def test_line_line_half_illegal_joint():
# The outside edge meets, but the inside is too short to meet.
p = Pen()
p.stroke_mode(1.0)
p.move_to((0, 0))
p.turn_to(0)
p.line_forward(2)
p.turn_left(165)
p.line_forward(2)
assert_path_data(
p, 2,
(
'M0.00,-0.50 L0.00,0.50 L5.80,0.50 L0.20,-1.00 '
'L-0.06,-0.03 L1.87,0.48 L2.00,-0.50 L0.00,-0.50 z'
)
)
p = Pen()
p.stroke_mode(1.0)
p.move_to((0, 0))
p.turn_to(0)
p.line_forward(2)
p.turn_right(165)
p.line_forward(2)
assert_path_data(
p, 2,
(
'M0.00,-0.50 L0.00,0.50 L2.00,0.50 L1.87,-0.48 '
'L-0.06,0.03 L0.20,1.00 L5.80,-0.50 L0.00,-0.50 z'
)
)
def test_outliner_mode():
# We can set up a pattern in one mode,
p = Pen()
p.set_mode(StrokeOutlineMode(sqrt3, 0.2 * sqrt3, 'blue', 'black'))
p.move_to((0, 0))
p.turn_to(0)
p.line_forward(5, end_slant=60)
# Then continue it in another mode without caring what the first mode was.
old_mode = p.mode
p.set_mode(p.mode.outliner_mode())
p.turn_to(60)
p.move_forward(1.0)
p.turn_left(60)
p.line_forward(2.0)
p.turn_right(120)
p.line_forward(2.0)
p.turn_right(120)
p.line_forward(2.0)
p.turn_to(60)
p.move_forward(3.0)
p.turn_to(120)
p.set_mode(old_mode)
p.line_forward(5, start_slant=60)
assert_svg_file(
p, 3,
'test_outliner_mode.svg'
)
def test_outliner_mode():
# We can set up a pattern in one mode,
p = Pen()
p.set_mode(StrokeOutlineMode(sqrt3, 0.2 * sqrt3, 'blue', 'black'))
p.move_to((0, 0))
p.turn_to(0)
p.line_forward(5, end_slant=60)
# Then continue it in another mode without caring what the first mode was.
old_mode = p.mode
p.set_mode(p.mode.outliner_mode())
p.turn_to(60)
p.move_forward(1.0)
p.turn_left(60)
p.line_forward(2.0)
p.turn_right(120)
p.line_forward(2.0)
p.turn_right(120)
p.line_forward(2.0)
p.turn_to(60)
p.move_forward(3.0)
p.turn_to(120)
p.set_mode(old_mode)
p.line_forward(5, start_slant=60)
assert_svg_file(
p, 3,
'test_outliner_mode.svg'
)
def test_arc_angle_error():
# Endpoints with certain angles do not go all the way across the
# stroke, and are disallowed.
p = Pen()
p.stroke_mode(1.0)
p.arc_left(90, 10, start_slant=0)
seg = p.last_segment()
assert seg.start_joint_illegal
assert not seg.end_joint_illegal
p = Pen()
p.stroke_mode(1.0)
p.arc_left(90, 10, end_slant=90)
seg = p.last_segment()
assert not seg.start_joint_illegal
assert seg.end_joint_illegal
p = Pen()
p.stroke_mode(1.0)
p.move_to((0, 0))
p.turn_to(0)
p.arc_left(90, radius=5, start_slant=25)
seg = p.last_segment()
assert seg.start_joint_illegal
assert not seg.end_joint_illegal
# A combination of angles can also create a degenerate arc.
p = Pen()
p.stroke_mode(1.0)
p.turn_toward((1, 0))
p.turn_left(1)
p.arc_to((1, 0), start_slant=40, end_slant=-40)
seg = p.last_segment()
assert seg.start_joint_illegal
assert seg.end_joint_illegal
def test_line_line_half_illegal_joint():
# The outside edge meets, but the inside is too short to meet.
p = Pen()
p.stroke_mode(1.0)
p.move_to((0, 0))
p.turn_to(0)
p.line_forward(2)
p.turn_left(165)
p.line_forward(2)
assert_path_data(p, 2,
('M0.00,-0.50 L0.00,0.50 L5.80,0.50 L0.20,-1.00 '
'L-0.06,-0.03 L1.87,0.48 L2.00,-0.50 L0.00,-0.50 z'))
p = Pen()
p.stroke_mode(1.0)
p.move_to((0, 0))
p.turn_to(0)
p.line_forward(2)
p.turn_right(165)
p.line_forward(2)
assert_path_data(p, 2,
('M0.00,-0.50 L0.00,0.50 L2.00,0.50 L1.87,-0.48 '
'L-0.06,0.03 L0.20,1.00 L5.80,-0.50 L0.00,-0.50 z'))
def test_offwidth_arc_joins():
# Join arcs and lines of different widths.
p = Pen()
p.move_to((0, 0))
p.turn_to(0)
p.stroke_mode(0.8)
p.line_forward(5)
p.turn_left(45)
p.stroke_mode(3.0)
p.arc_left(90, 5)
p.turn_to(-180)
p.line_forward(5)
p.turn_left(45)
p.stroke_mode(0.8)
p.arc_left(45, 5)
p.turn_right(90)
p.stroke_mode(3.0)
p.arc_right(90, 4)
assert_svg_file(
p, 3,
'test_offwidth_arc_joins.svg'
)
def test_arc_angle_error():
# Endpoints with certain angles do not go all the way across the
# stroke, and are disallowed.
p = Pen()
p.stroke_mode(1.0)
p.arc_left(90, 10, start_slant=0)
seg = p.last_segment()
assert seg.start_joint_illegal
assert not seg.end_joint_illegal
p = Pen()
p.stroke_mode(1.0)
p.arc_left(90, 10, end_slant=90)
seg = p.last_segment()
assert not seg.start_joint_illegal
assert seg.end_joint_illegal
p = Pen()
p.stroke_mode(1.0)
p.move_to((0, 0))
p.turn_to(0)
p.arc_left(90, radius=5, start_slant=25)
seg = p.last_segment()
assert seg.start_joint_illegal
assert not seg.end_joint_illegal
# A combination of angles can also create a degenerate arc.
p = Pen()
p.stroke_mode(1.0)
p.turn_toward((1, 0))
p.turn_left(1)
p.arc_to((1, 0), start_slant=40, end_slant=-40)
seg = p.last_segment()
assert seg.start_joint_illegal
assert seg.end_joint_illegal
def test_offwidth_arc_joins():
# Join arcs and lines of different widths.
p = Pen()
p.move_to((0, 0))
p.turn_to(0)
p.stroke_mode(0.8)
p.line_forward(5)
p.turn_left(45)
p.stroke_mode(3.0)
p.arc_left(90, 5)
p.turn_to(-180)
p.line_forward(5)
p.turn_left(45)
p.stroke_mode(0.8)
p.arc_left(45, 5)
p.turn_right(90)
p.stroke_mode(3.0)
p.arc_right(90, 4)
assert_svg_file(
p, 3,
'test_offwidth_arc_joins.svg'
)
def test_start_slant_legal_joint():
# Create a joint that is only legal because of the start slant.
p = Pen()
p.outline_mode(1.0, 0.1)
p.move_to((0, 0))
p.turn_to(0)
p.line_forward(0.8, start_slant=-45)
p.turn_left(90)
p.outline_mode(2.0, 0.1)
p.line_forward(5)
def test_start_slant_legal_joint():
# Create a joint that is only legal because of the start slant.
p = Pen()
p.outline_mode(1.0, 0.1)
p.move_to((0, 0))
p.turn_to(0)
p.line_forward(0.8, start_slant=-45)
p.turn_left(90)
p.outline_mode(2.0, 0.1)
p.line_forward(5)
def test_long_line_thick():
p = Pen()
p.stroke_mode(2.0)
p.move_to((0, 0))
p.turn_to(0)
for _ in range(2):
p.line_forward(5)
p.turn_right(90)
p.line_forward(5)
p.turn_left(90)
assert_path_data(
p, 0,
'M0,-1 L0,1 L4,1 L4,6 L9,6 L9,10 L11,10 L11,4 L6,4 L6,-1 L0,-1 z'
)
def test_long_line_thick():
p = Pen()
p.stroke_mode(2.0)
p.move_to((0, 0))
p.turn_to(0)
for _ in range(2):
p.line_forward(5)
p.turn_right(90)
p.line_forward(5)
p.turn_left(90)
assert_path_data(
p, 0,
'M0,-1 L0,1 L4,1 L4,6 L9,6 L9,10 L11,10 L11,4 L6,4 L6,-1 L0,-1 z'
)
def test_offwidth_joint():
p = Pen()
p.stroke_mode(1.0)
p.turn_to(0)
p.move_forward(-3)
p.line_forward(3)
p.stroke_mode(0.5)
p.turn_left(90)
p.line_forward(3)
assert_path_data(
p, 2,
(
'M-3.00,-0.50 L-3.00,0.50 L0.25,0.50 L0.25,-3.00 '
'L-0.25,-3.00 L-0.25,-0.50 L-3.00,-0.50 z'
),
)
def test_offwidth_joint():
p = Pen()
p.stroke_mode(1.0)
p.turn_to(0)
p.move_forward(-3)
p.line_forward(3)
p.stroke_mode(0.5)
p.turn_left(90)
p.line_forward(3)
assert_path_data(
p, 2,
(
'M-3.00,-0.50 L-3.00,0.50 L0.25,0.50 L0.25,-3.00 '
'L-0.25,-3.00 L-0.25,-0.50 L-3.00,-0.50 z'
),
)
def test_arc_line_joint():
p = Pen()
p.stroke_mode(1.0)
p.move_to((0, 0))
p.turn_to(0)
p.line_forward(3)
p.turn_left(90)
p.arc_left(180, 3)
assert_path_data(
p, 3,
(
'M0.000,-0.500 L0.000,0.500 L3.464,0.500 '
'A 3.500,3.500 0 1 0 -3.500,0.000 L-2.500,0.000 '
'A 2.500,2.500 0 0 1 2.449,-0.500 L0.000,-0.500 z'
),
)
def test_arc_line_joint():
p = Pen()
p.stroke_mode(1.0)
p.move_to((0, 0))
p.turn_to(0)
p.line_forward(3)
p.turn_left(90)
p.arc_left(180, 3)
assert_path_data(
p, 3,
(
'M0.000,-0.500 L0.000,0.500 L3.464,0.500 '
'A 3.500,3.500 0 1 0 -3.500,0.000 L-2.500,0.000 '
'A 2.500,2.500 0 0 1 2.449,-0.500 L0.000,-0.500 z'
),
)
def test_various_joins():
p = Pen()
p.stroke_mode(0.5)
p.move_to((-2, 0))
p.turn_to(0)
p.line_forward(1)
p.turn_left(90)
p.line_forward(1)
p.turn_right(90)
p.arc_right(90, 1)
p.arc_left(90, 1)
p.turn_left(90)
p.line_forward(1)
p.paper.override_bounds(-3, -3, 3, 3)
assert_svg_file(
p, 2,
'test_various_joins.svg',
)
def test_various_joins():
p = Pen()
p.stroke_mode(0.5)
p.move_to((-2, 0))
p.turn_to(0)
p.line_forward(1)
p.turn_left(90)
p.line_forward(1)
p.turn_right(90)
p.arc_right(90, 1)
p.arc_left(90, 1)
p.turn_left(90)
p.line_forward(1)
p.paper.override_bounds(-3, -3, 3, 3)
assert_svg_file(
p, 2,
'test_various_joins.svg',
)
def test_arc_start_slant_bug():
# Some arcs are not reporting their start and end slants correctly.
# Set up positions on a circle at angles -120 and 30
p = Pen()
p.fill_mode()
p.move_to((0, 0))
p.turn_to(30)
p.move_forward(3)
p1 = p.position
p.turn_left(90)
h1 = p.heading
p.move_to((0, 0))
p.turn_to(-120)
p.move_forward(3)
p2 = p.position
# Create an arc using arc_left.
p = Pen()
p.fill_mode()
p.move_to(p1)
p.turn_to(h1)
p.arc_left(210, 3)
arc = p.last_segment()
assert_almost_equal(arc.start_heading, 120)
assert_almost_equal(arc.end_heading, 330)
# Create the same arc using arc_to.
p = Pen()
p.fill_mode()
p.move_to(p1)
p.turn_to(h1)
p.arc_to(p2)
arc = p.last_segment()
assert_almost_equal(arc.start_heading.theta, 120)
assert_almost_equal(arc.end_heading.theta, 330)
def test_joint_loop_color():
p = Pen()
p.move_to((0, 0))
p.turn_to(0)
# Draw a square with one side a different color. It joins to the
# beginning correctly.
p.stroke_mode(2.0, color='black')
p.line_forward(5)
p.turn_left(90)
p.line_forward(5)
p.turn_left(90)
p.line_forward(5)
p.turn_left(90)
p.stroke_mode(2.0, color='red')
p.line_forward(5)
assert_equal(len(p.paper.paths), 1)
assert_path_data(
p, 0,
[
'M1,-1 L-1,1 L6,1 L6,-6 L-1,-6 L1,-4 L4,-4 L4,-1 L1,-1 z',
'M1,-4 L-1,-6 L-1,1 L1,-1 L1,-4 z',
]
)
def test_joint_loop_color():
p = Pen()
p.move_to((0, 0))
p.turn_to(0)
# Draw a square with one side a different color. It joins to the
# beginning correctly.
p.stroke_mode(2.0, color='black')
p.line_forward(5)
p.turn_left(90)
p.line_forward(5)
p.turn_left(90)
p.line_forward(5)
p.turn_left(90)
p.stroke_mode(2.0, color='red')
p.line_forward(5)
assert_equal(len(p.paper.paths), 1)
assert_path_data(
p, 0,
[
'M1,-1 L-1,1 L6,1 L6,-6 L-1,-6 L1,-4 L4,-4 L4,-1 L1,-1 z',
'M1,-4 L-1,-6 L-1,1 L1,-1 L1,-4 z',
]
)
def test_arc_start_slant_bug():
# Some arcs are not reporting their start and end slants correctly.
# Set up positions on a circle at angles -120 and 30
p = Pen()
p.fill_mode()
p.move_to((0, 0))
p.turn_to(30)
p.move_forward(3)
p1 = p.position
p.turn_left(90)
h1 = p.heading
p.move_to((0, 0))
p.turn_to(-120)
p.move_forward(3)
p2 = p.position
# Create an arc using arc_left.
p = Pen()
p.fill_mode()
p.move_to(p1)
p.turn_to(h1)
p.arc_left(210, 3)
arc = p.last_segment()
assert_almost_equal(arc.start_heading, 120)
assert_almost_equal(arc.end_heading, 330)
# Create the same arc using arc_to.
p = Pen()
p.fill_mode()
p.move_to(p1)
p.turn_to(h1)
p.arc_to(p2)
arc = p.last_segment()
assert_almost_equal(arc.start_heading.theta, 120)
assert_almost_equal(arc.end_heading.theta, 330)
def test_mode():
# Fill mode square.
p = Pen()
p.fill_mode()
p.move_to((0, 0))
p.turn_to(0)
p.line_forward(5)
p.turn_left(90)
p.line_forward(5)
p.turn_left(90)
p.line_forward(5)
p.turn_left(90)
p.line_forward(5)
assert_path_data(
p, 0,
'M0,0 L5,0 L5,-5 L0,-5 L0,0 z',
)
def test_mode():
# Fill mode square.
p = Pen()
p.fill_mode()
p.move_to((0, 0))
p.turn_to(0)
p.line_forward(5)
p.turn_left(90)
p.line_forward(5)
p.turn_left(90)
p.line_forward(5)
p.turn_left(90)
p.line_forward(5)
assert_path_data(
p, 0,
'M0,0 L5,0 L5,-5 L0,-5 L0,0 z',
)
def test_joint_loop():
p = Pen()
p.stroke_mode(2.0)
p.move_to((0, 0))
p.turn_to(0)
# Draw a square.
p.line_forward(5)
p.turn_left(90)
p.line_forward(5)
p.turn_left(90)
p.line_forward(5)
p.turn_left(90)
p.line_forward(5)
assert_path_data(
p, 0,
(
'M-1,1 L6,1 L6,-6 L-1,-6 L-1,1 z '
'M1,-1 L1,-4 L4,-4 L4,-1 L1,-1 z'
)
)
def test_joint_loop():
p = Pen()
p.stroke_mode(2.0)
p.move_to((0, 0))
p.turn_to(0)
# Draw a square.
p.line_forward(5)
p.turn_left(90)
p.line_forward(5)
p.turn_left(90)
p.line_forward(5)
p.turn_left(90)
p.line_forward(5)
assert_path_data(
p, 0,
(
'M-1,1 L6,1 L6,-6 L-1,-6 L-1,1 z '
'M1,-1 L1,-4 L4,-4 L4,-1 L1,-1 z'
)
)
def test_too_sharp_joint():
# Joint is considered too sharp, so the joint is not made.
p = Pen()
p.stroke_mode(1.0)
p.move_to((0, 0))
p.turn_to(0)
p.line_forward(10)
p.turn_left(175)
p.line_forward(10)
line1, line2 = p.last_path().segments
assert line1.end_joint_illegal
assert line2.start_joint_illegal
assert_path_data(
p, 2,
(
'M0.00,-0.50 L0.00,0.50 L10.00,0.50 L10.04,-0.50 L0.08,-1.37 '
'L-0.01,-0.37 L9.96,0.50 L10.00,-0.50 L0.00,-0.50 z'
)
)
p = Pen()
p.stroke_mode(1.0)
p.move_to((0, 0))
p.turn_to(0)
p.line_forward(10)
p.turn_right(175)
p.line_forward(10)
line1, line2 = p.last_path().segments
assert line1.end_joint_illegal
assert line2.start_joint_illegal
assert_path_data(
p, 2,
(
'M0.00,-0.50 L0.00,0.50 L10.00,0.50 L9.96,-0.50 L-0.01,0.37 '
'L0.08,1.37 L10.04,0.50 L10.00,-0.50 L0.00,-0.50 z'
)
)
# Joint is considered too sharp, so the outside is not drawn, but the
# inside joint works.
p = Pen()
p.stroke_mode(1.0)
p.move_to((0, 0))
p.turn_to(0)
p.line_forward(20)
p.turn_left(175)
p.line_forward(20)
line1, line2 = p.last_path().segments
assert line1.end_joint_illegal
assert line2.start_joint_illegal
assert_path_data(
p, 2,
(
'M0.00,-0.50 L0.00,0.50 L20.00,0.50 L20.04,-0.50 '
'L0.12,-2.24 L0.03,-1.25 L8.55,-0.50 L0.00,-0.50 z'
)
)
p = Pen()
p.stroke_mode(1.0)
p.move_to((0, 0))
p.turn_to(0)
p.line_forward(20)
p.turn_right(175)
p.line_forward(20)
line1, line2 = p.last_path().segments
assert line1.end_joint_illegal
assert line2.start_joint_illegal
assert_path_data(
p, 2,
(
'M0.00,-0.50 L0.00,0.50 L8.55,0.50 L0.03,1.25 '
'L0.12,2.24 L20.04,0.50 L20.00,-0.50 L0.00,-0.50 z'
)
)
def test_too_sharp_joint():
# Joint is considered too sharp, so the joint is not made.
p = Pen()
p.stroke_mode(1.0)
p.move_to((0, 0))
p.turn_to(0)
p.line_forward(10)
p.turn_left(175)
p.line_forward(10)
line1, line2 = p.last_path().segments
assert line1.end_joint_illegal
assert line2.start_joint_illegal
assert_path_data(
p, 2, ('M0.00,-0.50 L0.00,0.50 L10.00,0.50 L10.04,-0.50 L0.08,-1.37 '
'L-0.01,-0.37 L9.96,0.50 L10.00,-0.50 L0.00,-0.50 z'))
p = Pen()
p.stroke_mode(1.0)
p.move_to((0, 0))
p.turn_to(0)
p.line_forward(10)
p.turn_right(175)
p.line_forward(10)
line1, line2 = p.last_path().segments
assert line1.end_joint_illegal
assert line2.start_joint_illegal
assert_path_data(
p, 2, ('M0.00,-0.50 L0.00,0.50 L10.00,0.50 L9.96,-0.50 L-0.01,0.37 '
'L0.08,1.37 L10.04,0.50 L10.00,-0.50 L0.00,-0.50 z'))
# Joint is considered too sharp, so the outside is not drawn, but the
# inside joint works.
p = Pen()
p.stroke_mode(1.0)
p.move_to((0, 0))
p.turn_to(0)
p.line_forward(20)
p.turn_left(175)
p.line_forward(20)
line1, line2 = p.last_path().segments
assert line1.end_joint_illegal
assert line2.start_joint_illegal
assert_path_data(p, 2,
('M0.00,-0.50 L0.00,0.50 L20.00,0.50 L20.04,-0.50 '
'L0.12,-2.24 L0.03,-1.25 L8.55,-0.50 L0.00,-0.50 z'))
p = Pen()
p.stroke_mode(1.0)
p.move_to((0, 0))
p.turn_to(0)
p.line_forward(20)
p.turn_right(175)
p.line_forward(20)
line1, line2 = p.last_path().segments
assert line1.end_joint_illegal
assert line2.start_joint_illegal
assert_path_data(p, 2,
('M0.00,-0.50 L0.00,0.50 L8.55,0.50 L0.03,1.25 '
'L0.12,2.24 L20.04,0.50 L20.00,-0.50 L0.00,-0.50 z'))
def test_arc_arc_joint():
top = (0, 5)
left = (-2, 0)
right = (2, 0)
# Convex-convex.
p = Pen()
p.stroke_mode(1.0)
p.move_to(left)
p.turn_toward(top)
p.turn_left(5)
p.arc_to(top, start_slant=0)
p.turn_toward(right)
p.turn_left(5)
p.arc_to(right, end_slant=0)
assert_path_data(
p, 3,
(
'M-2.522,0.000 L-1.477,0.000 '
'A 30.394,30.394 0 0 1 0.000,-3.853 '
'A 30.394,30.394 0 0 1 1.477,0.000 '
'L2.522,0.000 '
'A 31.394,31.394 0 0 0 0.000,-6.076 '
'A 31.394,31.394 0 0 0 -2.522,0.000 z'
)
)
# Concave-concave.
p = Pen()
p.stroke_mode(1.0)
p.move_to(left)
p.turn_toward(top)
p.turn_right(5)
p.arc_to(top, start_slant=0)
p.turn_toward(right)
p.turn_right(5)
p.arc_to(right, end_slant=0)
assert_path_data(
p, 3,
(
'M-2.561,0.000 L-1.441,0.000 '
'A 31.394,31.394 0 0 0 0.000,-3.400 '
'A 31.394,31.394 0 0 0 1.441,0.000 '
'L2.561,0.000 '
'A 30.394,30.394 0 0 1 0.000,-6.923 '
'A 30.394,30.394 0 0 1 -2.561,0.000 z'
)
)
# Convex-concave.
p = Pen()
p.stroke_mode(1.0)
p.move_to(left)
p.turn_toward(top)
p.turn_left(5)
p.arc_to(top, start_slant=0)
p.turn_toward(right)
p.turn_right(5)
p.arc_to(right, end_slant=0)
assert_path_data(
p, 3,
(
'M-2.522,0.000 L-1.477,0.000 '
'A 30.394,30.394 0 0 1 -0.090,-3.656 '
'A 31.394,31.394 0 0 0 1.441,0.000 '
'L2.561,0.000 '
'A 30.394,30.394 0 0 1 0.144,-6.339 '
'A 31.394,31.394 0 0 0 -2.522,0.000 z'
)
)
# Concave-convex.
p = Pen()
p.stroke_mode(1.0)
p.move_to(left)
p.turn_toward(top)
p.turn_right(5)
p.arc_to(top, start_slant=0)
p.turn_toward(right)
p.turn_left(5)
p.arc_to(right, end_slant=0)
assert_path_data(
p, 3,
(
'M-2.561,0.000 L-1.441,0.000 '
'A 31.394,31.394 0 0 0 0.090,-3.656 '
'A 30.394,30.394 0 0 1 1.477,0.000 '
'L2.522,0.000 '
'A 31.394,31.394 0 0 0 -0.144,-6.339 '
'A 30.394,30.394 0 0 1 -2.561,0.000 z'
)
)
def test_arc_arc_joint():
top = (0, 5)
left = (-2, 0)
right = (2, 0)
# Convex-convex.
p = Pen()
p.stroke_mode(1.0)
p.move_to(left)
p.turn_toward(top)
p.turn_left(5)
p.arc_to(top, start_slant=0)
p.turn_toward(right)
p.turn_left(5)
p.arc_to(right, end_slant=0)
assert_path_data(
p, 3,
(
'M-2.522,0.000 L-1.477,0.000 '
'A 30.394,30.394 0 0 1 0.000,-3.853 '
'A 30.394,30.394 0 0 1 1.477,0.000 '
'L2.522,0.000 '
'A 31.394,31.394 0 0 0 0.000,-6.076 '
'A 31.394,31.394 0 0 0 -2.522,0.000 z'
)
)
# Concave-concave.
p = Pen()
p.stroke_mode(1.0)
p.move_to(left)
p.turn_toward(top)
p.turn_right(5)
p.arc_to(top, start_slant=0)
p.turn_toward(right)
p.turn_right(5)
p.arc_to(right, end_slant=0)
assert_path_data(
p, 3,
(
'M-2.561,0.000 L-1.441,0.000 '
'A 31.394,31.394 0 0 0 0.000,-3.400 '
'A 31.394,31.394 0 0 0 1.441,0.000 '
'L2.561,0.000 '
'A 30.394,30.394 0 0 1 0.000,-6.923 '
'A 30.394,30.394 0 0 1 -2.561,0.000 z'
)
)
# Convex-concave.
p = Pen()
p.stroke_mode(1.0)
p.move_to(left)
p.turn_toward(top)
p.turn_left(5)
p.arc_to(top, start_slant=0)
p.turn_toward(right)
p.turn_right(5)
p.arc_to(right, end_slant=0)
assert_path_data(
p, 3,
(
'M-2.522,0.000 L-1.477,0.000 '
'A 30.394,30.394 0 0 1 -0.090,-3.656 '
'A 31.394,31.394 0 0 0 1.441,0.000 '
'L2.561,0.000 '
'A 30.394,30.394 0 0 1 0.144,-6.339 '
'A 31.394,31.394 0 0 0 -2.522,0.000 z'
)
)
# Concave-convex.
p = Pen()
p.stroke_mode(1.0)
p.move_to(left)
p.turn_toward(top)
p.turn_right(5)
p.arc_to(top, start_slant=0)
p.turn_toward(right)
p.turn_left(5)
p.arc_to(right, end_slant=0)
assert_path_data(
p, 3,
(
'M-2.561,0.000 L-1.441,0.000 '
'A 31.394,31.394 0 0 0 0.090,-3.656 '
'A 30.394,30.394 0 0 1 1.477,0.000 '
'L2.522,0.000 '
'A 31.394,31.394 0 0 0 -0.144,-6.339 '
'A 30.394,30.394 0 0 1 -2.561,0.000 z'
)
)
