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Fix PD multiple components bug #2

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Fix PD multiple components bug #2

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15 changes: 12 additions & 3 deletions khoca.py
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Original file line number Diff line number Diff line change
Expand Up @@ -46,10 +46,19 @@
def pd_to_mypd(pd):
result = list()
for i in pd:
if (i[3] == ((i[1] + 1) % (2 * len(pd)))):
result.append([2,i[0] - 1,i[1] - 1,i[2] - 1,i[3] - 1])
# If they are consecutive, we orient them ascending.
if abs(i[3] - i[1]) == 1:
if i[3] == i[1] + 1:
result.append([2,i[0] - 1,i[1] - 1,i[2] - 1,i[3] - 1])
else:
result.append([3,i[1] - 1,i[2] - 1,i[3] - 1,i[0] - 1])
# Now we have to assume that they form the looping end of a component in a link diagram.
# Which means they should be oriented descending.
else:
result.append([3,i[1] - 1,i[2] - 1,i[3] - 1,i[0] - 1])
if i[3] < i[1]:
result.append([2,i[0] - 1,i[1] - 1,i[2] - 1,i[3] - 1])
else:
result.append([3,i[1] - 1,i[2] - 1,i[3] - 1,i[0] - 1])
return result

def generate_binary_tree(length, s = 0):
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