def get_datarect(self):
        """Get the approximate bounding box of the displayed image.

        Returns
        -------
        rect : tuple
            Bounding box in data coordinates in the form of
            ``(x1, y1, x2, y2)``.

        """
        x1, y1, x2, y2 = self._org_x1, self._org_y1, self._org_x2, self._org_y2
        return (x1, y1, x2, y2)
Get the approximate bounding box of the displayed image.

        Returns
        -------
        rect : tuple
            Bounding box in data coordinates in the form of
            ``(x1, y1, x2, y2)``.