def test_item_crossing_border(self, max_depth, coords):
# adding item that cross borders shouldn't trigger nested subdivisions
qt = Node(0, 0, 1024, 1024, max_depth)
assert qt._get_depth() == 0
assert qt._get_number_of_nodes() == 1
rect = Rectangle(*coords)
qt.insert(rect)
assert qt.get_children() == [rect]
assert qt._get_depth() == 1
assert qt._get_number_of_nodes() == 5
def test_item_crossing_border(self, max_depth, coords):
# adding item that cross borders shouldn't trigger nested subdivisions
qt = Node(0, 0, 1024, 1024, max_depth)
assert qt._get_depth() == 0
assert qt._get_number_of_nodes() == 1
rect = Rectangle(*coords)
qt.insert(rect)
assert qt.get_children() == [rect]
assert qt._get_depth() == 1
assert qt._get_number_of_nodes() == 5
def test_insert_small_rect_in_corner(self, max_depth, coords):
# inserting small rectangle in top left corner should make the
# quadtree perform maximum number of subdivisions
qt = Node(0, 0, 1024, 1024, max_depth)
assert qt._get_depth() == 0
assert qt._get_number_of_nodes() == 1
rect = Rectangle(*coords)
qt.insert(rect)
assert qt._get_depth() == max_depth
assert qt._get_number_of_nodes() == 1 + max_depth * 4
qt.remove(rect)
assert qt._get_depth() == 0
assert qt._get_number_of_nodes() == 1
def test_insert_small_rect_in_corner(self, max_depth, coords):
# inserting small rectangle in top left corner should make the
# quadtree perform maximum number of subdivisions
qt = Node(0, 0, 1024, 1024, max_depth)
assert qt._get_depth() == 0
assert qt._get_number_of_nodes() == 1
rect = Rectangle(*coords)
qt.insert(rect)
assert qt._get_depth() == max_depth
assert qt._get_number_of_nodes() == 1 + max_depth * 4
qt.remove(rect)
assert qt._get_depth() == 0
assert qt._get_number_of_nodes() == 1
def test_clear(self):
qt = Node(0, 0, 1000, 1000)
[qt.insert(random_rectangle(qt.bounds)) for _ in range(300)]
assert len(qt.get_children()) == 300
assert qt._get_depth() in [3, 4] # can't know for sure
qt.clear()
assert qt.get_children() == []
assert qt.direct_children == []
def test_clear(self):
qt = Node(0, 0, 1000, 1000)
[qt.insert(random_rectangle(qt.bounds)) for _ in range(300)]
assert len(qt.get_children()) == 300
assert qt._get_depth() in [3, 4] # can't know for sure
qt.clear()
assert qt.get_children() == []
assert qt.direct_children == []
def test_reinsert_into_same_quadrant(self, max_depth):
bounds = (0.001, 0.001, 0.002, 0.002)
qt = Node(0, 0, 1024, 1024, max_depth)
assert qt._get_depth() == 0
assert qt._get_number_of_nodes() == 1
rect = Rectangle(*bounds)
qt.insert(rect)
assert qt._get_depth() == max_depth
assert qt._get_number_of_nodes() == 1 + max_depth * 4
# make sure that top-left quadrant is the only one subdivided
depths = [qt.quadrants[i]._get_depth() for i in range(4)]
assert depths == [max_depth - 1, 0, 0, 0]
# change coords and reinsert into same place
qt.reinsert(rect)
assert qt._get_depth() == max_depth
assert qt._get_number_of_nodes() == 1 + max_depth * 4
depths = [qt.quadrants[i]._get_depth() for i in range(4)]
assert depths == [max_depth - 1, 0, 0, 0]
def test_reinsert_into_same_quadrant(self, max_depth):
bounds = (0.001, 0.001, 0.002, 0.002)
qt = Node(0, 0, 1024, 1024, max_depth)
assert qt._get_depth() == 0
assert qt._get_number_of_nodes() == 1
rect = Rectangle(*bounds)
qt.insert(rect)
assert qt._get_depth() == max_depth
assert qt._get_number_of_nodes() == 1 + max_depth * 4
# make sure that top-left quadrant is the only one subdivided
depths = [qt.quadrants[i]._get_depth() for i in range(4)]
assert depths == [max_depth - 1, 0, 0, 0]
# change coords and reinsert into same place
qt.reinsert(rect)
assert qt._get_depth() == max_depth
assert qt._get_number_of_nodes() == 1 + max_depth * 4
depths = [qt.quadrants[i]._get_depth() for i in range(4)]
assert depths == [max_depth - 1, 0, 0, 0]
def test_reinsert_into_another_quadrant(self, max_depth):
bounds_1 = (0.01, 0.01, 0.02, 0.02)
bounds_2 = (1023.998, 1023.998, 1023.999, 1023.999)
qt = Node(0, 0, 1024, 1024, max_depth)
assert qt._get_depth() == 0
assert qt._get_number_of_nodes() == 1
rect = Rectangle(*bounds_1)
qt.insert(rect)
assert qt._get_depth() == max_depth
assert qt._get_number_of_nodes() == 1 + max_depth * 4
# make sure that top-left quadrant is the only one subdivided
depths = [qt.quadrants[i]._get_depth() for i in range(4)]
assert depths == [max_depth - 1, 0, 0, 0]
# change coords and reinsert
rect.bounds = bounds_2
qt.reinsert(rect)
assert qt._get_depth() == max_depth
assert qt._get_number_of_nodes() == 1 + max_depth * 4
# make sure that bottom-right quadrant is the only one subdivided
depths = [qt.quadrants[i]._get_depth() for i in range(4)]
assert depths == [0, 0, 0, max_depth - 1]
def test_reinsert_into_another_quadrant(self, max_depth):
bounds_1 = (0.01, 0.01, 0.02, 0.02)
bounds_2 = (1023.998, 1023.998, 1023.999, 1023.999)
qt = Node(0, 0, 1024, 1024, max_depth)
assert qt._get_depth() == 0
assert qt._get_number_of_nodes() == 1
rect = Rectangle(*bounds_1)
qt.insert(rect)
assert qt._get_depth() == max_depth
assert qt._get_number_of_nodes() == 1 + max_depth * 4
# make sure that top-left quadrant is the only one subdivided
depths = [qt.quadrants[i]._get_depth() for i in range(4)]
assert depths == [max_depth - 1, 0, 0, 0]
# change coords and reinsert
rect.bounds = bounds_2
qt.reinsert(rect)
assert qt._get_depth() == max_depth
assert qt._get_number_of_nodes() == 1 + max_depth * 4
# make sure that bottom-right quadrant is the only one subdivided
depths = [qt.quadrants[i]._get_depth() for i in range(4)]
assert depths == [0, 0, 0, max_depth - 1]