| | \n\n \n \n \n int absoff=0 | \t1 - use absolute value of offset, 0 - use offset =gx-sx \n | \n \n\n \n \n \n float angmax=60. | \tmigration angle aperature from vertical \n | \n \n\n \n \n \n float aperx=0.5*nxt*dxt | \tmigration lateral aperature \n | \n \n\n \n \n \n string csfile= | \tinput file of cosine tables \n | \n \n\n \n \n \n float doff=0.1 | \toffset increment in output \n | \n \n\n \n \n \n float dvz=0 | \treference velocity vertical gradient \n | \n \n\n \n \n \n float dxm=0.5*ds | \tsampling interval of midpoints \n | \n \n\n \n \n \n float dxo=dxt*0.5 | \thorizontal spacing of output trace \n | \n \n\n \n \n \n float dzo=dzt*0.2 | \tvertical spacing of output trace \n | \n \n\n \n \n \n float fmax=0.25/dt | \tfrequency-highcut for input traces \n | \n \n\n \n \n \n float fxo=fxt | \tx-coordinate of first output trace \n | \n \n\n \n \n \n float fzo=fzt | \tz-coordinate of first point in output trace \n | \n \n\n \n \n \n int limoff=0 | \t1 - limit traces used by offset, 0 - use all traces \n | \n \n\n \n \n \n int ls=1 | \tflag for line source \n | \n \n\n \n \n \n int mtr=100 | \tprint verbal information at every mtr traces \n | \n \n\n \n \n \n int noff=1 | \tnumber of offsets in output \n | \n \n\n \n \n \n int npv=0 | \t1 - compute quantities for velocity analysis \n | \n \n\n \n \n \n int ntr=sf_leftsize (infp, 1) | \tmaximum number of input traces to be migrated \n | \n \n\n \n \n \n int nxo=(nxt-1)*2+1 | \tnumber of output traces \n | \n \n\n \n \n \n int nzo=(nzt-1)*5+1 | \tnumber of points in output trace \n | \n \n\n \n \n \n float off0=0. | \tfirst offest in output \n | \n \n\n \n \n \n float offmax=3.0 | \tmaximum absolute offset allowed in migration \n | \n \n\n \n \n \n string outfile1= | \tfile containning additional migration output \n | \n \n\n \n \n \n float rscale=RSCALE_KDMIG | \tscaling for roundoff error suppression \n | \n \n\n \n \n \n string ttfile= | \tinput traveltime tables \n | \n \n\n \n \n \n string tvfile= | \tinput file of traveltime variation tables \n | \n \n\n \n \n \n float v0=1.5 | \treference velocity value at surface \n | \n \n\n \n \n \n bool verb=n [y/n] | \tverbosity flag \n | \n \n |