def build_queue(h_lines, v_lines):
h_queue = ProQueue()
for line in h_lines:
assert line[0][1] == line[1][1]
y = line[0][1]
start = line[0][0]
end = line[1][0]
if start < end:
start, end = end, start
# print line, start, end
h_queue.push(QueueNode(start, (y, end)))
h_queue.push(QueueNode(end, (y)))
v_queue = ProQueue()
for line in v_lines:
# print line
assert line[0][0] == line[1][0]
x = line[0][0]
if line[1][1] > line[0][1]:
v_queue.push(QueueNode(x, (line[0][1], line[1][1])))
else:
v_queue.push(QueueNode(x, (line[1][1], line[0][1])))
# print "v_queue", v_queue.get_keys()
return h_queue, v_queue
