def remove_zero_points(self):
        """Removes points with a zero in the z-axis.

        Note
        ----
        This returns nothing and updates the PointCloud in-place.
        """
        points_of_interest = np.where(self.z_coords != 0.0)[0]
        self._data = self.data[:, points_of_interest]
Removes points with a zero in the z-axis.

        Note
        ----
        This returns nothing and updates the PointCloud in-place.