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 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)