Python Matplotlib滑块小部件未更新
问题描述:
我想使用多个包含数据+ matplotlib滑块小部件的matplotlib画布。 问题是,滑块控件没有正确更新(貌似事件不会发送鼠标或东西)Python Matplotlib滑块小部件未更新
这是我有:
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()
选项1不起作用其他所有组合做(在测试脚本中,至少在我的应用程序中,当我在另一个位置创建滑块控件时,它也不起作用。 滑块对鼠标事件没有反应.....
我在想什么?
答
我必须进行以下更改才能让脚本在我的机器上运行。
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()
我相信选项1不起作用,由于其在正在创建的滑块的范围。
的例子here在同一范围内的数字和show命令还创建它。
如果你想滑块创作进入你有一个函数返回滑块回功能以外范围的功能,添加为add_slider return s
的最后一行,然后更改w.add_slider()
到s = w.add_slider()
,或者你可以将相关内容存储在与画布相同的范围(类成员)中,例如self.slider = Slider(a, 'range', 0.1, 30.0, valinit=5)
。
当option = 1
时,这两种方法都会在鼠标事件上更新滑块。
我知道它必须是简单的东西,但你现在正式成为我的英雄! – Jori 2012-02-18 11:34:35