kopia lustrzana https://github.com/villares/sketch-a-day
92 wiersze
2.3 KiB
Python
92 wiersze
2.3 KiB
Python
# Baseado no L-System apresentado pela Tatasz na
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# Noite de Processing
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"""
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Thanks @bbfontes! The right data structure makes it so much more elegant!
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As @ramalhoorg teaches us "elegance begets simplicity".
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A dictionary is perfect for #LSystem rules. #Processing #Python
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"""
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iterations = 6
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stroke_len = 300
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angle_deg = 90
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axiom = "HGF"
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sentence = axiom
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rules = {
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"F": "F-F++F-F",
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"G": "[HG]HGF",
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"H": "F[-GH]+GH",
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}
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def setup():
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size(700, 700)
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strokeWeight(1)
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noFill()
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generate(iterations)
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def draw():
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background(0)
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translate(width / 2, 250)
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plot(radians(angle_deg))
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def generate(n):
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global stroke_len, sentence
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for _ in range(n):
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stroke_len *= 0.5
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next_sentence = ""
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for c in sentence:
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next_sentence += rules.get(c, c)
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sentence = next_sentence
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def plot(angle):
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for c in sentence:
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if c == "F":
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line(0, 0, stroke_len/2, -stroke_len)
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translate(0, -stroke_len)
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# ellipse(0, 0, 10, 10)
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elif c == "G":
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line(0, 0, stroke_len/2, -stroke_len)
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translate(0, -stroke_len)
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elif c == "H":
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line(0, 0, stroke_len/2, -stroke_len)
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translate(0, -stroke_len)
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elif c == "+":
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stroke(255, 0, 255)
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rotate(angle)
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elif c == "-":
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stroke(0, 255, 255)
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rotate(-angle)
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elif c == "[":
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stroke(255, 255, 0)
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pushMatrix()
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elif c == "]":
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stroke(0, 0, 255)
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popMatrix()
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def keyPressed():
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global angle_deg
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if keyCode == LEFT:
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angle_deg -= 5
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print(angle_deg)
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if keyCode == RIGHT:
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angle_deg += 5
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print(angle_deg)
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if key == 's':
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saveFrame("####.png")
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def settings():
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""" print markdown to add at the sketch-a-day page"""
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from os import path
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global SKETCH_NAME, OUTPUT
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SKETCH_NAME = path.basename(sketchPath())
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OUTPUT = ".png"
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println(
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"""
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[{0}](https://github.com/villares/sketch-a-day/tree/master/{2}/{0}) [[Py.Processing](https://villares.github.io/como-instalar-o-processing-modo-python/index-EN)]
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""".format(SKETCH_NAME, OUTPUT, year())
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)
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