DATAdir = /net/koko/book/kana_book/291/data

$R/l7d_real_2dmig_3950_krc_fme.v: 
	< ${DATAdir}/l7d.real.2dmig.3950.krc.fme.HH \
	Grey pclip=98 ${ratio} title='2-D Kirchhoff migration' \
	label1='depth (m)' label2='location (m)' >$n out=$@