Question

有人知道如何在Colab中使鼠标均匀工作吗？

我正在尝试运行此代码，它在PyCharm中运行良好，但是在Colar中，它只是绘制图形并且不响应鼠标事件。我知道动画和交互式剧情可能有些挑剔。如果您有任何有用的资源，请告诉我。

from __future__ import print_function
import matplotlib.pyplot as plt
import numpy as np


class Cursor(object):
    def __init__(self, ax):
        self.ax = ax
        self.lx = ax.axhline(color='k')  # the horiz line
        self.ly = ax.axvline(color='k')  # the vert line

        # text location in axes coords
        self.txt = ax.text(0.7, 0.9, '', transform=ax.transAxes)

    def mouse_move(self, event):
        if not event.inaxes:
            return

        x, y = event.xdata, event.ydata
        # update the line positions
        self.lx.set_ydata(y)
        self.ly.set_xdata(x)

        self.txt.set_text('x=%1.2f, y=%1.2f' % (x, y))
        plt.draw()


class SnaptoCursor(object):

    def __init__(self, ax, x, y):
        self.ax = ax
        self.lx = ax.axhline(color='k')  # the horiz line
        self.ly = ax.axvline(color='k')  # the vert line
        self.x = x
        self.y = y
        self.txt = ax.text(0.7, 0.9, '', transform=ax.transAxes)

    def mouse_move(self, event):

        if not event.inaxes:
            return

        x, y = event.xdata, event.ydata

        indx = np.searchsorted(self.x, [x])[0]
        x = self.x[indx]
        y = self.y[indx]
        self.lx.set_ydata(y)
        self.ly.set_xdata(x)

        self.txt.set_text('x=%1.2f, y=%1.2f' % (x, y))
        print('x=%1.2f, y=%1.2f' % (x, y))
        plt.draw()

t = np.arange(0.0, 1.0, 0.01)
s = np.sin(2*2*np.pi*t)
fig, ax = plt.subplots()

cursor = SnaptoCursor(ax, t, s)
plt.connect('motion_notify_event', cursor.mouse_move)

ax.plot(t, s, 'o')
plt.axis([0, 1, -1, 1])
plt.show()

（在一个单独的注释上，如果您知道其他任何可以共享的Colab图形中的交互式十字线的方式，那真是太棒了）

Google Colab中的鼠标事件

0 个答案: