CatalogBase

class CatalogBase

Bases: object

A simple catalog of sources

constructor Initialized without any source.

Methods Summary

add_from_catalog(other_catalog)	add to this catalog the sources from the other catalog
add_src(info_src)	add a source to the catalog
get_catalog()	return the table of the catalog
get_nb_element()	return the number of sources in the catalog
get_row_with_name(name)
plot_on_sphere([p_title, show, save])	plot the sources on a sphere
read_catalog(name_file)	init the sources table from a fits file
remove_src(p_name)	remove a source from the catalog
save_catalog(name_file)	write the catalog table into a fits file

Methods Documentation

add_from_catalog(other_catalog)

add to this catalog the sources from the other catalog

if metadata from the catalogs do not match, an error is raised

Parameters:other_catalog (CatalogBase) – catalog from sources are added

add_src(info_src)

add a source to the catalog

‘elev’,’dir’,’intensity’,’name’

Parameters:info_src ([ float, float, float, string ]) – [‘elev’or’ra’,’dir’or’dec’,’intensity’,’name’]

get_catalog()

return the table of the catalog

Retunr:table of the catalog Return type:astropy.table.Table

get_nb_element()

return the number of sources in the catalog

The number of sources is computed from the ‘name’ column

Returns:number of sources in the catalog Return type:int

get_row_with_name(name)

plot_on_sphere(p_title=None, show=True, save=None)

plot the sources on a sphere

Warning

self.name_file_cat must be manually set

Parameters:

• p_title (string) – title of the plot. Default=None
• show (bool) – show the plot. Default=True.
• save (string) – PATH/name of the file to save in. If None, no saving. Default=None.

read_catalog(name_file)

init the sources table from a fits file

If there already are sources in the catalog, there are deleted.

The file must be a fits file with a table data

Parameters:name_file (string) – PATH/name of the file to read

remove_src(p_name)

remove a source from the catalog

Parameters:p_name (string) – name of source to remove

save_catalog(name_file)

write the catalog table into a fits file

If the file already exists, it is overwrite.

Parameters:name_file (string) – PATH/name of the file to save into