Synopsis
		sfve2d < fsc.rsf > fid.rsf x=fx.rsf z=fy.rsf nt= dt= order=4

Parameters
		float dt=   int nt=   int order=4 interpolation order   file x= auxiliary output file name   file z= auxiliary output file name

Used In
		TCCS          time2depth/masha2 time2depth/msyn2 time2depth2/synth