d1.gif:
=======
declare -x delta="l0.5"
declare -x dir="c"
declare -x pic="0"
declare -x pre_smooth="1"
declare -x px="znx"
declare -x range="10"
declare -x smooth_flt="b4.flx"
st49 4 1 qst8 pictures/m_var/salz_l.rdh pictures/m_var/salz_r.rdh dr
qsplit dr dx
qhis dx.000 dt

d2.gif:
=======
declare -x delta="l0.5"
declare -x dir="c"
declare -x pic="0"
declare -x pre_smooth="1"
declare -x px="lnx"
declare -x range="6"
declare -x smooth_flt="b4.flx"
st49 5 1 qst8 pictures/256/tree_l.rdh pictures/256/tree_r.rdh dr
qsplit dr dx
qnorm dx.000 tx -4 6
qhis tx ty

d3.gif:
=======
declare -x delta="l0.5"
declare -x dir="q"
declare -x pic="0"
declare -x pre_smooth="0"
declare -x px="znx"
declare -x range="4"
declare -x smooth_flt="b4.flx"
st49 3 1 qcxa pictures/m_var/norwegian_fjord2_l.rdh pictures/m_var/norwegian_fjord2_r.rdh dr
qsplit dr sx
qnorm sx.000 tx 3