up [pdf]
from rsf.proj import *
from bay import Bay
from helderiv import Helderiv

###########################################################################
Bay('bay',f2=500,n2=1600,f1=400,n1=700)

def plot(title):
    return 'grey title="%s" pclip=99.9 gpow=.8 crowd=.85' % title

Plot('bay',plot('Topographic map, Stanford area'))
Plot('slope','bay','igrad | ' + plot('Southward slope'))

Helderiv('hel',eps=0.001,na=16)
Plot('helderiv','bay hel',
     'helicon filt=${SOURCES[1]} | ' + plot('Helix derivative'))

Result('helderiv','bay helderiv slope','OverUnderAniso')

###########################################################################
End()

sfdd
sfwindow
sfreverse
sfcostaper
sfgrey
sfigrad
sfwilson
sfhelicon

data/bay/bay.h