more efficient axes update computation #1053

    @property
    def x_range(self) -> tuple[float, float]:
        """
        Get or set the x-range currently in view.
        Only valid for orthographic projections of the xy plane.
        Use camera.set_state() to set the camera position for arbitrary projections.
        """
        hw = self.camera.projection_matrix_inverse[0, 0]
        x = self.camera.local.x
        return x - hw, x + hw