if (fint >= 0 && fint < nt) {
ang[ia][iz] = fint1_apply(sft,fint,f-fint,false);
} else {
ang[ia][iz] = 0.;
}
}
}
/*------------------------------------------------------------*/
sf_floatwrite(ang[0],nz*na,Fang);
}
exit (0);
}
开发者ID:1014511134，项目名称:src，代码行数:95，代码来源:Misin2ang.c
示例10: main
int main (int argc, char ** argv)
{
/* RSF variables */
bool verb;
float *dat=NULL, **datf=NULL, **image=NULL, **tr=NULL, **ts=NULL, **trs=NULL;
float **px=NULL, **pz=NULL;
sf_file Fin=NULL, Fout=NULL, Ftt=NULL;
sf_axis a1,a2,a1t,a2t,a3t,ax,az;
int nf,ntaper,i1,i2,i2t,itt;
float fmax,df,theta,dtheta,tg,tgtap,tmin,xs,xr,eps;
aalias aa;
fslice tabtt=NULL;
int n1,n2,n1t,n2t,n3t,nx,nz;
float o1,d1,o2,d2,o1t,d1t,o2t,d2t,o3t,d3t,ox,oz,dx,dz;
sf_init(argc,argv);
Fin = sf_input ("in" );
Fout = sf_output ("out" );
Ftt = sf_input ("ttfile" );
/* axes */
a1 = sf_iaxa(Fin,1); /* data */
a2 = sf_iaxa(Fin,2); /* data */
a1t = sf_iaxa(Ftt,1); /* traveltime */
a2t = sf_iaxa(Ftt,2); /* traveltime */
a3t = sf_iaxa(Ftt,3); /* traveltime */
o1 = sf_o(a1); n1 = sf_n(a1); d1 = sf_d(a1);
o2 = sf_o(a2); n2 = sf_n(a2); d2 = sf_d(a2);
o1t = sf_o(a1t); n1t = sf_n(a1t); d1t = sf_d(a1t);
o2t = sf_o(a2t); n2t = sf_n(a2t); d2t = sf_d(a2t);
o3t = sf_o(a3t); n3t = sf_n(a3t); d3t = sf_d(a3t);
/* migration parameters */
if(! sf_getbool("verb",&verb)) verb = false; /* verbosity flag */
if(! sf_getfloat("theta",&theta)) theta = 30.; /* maximum dip */
if(! sf_getfloat("dtheta",&dtheta)) dtheta = theta/3; /* taper zone */
if(dtheta>theta) dtheta=theta;
if(! sf_getfloat("df",&df)) df = 5.; /* anti-aliasing sampling */
if(!sf_getfloat("fmax",&fmax)) fmax=.5/d1;
if(fmax>(.5/d1)) fmax=.5/d1;
if (!sf_getint("ntaper",&ntaper)) ntaper=11;
if(!sf_getfloat("tmin",&tmin)) tmin=3*d1;
if(!sf_getfloat("xs",&xs)) sf_error("missing xs parameter\n");
/* image parameters */
if (!sf_getint("nx",&nx)) nx=n2t;
if(!sf_getfloat("ox",&ox)) ox=o2t;
if(!sf_getfloat("dx",&dx)) dx=d2t;
if (!sf_getint("nz",&nz)) nz=n1t;
if(!sf_getfloat("oz",&oz)) oz=o1t;
if(!sf_getfloat("dz",&dz)) dz=d1t;
/* checking dimensions */
if((dx!=d2t)||(dz!=d1t))
sf_error("sampling interval have to be the same in:\n"
" image and traveltime file\n");
if(ox<o2t) ox=o2t;
if(oz<o1t) oz=o1t;
if((ox+(nx-1)*dx)>(o2t+(n2t-1)*d2t)) nx=floor(((o2t+(n2t-1)*d2t)-ox)/dx)+1;
if((oz+(nz-1)*dz)>(o1t+(n1t-1)*d1t)) nz=floor(((o1t+(n1t-1)*d1t)-oz)/dz)+1;
/* output axis */
ax = sf_maxa(nx,ox,dx); if(verb) sf_raxa(ax);
az = sf_maxa(nz,oz,dz); if(verb) sf_raxa(az);
sf_oaxa(Fout,az,1);
sf_oaxa(Fout,ax,2);
/* anti-aliasing */
/* df = fmax; */
nf = initAalias(-1,verb,fmax,df,n1,d1,&aa);
/* fprintf(stderr,"forcing nf=%d df=%f\n",nf,df); */
/* aperture angle */
tg = tan(SF_PI*theta/180);
tgtap = tan(SF_PI*(theta-dtheta)/180);
if(verb) sf_warning("tgmax=%f tgtap=%f",tg,tgtap);
/* allocating */
dat = sf_floatalloc(n1);
image = sf_floatalloc2(nz,nx);
datf = sf_floatalloc2 (n1,nf);
ts = sf_floatalloc2(n1t,n2t);
tr = sf_floatalloc2(n1t,n2t);
trs = sf_floatalloc2(n1t,n2t);
px = sf_floatalloc2(n1t,n2t);
pz = sf_floatalloc2(n1t,n2t);
if(verb) sf_warning("initializing traveltime loading");
/* initializing traveltime maps */
tabtt = fslice_init(n1t*n2t,n3t,sizeof(float));
fslice_load(Ftt,tabtt,SF_FLOAT);
if(verb) sf_warning("traveltime loading has finished");
/* reading the source-slice from traveltime table */
eps = .01*d2;
itt = floor((xs+eps-o3t)/d3t);
fslice_get(tabtt,itt,ts[0]);
if(verb) sf_warning("traveltime table from source was read");
//.........这里部分代码省略.........
开发者ID:1014511134，项目名称:src，代码行数:101，代码来源:Mkhshot.c
示例11: main
int main(int argc, char* argv[])
{
/* Laplacian coefficients */
float c0=-30./12.,c1=+16./12.,c2=- 1./12.;
bool verb,free, ifoneway, ifsponge; /* verbose flag */
sf_file Fw=NULL,Fv=NULL,Fr=NULL,Fo=NULL; /* I/O files */
sf_axis at,az,ax; /* cube axes */
int it,iz,ix,nb; /* index variables */
int nt,nz,nx;
float dt,dz,dx,idx,idz,dt2;
float *ww,**vv,**rr; /* I/O arrays*/
float **um,**uo,**up,**ud;/* tmp arrays */
#ifdef _OPENMP
/* Testing for OpenMP */
double start_time, end_time;
#endif
sf_init(argc,argv);
/* OMP parameters */
#ifdef _OPENMP
omp_init();
#endif
if(! sf_getbool("verb",&verb)) verb=0;
if(! sf_getbool("free",&free)) free=false;
if(! sf_getbool("ifoneway",&ifoneway)) ifoneway=true;
if(! sf_getbool("ifsponge",&ifsponge)) ifsponge=true;
if(! sf_getint("nb",&nb)) nb=5;
/* setup I/O files */
Fw = sf_input ("in" );
Fo = sf_output("out");
Fv = sf_input ("vel");
Fr = sf_input ("ref");
/* Read/Write axes */
at = sf_iaxa(Fw,1); nt = sf_n(at); dt = sf_d(at);
az = sf_iaxa(Fv,1); nz = sf_n(az); dz = sf_d(az);
ax = sf_iaxa(Fv,2); nx = sf_n(ax); dx = sf_d(ax);
sf_oaxa(Fo,az,1);
sf_oaxa(Fo,ax,2);
sf_oaxa(Fo,at,3);
dt2 = dt*dt;
idz = 1/(dz*dz);
idx = 1/(dx*dx);
/* read wavelet, velocity & reflectivity */
ww=sf_floatalloc(nt); sf_floatread(ww ,nt ,Fw);
vv=sf_floatalloc2(nz,nx); sf_floatread(vv[0],nz*nx,Fv);
rr=sf_floatalloc2(nz,nx); sf_floatread(rr[0],nz*nx,Fr);
/* allocate temporary arrays */
um=sf_floatalloc2(nz,nx);
uo=sf_floatalloc2(nz,nx);
up=sf_floatalloc2(nz,nx);
ud=sf_floatalloc2(nz,nx);
for (iz=0; iz<nz; iz++) {
for (ix=0; ix<nx; ix++) {
um[ix][iz]=0;
uo[ix][iz]=0;
up[ix][iz]=0;
ud[ix][iz]=0;
}
}
/* MAIN LOOP */
if(verb) fprintf(stderr,"\n");
/* Starting timer */
#ifdef _OPENMP
start_time = omp_get_wtime();
#endif
for (it=0; it<nt; it++)
{
if(verb) fprintf(stderr,"\b\b\b\b\b%d",it);
/* 4th order laplacian */
if(ifoneway)
{
#ifdef _OPENMP
#pragma omp parallel for default(none) \
private(ix,iz) \
shared(ud,nb,uo,c0,c1,c2,nx,nz,idx,idz)
#endif
for (iz=nb; iz<nz-nb; iz++) {
for (ix=nb; ix<nx-nb; ix++) {
ud[ix][iz] =
c0* uo[ix ][iz ] * (idx+idz) +
c1*(uo[ix-1][iz ] + uo[ix+1][iz ])*idx +
c2*(uo[ix-2][iz ] + uo[ix+2][iz ])*idx +
c1*(uo[ix ][iz-1] + uo[ix ][iz+1])*idz +
c2*(uo[ix ][iz-2] + uo[ix ][iz+2])*idz;
//.........这里部分代码省略.........
开发者ID:1014511134，项目名称:src，代码行数:101，代码来源:Mafd2domp.c
示例12: main
//.........这里部分代码省略.........
Ffden = sf_input("fden"); /*forward density*/
Fbvel = sf_input("bvel"); /*backward velocity*/
Fbden = sf_input("bden"); /*backward velocity*/
if (wantrecord) {
Frcd = sf_input("rec"); /*record*/
} else {
Frcd = sf_output("rec"); /*record*/
}
Fimg1 = sf_output("out"); /*Imaging*/
Fimg2 = sf_output("img2"); /*Imaging*/
if (wantwf) {
Ftmpwf = sf_output("tmpwf");/*wavefield snap*/
Ftmpbwf = sf_output("tmpbwf");
}
FGx = sf_input("Gx");
FGz = sf_input("Gz");
Fsxx = sf_input("sxx");
Fsxz = sf_input("sxz");
Fszx = sf_input("szx");
Fszz = sf_input("szz");
if (SF_FLOAT != sf_gettype(Ffvel)) sf_error("Need float input");
if (SF_FLOAT != sf_gettype(Ffden)) sf_error("Need float input");
if (SF_FLOAT != sf_gettype(Fbvel)) sf_error("Need float input");
if (SF_FLOAT != sf_gettype(Fbden)) sf_error("Need float input");
if (SF_FLOAT != sf_gettype(Fsrc)) sf_error("Need float input");
/*--- parameters of source ---*/
srcpar srcp;
srcp = createsrc();
at = sf_iaxa(Fsrc, 1); nt = sf_n(at); dt = sf_d(at);
if (!sf_getbool("srcdecay", &srcdecay)) srcdecay=SRCDECAY;
/*source decay*/
if (!sf_getint("srcrange", &srcrange)) srcrange=SRCRANGE;
/*source decay range*/
if (!sf_getfloat("srctrunc", &srctrunc)) srctrunc=SRCTRUNC;
/*trunc source after srctrunc time (s)*/
srcp->nt = nt; srcp->dt = dt;
srcp->decay = srcdecay; srcp->range=srcrange; srcp->trunc=srctrunc;
loadsrc(srcp, Fsrc);
/*--- parameters of SG LFD Coefficient ---*/
ax = sf_iaxa(Ffvel, 2); nxb = sf_n(ax); dx = sf_d(ax); ox = sf_o(ax);
az = sf_iaxa(Ffvel, 1); nzb = sf_n(az); dz = sf_d(az); oz = sf_o(az);
if (!sf_histint(FGx, "n1", &nxz)) sf_error("No n1= in input");
if (nxz != nxb*nzb) sf_error (" Need nxz = nxb*nzb");
if (!sf_histint(FGx,"n2", &lenx)) sf_error("No n2= in input");
if (!sf_histint(FGz,"n2", &lenz)) sf_error("No n2= in input");
initsglfdcoe(nxb, nzb, lenx, lenz);
loadcoe(nzb, nxb, FGx, FGz);
loadschm(Fsxx, Fsxz, Fszx, Fszz);
marg = getmarg();
/* pml parameters */
pmlpar pmlp;
pmlp = creatpmlpar();
if (!sf_getint("pmlsize", &pmlout)) pmlout=PMLOUT;
/* size of PML layer */
if (!sf_getint("pmld0", &pmld0)) pmld0=PMLD0;
/* PML parameter */
if (!sf_getbool("decay",&decay)) decay=DECAY_FLAG;
开发者ID:1014511134，项目名称:src，代码行数:67，代码来源:Msglfdrtm2.c
示例13: main
int main(int argc, char* argv[])
{
bool verb;
int it,iz,im,ik,ix,i,j; /* index variables */
int nt,nz,nx, m2, nk, nzx, nz2, nx2, nzx2, n2, pad1;
sf_complex c;
float *rr; /* I/O arrays*/
sf_complex *ww, *cwave, *cwavem;
sf_complex **wave, *curr;
float *rcurr;
sf_file Fw,Fr,Fo; /* I/O files */
sf_axis at,az,ax; /* cube axes */
sf_complex **lt, **rt;
sf_file left, right;
sf_init(argc,argv);
if(!sf_getbool("verb",&verb)) verb=false; /* verbosity */
/* setup I/O files */
Fw = sf_input ("in" );
Fo = sf_output("out");
Fr = sf_input ("ref");
if (SF_COMPLEX != sf_gettype(Fw)) sf_error("Need complex input");
if (SF_FLOAT != sf_gettype(Fr)) sf_error("Need float ref");
sf_settype(Fo,SF_FLOAT);
/* Read/Write axes */
at = sf_iaxa(Fw,1); nt = sf_n(at);
az = sf_iaxa(Fr,1); nz = sf_n(az);
ax = sf_iaxa(Fr,2); nx = sf_n(ax);
sf_oaxa(Fo,az,1);
sf_oaxa(Fo,ax,2);
sf_oaxa(Fo,at,3);
if (!sf_getint("pad1",&pad1)) pad1=1; /* padding factor on the first axis */
nk = cfft2_init(pad1,nz,nx,&nz2,&nx2);
nzx = nz*nx;
nzx2 = nz2*nx2;
/* propagator matrices */
left = sf_input("left");
right = sf_input("right");
if (!sf_histint(left,"n1",&n2) || n2 != nzx) sf_error("Need n1=%d in left",nzx);
if (!sf_histint(left,"n2",&m2)) sf_error("Need n2= in left");
if (!sf_histint(right,"n1",&n2) || n2 != m2) sf_error("Need n1=%d in right",m2);
if (!sf_histint(right,"n2",&n2) || n2 != nk) sf_error("Need n2=%d in right",nk);
// if (!sf_histint(Fw,"n1",&nxx)) sf_error("No n1= in input");
lt = sf_complexalloc2(nzx,m2);
rt = sf_complexalloc2(m2,nk);
sf_complexread(lt[0],nzx*m2,left);
sf_complexread(rt[0],m2*nk,right);
// sf_fileclose(left);
// sf_fileclose(right);
/* read wavelet & reflectivity */
ww=sf_complexalloc(nt);
sf_complexread(ww,nt ,Fw);
rr=sf_floatalloc(nzx);
sf_floatread(rr,nzx,Fr);
curr = sf_complexalloc(nzx2);
rcurr = sf_floatalloc(nzx2);
cwave = sf_complexalloc(nk);
cwavem = sf_complexalloc(nk);
wave = sf_complexalloc2(nzx2,m2);
for (iz=0; iz < nzx2; iz++) {
curr[iz] = sf_cmplx(0.,0.);
rcurr[iz]= 0.;
}
/* MAIN LOOP */
for (it=0; it<nt; it++) {
if(verb) sf_warning("it=%d;",it);
/* matrix multiplication */
cfft2(curr,cwave);
for (im = 0; im < m2; im++) {
for (ik = 0; ik < nk; ik++) {
#ifdef SF_HAS_COMPLEX_H
cwavem[ik] = cwave[ik]*rt[ik][im];
//.........这里部分代码省略.........
开发者ID:1014511134，项目名称:src，代码行数:101，代码来源:Mcfftwave2d.c
示例14: main
//.........这里部分代码省略.........
sf_histfloat(Fd_v,"d1",&dt);
sf_histint(Fd_v,"n2",&gpl_v);
} else Fd_v = NULL;
src = -1; n_srcs = -1;
spx = NULL; spz = NULL;
f0 = NULL; t0 = NULL; A = NULL;
} else {
Fd = NULL;
if (!sf_getint("nt",&nt)) sf_error("Need nt!");
if (!sf_getfloat("dt",&dt)) sf_error("Need dt!");
if (!sf_getint("gpl",&gpl)) gpl = -1; /* geophone length */
if (!sf_getint("gpl_v",&gpl_v)) gpl_v = -1; /* geophone height */
if (!sf_getint("src",&src)) src=0; /* source type */
if (!sf_getint("n_srcs",&n_srcs)) n_srcs=1; /* source type */
spx = sf_intalloc(n_srcs);
spz = sf_intalloc(n_srcs);
f0 = sf_floatalloc(n_srcs);
t0 = sf_floatalloc(n_srcs);
A = sf_floatalloc(n_srcs);
if (!sf_getints("spx",spx,n_srcs)) sf_error("Need spx!"); /* shot position x */
if (!sf_getints("spz",spz,n_srcs)) sf_error("Need spz!"); /* shot position z */
if (!sf_getfloats("f0",f0,n_srcs)) sf_error("Need f0! (e.g. 30Hz)"); /* wavelet peak freq */
if (!sf_getfloats("t0",t0,n_srcs)) sf_error("Need t0! (e.g. 0.04s)"); /* wavelet time lag */
if (!sf_getfloats("A",A,n_srcs)) sf_error("Need A! (e.g. 1)"); /* wavelet amplitude */
}
if (!sf_getint("gpx",&gpx)) gpx = -1; /* geophone position x */
if (!sf_getint("gpz",&gpz)) gpz = -1; /* geophone position z */
if (!sf_getint("gpx_v",&gpx_v)) gpx_v = -1; /* geophone position x */
if (!sf_getint("gpz_v",&gpz_v)) gpz_v = -1; /* geophone position z */
if (SF_FLOAT != sf_gettype(Fi)) sf_error("Need float input");
/* Read/Write axes */
az = sf_iaxa(Fi,1); nz = sf_n(az); dz = sf_d(az);
ax = sf_iaxa(Fi,2); nx = sf_n(ax); dx = sf_d(ax);
nz1 = nz-nbt-nbb;
nx1 = nx-nbl-nbr;
if (gpx==-1) gpx = nbl;
if (gpz==-1) gpz = nbt;
if (gpl==-1) gpl = nx1;
if (gpx_v==-1) gpx_v = nbl;
if (gpz_v==-1) gpz_v = nbt;
if (gpl_v==-1) gpl_v = nz1;
ntsnap=0;
if (snap)
for (it=0;it<nt;it++)
if (it%snap==0) ntsnap++;
if (mig) { /*output final wavefield*/
sf_setn(az,nz1);
sf_setn(ax,nx1);
sf_oaxa(Fo,az,1);
sf_oaxa(Fo,ax,2);
sf_settype(Fo,SF_FLOAT);
} else { /*output data*/
sf_setn(ax,gpl);
/*output horizontal data is mandatory*/
sf_putint(Fo,"n1",nt);
sf_putfloat(Fo,"d1",dt);
sf_putfloat(Fo,"o1",0.);
sf_putstring(Fo,"label1","Time");
sf_putstring(Fo,"unit1","s");
sf_oaxa(Fo,ax,2);
sf_settype(Fo,SF_FLOAT);
/*output vertical data is optional*/
if (NULL!=sf_getstring("dat_v")) {
开发者ID:filippo82，项目名称:src，代码行数:67，代码来源:Mpsp.c
示例15: main
int main (int argc, char *argv[])
{
int adj; /* forward or adjoint */
int eic; /* EIC or CIC */
bool verb; /* verbosity */
float eps; /* dip filter constant */
int nrmax; /* number of reference velocities */
float dtmax; /* time error */
int pmx,pmy; /* padding in the k domain */
int tmx,tmy; /* boundary taper size */
int nhx, nhy, nhz, nht, nc;
int nhx2,nhy2,nhz2,nht2;
float dht, oht;
sf_axis amx,amy,az;
sf_axis alx,aly;
sf_axis aw,ae,ac,aa;
sf_axis ahx,ahy,ahz,aht;
/* I/O files */
sf_file Bws=NULL; /* background wavefield file Bws */
sf_file Bwr=NULL; /* background wavefield file Bwr */
sf_file Bs=NULL; /* background slowness file Bs */
sf_file Ps=NULL; /* slowness perturbation file Ps */
sf_file Pi=NULL; /* image perturbation file Pi */
sf_file Fc=NULL; /* CIP coordinates */
sf_file Pws=NULL; /* perturbed wavefield file Pws */
sf_file Pwr=NULL; /* perturbed wavefield file Pwr */
sf_file Pti=NULL;
int ompnth=1;
wexcub3d cub; /* wavefield hypercube */
wexcip3d cip; /* CIP gathers */
wextap3d tap; /* tapering */
wexssr3d ssr; /* SSR operator */
wexlsr3d lsr; /* LSR operator */
wexslo3d slo; /* slowness */
wexmvaop3d mva;
float dsmax;
/*------------------------------------------------------------*/
sf_init(argc,argv);
/* OMP parameters */
#ifdef _OPENMP
ompnth=omp_init();
#endif
if (!sf_getbool( "verb",&verb )) verb = true; /* verbosity flag */
if (!sf_getint( "adj",&adj )) sf_error("Specify adjoint!"); /* y=ADJ Back-projection; n=FWD Forward Scattering */
if (!sf_getint( "feic",&eic )) sf_error("Specify EIC!"); /* extended I.C. flag */
if (!sf_getfloat( "eps",&eps )) eps = 0.01; /* stability parameter */
if (!sf_getint( "nrmax",&nrmax)) nrmax = 1; /* max number of refs */
if (!sf_getfloat("dtmax",&dtmax)) dtmax = 0.004; /* max time error */
if (!sf_getint( "pmx",&pmx )) pmx = 0; /* padding on x */
if (!sf_getint( "pmy",&pmy )) pmy = 0; /* padding on y */
if (!sf_getint( "tmx",&tmx )) tmx = 0; /* taper on x */
if (!sf_getint( "tmy",&tmy )) tmy = 0; /* taper on y */
ae = sf_maxa(1,0,1);
nhx=nhy=nhz=nht=nc=nhx2=nhy2=nhz2=nht2=0;
oht = dht = 0.0;
/*------------------------------------------------------------*/
/* slowness */
Bs = sf_input("slo");
alx = sf_iaxa(Bs,1); sf_setlabel(alx,"lx");
aly = sf_iaxa(Bs,2); sf_setlabel(aly,"ly");
az = sf_iaxa(Bs,3); sf_setlabel(az, "z");
/*------------------------------------------------------------*/
/* input file */
if(adj)
Pi = sf_input("in");
else
Ps = sf_input("in");
/*------------------------------------------------------------*/
/* wavefield */
Bws = sf_input("swfl");
Bwr = sf_input("rwfl");
amx = sf_iaxa(Bws,1); sf_
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