from fractal import Pen
p = Pen([400, 470])
p.setAngle(90)
p.setPoint([170, 470])
p.doD0L(omega="f",
P={
"f": "h+[[f]-f]-h[-hf]+f",
"h": "hh"
},
delta=22.5,
times=6,
length=400,
rate=2.3)
p.wait()
# 窗花
from fractal import Pen
p = Pen([500, 500], title="Window")
p.setPoint([495, 495])
p.setAngle(90)
p.doD0L(omega="f+f+f+f",
P={"f": "ff+f--f+f"},
delta=90,
times=5,
length=490,
rate=3)
p.wait()
# 科赫雪花
from fractal import Pen
p = Pen([500,500],title = "Koch Snow")
p.setPoint([30,130])
p.doD0L(omega = "f--f--f", P = {"f": "f+f--f+f"}, delta = 60, times = 5, length = 400, rate = 3)
p.wait()
from fractal import Pen
p = Pen([400, 450])
p.setAngle(90)
p.setPoint([200, 450])
p.doD0L(omega="f",
P={
"f": "h[-f]h[+f]-f",
"h": "hh"
},
delta=22.5,
times=7,
length=400,
rate=2.17)
p.wait()
# 其他曲线
from fractal import Pen
p = Pen([500, 500], title="Else")
p.setPoint([250, 250])
p.doD0L(omega="f+f+f+f",
P={"f": "ff-f-f-f-f+f-f"},
delta=90,
times=5,
length=100,
rate=3)
p.wait()
# 皮亚洛曲线
from fractal import Pen
p = Pen([500, 500])
p.setPoint([85, 85])
p.setWidth(1)
p.doD0L(omega="R",
P={
"L": "L-R--R+L++LL+R-",
"R": "+L-RR--R-L++L+R"
},
delta=60,
times=4,
length=139,
rate=2)
p.wait()
# Tree
from fractal import Pen
p = Pen([400, 510])
p.setPoint([250, 510])
p.setAngle(90)
p.doD0L(omega="f",
P={"f": "ff+[+f-f-f]-[-f+f+f]"},
delta=22.5,
times=4,
length=400,
rate=2.6)
p.wait()
# 二次Koch岛
from fractal import Pen
p = Pen([500, 500], title="Koch island")
p.setPoint([100, 100])
p.doD0L(omega="f-f-f-f",
P={"f": "f+f-f-ff+f+f-f"},
delta=90,
times=4,
length=300,
rate=4)
p.wait()
from fractal import Pen
p = Pen([500,500])
p.setPoint([10, 490])
p.doD0L(omega = "R", P = {"L":"R+L+R", "R": "L-R-L"}, delta = 60, times = 8, length = 450, rate = 2)
p.wait()
# 谢尔宾斯基方毯
from fractal import Pen
p = Pen([500, 500], title="Sierpinski")
p.setPoint([50, 240])
p.doD0L(omega="f",
P={
"h": "hhh",
"f": "f-f+f+f+h-f-f-f+f"
},
delta=90,
times=4,
length=400,
rate=3)
p.wait()
# 科赫曲线
from fractal import Pen
p = Pen([500, 300], title="Koch")
p.setPoint([5, 190])
p.doD0L(omega="f", P={"f": "f+f--f+f"}, delta=60, times=4, length=490, rate=3)
p.wait()
# 谢尔宾斯基三角
from fractal import Pen
p = Pen([500, 460], title="Sierpinski")
p.setPoint([5, 5])
p.doD0L(omega="f--f--f", P={"g": "gg", "f": "f--f--f--gg"},
delta=60, times=5, length=490, rate=2)
p.wait()
# 龙曲线
from fractal import Pen
from math import sqrt
p = Pen([350, 270])
p.setPoint([140, 60])
p.setWidth(1)
p.doD0L(omega="L",
P={
"L": "L+R",
"R": "L-R"
},
delta=90,
times=15,
length=200,
rate=sqrt(2))
p.wait()
# 树形
from fractal import Pen
p = Pen([260, 500])
p.setPoint([130, 500])
p.setAngle(90)
p.doD0L(omega="f",
P={"f": "f[-f]f[+f]f"},
delta=30,
times=5,
length=480,
rate=3)
p.wait()
# FASS曲线
from fractal import Pen
p = Pen([420, 420])
p.setPoint([10, 10])
p.doD0L(omega="L",
P={
"L": "LFRFL-FF-RFLFR+FF+LFRFL",
"R": "RFLFR+FF+LFRFL-FF-RFLFR"
},
delta=90,
times=4,
length=200,
rate=3)
p.wait()
# FASS曲线
from fractal import Pen
p = Pen([420, 420])
p.setPoint([10, 400])
p.doD0L(omega="L",
P={
"L": "LF+RFR+FL-F-LFLFL-FRFR+",
"R": "-LFLF+RFRFR+F+RF-LFL-FR"
},
delta=90,
times=4,
length=200,
rate=3)
p.wait()