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_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_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_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_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_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_joint():
p = Pen()
p.stroke_mode(1.0)
p.move_to((-6, 0))
p.turn_to(0)
p.line_forward(6)
p.turn_right(60)
p.line_forward(6)
assert_path_data(
p, 2,
(
'M-6.00,-0.50 L-6.00,0.50 L-0.29,0.50 L2.57,5.45 '
'L3.43,4.95 L0.29,-0.50 L-6.00,-0.50 z'
),
)
def test_joint():
p = Pen()
p.stroke_mode(1.0)
p.move_to((-6, 0))
p.turn_to(0)
p.line_forward(6)
p.turn_right(60)
p.line_forward(6)
assert_path_data(
p, 2,
(
'M-6.00,-0.50 L-6.00,0.50 L-0.29,0.50 L2.57,5.45 '
'L3.43,4.95 L0.29,-0.50 L-6.00,-0.50 z'
),
)
def test_turn_back_no_joint():
# Make a line turn back on itself, and it doesn't join.
p = Pen()
p.stroke_mode(1.0)
p.move_to((0, 0))
p.turn_to(0)
p.line_forward(10)
p.turn_right(180)
p.line_forward(5)
line1, line2 = p.last_path().segments
assert line1.end_joint_illegal
assert line2.start_joint_illegal
assert_path_data(p, 1,
('M0.0,-0.5 L0.0,0.5 L10.0,0.5 L10.0,-0.5 '
'L5.0,-0.5 L5.0,0.5 L10.0,0.5 L10.0,-0.5 L0.0,-0.5 z'))
def test_log():
p = Pen()
p.stroke_mode(1.0)
p.move_to(Point(-6, 0))
p.turn_to(0)
p.line_forward(6)
p.turn_right(60)
p.line_forward(6, end_slant=0)
assert_equal(
p.log(),
[
'stroke_mode(1.0)',
'move_to((-6, 0))', # Points are converted to tuples.
'turn_to(0)',
'line_forward(6)',
'turn_right(60)',
'line_forward(6, end_slant=0)',
]
)
def test_log():
p = Pen()
p.stroke_mode(1.0)
p.move_to(Point(-6, 0))
p.turn_to(0)
p.line_forward(6)
p.turn_right(60)
p.line_forward(6, end_slant=0)
assert_equal(
p.log(),
[
'stroke_mode(1.0)',
'move_to((-6, 0))', # Points are converted to tuples.
'turn_to(0)',
'line_forward(6)',
'turn_right(60)',
'line_forward(6, end_slant=0)',
]
)
def test_color_joint():
p = Pen()
p.stroke_mode(1.0, 'red')
p.move_to((-6, 0))
p.turn_to(0)
p.line_forward(6)
p.stroke_mode(1.0, 'green')
p.turn_right(60)
p.line_forward(6)
assert_path_data(
p, 2,
[
'M-6.00,-0.50 L-6.00,0.50 L-0.29,0.50 L0.29,-0.50 L-6.00,-0.50 z',
'M0.29,-0.50 L-0.29,0.50 L2.57,5.45 L3.43,4.95 L0.29,-0.50 z',
]
)
def test_color_joint():
p = Pen()
p.stroke_mode(1.0, 'red')
p.move_to((-6, 0))
p.turn_to(0)
p.line_forward(6)
p.stroke_mode(1.0, 'green')
p.turn_right(60)
p.line_forward(6)
assert_path_data(
p, 2,
[
'M-6.00,-0.50 L-6.00,0.50 L-0.29,0.50 L0.29,-0.50 L-6.00,-0.50 z',
'M0.29,-0.50 L-0.29,0.50 L2.57,5.45 L3.43,4.95 L0.29,-0.50 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_turn_back_no_joint():
# Make a line turn back on itself, and it doesn't join.
p = Pen()
p.stroke_mode(1.0)
p.move_to((0, 0))
p.turn_to(0)
p.line_forward(10)
p.turn_right(180)
p.line_forward(5)
line1, line2 = p.last_path().segments
assert line1.end_joint_illegal
assert line2.start_joint_illegal
assert_path_data(
p, 1,
(
'M0.0,-0.5 L0.0,0.5 L10.0,0.5 L10.0,-0.5 '
'L5.0,-0.5 L5.0,0.5 L10.0,0.5 L10.0,-0.5 L0.0,-0.5 z'
)
)
def test_close_loop_joint_error():
p = Pen()
p.stroke_mode(1.0)
p.move_to((0, 0))
p.turn_to(0)
p.line_forward(10)
p.turn_right(90)
p.line_forward(10)
p.turn_right(180)
p.arc_left(90, 10)
arc = p.last_segment()
assert arc.start_joint_illegal
assert arc.end_joint_illegal
assert_path_data(
p, 2,
('M4.47,0.50 L9.50,0.50 L9.50,5.53 A 10.50,10.50 0 0 0 4.47,0.50 z '
'M0.00,-0.50 L0.00,0.50 A 9.50,9.50 0 0 1 9.50,10.00 '
'L10.50,10.00 L10.50,-0.50 L0.00,-0.50 z'))
def test_close_loop_joint_error():
p = Pen()
p.stroke_mode(1.0)
p.move_to((0, 0))
p.turn_to(0)
p.line_forward(10)
p.turn_right(90)
p.line_forward(10)
p.turn_right(180)
p.arc_left(90, 10)
arc = p.last_segment()
assert arc.start_joint_illegal
assert arc.end_joint_illegal
assert_path_data(
p, 2,
(
'M4.47,0.50 L9.50,0.50 L9.50,5.53 A 10.50,10.50 0 0 0 4.47,0.50 z '
'M0.00,-0.50 L0.00,0.50 A 9.50,9.50 0 0 1 9.50,10.00 '
'L10.50,10.00 L10.50,-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_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_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'
)
)
