matplotlib代码位于http://matplotlib.sourceforge.net/examples/animation/strip_chart_demo.html
我想在我的tkinter GUI中嵌入此代码,我该怎么办?正如它所说的“”“这个例子使用了gtk,但并不依赖于它。它只是使用空闲处理程序来触发事件。你可以将它插入支持动画的不同GUI(GTKAgg, TkAgg ,WXAgg)并使用 你的工具包空闲/定时器功能。“”“
TkAgg中的空闲/定时器功能是什么?
答案 0 :(得分:2)
这可能是也可能不是你想要的:
import matplotlib
matplotlib.use('TkAgg')
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg, NavigationToolbar2TkAgg
from matplotlib.figure import Figure
from matplotlib.lines import Line2D
import numpy as np
try:
import Tkinter as Tk
except ImportError:
import tkinter as Tk
class Scope:
def __init__(self, ax, maxt=10, dt=0.01):
self.ax = ax
self.canvas = ax.figure.canvas
self.dt = dt
self.maxt = maxt
self.tdata = [0]
self.ydata = [0]
self.line = Line2D(self.tdata, self.ydata, animated=True)
self.ax.add_line(self.line)
self.background = None
self.canvas.mpl_connect('draw_event', self.update_background)
self.ax.set_ylim(-.1, 1.1)
self.ax.set_xlim(0, self.maxt)
def update_background(self, event):
self.background = self.canvas.copy_from_bbox(self.ax.bbox)
def emitter(self, p=0.01):
'return a random value with probability p, else 0'
v = np.random.rand(1)
if v>p: return 0.
else: return np.random.rand(1)
def update_view(self, *args):
if self.background is None: return True
y = self.emitter()
lastt = self.tdata[-1]
if lastt>self.tdata[0]+self.maxt:
self.tdata = [self.tdata[-1]]
self.ydata = [self.ydata[-1]]
self.ax.set_xlim(self.tdata[0], self.tdata[0]+self.maxt)
self.ax.figure.canvas.draw()
self.canvas.restore_region(self.background)
t = self.tdata[-1] + self.dt
self.tdata.append(t)
self.ydata.append(y)
self.line.set_data(self.tdata, self.ydata)
self.ax.draw_artist(self.line)
self.canvas.blit(self.ax.bbox)
self.canvas.get_tk_widget().after(25, self.update_view) # ***important
return True
root = Tk.Tk()
f = Figure()
ax = f.add_subplot(111)
canvas = FigureCanvasTkAgg(f, master=root)
canvas.get_tk_widget().pack(side=Tk.TOP, fill=Tk.BOTH, expand=1)
canvas.show()
toolbar = NavigationToolbar2TkAgg( canvas, root )
toolbar.pack(side=Tk.TOP, fill=Tk.BOTH, expand=1)
toolbar.update()
button = Tk.Button(master=root, text='Quit', command=root.destroy)
button.pack(side=Tk.BOTTOM)
scope = Scope(ax)
root.after(50, scope.update_view)
root.mainloop()