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 rotation_example():
r1 = shapes.rectangle(100, 100)
r2 = shapes.rectangle(200, 200)
transforms.offset(r2, (400, 0))
r3 = shapes.rectangle(300, 300)
transforms.offset(r3, (800, 0))
tl = TransformLock([r1, r2], ["rotate"])
start = Group([tl, r3])
transforms.offset(start, (500, 0))
mid = copy.deepcopy(start)
end = copy.deepcopy(start)
formatters.Pen(3)(start)
formatters.Pen(2)(mid)
formatters.Pen(1)(end)
transforms.rotate(mid, math.pi / 6, (0, 0))
transforms.rotate(end, math.pi / 3, (0, 0))
o = shapes.circle(100)
return Group([start, mid, end, o])