based on buff1_poi
$REG kprob=0,xjfact=0.0,mode =-1,fixeps=3,icylin=0,nbsrt=1,nbslo=1,CONV=1.000000,DX=0.005, NPOINT=8 $
$PO X=0.000000, Y=0.000000 $
$PO X=0.200000, Y=0.000000 $
$PO X=0.500000, Y=0.000000 $
$PO X=1.000000, Y=0.000000 $
$PO X=1.000000, Y=0.250000 $
$PO X=0.200000, Y=0.250000 $
$PO X=0.000000, Y=0.250000 $
$PO X=0.000000, Y=0.000000 $
$REG MAT=2, CUR=0.000000,  $
$PO X=0.000000, Y=0.000000 $
$PO X=0.200000, Y=0.000000 $
$PO X=0.200000, Y=0.2500000 $
$PO X=0.00000, Y=0.2500000 $
$PO X=0.00000, Y=0.000000 $
$REG MAT=1, voltage = 1000.0,ibound=-1  $
$PO X=0.200000, Y=0.000000 $
$PO X=0.500000, Y=0.000000 $
$PO X=0.000000, Y=0.150000, X0=0.350000, Y0=0.000000, NT=2, R=0.150000 $
$PO X=-0.150000, Y=0.000000, X0=0.350000, Y0=0.000000, NT=2, R=0.150000 $
$REG MAT=1, voltage =000.0, ibound=-1  $
$PO X=1.000000, Y=0.250000 $
$PO X=0.200000, Y=0.250000 $
$PO X=0.000000, Y=0.250000 $
$PO X=0.000000, Y=0.000000 $
$REG MAT=1, voltage = 1000.0,ibound=-1  $
$PO X=0.500000, Y=0.000000 $
$PO X=1.000000, Y=0.000000 $