axi/examples/piet.py

65 lines
1.6 KiB
Python
Raw Normal View History

2017-03-21 02:16:44 +00:00
from shapely.geometry import LineString
import axi
import random
X1 = 0
X2 = 11
Y1 = 0
Y2 = 8.5
def make_segment(x1, y1, x2, y2):
return LineString([(x1, y1), (x2, y2)])
def intersections(segments, segment):
result = []
for other in segments:
x = segment.intersection(other)
if x:
try:
result.append((x.x, x.y))
except Exception:
pass
return result
def new_segment(segments):
if random.random() < 0.5:
x = X1 + random.random() * (X2 - X1)
x = round(x * 5) / 5
s = make_segment(x, Y1, x, Y2)
ixs = intersections(segments, s)
(x1, y1), (x2, y2) = random.sample(ixs, 2)
return make_segment(x1, y1, x2, y2)
else:
y = Y1 + random.random() * (Y2 - Y1)
y = round(y * 5) / 5
s = make_segment(X1, y, X2, y)
ixs = intersections(segments, s)
(x1, y1), (x2, y2) = random.sample(ixs, 2)
return make_segment(x1, y1, x2, y2)
def main():
# seed = random.randint(0, 99999999)
# print seed
random.seed(82480774)
segments = [
make_segment(X1, Y1, X2, Y1),
make_segment(X1, Y2, X2, Y2),
make_segment(X1, Y2, X1, Y1),
make_segment(X2, Y2, X2, Y1),
]
for i in range(50):
# print i
segment = new_segment(segments)
segments.append(segment)
paths = []
for segment in segments:
paths.append(list(segment.coords))
d = axi.Drawing(paths)
d = d.sort_paths()
d = d.join_paths(0.001)
d.render().write_to_png('out.png')
axi.draw(d)
if __name__ == '__main__':
main()