如何在matplotlib中两个坐标轴之间画一条直线光标

看看下面的例子和效果吧# -*- coding: utf-8 -*-from matplotlib.widgets import MultiCursorfrom pylab import figure, show, npt = np.arange(0.0, 2.0, 0.01)s1 = np.sin(2*np.pi*t)s2 = np.sin(4*np.pi*t)

一懒百邪生

10924人浏览 · 2012-09-22 23:09:41

一懒百邪生 · 2012-09-22 23:09:41 发布

看看下面的例子和效果吧

# -*- coding: utf-8 -*-

from matplotlib.widgets import MultiCursor
from pylab import figure, show, np

t = np.arange(0.0, 2.0, 0.01)
s1 = np.sin(2*np.pi*t)
s2 = np.sin(4*np.pi*t)
fig = figure()
ax1 = fig.add_subplot(211)
ax1.plot(t, s1)


ax2 = fig.add_subplot(212, sharex=ax1)
ax2.plot(t, s2)

multi = MultiCursor(fig.canvas, (ax1, ax2), color='r', lw=1)
show()

下面是图形效果,看随着光标的移动,在两个图之间会画一条竖线