_cross_section_2d.py 文件源码

def _connect_callbacks(self):
        """
        Connects all of the callbacks for the motion and click events
        """
        self._disconnect_callbacks()
        self._cur = Cursor(self._im_ax, useblit=True, color='red', linewidth=2)
        self._move_cid = self._fig.canvas.mpl_connect('motion_notify_event',
                                                      self._move_cb)

        self._click_cid = self._fig.canvas.mpl_connect('button_press_event',
                                                       self._click_cb)

        self._clear_cid = self._fig.canvas.mpl_connect('draw_event',
                                                       self._clear)
        self._fig.tight_layout()
        self._fig.canvas.draw_idle()