我把一个球体的matplotlib图嵌入Tkinter后，无法再旋转它了！

Question

我把一个 matplotlib 画的球体嵌入到了 Tkinter 界面里。但现在有个问题，我在拖动鼠标的时候，无法再旋转这个物体了。有没有人知道这是为什么，或者怎么解决这个问题？

#!/usr/bin/env python
import matplotlib
matplotlib.use('TkAgg')


from mpl_toolkits.mplot3d import  axes3d,Axes3D
import matplotlib.pyplot as plt
from matplotlib import cm
import numpy as np
from numpy import arange, sin, pi
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg, NavigationToolbar2TkAgg
from matplotlib.figure import Figure
from matplotlib.ticker import LinearLocator, FixedLocator, FormatStrFormatter

import Tkinter
import sys

class E(Tkinter.Tk):
    def __init__(self,parent):
        Tkinter.Tk.__init__(self,parent)
        self.parent = parent


        self.protocol("WM_DELETE_WINDOW", self.dest)
        self.main()

    def main(self):
        self.fig = plt.figure()
        self.fig = plt.figure(figsize=(3.5,3.5))
        ax = Axes3D(self.fig)



        u = np.linspace(0, 2 * np.pi, 100)
        v = np.linspace(0, np.pi, 100)

        x = 10 * np.outer(np.cos(u), np.sin(v))
        y = 10 * np.outer(np.sin(u), np.sin(v))
        z = 10 * np.outer(np.ones(np.size(u)), np.cos(v))





        t = ax.plot_surface(x, y, z,  rstride=4, cstride=4,color='lightgreen',linewidth=0)




        self.frame = Tkinter.Frame(self)
        self.frame.pack(padx=15,pady=15)

        self.canvas = FigureCanvasTkAgg(self.fig, master=self.frame)

        self.canvas.get_tk_widget().pack(side='top', fill='both')


        self.canvas._tkcanvas.pack(side='top', fill='both', expand=1)

        self.toolbar = NavigationToolbar2TkAgg( self.canvas, self )
        self.toolbar.update()
        self.toolbar.pack()

        self.btn = Tkinter.Button(self,text='button',command=self.alt)
        self.btn.pack(ipadx=250)

    def alt (self):
        print 9
    def dest(self):
        self.destroy()
        sys.exit()



if __name__ == "__main__":
    app = E(None)
    app.title('Embedding in TK')
    app.mainloop()

Answer 1

在你开始绘图之前，需要先设置好画布。所以把下面这段代码移动到这一行之后：self.canvas._tkcanvas.pack(side='top', fill='both', expand=1)

        #Move this Code 
        ax = Axes3D(self.fig)
        u = np.linspace(0, 2 * np.pi, 100)
        v = np.linspace(0, np.pi, 100)
        x = 10 * np.outer(np.cos(u), np.sin(v))
        y = 10 * np.outer(np.sin(u), np.sin(v))
        z = 10 * np.outer(np.ones(np.size(u)), np.cos(v))
        t = ax.plot_surface(x, y, z,  rstride=4, cstride=4,color='lightgreen',linewidth=0)