Question

最终产品应该像这样

如何在图像的下部制作三角形？到目前为止，我只有6个条纹。我正在使用tkinter和random。

import tkinter
import random
import math
import time

canvas = tkinter.Canvas(width=600 ,height=400)
canvas.pack()
previerka = tkinter.Tk()
frame = tkinter.Frame(previerka)
frame.pack()

def shooting1():
    for a in range(8000):
        y = 0
        x = 0
        xr = random.randint(0,600)
        yp = random.randint(0,600)
        if yp <= 600:
            canvas.create_oval(x+xr,y+yp,x+xr,y+yp, outline="yellow", width=2)
        if 100 <= xr <= 300:
            canvas.create_oval(x+xr,y+yp,x+xr,y+yp, outline="black", width=2)
        if 200 <= xr <= 400:
            canvas.create_oval(x+xr,y+yp,x+xr,y+yp, outline="blue", width=2)
        if 300 <= xr <= 500:
            canvas.create_oval(x+xr,y+yp,x+xr,y+yp, outline="green", width=2)
        if 400 <= xr <= 600:
            canvas.create_oval(x+xr,y+yp,x+xr,y+yp, outline="white", width=2)
        if 500 <= xr <= 700:
            canvas.create_oval(x+xr,y+yp,x+xr,y+yp, outline="red", width=2)
button1=tkinter.Button(frame, text="shooting", fg="black", bg="white", command=shooting1)
button1.pack()

Answer 1

我不知道您是否意识到这一点，但是您重叠了所有色点（尝试将任何椭圆的宽度更改为3或4，您将意识到这一点）。您需要根据该行y = 2x/3计算x和y值是否兼容（对于计算机y轴是倒置的，因此y = 400 - 2x/3）。然后只有这样，您才能在该画布上进行绘制。这是一个例子。

import tkinter
import random

previerka = tkinter.Tk()
canvas = tkinter.Canvas(previerka, width=600, height=400)
canvas.pack()
frame = tkinter.Frame(previerka)
frame.pack()

def shooting1():
    y = 0
    x = 0
    i = 0
    r  =("%02x"%random.randint(0,255))
    g = ("%02x"%random.randint(0,255))
    b = ("%02x"%random.randint(0,255))
    rand_color="#"+r+g+b

    for _ in range(20000):
        xr = random.randint(0,600)
        yp = random.randint(0,400)
        if yp<=400-2*xr//3:
            if xr < 100:
                canvas.create_oval(x+xr,y+yp,x+xr,y+yp, outline="yellow", width=2)
            elif xr < 200:
                canvas.create_oval(x+xr,y+yp,x+xr,y+yp, outline="black", width=2)
            elif xr < 300:
                canvas.create_oval(x+xr,y+yp,x+xr,y+yp, outline="blue", width=2)
            elif xr < 400:
                canvas.create_oval(x+xr,y+yp,x+xr,y+yp, outline="green", width=2)
            elif xr < 500:
                canvas.create_oval(x+xr,y+yp,x+xr,y+yp, outline="white", width=2)
            elif xr <= 600:
                canvas.create_oval(x+xr,y+yp,x+xr,y+yp, outline="red", width=2)
        else:
            canvas.create_oval(x+xr,y+yp,x+xr,y+yp, outline=rand_color, width=2)

button1=tkinter.Button(frame, text="shooting", fg="black", bg="white", command=shooting1)
button1.pack()
previerka.mainloop()

如何在此代码中绘制对角线？

1 个答案: