Python tkinter库之Canvas 直线等分圆弧（割圆术）

import tkinter as tk
import pyautogui as ag
import random
from time import sleep as Delay
from math import sin
from math import cos
from math import pi
from numpy import arange as np
def Window_Open(W, H):
    X, Y = ag.size()
    winSize = str(W)+"x"+str(H)
    winPos = winSize + "+" + str((X - W) // 2)
    winPos += "+" + str((Y - H) // 2)
    win.geometry(winPos)
    win.resizable(False, False)
    title = u'桌面分辨率：' + str(X) + "x" + str(Y)
    title += ' ' * 5 + u'窗体大小：' + winSize
    win.title(title)
    win.update()
if __name__ == '__main__':
    win = tk.Tk()
    Window_Open(480,480)
    tCanvas = tk.Canvas(win, width=win.winfo_width(), height=480, bg='white')
    tCanvas.pack(side="top")
    Color = ['red','blue','green','magenta','navy','lawngreen','orange']
    Rad = [60,45,30,15,10,5]
    for i in range(len(Rad)):
        step=Rad[i]*pi/180
        for t in np(-pi,pi,step):
            x = 240+200*cos(t)
            y = 240+200*sin(t)
            for r in np(-pi,pi,step):
                x0 = 240+200*cos(r)
                y0 = 240+200*sin(r)
                c = random.choice(Color)
                coord=x,y,x0,y0
                tCanvas.create_line(coord,fill=c)
            tCanvas.update()
        Delay(2)
        if i+1!=len(Rad):
            tCanvas.create_rectangle(0,0,480,480,outline='white',fill='white')
    win.mainloop()

import tkinter as tk
import pyautogui as ag
from time import sleep as Delay
from math import sin
from math import cos
from math import pi
from numpy import arange as np
def Window_Open(W, H):
    X, Y = ag.size()
    winSize = str(W)+"x"+str(H)
    winPos = winSize + "+" + str((X - W) // 2)
    winPos += "+" + str((Y - H) // 2)
    win.geometry(winPos)
    win.resizable(False, False)
    title = u'桌面分辨率：' + str(X) + "x" + str(Y)
    title += ' ' * 5 + u'窗体大小：' + winSize
    win.title(title)
    win.update()
if __name__ == '__main__':
    win = tk.Tk()
    Window_Open(480,480)
    tCanvas = tk.Canvas(win, width=win.winfo_width(), height=480, bg='white')
    tCanvas.pack(side="top")
    c_txt=tCanvas.create_text((225, 240),text='',anchor=tk.W, font=("宋体",20))
    step = pi
    for i in range(1,15):
        step/=2
        for t in np(-pi+pi/4,pi+pi/4,step):
            x = 240+200*cos(t)
            y = 240+200*sin(t)
            x0 = 240+200*cos(t+step)
            y0 = 240+200*sin(t+step)
            coord=x,y,x0,y0
            tCanvas.create_line(coord)
        tCanvas.itemconfig(c_txt, text=str(2**(i+1)))
        tCanvas.update()
        Delay(0.5)
    tCanvas.create_text((225, 280),text='End!',anchor=tk.W, font=("宋体",20))
    tCanvas.update()
    win.mainloop()

c_txt = tCanvas.create_text((225, 240),text='变更前的文字',anchor=tk.W, font=("宋体",20))
tCanvas.itemconfig(c_txt, text='变更后的文字')