axi/examples/circles.py

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2017-01-14 03:18:02 +00:00
import axi
import math
import random
def circle(cx, cy, r, n):
points = []
for i in range(n + 1):
a = 2 * math.pi * i / n
x = cx + math.cos(a) * r
y = cy + math.sin(a) * r
points.append((x, y))
return points
def random_points_on_circle(cx, cy, r, n):
result = []
a = random.random() * 2 * math.pi
da = 2 * math.pi / n
for i in range(n):
x = cx + math.cos(a) * r
y = cy + math.sin(a) * r
result.append((x, y))
a += da
return result
def add(x, y, r, paths):
if r < 1:
return
paths.append(circle(x, y, r, 90))
points = random_points_on_circle(x, y, r, 2)
for x, y in points:
add(x, y, r / 2, paths)
def main():
paths = []
add(0, 0, 64, paths)
drawing = axi.Drawing(paths).rotate_and_scale_to_fit(11, 8.5).sort_paths()
im = drawing.render()
im.write_to_png('out.png')
axi.draw(drawing)
if __name__ == '__main__':
main()