scale = 0.5
grammar.add_non_terminal('Scale', [
lambda turtle: turtle.scale(scale),
lambda turtle: turtle.scale_thickness(0.6),
])
grammar.add_non_terminal('Scale', [])
grammar.add_non_terminal('Tree', [
lambda turtle: turtle.store(),
'Forward Left',
'Scale',
'Tree',
lambda turtle: turtle.restore(),
lambda turtle: turtle.store(),
'Forward Right',
'Scale',
'Tree',
lambda turtle: turtle.restore(),
], 8)
grammar.add_non_terminal('Tree', [])
#for i in range(0, 5):
backend = SVGBackend()
turtle = ThickTurtle(backend)
turtle.thickness = 0.05
grammar.expand('Root', turtle, 20)
backend.write('flower3.svg')
lambda turtle: turtle.forward(0.1), lambda turtle: turtle.turn_right(5)
]
left_segment = [
lambda turtle: turtle.forward(0.1), lambda turtle: turtle.turn_left(5)
]
#grammar.add_non_terminal('Left', left_segment * 7)
#grammar.add_non_terminal('Left', left_segment * 10)
grammar.add_non_terminal('Left', left_segment * 13)
#grammar.add_non_terminal('Right', right_segment * 7)
#grammar.add_non_terminal('Right', right_segment * 10)
grammar.add_non_terminal('Right', right_segment * 13)
scale = 0.5
grammar.add_non_terminal('Tree', [
lambda turtle: turtle.store(),
'Left',
lambda turtle: turtle.scale(scale),
'Tree',
lambda turtle: turtle.restore(),
'Right',
lambda turtle: turtle.scale(scale),
'Tree',
])
grammar.expand('Tree', turtle, 15)
backend.write('tree.svg')
lambda turtle: turtle.turn_left(120),
'Tree',
lambda turtle: turtle.turn_left(120),
'Tree',
])
scale = 0.5
grammar.add_non_terminal('Scale', [
lambda turtle: turtle.scale(scale),
])
grammar.add_non_terminal('Scale', [])
grammar.add_non_terminal('Tree', [
lambda turtle: turtle.store(),
'Forward Left',
'Scale',
'Tree',
lambda turtle: turtle.restore(),
lambda turtle: turtle.store(),
'Forward Right',
'Scale',
'Tree',
lambda turtle: turtle.restore(),
], 8)
#for i in range(0, 5):
backend = SVGBackend()
turtle = Turtle(backend)
grammar.expand('Root', turtle, 12)
backend.write('flower2.svg')
from svg_backend import SVGBackend
from turtle import Turtle
from grammar import Grammar
backend = SVGBackend()
turtle = Turtle(backend)
grammar = Grammar()
grammar.add_non_terminal('RS', [
lambda turtle: turtle.forward(2),
lambda turtle: turtle.turn_right(89.9),
lambda turtle: turtle.scale(1.00001),
'RS'])
grammar.expand('RS', turtle, 300)
backend.write('rect_spiral.svg')
from svg_backend import SVGBackend
from turtle import Turtle
from grammar import Grammar
backend = SVGBackend()
turtle = Turtle(backend)
turtle.turn_right(180.0)
grammar = Grammar()
grammar.add_non_terminal('S', [
lambda turtle: turtle.forward(), lambda turtle: turtle.turn_right(5),
lambda turtle: turtle.scale(0.99), 'S'
])
grammar.expand('S', turtle, 500)
backend.write('spiral.svg')
},
"$NP": {
("$A", "$NP"): Fraction(3, 10),
("$N",): Fraction(7, 10),
},
"$VP": {
("$V", "$NP"): Fraction(3, 4),
("$V",): Fraction(1, 4),
},
"$N": {
('ideas',): .5,
('linguists',): .5,
},
"$V": {
("hate",): .5,
("generate",): .5,
},
"$A": {
("great",): .5,
("green",): .5,
}
}
english = Grammar()
english.add_terminals({'generate', 'hate', 'great', 'green', 'ideas', 'linguists'})
english.add_nonterminals({"$S", '$NP', '$VP', '$N', '$V', '$A'})
for k, v in rules.items():
english.add_rule(k, v)
print(english.expand("$S"))
