def get_arrays(self, type_img):
        ''' Return arrays the region of interest

        Args:
            type_img (str): Either lola or wac.

        Returns:
            A tupple of three arrays ``(X,Y,Z)`` with ``X`` contains the
            longitudes, ``Y`` contains the latitude and ``Z`` the values
            extracted for the region of interest.

        Note:
            The argument has to be either lola or wac. Note case sensitive.
            All return arrays have the same size.

            All coordinates are in degree.
        '''

        if type_img.lower() == 'lola':
            return LolaMap(self.ppdlola, *self.window, path_pdsfile=self.path_pdsfiles).image()
        elif type_img.lower() == 'wac':
            return WacMap(self.ppdwac, *self.window, path_pdsfile=self.path_pdsfiles).image()
        else:
            raise ValueError('The img type has to be either "Lola" or "Wac"')
Return arrays the region of interest

        Args:
            type_img (str): Either lola or wac.

        Returns:
            A tupple of three arrays ``(X,Y,Z)`` with ``X`` contains the
            longitudes, ``Y`` contains the latitude and ``Z`` the values
            extracted for the region of interest.

        Note:
            The argument has to be either lola or wac. Note case sensitive.
            All return arrays have the same size.

            All coordinates are in degree.