February 1991/Positioning Nodes For General Trees/Table 1

Table 1

Node  Final X-coordinate
     (preliminary x-coordinate
     + modifiers of ancestors)

O     13.5
E     3 + 0 = 3
A     0 + 0 + 0 = 0
D     6 + 0 + 0 = 6
B     0 + 3 + 0 + 0 = 3
C     6 + 3 + 0 + 0 = 9
F     13.5 + 0 = 13.5
N     24 + 0 = 24
G     0 + 21 + 0 = 21
M     6 + 21 + 0 = 27
H     0 + -6 + 21 + 0 = 15
I     6 + -6 + 21 + 0 = 21
J     12 + -6 + 21 + 0 = 27
K     18 + -6 + 21 + 0 = 33
L     24 + -6 + 21 + 0 = 39