def test_transformlock_transforms_scale_02():
'''Locks work within groups.'''
t = scale_locked_rectangle_pair()
g = Group([Group([t])])
transforms.scale(g, 2)
assert_scaling_preserves_diff(g)
assert_scaling_changes_coords(g)
def scale_example():
s1 = shapes.star_outline(100, 100, 4)
transforms.offset(s1, (300, 0))
transforms.rotate(s1, -math.pi / 4)
s2 = shapes.star_outline(100, 100, 6)
transforms.offset(s2, (300, 0))
transforms.rotate(s2, -math.pi / 2)
s3 = shapes.star_outline(100, 100, 9)
transforms.offset(s3, (300, 0))
transforms.rotate(s3, -math.pi * 3 / 4)
tl = TransformLock([s1, s2], ["scale"])
start = Group([tl, s3])
mid = copy.deepcopy(start)
end = copy.deepcopy(start)
formatters.Pen(3)(start)
formatters.Pen(2)(mid)
formatters.Pen(1)(end)
transforms.scale(mid, 2)
transforms.scale(end, 3)
o = shapes.circle(100)
return Group([start, mid, end, o])
def test_transformlock_transforms_scale_02():
'''Locks work within groups.'''
t = scale_locked_rectangle_pair()
g = Group([Group([t])])
transforms.scale(g, 2)
assert_scaling_preserves_diff(g)
assert_scaling_changes_coords(g)
def assert_scaling_affects_rotation_locked_shapes(shape):
points_before = CoordinateArray(shape.points).difference
minmax_before = shape.minmax_coordinates
transforms.scale(shape, 2)
points_after = CoordinateArray(shape.points).difference
minmax_after = shape.minmax_coordinates
assert points_before != points_after
assert CoordinateArray(minmax_before) * 2 == CoordinateArray(minmax_after)
def assert_scaling_affects_rotation_locked_shapes(shape):
points_before = CoordinateArray(shape.points).difference
minmax_before = shape.minmax_coordinates
transforms.scale(shape, 2)
points_after = CoordinateArray(shape.points).difference
minmax_after = shape.minmax_coordinates
assert points_before != points_after
assert CoordinateArray(minmax_before) * 2 == CoordinateArray(minmax_after)
