Synopsis
		sfpad < in.rsf > out.rsf beg#=0 end#=0 n#=

n#out is equivalent to n#, both of them overwrite end#.

Other parameters from the command line are passed to the output (similar to sfput).

Parameters
		int beg#=0 the number of zeros to add before the beginning of #-th axis   int end#=0 the number of zeros to add after the end of #-th axis   int n#= the output length of #-th axis - padding at the end

Used In
		BEI          dwnc/sigmoid ft1/autocor ft1/brad   CUP          rna2d/real rna2d/shot rna2d/simple rna3d/real   CWP          geo2006TimeShiftImagingCondition/flat geo2006TimeShiftImagingCondition/zicig geo2007StereographicImagingCondition/sigsbee2 geo2008InterferometricImagingCondition/circle geo2008InterferometricImagingCondition/sigs2 geo2008IsotropicAngleDomainElasticRTM/marm2allA geo2008IsotropicAngleDomainElasticRTM/marm2oneA geo2008NumericWEMVAoperators/flatWEMVA geo2008NumericWEMVAoperators/saltWEMVA geo2009TTIModeSeparation/fold geo2009TTIModeSeparation/marmousi2 geo2009TTIModeSeparation/tti3 geo2009VTIModeSeparation/separate2 geo2009VTIModeSeparation/separate3 geo2009VTIModeSeparation/separate5 geo2009VTIModeSeparation/sigsbee geo2011WideAzimuthAngleDecomposition/flatEICangle geo2011WideAzimuthAngleDecomposition/seam357 jse2006RWEImagingOverturningReflections/sigsbee pept2011MicroearthquakeMonitoring/saf1 pept2011MicroearthquakeMonitoring/saf2 pept2011MicroearthquakeMonitoring/saf3   DATA          cant12/lpf cant12/stk nankai/data nankai/shots   EEG          marchenko/example-cluster marchenko/example   GALLERY          gradient/oway overthrust/kirch   GEE          ajt/conv iin/miss1figs lmn/sep73 lsq/antoine lsq/lomask mda/mad mda/misif noiz/antoine pch/tvdecon prc/seabeam   GEO384H          hw5/seabeam   GEO384S          hw2/migration hw3/dmo hw4/viking hw5/pradon hw6/rtm   GEO384W          hw3/synth hw4/sigsbee hw5/hyper hw5/hyper2 hw5/lsmig hw6/hyper   GEOSTATS          spatial_stats/correlogram spatial_stats/covariance spatial_stats/gr_variogram spatial_stats/variogram   GPGN658          fdmod/exercise rtmig/exercise   HANSUNG          cgg/syn   JLU          apefsnsep/dune fspfint/cmp fspfint/curve fspfint/noise_curve fspfint/noise_qdome fspfint/qdome fspfint/sean gvdseisint/bei spefdecon/simple txsopf/curvedmodel txsopf/data2 txsopf/model txyapf/curve txyapf/real3d txyapf/sigmoid vdseislet/demultiple vdseislet/haskell   MILANO          taupvel/cmp   RSF          rsf/rsftour school/complex school/modeling school/sigsbee school/single school2016/synth su/rsflab8 tutorial2017/radon tutorial2017/synth tutorials/cs tutorials/hilbert tutorials/interp tutorials/lineaments tutorials/wavelet tutorials/yilmaz1   SEP          angle/agmig bspl/chirp fmeiko/tri forwd/chirp helft/mult helft/spike oc2/cup oc2/elfshot passive/synth pwd/dune pwd/hector pwd/lomo stack/miginv stack/velinv vc2/beivc vc2/elfvc vc2/sigvc vc2/spec vc2/vcmod velspec/impls velspec/sigvc   SWAG          tau/iso tau/lens   TCCS          acrossfault/clyde acrossfault/synth aii/heidrun anisodiff/pcable anisodiff/simple anisodiff/simple3d apwd/trace asa/sigsep asa/tracesep attr/vecta butterfly/synth2D-1-timer butterfly/synth2D-4 cs/sean cs/synth dbortho/hyper dealiase/field dealiase/linear dealiase/synth dealiase/synth30Hz dealiase2/bei dealiase2/hyper dealiase2/hypern deblend/fairfield-initmfnew deblend/linear deblend/synthcomplex deblend/synthhyper diffr/chan3d diffr/fault diffr/gom dipseis/field dipseis/hyper dlchan/label dlchan/testing dlchan/thin dsd/field1 dsd/field2 dsd/real dsrtomo/marm dtwaniso/dtw-example dtwaniso/synthetic-gather emdpf/dipfilter enhemd/postack enhemd/prestack enhemd/sigmoid eseis/field flat/comaz flat/flat flat/flatelf fwiseislet/blend fwiseislet/encoding-spar fwiseislet/encoding fwiseislet/noise-spar fwiseislet/noise fwiseislet/timedomain fwiseislet/wavelet halfthr/linear lowrank/fio lpf/lpf lpf/plut lpf/ray lpf/simon ltft/groll ltft/timefreq ltft/vecta merge/apache merge/pcable merge/pcable2 nmodeblend/bei nmodeblend/synth oc3/bei oc3/fault oc3/french oc3/frenchint opwd/pick ortho/orthorna ovc/psovc ovc/toy phase/nonstat phase/signal pi/bei pi/simple-model probdif/noisy-synthetic probdif/synthetic probdif/toy pwshape/parihaka pwshape/qdome pwshape/qdome3 reversible/delta scan3/realdata seislet/plane shape/beivc simistack/bei sparse/sparse-experim-shaping sparse/vg stackadcig/flat strat/sigmoid1 strat/spec-decom strat/three-d svscan/beicmps t2dweak/alaska t2dweak/field time2depth/masha2 time2depth2/beinew timefreq/chev timelapse/timelapse uncert/beivc varipick/horizon varipick/newviking vc3/fracs vc3/threedim vscan/stack vscan/weight welllogs/logs welllogs/synthetic-example wetm/beivel wetm/nankaizone wetm/synthetic4   TRIP          hug/marm1s_deep hug/marm1s_shallow test/flat   UH          avostack/stack   UWA          geo2013ElasticModellingGPU/bp2d geo2013ElasticModellingGPU/homo3d geo2013ElasticModellingGPU/hti3d geo2013ElasticModellingGPU/test2d geo2013ElasticModellingGPU/test3d   XJTU          mcaseislet/interp mcaseislet/sep2 test/dlct test/interpseislet test/myradon2 test/sigsbee   ZJU          diffrlrra/fault diffrlrra/synth optnoise/postack optnoise/prestack sosvmf/jy