+# calculation from lattic eunits to angstroms
+
+[ "$lc" = "sic" ] && lc=4.359
+[ "$lc" = "si" ] && lc=5.429
+[ "$lc" = "c" ] && lc=3.566
+
+offset=`echo 0.125 \* $lc | bc`
+
+x0=`echo $x0 \* $lc + $offset | bc`
+y0=`echo $y0 \* $lc + $offset | bc`
+z0=`echo $z0 \* $lc + $offset | bc`
+x1=`echo $x1 \* $lc + $offset | bc`
+y1=`echo $y1 \* $lc + $offset | bc`
+z1=`echo $z1 \* $lc + $offset | bc`
+
+clx=`echo $clx \* $lc + $offset | bc`
+cly=`echo $cly \* $lc + $offset | bc`
+clz=`echo $clz \* $lc + $offset | bc`
+
+if [ -n "$cx" -a -n "$cy" -a -n "$cz" ]; then
+ cx=`echo $cx \* $lc + $offset | bc`
+ cy=`echo $cy \* $lc + $offset | bc`
+ cz=`echo $cz \* $lc + $offset | bc`