"xpart @#out = xpart @#e",
"xpart @#d = xpart @#ck = xpart @#w",
fi
- "ypart @#d = ypart @#out = ypart (@#sw * .25 + @#nw * .75)",
+ "ypart @#out = ypart midpoint(@#n, @#s)",
+ "ypart @#d = ypart (@#sw * .25 + @#nw * .75)",
"ypart @#ck = ypart (@#sw * .75 + @#nw * .25)";
StandardTies;