Method _from_ax_coords

lib/matplotlib/backend_bases.py:1534–1547

Generate a synthetic event at a given axes coordinate. This method is intended for creating events during testing. The event can be emitted by calling its ``_process()`` method.

(cls, name, ax, xy, key, *args, **kwargs)

    @classmethod
    def _from_ax_coords(cls, name, ax, xy, key, *args, **kwargs):
        """
        Generate a synthetic event at a given axes coordinate.

        This method is intended for creating events during testing.  The event
        can be emitted by calling its ``_process()`` method.
        """
        # Separate from MouseEvent._from_ax_coords instead of being defined in the base
        # class, due to different parameter order in the constructor signature.
        x, y = ax.transData.transform(xy)
        event = cls(name, ax.figure.canvas, key, x, y, *args, **kwargs)
        event.inaxes = ax
        event.xdata, event.ydata = xy  # Force exact xy to avoid fp roundtrip issues.
        return event


# Default callback for key events.