python - 如何在文件中保存和恢复海龟图形绘制参数？

Question

是否可以在 Turtle 中绘制一些东西，将绘制参数保存在文件或 db 中，退出应用程序并使用目前绘制的图片重新打开它？

Answer 1

如果有人感兴趣，我现在已经解决了我的问题，如下所示：由于我还是 python 的新手，我仍然对包装函数不太满意。每次运行时使用 Turtle 绘制并保存为 PNG 的图形。所以现在我有了我在哪里以及如何继续的概述，如果我关闭应用程序

import turtle
from turtle import ScrolledCanvas, RawTurtle, TurtleScreen
from random import randint
from tkinter import *
from PIL import Image
import time
root = Tk()
cnt = 0
canvas = Canvas(root, width=800, height=800)
canvas.pack()

myPen = RawTurtle(canvas)
myPen.speed("fastest")

def drawTree(branchLen, t, size):
    global cnt
    cnt += 1
    makePicture(myPen, cnt)
    if branchLen > 5:
        if branchLen < 20:
            t.color("green")
        if size < 0:
            size = 1
            rsize = size
        else:
            rsize = size + 1

        myPen.pensize(size)
        tangle = 20
        t.forward(branchLen)
        t.right(tangle)
        drawTree(branchLen - randint(5, 15), t, size - 1)

        t.left(2 * tangle)
        drawTree(branchLen - randint(5, 15), t, size - 1)
        t.right(tangle)

        t.backward(branchLen)
        myPen.pensize(rsize)
        t.color("black")


def makePicture(myPen, cnt):
    nameeps = "tree.eps"
    ts = myPen.getscreen()
    ts.getcanvas().postscript(file=nameeps)
    saveImg(nameeps, cnt)

def saveImg(nameeps,cnt):
    image = "tree{}.png".format(cnt)
    canvas.postscript(file=nameeps, colormode='color')
    imgNew = Image.open(nameeps)
    imgNew.convert("RGBA")
    imgNew.thumbnail((2000,2000), Image.ANTIALIAS)
    imgNew.save(image, quality=95)

myPen.hideturtle()
myPen.penup()
size = 10
myPen.pensize(size)
myPen.goto(-50, -300)
myPen.pendown()
myPen.left(90)
drawTree(100, myPen, size)
root.mainloop()

这只是我尝试过的示例代码