我编写了这个程序，它使用tkinter gui来使用matplotlib绘制轨道。一切正常，但图表上的工具栏。我在那里但是没有活动。当我将工具栏的东西激活时，程序什么都不做。
这是程序：
import matplotlib as plt
plt.use('TkAgg')
import math as mt
import numpy as np
import tkinter as tk
import pylab as pb
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg, NavigationToolbar2TkAgg
from matplotlib.figure import Figure
#class that creates GUI to take input and fills coresponding arrays
#for a paticular ode method
class Application(tk.Frame):
#initialize tkinter gui
def __init__(self, master):
super(Application,self).__init__(master)
self.grid()
self.GUItrajectory()
#create tkinter gui
def GUItrajectory(self):
"""Creates GUI for solving trajectory problems"""
#create plot
self.f = Figure(figsize=(5,4), dpi=100)
self.a = self.f.add_subplot(111)
self.canvas = FigureCanvasTkAgg(self.f, self)
self.canvas.get_tk_widget().grid(row = 0, column = 5, columnspan = 6, rowspan = 7)
#self.toolbar = NavigationToolbar2TkAgg(self.canvas, self)
#self.toolbar.update()
#self.canvas._tkcanvas.grid(row = 1, column = 5, columnspan = 6, rowspan = 7)
#take input
self.mass1lbl = tk.Label(self, text = "Mass 1 [kg]")
self.mass1lbl.grid(row = 0, column = 0, columnspan = 1)
self.mass1ent = tk.Entry(self)
self.mass1ent.grid(row = 0, column = 1, columnspan = 1, sticky = "e")
self.mass2lbl = tk.Label(self, text = "Mass 2 [kg]")
self.mass2lbl.grid(row = 1, column = 0, columnspan = 1)
self.mass2ent = tk.Entry(self)
self.mass2ent.grid(row = 1, column = 1, columnspan = 1, sticky = "e")
self.seperationlbl = tk.Label(self, text = "Seperation distance [m]")
self.seperationlbl.grid(row = 2, column = 0, columnspan = 1)
self.seperationent = tk.Entry(self)
self.seperationent.grid(row = 2, column = 1, columnspan = 1, sticky = "e")
self.periodlbl = tk.Label(self, text = "Period [hours]")
self.periodlbl.grid(row = 3, column = 0, columnspan = 1)
self.periodent = tk.Entry(self)
self.periodent.grid(row = 3, column = 1, columnspan = 1, sticky = "e")
#submit button to retrieve input values
self.btn0 = tk.Button(self, text = "Submit")
self.btn0.grid(row = 4, column = 1, columnspan = 1)
self.btn0.bind('<Button-1>',self.submit)
self.btn3 = tk.Button(self, text = "Calculate Orbit")
self.btn3.grid(row = 5, column = 1, columnspan = 2)
self.btn3.bind('<Button-1>', self.btn3array)
def submit(self, parameters):
"""retreives inputs from GUI"""
m1 = float(self.mass1ent.get())
m2 = float(self.mass2ent.get())
r0 = float(self.seperationent.get())
period = float(self.periodent.get())
dr0 = 0
G = 8.64929e-4
mu = m1*m2/(m1+m2)
theta0 = 0
dtheta0 = (2)*mt.pi*pow(period,-1)
l = mu*pow(r0,2)*dtheta0
self.parameters = [G, mu, r0, dr0, theta0, dtheta0, l, period, m2, m1]
def btn3array(self, parameters):
"""does lots of stuff, probably to much"""
parameters = self.parameters
G = parameters[0]
mu = parameters[1]
r0 = parameters[2]
dr0 = parameters[3]
theta0 = parameters[4]
dtheta0 = parameters[5]
l = parameters[6]
period = parameters[7]
m1 = parameters[8]
m2 = parameters[9]
#time(global)
ti = 0
tf = period
dt = .1
t = np.arange(ti, tf, dt)
r = []
dr = []
theta = []
dtheta = []
x = []
y = []
r.append(r0)
dr.append(dr0)
theta.append(theta0)
dtheta.append(dtheta0)
def orbit101(r,dr,mu,G,M,m,l):
"""equation for orbit"""
dr0=dr
dr1=(pow(l,2)/(pow(mu,2)*pow(r,3)))-((G*m1*m2)/(mu*(pow(r,2))))
dr=[dr0,dr1]
return dr
def rk4(x, v, dt, mu, G, m1, m2, l):
"""Returns final (position, velocity) tuple after time dt has passed."""
x1 = x
v1 = v
f1 = orbit101(x1, v1, mu, G, m1, m2, l)
a1 = f1[1]
x2 = x + 0.5*v1*dt
v2 = v + 0.5*a1*dt
f2 = orbit101(x2, v2, mu, G, m1, m2, l)
a2 = f2[1]
x3 = x + 0.5*v2*dt
v3 = v + 0.5*a2*dt
f3 = orbit101(x3, v3, mu, G, m1, m2, l)
a3 = f3[1]
x4 = x + v3*dt
v4 = v + a3*dt
f4 = orbit101(x4, v4, mu, G, m1, m2, l)
a4 = f4[1]
xf = x + (dt/6.0)*(v1 + 2*v2 + 2*v3 + v4)
vf = v + (dt/6.0)*(a1 + 2*a2 + 2*a3 + a4)
return xf, vf
for i in range(0,len(t)-1):
g = orbit101(r[i], dr[i], mu,G, m1, m2,l)
v = g[0]
a = g[1]
h = rk4(r[i], v, dt, mu, G, m1, m2, l)
p = h[0]
v = h[1]
r.append(p)
dr.append(v)
dtheta.append(l/(mu*pow(p,2)))
T = theta[i]+dtheta[i]*dt
theta.append(T)
x.append(p*mt.cos(T))
y.append(p*mt.sin(T))
self.a.plot(x,y)
self.canvas.draw()
#Main
root = tk.Tk()
root.title("BINARY ORBIT CALCULATOR")
root.geometry("750x550")
Application(root)
root.mainloop()