An array of sites, members of a
family (an instance of
SiteFamily) – The ‘type’ of the sites.
tags (a sequence of python objects) – Sequence of unique identifiers of the sites within the site array family, typically vectors of integers.
ValueError – If
tags are not proper tags for
index(value[, start[, stop]]) → integer – return first index of value.[source]¶
Raises ValueError if the value is not present.
Supporting start and stop arguments is optional, but recommended.
Real space position of the site.
This relies on
family having a
pos method (see