def plot(self, value=None, pixel=None):
        """
        Plot the ROI
        """
        # DEPRECATED
        import ugali.utils.plotting

        map_roi = np.array(hp.UNSEEN \
                              * np.ones(hp.nside2npix(self.config.params['coords']['nside_pixel'])))
        
        if value is None:
            #map_roi[self.pixels] = ugali.utils.projector.angsep(self.lon, self.lat, self.centers_lon, self.centers_lat)
            map_roi[self.pixels] = 1
            map_roi[self.pixels_annulus] = 0
            map_roi[self.pixels_target] = 2
        elif value is not None and pixel is None:
            map_roi[self.pixels] = value
        elif value is not None and pixel is not None:
            map_roi[pixel] = value
        else:
            logger.error("Can't parse input")
        
        ugali.utils.plotting.zoomedHealpixMap('Region of Interest',
                                              map_roi,
                                              self.lon, self.lat,
                                              self.config.params['coords']['roi_radius'])
Plot the ROI