def test_merge_rings_permutations():
"""
Test all possible permutations of 4 ring segments.
"""
for i in range(16):
# test each segment in both directions
f1 = i & 1 == 0
f2 = i & 2 == 0
f3 = i & 4 == 0
f4 = i & 8 == 0
for i1, i2, i3, i4 in permutations([0, 1, 2, 3]):
ways = [
W(1, {}, [1, 2, 3, 4] if f1 else [4, 3, 2, 1]),
W(2, {}, [4, 5, 6, 7] if f2 else [7, 6, 5, 4]),
W(3, {}, [7, 8, 9, 10] if f3 else [10, 9, 8, 7]),
W(4, {}, [10, 11, 12, 1] if f4 else [1, 12, 11, 10]),
]
ways = [ways[i1], ways[i2], ways[i3], ways[i4]]
rings = [Ring(w) for w in ways]
merged_rings = merge_rings(rings)
eq_(len(merged_rings), 1)
r = merged_rings[0]
eq_(r.is_closed(), True, (ways, r.refs))
eq_(set(r.ways), set(ways))
# check order of refs
prev_x = r.refs[0]
for x in r.refs[1:]:
if not abs(prev_x - x) == 1:
assert (
(prev_x == 1 and x == 12) or
(prev_x == 12 and x == 1)
), 'not in order %r' % r.refs
prev_x = x
def test_merge_rings_permutations():
"""
Test all possible permutations of 4 ring segments.
"""
for i in range(16):
# test each segment in both directions
f1 = i & 1 == 0
f2 = i & 2 == 0
f3 = i & 4 == 0
f4 = i & 8 == 0
for i1, i2, i3, i4 in permutations([0, 1, 2, 3]):
ways = [
W(1, {}, [1, 2, 3, 4] if f1 else [4, 3, 2, 1]),
W(2, {}, [4, 5, 6, 7] if f2 else [7, 6, 5, 4]),
W(3, {}, [7, 8, 9, 10] if f3 else [10, 9, 8, 7]),
W(4, {}, [10, 11, 12, 1] if f4 else [1, 12, 11, 10]),
]
ways = [ways[i1], ways[i2], ways[i3], ways[i4]]
rings = [Ring(w) for w in ways]
merged_rings = merge_rings(rings)
eq_(len(merged_rings), 1)
r = merged_rings[0]
eq_(r.is_closed(), True, (ways, r.refs))
eq_(set(r.ways), set(ways))
# check order of refs
prev_x = r.refs[0]
for x in r.refs[1:]:
if not abs(prev_x - x) == 1:
assert ((prev_x == 1 and x == 12)
or (prev_x == 12
and x == 1)), 'not in order %r' % r.refs
prev_x = x
def test_merge_rings():
w1 = Way(1, {}, [1, 2, 3])
w1.coords = [(0, 0), (10, 0), (10, 10)]
r1 = Ring(w1)
w2 = Way(2, {}, [3, 4, 1])
w2.coords = [(10, 10), (0, 10), (0, 0)]
r2 = Ring(w2)
rings = merge_rings([r1, r2])
eq_(len(rings), 1)
r = rings[0]
eq_(r.is_closed(), True)
def test_merge_rings():
w1 = Way(1, {}, [1, 2, 3])
w1.coords = [(0, 0), (10, 0), (10, 10)]
r1 = Ring(w1)
w2 = Way(2, {}, [3, 4, 1])
w2.coords = [(10, 10), (0, 10), (0, 0)]
r2 = Ring(w2)
rings = merge_rings([r1, r2])
eq_(len(rings), 1)
r = rings[0]
eq_(r.is_closed(), True)
def test_merge_rings_reverse_endpoint():
w1 = Way(1, {'name': 'foo'}, [1, 2, 3, 4])
w1.coords = []
r1 = Ring(w1)
w2 = Way(2, {'building': 'true'}, [6, 5, 4])
w2.coords = []
r2 = Ring(w2)
w3 = Way(3, {}, [1, 7, 6])
w3.coords = []
r3 = Ring(w3)
rings = merge_rings([r1, r2, r3])
eq_(len(rings), 1)
r = rings[0]
eq_(r.tags, {'name': 'foo', 'building': 'true'})
eq_(r.is_closed(), True)
def test_merge_rings_reverse_endpoint():
w1 = Way(1, {'name': 'foo'}, [1, 2, 3, 4])
w1.coords = []
r1 = Ring(w1)
w2 = Way(2, {'building': 'true'}, [6, 5, 4])
w2.coords = []
r2 = Ring(w2)
w3 = Way(3, {}, [1, 7, 6])
w3.coords = []
r3 = Ring(w3)
rings = merge_rings([r1, r2, r3])
eq_(len(rings), 1)
r = rings[0]
eq_(r.tags, {'name': 'foo', 'building': 'true'})
eq_(r.is_closed(), True)