def scatter(self): self.scatter_frame = Frame(self.init_window_name) # 创建一个竖直滚动条 scrollbar = Scrollbar(self.scatter_frame, orient=tk.VERTICAL) scrollbar.pack(side=tk.RIGHT, fill=tk.Y) self.scatter_frame.place(x=10, y=460, width=750, height=310) fig = plt.figure() ax = fig.add_subplot(111) pd.plotting.scatter_matrix(self.df,alpha = 0.3,figsize = (10,10),grid = True,ax = ax) self.scatter_view = FigureCanvasTkAgg(fig,master = self.scatter_frame) self.scatter_view.draw() self.scatter_view.get_tk_widget().pack(side=tk.TOP, fill=tk.BOTH, expand=1) # 将滚动条绑定到FigureCanvasTkAgg上 self.scatter_view.configure(yscrollcommand=scrollbar.set) scrollbar.config(command=self.scatter_view.yview)我想在self.scatter_view画布上加一个滚轮，让图片不要被压缩显示，怎么改代码？

你可以在创建FigureCanvasTkAgg时，将其参数resize设置为True，这样就可以自动调整大小，避免图片被压缩显示。同时，你需要在scatter_frame上添加鼠标滚动事件的绑定，用来处理滚轮事件。

修改后的代码如下：

def scatter(self):
    self.scatter_frame = Frame(self.init_window_name)
    
    # 创建一个竖直滚动条
    scrollbar = Scrollbar(self.scatter_frame, orient=tk.VERTICAL)
    scrollbar.pack(side=tk.RIGHT, fill=tk.Y)
    
    self.scatter_frame.place(x=10, y=460, width=750, height=310)
    
    fig = plt.figure()
    ax = fig.add_subplot(111)
    pd.plotting.scatter_matrix(self.df,alpha = 0.3,figsize = (10,10),grid = True,ax = ax)
    
    # 将resize设置为True
    self.scatter_view = FigureCanvasTkAgg(fig,master = self.scatter_frame, resize=True)
    self.scatter_view.draw()
    self.scatter_view.get_tk_widget().pack(side=tk.TOP, fill=tk.BOTH, expand=1)
    
    # 将滚动条绑定到FigureCanvasTkAgg上
    self.scatter_view.configure(yscrollcommand=scrollbar.set)
    scrollbar.config(command=self.scatter_view.yview)
    
    # 添加鼠标滚动事件的绑定
    self.scatter_view.mpl_connect('scroll_event', self.on_scroll)
    
def on_scroll(self, event):
    # 获取当前滚轮的方向
    if event.button == 'up':
        direction = 1
    elif event.button == 'down':
        direction = -1
    else:
        direction = 0
    
    # 根据滚轮方向调整缩放比例
    scale = 1.1
    if direction:
        x, y = event.x, event.y
        ax = self.scatter_view.figure.axes[0]
        if direction > 0:
            # 放大
            ax.set_xlim(xdata - scale * (xdata - ax.get_xlim()[0]),
                        xdata + scale * (ax.get_xlim()[1] - xdata))
            ax.set_ylim(ydata - scale * (ydata - ax.get_ylim()[0]),
                        ydata + scale * (ax.get_ylim()[1] - ydata))
        else:
            # 缩小
            ax.set_xlim(xdata - scale * (xdata - ax.get_xlim()[0]),
                        xdata + scale * (ax.get_xlim()[1] - xdata))
            ax.set_ylim(ydata - scale * (ydata - ax.get_ylim()[0]),
                        ydata + scale * (ax.get_ylim()[1] - ydata))
        self.scatter_view.draw()