Python Matplotlib滑塊小部件未更新

Question

我想使用多個包含數據+ matplotlib滑塊小部件的matplotlib畫布。 問題是，滑塊控件沒有正確更新（貌似事件不會發送鼠標或東西）

這是我有：

import matplotlib 
matplotlib.use('TkAgg') 

from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg 
from matplotlib.figure import Figure 
from matplotlib.widgets import Slider 

class PlotWidget(Tk.Frame): 

    def __init__(self, master): 
     Tk.Frame.__init__(self, master) 
     self.figure = Figure(figsize=(5,4), dpi=75) 
     self.canvas = FigureCanvasTkAgg(self.figure, self) 

     self.frame = self.canvas.get_tk_widget() 
     self.frame.pack(side=Tk.TOP, fill=Tk.BOTH, expand=1) 
     self.canvas.show() 

    def add_slider(self): 
     a = self.figure.add_axes([0.25, 0.1, 0.65, 0.03], axisbg='lightgoldenrodyellow') 
     s = Slider(a, 'range', 0.1, 30.0, valinit=5) 
     self.canvas.show() 



root = Tk.Tk() 

option = 1  

if option == 1 or option = 2: 
    w = PlotWidget(root) 
    w.pack() 
    figure = w.figure 
else: 
    f = Tk.Frame(root, bd = 6, bg='red') 
    figure = matplotlib.figure.Figure(figsize=(5,4), dpi=75) 
    canvas = FigureCanvasTkAgg(figure, f) 
    canvas.get_tk_widget().pack() 
    canvas.show() 
    f.pack() 


if option = 1: 
    w.add_slider() 
else: 
    a = figure.add_axes([0.25, 0.1, 0.65, 0.03], axisbg='lightgoldenrodyellow') 
    s = Slider(a, 'range', 0.1, 30.0, valinit=5) 

Tk.mainloop() 

選項1不起作用其他所有組合做（在測試腳本中，至少在我的應用程序中，當我在另一個位置創建滑塊控件時，它也不起作用。 滑塊對鼠標事件沒有反應.....

我在想什麼？

Answer 1

我必須進行以下更改才能讓腳本在我的機器上運行。

import matplotlib 
from Tkinter import * 
matplotlib.use('TkAgg') 

from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg 
from matplotlib.figure import Figure 
from matplotlib.widgets import Slider 

class PlotWidget(Frame): 

    def __init__(self, master): 
     Frame.__init__(self, master) 
     self.figure = Figure(figsize=(5,4), dpi=75) 
     self.canvas = FigureCanvasTkAgg(self.figure, self) 

     self.frame = self.canvas.get_tk_widget() 
     self.frame.pack(side=TOP, fill=BOTH, expand=1) 
     self.canvas.show() 

    def add_slider(self): 
     a = self.figure.add_axes([0.25, 0.1, 0.65, 0.03], axisbg='lightgoldenrodyellow') 
     s = Slider(a, 'range', 0.1, 30.0, valinit=5) 
     self.canvas.show() 



root = Tk() 

option = 1 

if option == 1 or option == 2: 
    w = PlotWidget(root) 
    w.pack() 
    figure = w.figure 
else: 
    f = Frame(root, bd = 6, bg='red') 
    figure = matplotlib.figure.Figure(figsize=(5,4), dpi=75) 
    canvas = FigureCanvasTkAgg(figure, f) 
    canvas.get_tk_widget().pack() 
    canvas.show() 
    f.pack() 


if option == 1: 
    w.add_slider() 
else: 
    a = figure.add_axes([0.25, 0.1, 0.65, 0.03], axisbg='lightgoldenrodyellow') 
    s = Slider(a, 'range', 0.1, 30.0, valinit=5) 

root.mainloop() 

我相信選項1不起作用，由於其在正在創建的滑塊的範圍。

的例子here在同一範圍內的數字和show命令還創建它。

如果你想滑塊創作進入你有一個函數返回滑塊回功能以外範圍的功能，添加爲add_slider return s的最後一行，然後更改w.add_slider()到s = w.add_slider()

，或者你可以將相關內容存儲在與畫布相同的範圍（類成員）中，例如self.slider = Slider(a, 'range', 0.1, 30.0, valinit=5)。

當option = 1時，這兩種方法都會在鼠標事件上更新滑塊。