kopia lustrzana https://github.com/EmbroidePy/pyembroidery
82 wiersze
2.4 KiB
Python
82 wiersze
2.4 KiB
Python
import pyembroidery.EmbPattern as EmbPattern
|
|
from pyembroidery.EmbConstant import *
|
|
import math
|
|
|
|
|
|
def evaluate_lsystem(symbol, rules, depth):
|
|
if depth <= 0 or symbol not in rules:
|
|
symbol()
|
|
else:
|
|
for produced_symbol in rules[symbol]:
|
|
evaluate_lsystem(produced_symbol, rules, depth - 1)
|
|
|
|
|
|
class Turtle:
|
|
def __init__(self, pattern):
|
|
self.pattern = pattern
|
|
self.angle = 0
|
|
self.x = 0
|
|
self.y = 0
|
|
import math
|
|
self.turn_amount = math.pi / 3
|
|
|
|
def forward(self, distance):
|
|
self.x += distance * math.cos(self.angle)
|
|
self.y += distance * math.sin(self.angle)
|
|
self.pattern.add_stitch_absolute(STITCH, self.x, self.y)
|
|
# self.pattern.add_stitch_absolute(SEQUIN_EJECT, self.x, self.y)
|
|
|
|
def turn(self, angle):
|
|
self.angle += angle
|
|
|
|
def move(self, distance):
|
|
self.x += distance * math.cos(self.angle)
|
|
self.y += distance * math.sin(self.angle)
|
|
|
|
def add_gosper(self):
|
|
a = lambda: self.forward(20)
|
|
b = lambda: self.forward(20)
|
|
l = lambda: self.turn(self.turn_amount)
|
|
r = lambda: self.turn(-self.turn_amount)
|
|
initial = lambda: None
|
|
rules = {
|
|
initial: [a],
|
|
a: [a, l, b, l, l, b, r, a, r, r, a, a, r, b, l],
|
|
b: [r, a, l, b, b, l, l, b, l, a, r, r, a, r, b]
|
|
}
|
|
evaluate_lsystem(initial, rules, 3) # 4
|
|
|
|
def add_serp(self):
|
|
a = lambda: self.forward(20)
|
|
b = lambda: self.forward(20)
|
|
l = lambda: self.turn(self.turn_amount)
|
|
r = lambda: self.turn(-self.turn_amount)
|
|
initial = lambda: None
|
|
rules = {
|
|
initial: [a],
|
|
a: [b, l, a, l, b],
|
|
b: [a, r, b, r, a]
|
|
}
|
|
evaluate_lsystem(initial, rules, 3) # 6
|
|
|
|
|
|
def generate(pattern):
|
|
turtle = Turtle(pattern);
|
|
turtle.add_gosper()
|
|
pattern.add_command(COLOR_BREAK)
|
|
turtle.move(500)
|
|
turtle.add_serp()
|
|
pattern.add_command(SEQUENCE_BREAK)
|
|
pattern.add_command(STOP)
|
|
turtle.move(50)
|
|
turtle.add_serp()
|
|
pattern.add_command(SEQUENCE_BREAK)
|
|
turtle.turn(-math.pi / 3)
|
|
turtle.move(500)
|
|
turtle.add_serp()
|
|
pattern.add_command(COLOR_BREAK)
|
|
turtle.turn(-math.pi / 3)
|
|
turtle.move(500) # 260, -450
|
|
turtle.add_gosper()
|
|
pattern.add_command(END)
|