Synopsis
		sfpcrsurv3 < data.rsf > survey.rsf sxsy=sxsy.rsf gxgy=gxgy.rsf verb=n tri=n esmax=0.2 ehmax=0.1

Parameters
		float ehmax=0.1 Maximum edge length in the receiver triangulation   float esmax=0.2 Maximum edge length in the shot triangulation   string gxgy= File with receiver coordinates (auxiliary input file name)   string sxsy= File with shot coordinates (auxiliary input file name)   bool tri=n [y/n] triangulation flag   bool verb=n [y/n] verbosity flag