def draw(ctx, pixel_width, pixel_height, frame_no, frame_count):
setup(ctx, pixel_width, pixel_height, width=5, background=Color(0.8))
Text(ctx).of("Left", (0.5, 0.5)).font("Times").size(0.2).align_left().align_baseline().fill(Color('blue'))
Text(ctx).of("Aligned", (0.5, 0.7)).font("Times").size(0.2).align_left().align_baseline().fill(Color('red'))
Text(ctx).of("Text", (0.5, 0.9)).font("Times").size(0.2).align_left().align_baseline().fill(Color('blue'))
Text(ctx).of("Centre", (2.5, 0.5)).font("Times", weight=FONT_WEIGHT_BOLD).size(0.2)\
.align_center().align_baseline().fill(Color('blue'))
Text(ctx).of("Aligned", (2.5, 0.7)).font("Times", weight=FONT_WEIGHT_BOLD).size(0.2)\
.align_center().align_baseline().fill(Color('red'))
Text(ctx).of("Text", (2.5, 0.9)).font("Times", weight=FONT_WEIGHT_BOLD).size(0.2)\
.align_center().align_baseline().fill(Color('blue'))
Text(ctx).of("Right", (4.5, 0.5)).font("Times", slant=FONT_SLANT_ITALIC).size(0.2)\
.align_right().align_baseline().fill(Color('blue'))
Text(ctx).of("Aligned", (4.5, 0.7)).font("Times", slant=FONT_SLANT_ITALIC).size(0.2)\
.align_right().align_baseline().fill(Color('red'))
Text(ctx).of("Text", (4.5, 0.9)).font("Times", slant=FONT_SLANT_ITALIC).size(0.2)\
.align_right().align_baseline().fill(Color('blue'))
Circle(ctx).of_center_radius((1.9, 2), 0.02).fill(Color(0, 0, 1))
Text(ctx).of("gTop", (2, 2)).font("Times").size(0.2).align_left().align_top().fill(Color('black'))
Circle(ctx).of_center_radius((1.9, 2.5), 0.02).fill(Color(0, 0, 1))
Text(ctx).of("gMid", (2, 2.5)).font("Times").size(0.2).align_left().align_middle().fill(Color('black'))
Circle(ctx).of_center_radius((1.9, 3), 0.02).fill(Color(0, 0, 1))
Text(ctx).of("gBase", (2, 3)).font("Times").size(0.2).align_left().align_baseline().fill(Color('black'))
Circle(ctx).of_center_radius((1.9, 3.5), 0.02).fill(Color(0, 0, 1))
Text(ctx).of("gBottom", (2, 3.5)).font("Times").size(0.2).align_left().align_bottom().fill(Color('black'))
def draw(ctx, pixel_width, pixel_height, frame_no, frame_count):
setup(ctx, pixel_width, pixel_height, width=5, background=Color(0.4))
color = Color(1, 0.5, 0)
Rectangle(ctx).of_corner_size((1, 1.5), 2.5, 2).fill(color)
def draw2(ctx, pixel_width, pixel_height, frame_no, frame_count):
setup(ctx, pixel_width, pixel_height, background=Color(0.8))
black = Color(0)
Line(ctx).of_start_end((50, 50), (450, 50)).stroke(black, 20, cap=SQUARE)
Line(ctx).of_start_end((50, 100), (450, 100)).stroke(black, 20, cap=BUTT)
Line(ctx).of_start_end((50, 150), (450, 150)).stroke(black, 20, cap=ROUND)
Line(ctx).of_start_end((50, 250), (450, 250)).stroke(black,
20,
cap=SQUARE,
dash=[30])
Line(ctx).of_start_end((50, 300), (450, 300)).stroke(black,
20,
cap=BUTT,
dash=[30])
Line(ctx).of_start_end((50, 350), (450, 350)).stroke(black,
20,
cap=ROUND,
dash=[30])
Line(ctx).of_start_end((50, 450), (450, 450)).stroke(black,
20,
cap=BUTT,
dash=[30, 40])
Line(ctx).of_start_end((50, 500), (450, 500)).stroke(black,
20,
cap=BUTT,
dash=[30, 10, 20, 10])
def draw(ctx, width, height, frame_no, frame_count):
cs = DarkColorScheme()
setup(ctx, width, height, background=cs.BACKGROUND)
colors = [
cs.RED,
cs.GREEN,
cs.BLUE,
cs.WHITE,
cs.GREY,
cs.BLACK,
cs.YELLOW,
cs.CYAN,
cs.MAGENTA,
cs.ORANGE,
]
Transform(ctx).translate(50, 50)
for i, color in enumerate(colors):
Square(ctx).of_corner_size((i * 50, 0), 50).fill(color.dark3)
Square(ctx).of_corner_size((i * 50, 50), 50).fill(color.dark2)
Square(ctx).of_corner_size((i * 50, 100), 50).fill(color.dark1)
Square(ctx).of_corner_size((i * 50, 150), 50).fill(color)
Square(ctx).of_corner_size((i * 50, 200),
50).fill(color.light1)
Square(ctx).of_corner_size((i * 50, 250),
50).fill(color.light2)
Square(ctx).of_corner_size((i * 50, 300),
50).fill(color.light3)
def draw(ctx, pixel_width, pixel_height, frame_no, frame_count):
setup(ctx, pixel_width, pixel_height, background=Color(1))
Image(ctx).of_file_position('cat.png', (50, 50)).paint()
Image(ctx).of_file_position('cat.png', (300, 50)).scale(0.5).paint()
Image(ctx).of_file_position('cat.png', (50, 300)).scale(1.5).paint()
Image(ctx).of_file_position('formula.png', (50, 600)).paint()
Image(ctx).of_file_position('formula.png', (350, 200)).scale(0.5).paint()
def draw_delta(ctx, pixel_width, pixel_height, frame_no, frame_count):
setup(ctx, pixel_width, pixel_height, background=Color(1))
col = Color("cadetblue")
pos = [10, 10]
w = 100
h = 100
Rectangle(ctx).of_corner_size(pos, w, h).fill(col.with_g_factor(0.8))
pos[0] += w
Rectangle(ctx).of_corner_size(pos, w, h).fill(col)
pos[0] += w
Rectangle(ctx).of_corner_size(pos, w, h).fill(col.with_g_factor(1.2))
pos = [10, 120]
Rectangle(ctx).of_corner_size(pos, w, h).fill(col.with_l_factor(0.6))
pos[0] += w
Rectangle(ctx).of_corner_size(pos, w, h).fill(col)
pos[0] += w
Rectangle(ctx).of_corner_size(pos, w, h).fill(col.with_l_factor(1.4))
pos = [10, 230]
Rectangle(ctx).of_corner_size(pos, w, h).fill(col.with_s_factor(0.6))
pos[0] += w
Rectangle(ctx).of_corner_size(pos, w, h).fill(col)
pos[0] += w
Rectangle(ctx).of_corner_size(pos, w, h).fill(col.with_s_factor(1.4))
def draw(ctx, width, height, frame_no, frame_count):
setup(ctx, width, height, background=Color(1))
colors = [
Color(0.5, 0, 0), # red
Color(0, 0.5, 0), # green
Color(0, 0, 0.5), #blue
Color(0, 0.5, 0.5), # cyan
Color(0.5, 0, 0.5), # magenta
Color(0.5, 0.5, 0), # yellow
Color(1, 1, 1), # white
Color(0.5, 0.5, 0.5), # grey
]
Transform(ctx).translate(50, 50)
for i, color in enumerate(colors):
Square(ctx).of_corner_size((i * 50, 0), 50).fill(color.dark3)
Square(ctx).of_corner_size((i * 50, 50), 50).fill(color.dark2)
Square(ctx).of_corner_size((i * 50, 100), 50).fill(color.dark1)
Square(ctx).of_corner_size((i * 50, 150), 50).fill(color)
Square(ctx).of_corner_size((i * 50, 200),
50).fill(color.light1)
Square(ctx).of_corner_size((i * 50, 250),
50).fill(color.light2)
Square(ctx).of_corner_size((i * 50, 300),
50).fill(color.light3)
def draw2(ctx, pixel_width, pixel_height, frame_no, frame_count):
width = 32
setup(ctx, pixel_width, pixel_height, width=width, startx=-width/2, starty=-width/2, background=Color(1))
a = 14
b = 6
d = 4
angle = 1
Origin = (0, 0)
A = (-a, 0)
B = ((a-b)*math.cos(angle), (a-b)*math.sin(angle))
x = (a - b) * math.cos(angle) + d * math.cos((a - b) / b * angle)
y = (a - b) * math.sin(angle) - d * math.sin((a - b) / b * angle)
D = (x, y)
Polygon(ctx).of_points(create_spiro(a, b, d)).stroke(Color('skyblue'), line_width=0.1)
Polygon(ctx).of_points(create_spiro(a, b, d, 0.01, angle)).open().stroke(Color('red'), line_width=0.1)
Circle(ctx).of_center_radius(Origin, a).stroke(Color('darkgreen'), line_width=0.1)
Circle(ctx).of_center_radius(Origin, 0.3).fill(Color('darkgreen'))
Line(ctx).of_start_end(Origin, A).stroke(Color('darkgreen'), line_width=0.1)
Text(ctx).of('a', (A[0]/2, A[1])).size(1.5).offset(0, -0.5).fill(Color('darkgreen'))
Circle(ctx).of_center_radius(B, b).stroke(Color('blue'), line_width=0.1)
Circle(ctx).of_center_radius(B, 0.3).fill(Color('blue'))
Text(ctx).of('b', (B[0], B[1]+b/2)).size(1.5).offset(0.5, 0).fill(Color('blue'))
Line(ctx).of_start_end(B, (B[0], B[1]+b)).stroke(Color('blue'), line_width=0.1)
Circle(ctx).of_center_radius(D, 0.3).fill(Color('black'))
Line(ctx).of_start_end(B, D).stroke(Color('black'), line_width=0.1)
Text(ctx).of('d', ((B[0]+D[0])/2, (B[1]+D[1])/2)).size(1.5).offset(0.5, 0.5).fill(Color('black'))
def draw(ctx, width, height, frame_no, frame_count):
setup(ctx, width, height, width=5, background=Color(0.8))
Rectangle(ctx).of_corner_size((0.5, 1), 1,
1.2).stroke(Color(0, .5, 0),
0.1,
dash=[0.25])
Rectangle(ctx).of_corner_size((2, 1), 1,
1.2).stroke(Color(0, .5, 0),
0.1,
dash=[0.25],
cap=BUTT)
Rectangle(ctx).of_corner_size((3.5, 1), 1.2,
1).stroke(Color(0, .5, 0),
0.1,
dash=[0.25],
cap=ROUND)
Rectangle(ctx).of_corner_size((0.5, 3), 1,
1.2).stroke(Color(0, .5, 0),
0.1,
join=ROUND)
Rectangle(ctx).of_corner_size((2, 3), 1,
1.2).stroke(Color(0, .5, 0),
0.1,
join=BEVEL)
Rectangle(ctx).of_corner_size((3.5, 3), 1.2,
1).stroke(Color(0, .5, 0),
0.1,
miter_limit=1)
def draw3(ctx, pixel_width, pixel_height, frame_no, frame_count):
width = 32
setup(ctx, pixel_width, pixel_height, width=width, startx=-width/2, starty=-width/2, background=Color(1))
a = 14
b = 6
d = 4
angle = (frame_no/frame_count)*2*math.pi*b/math.gcd(a, b)
print(angle)
Origin = (0, 0)
A = (-a, 0)
B = ((a-b)*math.cos(angle), (a-b)*math.sin(angle))
x = (a - b) * math.cos(angle) + d * math.cos((a - b) / b * angle)
y = (a - b) * math.sin(angle) - d * math.sin((a - b) / b * angle)
D = (x, y)
Polygon(ctx).of_points(create_spiro(a, b, d)).stroke(Color('skyblue'), line_width=0.2)
Polygon(ctx).of_points(create_spiro(a, b, d, 0.01, angle)).open().stroke(Color('red'), line_width=0.2)
Circle(ctx).of_center_radius(Origin, a).stroke(Color('darkgreen'), line_width=0.2)
Circle(ctx).of_center_radius(B, b).stroke(Color('blue'), line_width=0.2)
Circle(ctx).of_center_radius(B, 0.3).fill(Color('blue'))
Circle(ctx).of_center_radius(D, 0.3).fill(Color('black'))
Line(ctx).of_start_end(B, D).stroke(Color('black'), line_width=0.2)
def draw(ctx, width, height, frame_no, frame_count):
setup(ctx, width, height, width=5, background=Color(0.8))
# Get a polygon path object
path1 = Polygon(ctx).of_points([(0, 0), (1, 1), (0.5, 2), (0.5, 1)])\
.path()
# Get a text path object
path2 = Text(ctx).of("Path text", (0, 0)).font("Times").size(0.2)\
.align_left().align_top().path()
# Apply the polygon in various places
with Transform(ctx).translate(0.5, 1):
Path(ctx).of(path1).stroke(Color('darkgreen'), 0.1)
with Transform(ctx).translate(1, 2.5):
Path(ctx).of(path1).fill(Color('blue'))
with Transform(ctx).translate(2.5, 0.5).scale(2, 2):
Path(ctx).of(path1).fill(Color('orange')).stroke(Color('black'), 0.05)
# Apply the text in various places
with Transform(ctx).translate(0, 0):
Path(ctx).of(path2).fill(Color('black'))
with Transform(ctx).translate(2, 3):
Path(ctx).of(path2).stroke(Color('red'), 0.01)
with Transform(ctx).translate(2, 4).scale(2, 2):
Path(ctx).of(path2).fill(Color('yellow')).stroke(Color('black'), 0.01)
def draw4(ctx, pixel_width, pixel_height, frame_no, frame_count):
setup(ctx, pixel_width, pixel_height, background=Color(0.8))
blue = Color('blue')
grey = Color(0.2)
thickness = 2
a0 = (50, 200)
b0 = (100, 200)
c0 = (100, 50)
d0 = (200, 50)
a1 = (200, 50)
b1 = (300, 50)
c1 = (350, 220)
d1 = (450, 200)
points = [a0, (*b0, *c0, *d0), (*b1, *c1, *d1)]
Polygon(ctx).of_points(points).open().stroke(blue, thickness)
show_bezier_points(ctx, (50, 200), (100, 200), (100, 50), (200, 50))
show_bezier_points(ctx, (200, 50), (300, 50), (350, 220), (450, 200))
Text(ctx).of('a0', a0).size(20).align_center().align_middle().offset_towards(b0, -20).fill(grey)
Text(ctx).of('b0', b0).size(20).align_center().align_middle().offset_towards(a0, -20).fill(grey)
Text(ctx).of('c0', c0).size(20).align_center().align_middle().offset_towards(d0, -20).fill(grey)
Text(ctx).of('d0/a1', d0).size(20).align_center().align_middle().offset(0, -20).fill(grey)
Text(ctx).of('b1', b1).size(20).align_center().align_middle().offset_towards(a1, -20).fill(grey)
Text(ctx).of('c1', c1).size(20).align_center().align_middle().offset_towards(d1, -20).fill(grey)
Text(ctx).of('d1', d1).size(20).align_center().align_middle().offset_towards(c1, -20).fill(grey)
def draw3(ctx, pixel_width, pixel_height, frame_no, frame_count):
width = 32
setup(ctx,
pixel_width,
pixel_height,
width=width,
startx=-width / 2,
starty=-width / 2,
background=Color(1))
# x = [i/100 for i in range(1000)]
# y = [-sintri(i) for i in x]
# Polygon(ctx).of_points(zip(x, y)).open().stroke(Color('black'), line_width=0.1)
#
# x = [i/100 for i in range(1000)]
# y = [-costri(i) + 2 for i in x]
# Polygon(ctx).of_points(zip(x, y)).open().stroke(Color('black'), line_width=0.1)
#
# x = [i/100 for i in range(1000)]
# y = [-int(3*i/(2*math.pi)) - 2 for i in x]
# Polygon(ctx).of_points(zip(x, y)).open().stroke(Color('black'), line_width=0.1)
a = 16
b = 10
d = 7
Polygon(ctx).of_points(create_spiro_triangle(a, b, d)).fill(
Color('gold'), fill_rule=EVEN_ODD).stroke(Color('darkblue'),
line_width=0.1)
def draw(ctx, width, height, frame_no, frame_count):
setup(ctx, width, height, width=5, background=Color(0.8))
# The circle function is a convenience function that adds a circle as a new the path.
# You can fill or stroke it as you wish.
circle(ctx, (1, 1), 0.7)
ctx.set_source_rgba(*Color(1, 0, 0))
ctx.fill()
# Circle objects can be filled, stroked, filled and stroked.
Circle(ctx).of_center_radius(
(2.5, 1), 0.7).fill(Color(0, 0, 1)).stroke(Color(0), 0.05)
Circle(ctx).of_center_radius(
(4, 1), 0.7).as_arc(0, 1).stroke(Color(0, 0.5, 0), 0.05)
Circle(ctx).of_center_radius(
(1, 2.5), 0.7).as_sector(1, 3).stroke(Color('orange'), 0.05)
Circle(ctx).of_center_radius(
(2.5, 2.5), 0.7).as_sector(2, 4.5).fill(Color('cadetblue'))
Circle(ctx).of_center_radius((4, 2.5), 0.7).as_sector(2.5, 6).fill(
Color('yellow')).stroke(Color('magenta'), 0.05)
Circle(ctx).of_center_radius(
(1, 4), 0.7).as_segment(1, 3).stroke(Color('orange'), 0.05)
Circle(ctx).of_center_radius(
(2.5, 4), 0.7).as_segment(2, 4.5).fill(Color('cadetblue'))
Circle(ctx).of_center_radius((4, 4), 0.7).as_segment(2.5, 6).fill(
Color('yellow')).stroke(Color('magenta'), 0.05)
def draw(ctx, pixel_width, pixel_height, frame_no, frame_count):
setup(ctx, pixel_width, pixel_height, background=Color(0.8))
red = Color('crimson')
green = Color('darkgreen')
blue = Color('dodgerblue')
RegularPolygon(ctx).of_centre_sides_radius((150, 150), 5, 100)\
.fill(blue)\
.stroke(green, 5)
RegularPolygon(ctx).of_centre_sides_radius((400, 150), 6, 100)\
.fill(blue)\
.stroke(green, 5)
RegularPolygon(ctx).of_centre_sides_radius((650, 150), 6, 100, math.pi/12)\
.fill(blue)\
.stroke(green, 5)
p = RegularPolygon(ctx).of_centre_sides_radius((150, 400), 5, 100)\
.fill(blue)\
.stroke(green, 5)
Circle(ctx).of_center_radius((150, 400), p.inner_radius).stroke(red, 5)
p = RegularPolygon(ctx).of_centre_sides_radius((400, 400), 5, 100)\
.fill(blue)\
.stroke(green, 5)
Circle(ctx).of_center_radius((400, 400), p.outer_radius).stroke(red, 5)
p = RegularPolygon(ctx).of_centre_sides_radius((650, 400), 5, 100)\
.fill(blue)\
.stroke(green, 5)
for v in p.vertices:
Circle(ctx).of_center_radius(v, 10).fill(red)
def draw(ctx, pixel_width, pixel_height, frame_no, frame_count):
setup(ctx, pixel_width, pixel_height, background=Color(0.4))
color = Color(1, 0.5, 0)
Rectangle(ctx).of_corner_size((100, 150), 250, 200).fill(color)
def draw3(ctx, pixel_width, pixel_height, frame_no, frame_count):
setup(ctx, pixel_width, pixel_height, width=10, background=Color(0.8))
a = (1, 2)
b = (7, 2)
c = (3, 8)
d = (9, 8)
e = (5, 2)
f = (5, 8)
Polygon(ctx).of_points([a, b, d, c]).stroke(Color('blue'), line_width=.05)
ParallelMarker(ctx).of_start_end(
a,
b).with_length(.5).with_count(2).with_gap(0.15).stroke(Color('blue'),
line_width=.05)
ParallelMarker(ctx).of_start_end(
c,
d).with_length(.5).with_count(2).with_gap(0.15).stroke(Color('blue'),
line_width=.05)
ParallelMarker(ctx).of_start_end(a,
c).with_length(.5).stroke(Color('blue'),
line_width=.05)
ParallelMarker(ctx).of_start_end(b,
d).with_length(.5).stroke(Color('blue'),
line_width=.05)
Text(ctx).of('a', a).size(1).offset_towards(d, -0.5).fill(Color('red'))
Text(ctx).of('b', b).size(1).offset_towards(c, -0.5).fill(Color('red'))
Text(ctx).of('c', c).size(1).offset_towards(b, -0.9).fill(Color('red'))
Text(ctx).of('d', d).size(1).offset_towards(a, -0.5).fill(Color('red'))
def draw(ctx, pixel_width, pixel_height, frame_no, frame_count):
setup(ctx, pixel_width, pixel_height, background=Color(0.8))
blue = Color('blue')
grey = Color(0.4)
thickness = 2
Circle(ctx).of_center_radius((100, 100), 75).stroke(blue, thickness)
Circle(ctx).of_center_radius((300, 100), 75).stroke(grey,
thickness,
dash=[5])
Circle(ctx).of_center_radius((300, 100),
75).as_arc(0, 1).stroke(blue, thickness)
Circle(ctx).of_center_radius((100, 300), 75).stroke(grey,
thickness,
dash=[5])
Circle(ctx).of_center_radius((100, 300),
75).as_sector(1, 3).stroke(blue, thickness)
Circle(ctx).of_center_radius((300, 300), 75).stroke(grey,
thickness,
dash=[5])
Circle(ctx).of_center_radius((300, 300),
75).as_segment(-1, 1).stroke(blue, thickness)
def draw2(ctx, pixel_width, pixel_height, frame_no, frame_count):
width = 32
setup(ctx,
pixel_width,
pixel_height,
width=width,
startx=-width / 2,
starty=-width / 2,
background=Color(1))
a = 16
b = 13
d = 5
Polygon(ctx).of_points(create_spiro(a, b, d)).stroke(Color('firebrick'),
line_width=0.1)
a = 16
b = 9
d = 8
Polygon(ctx).of_points(create_spiro(a, b, d)).stroke(Color('goldenrod'),
line_width=0.1)
a = 16
b = 11
d = 6
Polygon(ctx).of_points(create_spiro(a, b, d)).stroke(Color('darkgreen'),
line_width=0.1)
def draw(ctx, pixel_width, pixel_height, frame_no, frame_count):
setup(ctx, pixel_width, pixel_height, width=10, background=Color(0.8))
a = (1, 2)
b = (7, 2)
c = (3, 8)
d = (9, 8)
e = (5, 2)
f = (5, 8)
Polygon(ctx).of_points([a, b, d, c]).stroke(Color('blue'), line_width=.05)
Line(ctx).of_start_end(e, f).stroke(Color('blue'), line_width=.05)
AngleMarker(ctx).of_points(
b, a,
c).with_radius(.5).with_count(2).with_gap(0.15).stroke(Color('blue'),
line_width=.05)
AngleMarker(ctx).of_points(a, b, d).with_radius(.5).stroke(Color('blue'),
line_width=.05)
AngleMarker(ctx).of_points(
c, d,
b).with_radius(.5).with_count(2).with_gap(0.15).stroke(Color('blue'),
line_width=.05)
AngleMarker(ctx).of_points(a, c, d).with_radius(.5).stroke(Color('blue'),
line_width=.05)
AngleMarker(ctx).of_points(
e, f, d).with_radius(.5).as_right_angle().stroke(Color('blue'),
line_width=.05)
Text(ctx).of('a', a).size(1).offset_towards(d, -0.5).fill(Color('red'))
Text(ctx).of('b', b).size(1).offset_towards(c, -0.9).fill(Color('red'))
Text(ctx).of('c', c).size(1).offset_towards(b, -0.9).fill(Color('red'))
Text(ctx).of('d', d).size(1).offset_towards(a, -0.5).fill(Color('red'))
Text(ctx).of('e', e).size(1).offset_towards(f, -0.3).fill(Color('red'))
Text(ctx).of('f', f).size(1).offset_towards(e, -0.9).fill(Color('red'))
def draw(ctx, width, height, frame_no, frame_count):
setup(ctx, width, height, width=500, background=Color(0.8))
with Transform(ctx) as transform:
Text(ctx).of('A', (10, 100)).size(80).fill(Color('blue'))
Text(ctx).of('B', (110, 100)).size(80).fill(Color('black'))
with Transform(ctx) as transform:
transform.scale(0.75, 1.5)
Text(ctx).of('B', (110, 100)).size(80).fill(Color('blue', 0.5))
Text(ctx).of('C', (210, 100)).size(80).fill(Color('black'))
Circle(ctx).of_center_radius((250, 80), 5).fill(Color('red'))
with Transform(ctx).scale(0.75, 1.5, (250, 80)):
Text(ctx).of('C', (210, 100)).size(80).fill(Color('blue', 0.5))
Text(ctx).of('D', (110, 200)).size(80).fill(Color('black'))
with Transform(ctx) as transform:
transform.translate(20, 30)
Text(ctx).of('D', (110, 200)).size(80).fill(Color('blue', 0.5))
Text(ctx).of('E', (110, 300)).size(80).fill(Color('black'))
with Transform(ctx) as transform:
transform.rotate(0.1)
Text(ctx).of('E', (110, 300)).size(80).fill(Color('blue', 0.5))
Text(ctx).of('F', (210, 300)).size(80).fill(Color('black'))
Circle(ctx).of_center_radius((250, 80), 5).fill(Color('red'))
with Transform(ctx).rotate(0.1, (210, 300)):
Text(ctx).of('F', (210, 300)).size(80).fill(Color('blue', 0.5))
Text(ctx).of('G', (210, 400)).size(80).fill(Color('black'))
Circle(ctx).of_center_radius((250, 80), 5).fill(Color('red'))
with Transform(ctx).matrix([1, 0.5, 0, 1, 0, 0]):
Text(ctx).of('G', (210, 400)).size(80).fill(Color('blue', 0.5))
def draw4(ctx, pixel_width, pixel_height, frame_no, frame_count):
width = 32
setup(ctx,
pixel_width,
pixel_height,
width=width,
startx=-width / 2,
starty=-width / 2,
background=Color(1))
colors = [
Color('magenta', 0.7),
Color('red', 0.7),
Color('blue', 0.7),
Color('gold', 0.7),
]
for i, color in enumerate(colors):
a = 16
b = 10
d = 7
with Transform(ctx).rotate(i * math.pi / 6):
Polygon(ctx).of_points(create_spiro_triangle(a, b, d)).fill(
color, fill_rule=EVEN_ODD)
def draw(ctx, width, height, frame_no, frame_count):
setup(ctx, width, height, background=Color(1))
cs = ArtisticColorScheme()
colors = [
cs.RED,
cs.BLUE,
cs.GREEN,
cs.YELLOW,
cs.MAGENTA,
cs.STEEL,
cs.CREAM,
cs.LIME,
cs.BLACK,
cs.GREY,
cs.WHITE,
]
Transform(ctx).translate(50, 50)
for i, color in enumerate(colors):
Square(ctx).of_corner_size((i * 50, 0), 50).fill(color.dark3)
Square(ctx).of_corner_size((i * 50, 50), 50).fill(color.dark2)
Square(ctx).of_corner_size((i * 50, 100), 50).fill(color.dark1)
Square(ctx).of_corner_size((i * 50, 150), 50).fill(color)
Square(ctx).of_corner_size((i * 50, 200),
50).fill(color.light1)
Square(ctx).of_corner_size((i * 50, 250),
50).fill(color.light2)
Square(ctx).of_corner_size((i * 50, 300),
50).fill(color.light3)
def draw2(ctx, pixel_width, pixel_height, frame_no, frame_count):
setup(ctx, pixel_width, pixel_height, background=Color(0.8))
show_bezier_labels(ctx, (50, 150), (100, 50), (150, 50), (200, 150))
show_bezier_labels(ctx, (250, 150), (250, 50), (350, 50), (400, 150))
show_bezier_labels(ctx, (50, 350), (100, 250), (150, 450), (200, 350))
show_bezier_labels(ctx, (250, 350), (450, 250), (200, 250), (400, 350))
def draw(ctx, width, height, frame_no, frame_count):
setup(ctx, width, height, background=Color(0.8))
image, size = rasterise_formula(
"formula-test-temp", r"\cosh{x} = \frac{e^{x}+e^{-x}}{2}",
Color("dodgerblue"))
Image(ctx).of_file_position(image, (50, 50)).paint()
Text(ctx).of("Size = " + str(size),
(50, 300)).size(20).fill(Color(0))
def draw(ctx, width, height, frame_no, frame_count):
setup(ctx, width, height, width=5, background=Color(0.8))
# Bezier objects can only be stroked as they do not contain an area.
Bezier(ctx).of_abcd((1, 1.5), (3, 0.5), (2, 2.5), (4, 1.5)).stroke(Color('darkgreen'), 0.1)
# Create a polygon with a bezier side
Polygon(ctx).of_points([(1, 4.5), (1, 2.5), (2, 3, 3, 4, 4, 2.5), (4, 4.5)]).fill(Color('red')).stroke(Color('blue'), 0.05)
def draw(ctx, pixel_width, pixel_height, frame_no, frame_count):
setup(ctx, pixel_width, pixel_width, background=Color(0.8))
black = Color(0)
Rectangle(ctx).of_corner_size((50, 50), 350, 250).add()
Rectangle(ctx).of_corner_size((100, 100), 250, 150).as_sub_path()\
.fill(Color('red'), fill_rule=EVEN_ODD)\
.stroke(Color('blue'), 5)
def draw(ctx, pixel_width, pixel_height, fn, frame_count):
setup(ctx,
pixel_width,
pixel_height,
width=OUTPUTWIDTH,
height=OUTPUTHEIGHT,
background=Color(0.5))
Circle(ctx).of_center_radius(position[fn], 30).fill(Color("red"))
def draw3(ctx, pixel_width, pixel_height, frame_no, frame_count):
setup(ctx, pixel_width, pixel_height, background=Color(0.8))
blue = Color('blue')
red = Color('red')
thickness = 4
points = [(100, 250), (100, 50), (200, 100, 300, 200, 400, 50), (400, 250)]
Polygon(ctx).of_points(points).fill(red).stroke(blue, thickness)
def draw_color_scheme(ctx, pixel_width, pixel_height, frame_no, frame_count):
setup(ctx, pixel_width, pixel_height, background=Color("white"))
# Fill a square with red
Square(ctx).of_corner_size((50, 50), 200).fill(cs.RED)
# Fill a square with a lighter version of RED, stroke with a darker version
Square(ctx).of_corner_size(
(300, 50), 200).fill(cs.RED.light1).stroke(cs.RED.dark1, 10)
