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37 lines
1.3 KiB
37 lines
1.3 KiB
import math
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from time import sleep
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import tkinter as tk
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root = tk.Tk()
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def Y_pattern():
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canvas.delete("all") # 清除画布
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canvas.create_line(20, 30, 80, 90, fill='red', width=2) # 左臂
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canvas.create_line(140, 30, 80, 90, fill='red', width=2) # 右臂
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canvas.create_line(80, 160, 80, 90, fill='red', width=2) # 中心线
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def Y_tree(depth, percent, left_angle, right_angle, start_point, angle, length, canvas):
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if depth == 0:
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return
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end_point = (start_point[0] + length * math.cos(math.radians(angle)),
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start_point[1] - length * math.sin(math.radians(angle)))
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canvas.create_line(start_point, end_point, width=2)
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Y_tree(depth - 1, percent, left_angle, right_angle, end_point, angle + right_angle, length * percent,
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canvas) # 画右枝
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Y_tree(depth - 1, percent, left_angle, right_angle, end_point, angle - left_angle, length * percent,
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canvas) # 画左枝
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canvas.update()
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sleep(0.001)
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if __name__ == '__main__':
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canvas = tk.Canvas(root, width=1200, height=1000)
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canvas.pack()
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finishLevel = 10
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treePercent = 0.7
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leftAngle = 60
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rightAngle = 60
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initPoint = (520, 600)
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initAngle = 90
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initLong = 160
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Y_tree(finishLevel, treePercent, leftAngle,rightAngle,initPoint,initAngle,initLong,canvas) |