Slices

Slice management from annnet.core._Slices.

Use G.slices and the AnnNet slice methods for slice workflows. Direct imports from underscore modules follow the internal API policy.

annnet.core._Slices.SliceManager

Namespace for all slice operations.

Owns the full slice implementation — SliceClass on AnnNet is a thin forwarding shell kept for callers that cannot be updated (e.g. adapters). State (_slices, _current_slice, _default_slice, slice_edge_weights) lives on AnnNet because it is accessed pervasively in core graph methods.

Functions

add_slice

add_slice(slice_id, **attributes)

Create a new empty slice.

Parameters:

Name	Type	Description	Default
slice_id	str		required
**attributes		Slice attributes.	{}

Returns:

Type	Description
str

remove

remove(slice_id)

Remove a non-default slice.

remove_slice

remove_slice(slice_id)

Remove a non-default slice and its per-slice attributes.

Parameters:

Name	Type	Description	Default
slice_id	str		required

Raises:

Type	Description
ValueError	If attempting to remove the internal default slice.
KeyError	If the slice does not exist.

add_edge_to_slice

add_edge_to_slice(lid, eid)

Attach an existing edge to a slice (no weight changes).

Parameters:

Name	Type	Description	Default
lid	str		required
eid	str		required

Raises:

Type	Description
KeyError	If the slice does not exist.

add_edges

add_edges(slice_id, edge_ids)

Attach many existing edges to a slice and include their incident vertices.