ctx.save()
ctx.translate(1, 2.5)
Path(ctx).of(path1).fill(Color('blue'))
ctx.restore()
ctx.save()
ctx.translate(2.5, 0.5)
ctx.scale(2, 2)
Path(ctx).of(path1).fill(Color('orange')).stroke(Color('black'), 0.05)
ctx.restore()
# Apply the text in various places
ctx.save()
ctx.translate(0, 0)
Path(ctx).of(path2).fill(Color('black'))
ctx.restore()
ctx.save()
ctx.translate(2, 3)
Path(ctx).of(path2).stroke(Color('red'), 0.01)
ctx.restore()
ctx.save()
ctx.translate(2, 4)
ctx.scale(2, 2)
Path(ctx).of(path2).fill(Color('yellow')).stroke(Color('black'), 0.01)
ctx.restore()
make_image("/tmp/geometry-path.png", draw, 500, 500)
# Author: Martin McBride
# Created: 2022-01-10
# Copyright (C) 2022, Martin McBride
# License: MIT
from generativepy.drawing import make_image, setup
from generativepy.color import Color
from generativepy.geometry import Circle, Square, Text, Transform
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))
make_image("clip-tutorial.png", draw, 500, 500)
def creator(file):
make_image(file, draw, 500, 350, channels=3)
# Same as before, but a hue of 0.33 gives the equivalent green colour
ctx.set_source_rgba(*Color.of_hsl(0.33, 0.5, 0.5))
ctx.rectangle(200, 50, 100, 100)
ctx.fill()
# Same as before, but a hue of 0.66 gives the equivalent blue colour
ctx.set_source_rgba(*Color.of_hsl(0.66, 0.5, 0.5))
ctx.rectangle(350, 50, 100, 100)
ctx.fill()
ctx.set_source_rgba(*Color.of_hsl(0, 0.25, 0.5))
ctx.rectangle(50, 200, 100, 100)
ctx.fill()
ctx.set_source_rgba(*Color.of_hsl(0, 0.5, 0.25))
ctx.rectangle(200, 200, 100, 100)
ctx.fill()
ctx.set_source_rgba(*Color.of_hsl(0, 0.5, 0.5))
ctx.rectangle(330, 180, 100, 100)
ctx.fill()
# Here we create a rectangle with a colour Color.of_hsla(0.5, 0.5, 0.5, 0.3).
# That is blue-green with a 0.3 alpha value (30% opacity, ie 70% transparent).
# This overlaps the previous rectangle, and you can see the background through it.
ctx.set_source_rgba(*Color.of_hsla(0.5, 0.5, 0.5, 0.3))
ctx.rectangle(370, 220, 100, 100)
ctx.fill()
make_image("/tmp/hslcolor.png", draw, 500, 350)
def creator(file):
make_image(file, draw_rgba, 400, 400, channels=4)
from generativepy.drawing import make_image, setup
from generativepy.color import Color
from generativepy.geometry import Rectangle
def draw_rgb(ctx, pixel_width, pixel_height, frame_no, frame_count):
setup(ctx, pixel_width, pixel_height, background=Color("cornflowerblue"))
pos = [10, 10]
w = 100
h = 100
Rectangle(ctx).of_corner_size(pos, w, h).fill(Color(0, 0, 0))
pos[0] += w
Rectangle(ctx).of_corner_size(pos, w, h).fill(Color(0.5, 0, 0))
pos[0] += w
Rectangle(ctx).of_corner_size(pos, w, h).fill(Color(1, 0, 0))
pos[0] += w
Rectangle(ctx).of_corner_size(pos, w, h).fill(Color(0.5, 1, 0))
pos[0] += w
Rectangle(ctx).of_corner_size(pos, w, h).fill(Color(0.5, 0, 1))
pos[0] += w
Rectangle(ctx).of_corner_size(pos, w, h).fill(Color(0, 1, .5))
pos[0] += w
Rectangle(ctx).of_corner_size(pos, w, h).fill(Color(0.5, 0.5, 0.5))
pos[0] += w
make_image("colour-rgb.png", draw_rgb, 720, 120)
def creator(file):
make_image(file, draw, 600, 500)
from generativepy.geometry import text
from generativepy.color import Color
from generativepy.utils import temp_file
'''
Illustrates simple use of make_image
'''
def draw(ctx, pixel_width, pixel_height, frame_no, frame_count):
setup(ctx, pixel_width, pixel_height, width=5, background=Color(0.4))
ctx.set_source_rgba(*Color(0.5, 0, 0))
ctx.rectangle(0.5, 0.5, 2.5, 1.5)
ctx.fill()
ctx.set_source_rgba(*Color(0, 0.75, 0, 0.5))
ctx.rectangle(2, 0.25, 2.5, 1)
ctx.fill()
text(ctx,
"simple-make-image",
1,
3,
size=0.2,
color=Color('cadetblue'),
font='Arial')
make_image(temp_file("simple-make-image.png"), draw, 500, 400)
from generativepy.drawing import make_image, setup
from generativepy.color import Color
from generativepy.geometry import Square, square
'''
Create squares using the geometry module.
'''
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)
make_image("/tmp/geometry-squares.png", draw, 500, 500)
# Author: Martin McBride
# Created: 2022-01-10
# Copyright (C) 2022, Martin McBride
# License: MIT
from generativepy.drawing import make_image, setup
from generativepy.color import Color
from generativepy.geometry import Rectangle, Circle
def draw_rect(ctx, width, height, frame_no, frame_count):
setup(ctx, width, 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)
make_image("user-scale.png", draw_rect, 500, 400)
pixel_width,
pixel_height,
width=width,
startx=-width / 2,
starty=-width / 2,
background=Color(1))
a = 16
b = 9
d = 6
Polygon(ctx).of_points(create_spiro_square(a, b, d)).fill(
Color('gold'), fill_rule=EVEN_ODD).stroke(Color('darkblue'),
line_width=0.1)
make_image("spirograph-square.png", draw, 600, 600)
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 = 9
from generativepy.color import Color
'''
Create colour squares that mix different amounts if r, g, b
'''
def draw(ctx, width, height, frame_no, frame_count):
ctx.set_source_rgba(*Color(1))
ctx.paint()
for i in range(200):
for j in range(200):
ctx.set_source_rgba(*Color(i / 200, j / 200, 0))
ctx.rectangle(i + 50, j + 50, 1, 1)
ctx.fill()
for i in range(200):
for j in range(200):
ctx.set_source_rgba(*Color(i / 200, 0, j / 200))
ctx.rectangle(i + 50, j + 300, 1, 1)
ctx.fill()
for i in range(200):
for j in range(200):
ctx.set_source_rgba(*Color(0, i / 200, j / 200))
ctx.rectangle(i + 50, j + 550, 1, 1)
ctx.fill()
make_image("/tmp/rgbcolor.png", draw, 300, 800)
# The ellipse function is a convenience function that adds a ellipse as a new the path.
# You can fill or stroke it as you wish.
ellipse(ctx, (1, 1), 0.7, 1.1)
ctx.set_source_rgba(*Color(1, 0, 0))
ctx.fill()
# Ellipse objects can be filled, stroked, filled and stroked.
Ellipse(ctx).of_center_radius(
(2.5, 1), 0.7, 0.3).fill(Color(0, 0, 1)).stroke(Color(0), 0.05)
Ellipse(ctx).of_center_radius(
(4, 1), 0.7, 0.3).as_arc(0, 1).stroke(Color(0, 0.5, 0), 0.05)
Ellipse(ctx).of_center_radius(
(1, 2.5), 0.7, 0.3).as_sector(1, 3).stroke(Color('orange'), 0.05)
Ellipse(ctx).of_center_radius(
(2.5, 2.5), 0.7, 0.3).as_sector(2, 4.5).fill(Color('cadetblue'))
Ellipse(ctx).of_center_radius(
(4, 2.5), 0.7,
0.3).as_sector(2.5,
6).fill(Color('yellow')).stroke(Color('magenta'), 0.05)
Ellipse(ctx).of_center_radius(
(1, 4), 0.7, 0.3).as_segment(1, 3).stroke(Color('orange'), 0.05)
Ellipse(ctx).of_center_radius(
(2.5, 4), 0.7, 0.3).as_segment(2, 4.5).fill(Color('cadetblue'))
Ellipse(ctx).of_center_radius((4, 4), 0.7, 0.3).as_segment(2.5, 6).fill(
Color('yellow')).stroke(Color('magenta'), 0.05)
make_image("/tmp/geometry-ellipses.png", draw, 500, 500)
# Author: Martin McBride
# Created: 2021-11-07
# Copyright (C) 2021, Martin McBride
# License: MIT
# Create a simple linear gradient with several circle shapes
from generativepy.drawing import make_image, setup
from generativepy.color import Color
from generativepy.geometry import Circle, LinearGradient
def draw(ctx, pixel_width, pixel_height, frame_no, frame_count):
setup(ctx, pixel_width, pixel_height, background=Color(0.4))
gradient = LinearGradient().of_points(
(150, 150), (350, 250)).with_start_end(Color('yellow'),
Color('red')).build()
Circle(ctx).of_center_radius((100, 100), 75).fill(gradient)
Circle(ctx).of_center_radius((270, 100), 75).fill(gradient)
Circle(ctx).of_center_radius((150, 300), 75).fill(gradient)
Circle(ctx).of_center_radius((400, 300), 75).fill(gradient)
make_image("circles-linear-gradient.png", draw, 500, 400)
from generativepy import graph
from generativepy.drawing import make_image, setup
from generativepy.color import Color
from generativepy.graph import Axes, Plot
'''
Create a simple graph
'''
def draw(ctx, width, height, frame_no, frame_count):
setup(ctx, width, height, background=Color(1))
# Creates a set of axes.
# Use the default size of 10 units, but offset the start toplace the origin inthe centre
axes = Axes(ctx, (50, 50), 500, 500).of_start((-5, -5))
axes.draw()
# Add various curves
axes.clip()
Plot(axes).of_function(lambda x: x * x).stroke(pattern=Color('red'))
Plot(axes).of_xy_function(lambda x: 1.5**x).stroke(pattern=Color('green'))
Plot(axes).of_polar_function(lambda x: 2 * x).stroke(pattern=Color('blue'))
axes.unclip()
make_image("/tmp/simplegraph.png", draw, 500, 500)
# License: MIT
from generativepy.drawing import make_image, setup
from generativepy.color import Color
from generativepy.geometry import Rectangle
def draw_lerp(ctx, pixel_width, pixel_height, frame_no, frame_count):
setup(ctx, pixel_width, pixel_height, background=Color('cornflowerblue'))
color1 = Color('red')
color2 = Color('blue')
pos = [10, 10]
w = 100
h = 100
Rectangle(ctx).of_corner_size(pos, w, h).fill(color1.lerp(color2, 0))
pos[0] += w
Rectangle(ctx).of_corner_size(pos, w, h).fill(color1.lerp(color2, 0.25))
pos[0] += w
Rectangle(ctx).of_corner_size(pos, w, h).fill(color1.lerp(color2, 0.5))
pos[0] += w
Rectangle(ctx).of_corner_size(pos, w, h).fill(color1.lerp(color2, 0.75))
pos[0] += w
Rectangle(ctx).of_corner_size(pos, w, h).fill(color1.lerp(color2, 1))
pos[0] += w
make_image("colour-lerp.png", draw_lerp, 520, 120)
from generativepy.drawing import make_image, setup
from generativepy.color import Color
from generativepy.geometry import triangle, Triangle
'''
Create triangles using the geometry module.
'''
def draw(ctx, width, height, frame_no, frame_count):
setup(ctx, width, height, width=500, background=Color(0.8))
# The triangle function is a convenience function that adds a triangle as a new path.
# You can fill or stroke it as you wish.
triangle(ctx, (100, 100), (150, 50), (200, 150))
ctx.set_source_rgba(*Color(1, 0, 0))
ctx.fill()
Triangle(ctx).of_corners((300, 100), (300, 150),
(400, 200)).stroke(Color('orange'), 10)
make_image("/tmp/geometry-triangle.png", draw, 500, 500)
from generativepy.geometry import Circle, Square, Text
'''
Create bezier curve using the geometry module.
'''
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").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()
make_image("/tmp/geometry-clip.png", draw, 500, 500)
def creator(file):
make_image(file, draw, 800, 800)
# Author: Martin McBride
# Created: 2021-11-07
# Copyright (C) 2021, Martin McBride
# License: MIT
# Create a simple linear gradient
from generativepy.drawing import make_image, setup
from generativepy.color import Color
from generativepy.geometry import Rectangle, LinearGradient
def draw(ctx, pixel_width, pixel_height, frame_no, frame_count):
setup(ctx, pixel_width, pixel_height, background=Color(0.4))
gradient = LinearGradient().of_points((150, 150), (350, 250)).with_start_end(Color('yellow'), Color('red')).build()
Rectangle(ctx).of_corner_size((150, 150), 200, 100).fill(gradient)
make_image("simple-linear-gradient.png", draw, 500, 400)
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))
make_image("colour-delta.png", draw_delta, 320, 340)
ctx.save()
ctx.translate(0, 200)
Circle(ctx).of_center_radius((20, 20), 10).as_arc(math.pi,
math.pi * 3 / 2).add()
Circle(ctx).of_center_radius((60, 20), 10).as_arc(math.pi * 3 / 2,
0).extend_path().add()
Circle(ctx).of_center_radius(
(60, 60), 10).as_arc(0, math.pi / 2).extend_path().add()
Circle(ctx).of_center_radius(
(20, 60), 10).as_arc(math.pi / 2, math.pi).extend_path().fill(
Color('red')).stroke(Color('blue'), 5)
ctx.restore()
# roundrect closed
ctx.save()
ctx.translate(100, 200)
Circle(ctx).of_center_radius((20, 20), 10).as_arc(math.pi,
math.pi * 3 / 2).add()
Circle(ctx).of_center_radius((60, 20), 10).as_arc(math.pi * 3 / 2,
0).extend_path().add()
Circle(ctx).of_center_radius(
(60, 60), 10).as_arc(0, math.pi / 2).extend_path().add()
Circle(ctx).of_center_radius(
(20, 60),
10).as_arc(math.pi / 2, math.pi).extend_path(close=True).fill(
Color('red')).stroke(Color('blue'), 5)
ctx.restore()
make_image("/tmp/geometry-complex-paths.png", draw, 600, 600)
from generativepy.drawing import make_image, setup
from generativepy.geometry import text
from generativepy.color import Color
'''
Create a very simple image
'''
def draw(ctx, pixel_width, pixel_height, frame_no, frame_count):
setup(ctx, pixel_width, pixel_height, width=5, background=Color(0.4))
ctx.set_source_rgba(*Color(0.5, 0, 0))
ctx.rectangle(0.5, 0.5, 2.5, 1.5)
ctx.fill()
ctx.set_source_rgba(*Color(0, 0.75, 0, 0.5))
ctx.rectangle(2, 0.25, 2.5, 1)
ctx.fill()
text(ctx,
"Simple Image",
1,
3,
size=0.5,
color=Color('cadetblue'),
font='Arial')
make_image("/tmp/simpleimage.png", draw, 500, 400)
from generativepy.drawing import make_image, setup, EVEN_ODD
from generativepy.color import Color
from generativepy.geometry import Polygon
import math
def draw(ctx, pixel_width, pixel_height, frame_no, frame_count):
setup(ctx, pixel_width, pixel_width, background=Color(0.8))
black = Color(0)
red = Color('red')
Polygon(ctx).of_points([
(150, 50),
(100, 250),
(250, 150),
(50, 150),
(200, 250),
]).fill(red).stroke(black, 5)
Polygon(ctx).of_points([
(450, 50),
(400, 250),
(550, 150),
(350, 150),
(500, 250),
]).fill(red, fill_rule=EVEN_ODD).stroke(black, 5)
make_image("complex-polygon.png", draw, 700, 300)
"Text",
(450, 90)).font("Times").size(20).align_right().align_baseline().fill(
Color('blue'))
Circle(ctx).of_center_radius((190, 200), 2).fill(Color(0, 0, 1))
Text(ctx).of(
"gTop",
(200, 200)).font("Times").size(20).align_left().align_top().fill(
Color('black'))
Circle(ctx).of_center_radius((190, 250), 2).fill(Color(0, 0, 1))
Text(ctx).of(
"gMid",
(200, 250)).font("Times").size(20).align_left().align_middle().fill(
Color('black'))
Circle(ctx).of_center_radius((190, 300), 2).fill(Color(0, 0, 1))
Text(ctx).of(
"gBase",
(200, 300)).font("Times").size(20).align_left().align_baseline().fill(
Color('black'))
Circle(ctx).of_center_radius((190, 350), 2).fill(Color(0, 0, 1))
Text(ctx).of(
"gBottom",
(200, 350)).font("Times").size(20).align_left().align_bottom().fill(
Color('black'))
make_image("text-align.png", draw, 500, 400)
from generativepy.geometry import Rectangle, Square, Triangle, Polygon, Line
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)
make_image("polygons-tutorial.png", draw, 550, 550)
def creator(file):
make_image(file, draw, 600, 700, channels=3)
# License: MIT
from generativepy.drawing import make_image, setup
from generativepy.color import Color
from generativepy.geometry import Rectangle, Transform
def draw(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 = 2
Rectangle(ctx).of_corner_size((10, 10), 200, 150).stroke(blue, thickness)
with Transform(ctx).translate(0, 200):
Rectangle(ctx).of_corner_size((10, 10), 200,
150).stroke(red, thickness)
with Transform(ctx) as t:
Rectangle(ctx).of_corner_size((250, 100), 50, 150).fill(blue)
t.translate(60, 10)
Rectangle(ctx).of_corner_size((250, 100), 50, 150).fill(red)
t.translate(60, 10)
Rectangle(ctx).of_corner_size((250, 100), 50, 150).fill(red)
make_image("translate-tutorial.png", draw, 450, 400)
def creator(file):
make_image(file, draw, 300, 800, channels=3)
from generativepy.geometry import Rectangle, Transform, Circle
def draw(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')
green = Color('green')
thickness = 8
Rectangle(ctx).of_corner_size((50, 40), 100, 30).fill(blue)
with Transform(ctx).scale(1.5, 2):
Rectangle(ctx).of_corner_size((50, 40), 100, 30).fill(red)
with Transform(ctx) as t:
Circle(ctx).of_center_radius((220, 260), 5).fill(green)
Rectangle(ctx).of_corner_size((20, 160), 400,
200).stroke(blue, thickness)
t.scale(0.5, 0.5, (220, 260))
Rectangle(ctx).of_corner_size((20, 160), 400,
200).stroke(red, thickness)
t.scale(0.5, 0.5, (220, 260))
Rectangle(ctx).of_corner_size((20, 160), 400,
200).stroke(red, thickness)
make_image("scale-tutorial.png", draw, 450, 400)
