coordinate mouse
&setvar cov = [getcover * -all]
edit %cov%
drawenv arc node errors label ids
editfeature arc
weedtolerance 10
arcsnap on 40
nodesnap closest 40
duplicatearcs no
intersectarcs all /* make intersections where arcs cross
nodecolor dangle red
nodecolor pseudo green
setdrawsymbol 1 yellow
draw
&return