平面直角坐标系和之前的数轴模拟器有异曲同工之妙，但是作为一个二维的软件，肯定是要难一些的。。。
【安安教具】-【数学】-【数轴】模拟器 教你如何用python制作数轴模拟器 python 小项目创作_anananajiushiwo的博客-CSDN博客
https://blog.csdn.net/anananajiushiwo/article/details/122711697?spm=1001.2014.3001.5501
首先展示前端页面：
接下来展示运行效果：
教你如何用python制作平面直角坐标系模拟器
可以看到，这回四个象限都可以锁定位置啦，而且同样横轴竖轴都会随着数值变化而变化。
首先展示前端代码：
class basedesk():#底板
def __init__(self, master):
self.master = master
self.master.title("平面直角坐标系模拟器")
self.master.configure(bg='#B1FFF9')
self.master.geometry("1000x600")
mainwindow(self.master)
class mainwindow():#主界面
def __init__(self, master):
self.master = master
self.window = tk.Frame(self.master, bg='#e5ffe5')
self.window.place(x=0,y=0,width=1000,height=600)
self.window.showname_label=tk.Label(self.window,text="平面直角坐标系模拟器",fg='#26734d', bg='#ffe5ff',font=("Helvetic",60,"bold"),relief=RAISED).place(x=0, y=10,width=1000, height=150)
self.window.enter_btn=tk.Button(self.window,text="开始",bg='#ffffe5',fg='#333399',font=("Helvetic", 60, "bold"),command=self.changetofunction).place(x=360, y=300,width=250, height=150)
def changetofunction(self,):
self.window.destroy()
functionwindow(self.master)
class functionwindow():
def __init__(self, master):
self.master = master
self.window = tk.Frame(self.master, bg='#e5f9ff')
self.window.place(x=0, y=0, width=1000, height=600)
self.init_canvas()
self.window.input_label = tk.Label(self.master, text="请输入坐标x:", font=("Helvetic", 30, "bold"),
bg='#e5f9ff').place(x=70, y=500)
self.window.input_num= tk.Entry(self.window)
self.window.input_num.place(x=60, y=550,width=250, height=30)
self.window.input_label2 = tk.Label(self.master, text="请输入坐标y:", font=("Helvetic", 30, "bold"),
bg='#e5f9ff').place(x=370, y=500)
self.window.input_num2= tk.Entry(self.window)
self.window.input_num2.place(x=360, y=550,width=250, height=30)
self.window.enter_btn=tk.Button(self.window,text="确定",bg='#ffffe5',fg='#333399',font=("Helvetic", 60, "bold"),command=self.start).place(x=660, y=500,width=250, height=80)初始化画布：
def init_canvas(self):
self.window.axis_canvas=tk.Canvas ( self.window,bg = 'white')
self.window.axis_canvas.create_line((10, 210, 890, 210),arrow=tk.LAST)
for i in range(21):
self.window.axis_canvas.create_line((40+40*i, 210, 40+40*i, 200))
self.window.axis_canvas.create_line((440, 420, 440, 10), arrow=tk.LAST)
for i in range(21):
self.window.axis_canvas.create_line((440,30 + 20 * i, 450, 30 + 20 * i))
self.window.axis_canvas.place(x=50, y=50,width=900, height=430)这部分代码的作用是绘制横轴与纵轴
绘制具体内容：
def start(self):
self.window.axis_canvas.destroy()
self.init_canvas()
num=self.window.input_num.get()#得到输入框的内容
num2 = self.window.input_num2.get()
#print(num)#输入的内容
#判断是否为数字
try:
a=float(num)
b=float(num2)
except:
messagebox.showerror('错误','请输入数字')
return
self.num=float(num)
self.num2 = float(num2)
if np.abs(self.num)>1000000000000000000000000 or np.abs(self.num2)>1000000000000000000000000:
messagebox.showerror("错误","X_X这个数字太离谱啦！！！")
return
if self.num >=0:
ruler_num=self.use_positive_axis()
else:
ruler_num=self.use_negative_axis()
#插入数字并设置刻度间距
for i in range(-10,11):
if np.abs(self.num)>=1000000000000000000000:
if i%5!=0 and i!=0:
continue
elif np.abs(self.num)>=10000000000000000:
if i%4!=0 and i!=0:
continue
elif np.abs(self.num)>=1000000000:
if i%3!=0 and i!=0:
continue
elif np.abs(self.num)>=100000:
if i%2==0 and i!=0:
continue
self.window.axis_canvas.create_text(440+40*i,220,text=str(i*(10**ruler_num)))
#插入指示箭头
arrowplace=40+(10** (ruler_num+1)+self.num)*800/(10** (ruler_num+1)+10** (ruler_num+1))
#=====================================================================================
if self.num2 >=0:
ruler_num2=self.use_positive_axis2()
else:
ruler_num2=self.use_negative_axis2()
#插入数字并设置刻度间距
for i in range(-10,11):
if i==0:
continue
self.window.axis_canvas.create_text(460,210-20*i,text=str(i*(10**ruler_num2)))
#插入指示箭头
arrowplace2=410-(10** (ruler_num2+1)+self.num2)*400/(10** (ruler_num2+1)+10** (ruler_num2+1))
self.window.axis_canvas.create_line((arrowplace, arrowplace2, arrowplace, 210), arrow=tk.LAST)
self.window.axis_canvas.create_line((arrowplace, arrowplace2, 440, arrowplace2), arrow=tk.LAST)
self.window.axis_canvas.create_oval((arrowplace-5, arrowplace2-5, arrowplace+5, arrowplace2+5),fill='black')绘制横轴，纵轴的正负轴：
def use_positive_axis(self):
a=0
if self.num==0:
return 1
while True:
if 10**a<=self.num<10** (a+1):
return a
a += 1
def use_negative_axis(self):
a = 0
while True:
if 10**a<= -self.num <10** (a+1):
return a
a+=1
def use_positive_axis2(self):
a=0
if self.num2==0:
return 1
while True:
if 10**a<=self.num2<10** (a+1):
return a
a += 1
def use_negative_axis2(self):
a = 0
while True:
if 10**a<= -self.num2 <10** (a+1):
return a
a+=1最后展示完整代码：
from tkinter import *
from tkinter import messagebox
import tkinter as tk
import numpy as np
class basedesk():#底板
def __init__(self, master):
self.master = master
self.master.title("平面直角坐标系模拟器")
self.master.configure(bg='#B1FFF9')
self.master.geometry("1000x600")
mainwindow(self.master)
class mainwindow():#主界面
def __init__(self, master):
self.master = master
self.window = tk.Frame(self.master, bg='#e5ffe5')
self.window.place(x=0,y=0,width=1000,height=600)
self.window.showname_label=tk.Label(self.window,text="平面直角坐标系模拟器",fg='#26734d', bg='#ffe5ff',font=("Helvetic",60,"bold"),relief=RAISED).place(x=0, y=10,width=1000, height=150)
self.window.enter_btn=tk.Button(self.window,text="开始",bg='#ffffe5',fg='#333399',font=("Helvetic", 60, "bold"),command=self.changetofunction).place(x=360, y=300,width=250, height=150)
def changetofunction(self,):
self.window.destroy()
functionwindow(self.master)
class functionwindow():
def __init__(self, master):
self.master = master
self.window = tk.Frame(self.master, bg='#e5f9ff')
self.window.place(x=0, y=0, width=1000, height=600)
self.init_canvas()
self.window.input_label = tk.Label(self.master, text="请输入坐标x:", font=("Helvetic", 30, "bold"),
bg='#e5f9ff').place(x=70, y=500)
self.window.input_num= tk.Entry(self.window)
self.window.input_num.place(x=60, y=550,width=250, height=30)
self.window.input_label2 = tk.Label(self.master, text="请输入坐标y:", font=("Helvetic", 30, "bold"),
bg='#e5f9ff').place(x=370, y=500)
self.window.input_num2= tk.Entry(self.window)
self.window.input_num2.place(x=360, y=550,width=250, height=30)
self.window.enter_btn=tk.Button(self.window,text="确定",bg='#ffffe5',fg='#333399',font=("Helvetic", 60, "bold"),command=self.start).place(x=660, y=500,width=250, height=80)
def init_canvas(self):
self.window.axis_canvas=tk.Canvas ( self.window,bg = 'white')
self.window.axis_canvas.create_line((10, 210, 890, 210),arrow=tk.LAST)
for i in range(21):
self.window.axis_canvas.create_line((40+40*i, 210, 40+40*i, 200))
self.window.axis_canvas.create_line((440, 420, 440, 10), arrow=tk.LAST)
for i in range(21):
self.window.axis_canvas.create_line((440,30 + 20 * i, 450, 30 + 20 * i))
self.window.axis_canvas.place(x=50, y=50,width=900, height=430)
def start(self):
self.window.axis_canvas.destroy()
self.init_canvas()
num=self.window.input_num.get()#得到输入框的内容
num2 = self.window.input_num2.get()
#print(num)#输入的内容
#判断是否为数字
try:
a=float(num)
b=float(num2)
except:
messagebox.showerror('错误','请输入数字')
return
self.num=float(num)
self.num2 = float(num2)
if np.abs(self.num)>1000000000000000000000000 or np.abs(self.num2)>1000000000000000000000000:
messagebox.showerror("错误","X_X这个数字太离谱啦！！！")
return
if self.num >=0:
ruler_num=self.use_positive_axis()
else:
ruler_num=self.use_negative_axis()
#插入数字并设置刻度间距
for i in range(-10,11):
if np.abs(self.num)>=1000000000000000000000:
if i%5!=0 and i!=0:
continue
elif np.abs(self.num)>=10000000000000000:
if i%4!=0 and i!=0:
continue
elif np.abs(self.num)>=1000000000:
if i%3!=0 and i!=0:
continue
elif np.abs(self.num)>=100000:
if i%2==0 and i!=0:
continue
self.window.axis_canvas.create_text(440+40*i,220,text=str(i*(10**ruler_num)))
#插入指示箭头
arrowplace=40+(10** (ruler_num+1)+self.num)*800/(10** (ruler_num+1)+10** (ruler_num+1))
#=====================================================================================
if self.num2 >=0:
ruler_num2=self.use_positive_axis2()
else:
ruler_num2=self.use_negative_axis2()
#插入数字并设置刻度间距
for i in range(-10,11):
if i==0:
continue
self.window.axis_canvas.create_text(460,210-20*i,text=str(i*(10**ruler_num2)))
#插入指示箭头
arrowplace2=410-(10** (ruler_num2+1)+self.num2)*400/(10** (ruler_num2+1)+10** (ruler_num2+1))
self.window.axis_canvas.create_line((arrowplace, arrowplace2, arrowplace, 210), arrow=tk.LAST)
self.window.axis_canvas.create_line((arrowplace, arrowplace2, 440, arrowplace2), arrow=tk.LAST)
self.window.axis_canvas.create_oval((arrowplace-5, arrowplace2-5, arrowplace+5, arrowplace2+5),fill='black')
def use_positive_axis(self):
a=0
if self.num==0:
return 1
while True:
if 10**a<=self.num<10** (a+1):
return a
a += 1
def use_negative_axis(self):
a = 0
while True:
if 10**a<= -self.num <10** (a+1):
return a
a+=1
def use_positive_axis2(self):
a=0
if self.num2==0:
return 1
while True:
if 10**a<=self.num2<10** (a+1):
return a
a += 1
def use_negative_axis2(self):
a = 0
while True:
if 10**a<= -self.num2 <10** (a+1):
return a
a+=1
if __name__ == '__main__':#主函数
root = tk.Tk()
root.resizable(False, False)
basedesk(root)
root.mainloop()
