def generateCatalog(wcs, mode='automatic', catalog=None,
                    src_find_filters=None, **kwargs):
    """ Function which determines what type of catalog object needs to be
    instantiated based on what type of source selection algorithm the user
    specified.

    Parameters
    ----------
    wcs : obj
        WCS object generated by STWCS or PyWCS

    catalog : str or ndarray
        Filename of existing catalog or ndarray of image for generation of
        source catalog.

    kwargs : dict
        Parameters needed to interpret source catalog from input catalog
        with `findmode` being required.

    Returns
    -------
    catalog : obj
        A Catalog-based class instance for keeping track of WCS and
        associated source catalog

    """
    if not isinstance(catalog,Catalog):
        if mode == 'automatic': # if an array is provided as the source
            # Create a new catalog directly from the image
            catalog = ImageCatalog(wcs,catalog,src_find_filters,**kwargs)
        else: # a catalog file was provided as the catalog source
            catalog = UserCatalog(wcs,catalog,**kwargs)

    return catalog
def generateCatalog ( wcs , mode = 'automatic' , catalog = None , src_find_filters = None , ** kwargs ) : if not isinstance ( catalog , Catalog ) : if mode == 'automatic' : catalog = ImageCatalog ( wcs , catalog , src_find_filters , ** kwargs ) else : catalog = UserCatalog ( wcs , catalog , ** kwargs ) return catalog
Function which determines what type of catalog object needs to be
    instantiated based on what type of source selection algorithm the user
    specified.

    Parameters
    ----------
    wcs : obj
        WCS object generated by STWCS or PyWCS

    catalog : str or ndarray
        Filename of existing catalog or ndarray of image for generation of
        source catalog.

    kwargs : dict
        Parameters needed to interpret source catalog from input catalog
        with `findmode` being required.

    Returns
    -------
    catalog : obj
        A Catalog-based class instance for keeping track of WCS and
        associated source catalog