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Python实现在matplotlib中两个坐标轴之间画一条直线光标的方法

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Release: 2016-06-06 11:16:37
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本文实例讲述了Python实现在matplotlib中两个坐标轴之间画一条直线光标的方法。分享给大家供大家参考。具体如下:

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()

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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

这个功能有时还是比较有用的

希望本文所述对大家的Python程序设计有所帮助。

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