# -*- encoding: utf-8 -*-
import tkinter as tk
from tkinter import *
import random
import numpy as np

FITT_SAVE = {}
FITT_LIST = []
global Canvas2          # 用于显示函数的画布
Img1 = None             # 绘制的dot.png图像
Img2 = None             # 绘制的line.png图像
Xian_index = 0          # 当前选择的函数编号
Quadrant = 0            # 当前选择的象限信息0为四象限，1为一象限
MAXV = 1000             # 最大值
INDEX = 5               # 拟合函数索引
Out = ''                # 拟合输出信息
LOW = -MAXV             # 坐标轴显示上界
HIGH = MAXV             # 坐标轴显示下界
MAGNIDICATION = 1.0     # 放大倍数
SampleData = None       # 样本数据
CurveData = None        # 拟合数据

set_img1 = None
set_img2 = None

global Q_root,F_root
global root_window
global label1,label2,label3