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)
def draw(ctx, width, height, frame_no, frame_count):
setup(ctx, width, height, width=5, background=Color(0.8))
# The square function is a convenience function that adds a square as a new the path.
# You can fill or stroke it as you wish.
square(ctx, (1, 1), 1)
ctx.set_source_rgba(*Color(1, 0, 0))
ctx.fill()
# Square objects can be filled, stroked, filled and stroked.
Square(ctx).of_corner_size((3, 1), 1).fill(Color(0, .5, 0))
Square(ctx).of_corner_size((1, 3), 1).stroke(Color(0, .5, 0), 0.1)
Square(ctx).of_corner_size((3, 3), 1).fill(Color(0, 0, 1)).stroke(Color(0), 0.2)
def draw(ctx, width, height, frame_no, frame_count):
setup(ctx, width, height, background=Color(0.8))
# Create a circular clip region and draw some squares in it
with Transform(ctx):
Circle(ctx).of_center_radius((190, 190), 100).clip()
Square(ctx).of_corner_size((100, 100), 80).fill(Color('red'))
Square(ctx).of_corner_size((100, 200), 80).fill(Color('green'))
Square(ctx).of_corner_size((200, 100), 80).fill(Color('blue'))
Square(ctx).of_corner_size((200, 200), 80).fill(Color('black'))
with Transform(ctx):
Text(ctx).of("ABC", (150, 350)).font("Times").size(150).align_left().align_top().clip()
circles = [(200, 380, 'orange'), (200, 450, 'cyan'), (300, 380, 'green'),
(300, 450, 'purple'), (400, 380, 'yellow'), (400, 450, 'blue')]
for x, y, color in circles:
Circle(ctx).of_center_radius((x, y), 70).fill(Color(color))
def plot_easing_function(ctx, x, y, fn):
tw = Tween(0).ease(-100, 100, fn)
poly = [(i, tw[i]) for i in range(100)]
ctx.save()
ctx.translate(x, y)
Square(ctx).of_corner_size((0, -100), 100).stroke(Color(0.5), 2)
Polygon(ctx).of_points(poly).open().stroke(Color('red'), 2)
ctx.restore()
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, 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 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 draw(ctx, width, height, frame_no, frame_count):
setup(ctx, width, height, width=5, background=Color(0.8))
# Create a circular clip region and draw some squares in it
ctx.save()
Circle(ctx).of_center_radius((1.9, 1.9), 1).clip()
Square(ctx).of_corner_size((1, 1), .8).fill(Color('red'))
Square(ctx).of_corner_size((1, 2), .8).fill(Color('green'))
Square(ctx).of_corner_size((2, 1), .8).fill(Color('blue'))
Square(ctx).of_corner_size((2, 2), .8).fill(Color('black'))
ctx.restore()
ctx.save()
Text(ctx).of("ABC", (1.5, 3.5)).font("Times", weight=FONT_WEIGHT_BOLD).size(1.5).align_left().align_top().clip()
circles = [(2, 3.8, 'orange'), (2, 4.5, 'cyan'), (3, 3.8, 'green'),
(3, 4.5, 'purple'), (4, 3.8, 'yellow'), (4, 4.5, 'blue')]
for x, y, color in circles:
Circle(ctx).of_center_radius((x, y), 0.7).fill(Color(color))
ctx.restore()
def draw(ctx, width, height, frame_no, frame_count):
setup(ctx, width, height, width=10, background=Color(0.8))
gradient = LinearGradient().of_points(
(0, 1), (0, 3)).with_start_end(Color(0), Color('red')).build()
Square(ctx).of_corner_size((1, 1), 2).fill(gradient)
gradient = LinearGradient().of_points(
(3, 1), (6.2, 2.5)).with_start_end(Color(1),
Color('green')).build()
Rectangle(ctx).of_corner_size((4, 1), 2.2, 1.5).fill(gradient)
gradient = LinearGradient().of_points(
(7, 1), (9, 1)).with_start_end(Color('blue'),
Color('yellow')).build()
Circle(ctx).of_center_radius((8, 2), 1.5).fill(gradient)
gradient = LinearGradient().of_points((0, 4), (0, 6)).with_stops(
((0, Color(0)), (0.5, Color('red')), (1.0,
Color('blue')))).build()
Square(ctx).of_corner_size((1, 4), 2).fill(gradient)
gradient = LinearGradient().of_points((4, 4), (6, 6)).with_stops(
((0, Color(0)), (0.5, Color('red')), (0.8, Color('green')),
(1.0, Color('blue')))).build()
Square(ctx).of_corner_size((4, 4), 2).fill(gradient)
gradient = LinearGradient().of_points((7, 4), (7, 6)).with_stops(
((0, Color(0)), (0.5, Color('red')), (0.5, Color('blue')),
(1.0, Color('blue')))).build()
Square(ctx).of_corner_size((7, 4), 2).fill(gradient)
gradient = LinearGradient().of_points((0, 7), (0, 9)).with_stops(
((0, Color(0)), (0.5, Color('red')), (1.0,
Color('blue')))).build()
Square(ctx).of_corner_size((1.1, 7.1), 1.8).stroke(gradient, .2)
gradient = LinearGradient().of_points((4, 7), (6, 9)).with_stops(
((0, Color(0)), (0.5, Color('red')), (0.8, Color('green')),
(1.0, Color('blue')))).build()
Square(ctx).of_corner_size((4.1, 7.1), 1.8).stroke(gradient, .2)
gradient = LinearGradient().of_points((7, 7), (7, 9)).with_stops(
((0, Color(0)), (0.5, Color('red')), (0.5, Color('blue')),
(1.0, Color('blue')))).build()
Square(ctx).of_corner_size((7.1, 7.1), 1.8).stroke(gradient, .2)
def draw(ctx, pixel_width, pixel_height, frame_no, frame_count):
setup(ctx, pixel_width, pixel_height, background=Color(0.8))
red = Color('red')
green = Color('green')
blue = Color('blue')
thickness = 2
Line(ctx).of_start_end((150, 150), (50, 50)).stroke(red, thickness)
Line(ctx).of_start_end((300, 150),
(200, 50)).as_ray().stroke(red, thickness)
Line(ctx).of_start_end((450, 150),
(350, 50)).as_line().stroke(red, thickness)
Triangle(ctx).of_corners((50, 200), (150, 200),
(125, 300)).stroke(green, thickness)
Square(ctx).of_corner_size((200, 200), 100).stroke(green, thickness)
Rectangle(ctx).of_corner_size((350, 200), 100, 75).stroke(green, thickness)
Polygon(ctx).of_points([(50, 350), (250, 400), (250, 500),
(50, 375)]).stroke(blue, thickness)
Polygon(ctx).of_points([(300, 350), (500, 400), (500, 500),
(300, 375)]).open().stroke(blue, thickness)