55 lines
1.0 KiB
Python
Executable File
55 lines
1.0 KiB
Python
Executable File
#!/usr/bin/python3
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from itertools import chain
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from math import sin,cos,pi
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import apple410
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axiom = list("LFL+F+LFL")
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rules = { 'L' : list("-RF+LFL+FR-"),
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'R' : list("+LF-RFR-FL+") }
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def L_repl(c):
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global rules
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r = rules.get(c)
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if r:
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return r
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return [c]
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def L_iter(system):
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a = map(L_repl,system)
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return list(chain.from_iterable(a))
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def L_sys(system,depth):
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l = axiom
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for i in range(depth):
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l = L_iter(l)
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return l
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seq=L_sys(axiom,5)
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direction = 0.0
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theta = (pi/2)
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distance = 16
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location = (452.0,451.0)
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def move(pos,angle,distance):
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nx = pos[0] + sin(angle)*distance
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ny = pos[1] + cos(angle)*distance
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return (nx,ny)
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a = apple410.Apple410('/dev/ttyUSB0')
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a.pen_select(2)
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a.move_to(location)
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for e in seq:
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if e == 'F':
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nl = move(location, direction, distance)
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a.draw_to(nl)
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print("DA {}".format(nl))
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location = nl
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elif e == '+':
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direction = direction + theta
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elif e == '-':
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direction = direction - theta
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