北京哪家网站开发公司好,windows2012系统怎么建设网站,手机网站返回顶部代码,网店设计理念在 Matplotlib 中#xff0c;鼠标右键移动画布的功能通常是通过设置交互模式来实现的#xff0c;例如使用 mpl_connect 方法。以下是一个示例代码#xff0c;展示如何在 Matplotlib 中使用 mpl_connect 方法来实现鼠标右键移动画布的功能#xff1a;
import numpy as np
… 在 Matplotlib 中鼠标右键移动画布的功能通常是通过设置交互模式来实现的例如使用 mpl_connect 方法。以下是一个示例代码展示如何在 Matplotlib 中使用 mpl_connect 方法来实现鼠标右键移动画布的功能
import numpy as np
import matplotlib.pyplot as plt
import matplotlibmatplotlib.use(TkAgg)class PanCanvas:def __init__(self, ax):self.ax axself.press Noneself.x0 Noneself.y0 Noneself.ax.figure.canvas.mpl_connect(button_press_event, self.on_press)self.ax.figure.canvas.mpl_connect(button_release_event, self.on_release)self.ax.figure.canvas.mpl_connect(motion_notify_event, self.on_motion)def on_press(self, event):if event.button 3: # Right mouse buttonself.press event.xdata, event.ydataself.x0 self.ax.get_xlim()self.y0 self.ax.get_ylim()def on_release(self, event):if self.press is not None:self.press Noneself.ax.figure.canvas.draw()def on_motion(self, event):if self.press is None:returnif event.button 3: # Right mouse buttonx_press, y_press self.pressdx event.xdata - x_pressdy event.ydata - y_pressself.ax.set_xlim(self.x0[0] - dx, self.x0[1] - dx)self.ax.set_ylim(self.y0[0] - dy, self.y0[1] - dy)self.ax.figure.canvas.draw()def main():# 创建一个绘图窗口和一个子图fig, ax plt.subplots()ax.set_xlim(0, 10)ax.set_ylim(0, 10)# 绘制一些示例数据x np.linspace(0, 10, 100)y np.sin(x)line, ax.plot(x, y)# 创建 PanCanvas 对象pan_canvas PanCanvas(ax)plt.show()if __name__ __main__:main()
