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import tkinter as tk
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import tkinter.font as tf
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import math
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FinishLevel_Y = 14
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TreePercent_Y = 0.7
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LeftAngle_Y = 30
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RightAngle_Y = 30
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InitPoint_Y = (420, 500)
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InitAngle_Y = 90
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InitLong_Y = 150
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params_Y = " 分形层数：finishLevel={}\n" \
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" 缩放比例：treePercent={}\n" \
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" 左枝倾角：leftAngle={}\n" \
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" 右枝倾角：rightAngle={}\n" \
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" 初始点：initPoint={}\n" \
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" 初始角：initAngle={}\n" \
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" 初始长度：initLong={}".format(FinishLevel_Y, TreePercent_Y, LeftAngle_Y, RightAngle_Y,
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InitPoint_Y, InitAngle_Y, InitLong_Y)
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# 创建全局变量 cv_small 和 cv_big
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cv_small = None
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cv_big = None
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# Y形基本图案函数
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def yPattern():
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cv_small.delete("all") # 清除画布
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cv_small.create_line(30, 10, 90, 70, fill='red', width=2) # 左臂
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cv_small.create_line(150, 10, 90, 70, fill='red', width=2) # 右臂
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cv_small.create_line(90, 140, 90, 70, fill='red', width=2)
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# Y形树执行函数
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def run_Y_tree():
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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, fill='LightBlue4', 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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root = tk.Tk()
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root.geometry('1270x650')
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root.title('分形树')
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ft3 = tf.Font(family="黑体", size=18)
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global cv_small, cv_big # 声明 cv_small 和 cv_big 为全局变量
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# 创建蓝色边框的大画布
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cv_big = tk.Canvas(root, bg="white", highlightthickness=1, highlightbackground="LightBlue")
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cv_big_width = 880
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cv_big_height = 690
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cv_big.config(width=cv_big_width, height=cv_big_height)
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cv_big.place(x=330, y=10, anchor='nw')
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# 创建红色边框的小画布
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cv_small_width = cv_big_width // 4
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cv_small_height = cv_big_height // 4
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cv_small = tk.Canvas(root, bg="white", highlightthickness=1, highlightbackground="red")
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cv_small.config(width=cv_small_width, height=cv_small_height)
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cv_small.place(x=530, y=cv_big_height - cv_small_height + 10, anchor='nw')
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# 绘制Y形基本图案
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yPattern()
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# 调用绘制Y形分形树的函数
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Y_tree(FinishLevel_Y, TreePercent_Y, LeftAngle_Y, RightAngle_Y, InitPoint_Y, InitAngle_Y, InitLong_Y, cv_big)
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# 创建底部的结果输出框
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output_text = tk.Text(root, bg="white", highlightthickness=1, highlightbackground="LightBlue")
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output_text.configure(font=ft3, spacing1=8)
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output_text.insert(tk.INSERT, params_Y)
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# 设置文本框不可编辑
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output_text.configure(state="disabled")
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output_text.place(x=20, y=800, width=1390, height=80, anchor='sw')
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root.mainloop()
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# 调用运行Y形树的函数
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run_Y_tree()
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