aequilibrae.project.network.Links#

class aequilibrae.project.network.Links(net)[source]#

Access to the API resources to manipulate the links table in the network

>>> from aequilibrae import Project

>>> proj = Project.from_path("/tmp/test_project")

>>> all_links = proj.network.links

# We can just get one link in specific
>>> link = all_links.get(1)

# We can save changes for all links we have edited so far
>>> all_links.save()

__init__(net)[source]#

Methods

`__init__`(net)
`copy_link`(link_id)	Creates a copy of a link with a new id
`delete`(link_id)	Removes the link with link_id from the project
`extent`()	Queries the extent of the layer included in the model
`get`(link_id)	Get a link from the network by its link_id
`new`()	Creates a new link
`refresh`()	Refreshes all the links in memory
`refresh_fields`()	After adding a field one needs to refresh all the fields recognized by the software
`save`()

Attributes

`data`	Returns all links data as a Pandas DataFrame
`fields`	Returns a FieldEditor class instance to edit the zones table fields and their metadata
`sql`	Query sql for retrieving links

sql = ''#: Query sql for retrieving links

get(link_id: int) → Link[source]#

Get a link from the network by its link_id

It raises an error if link_id does not exist

Arguments:: link_id (int): Id of a link to retrieve
Returns:: link (Link): Link object for requested link_id

new() → Link[source]#

Creates a new link

Returns:: link (Link): A new link object populated only with link_id (not saved in the model yet)

copy_link(link_id: int) → Link[source]#

Creates a copy of a link with a new id

It raises an error if link_id does not exist

Arguments:: link_id (int): Id of the link to copy
Returns:: link (Link): Link object for requested link_id

delete(link_id: int) → None[source]#

Removes the link with link_id from the project

Arguments:: link_id (int): Id of a link to delete

refresh_fields() → None[source]#: After adding a field one needs to refresh all the fields recognized by the software

property data: DataFrame#

Returns all links data as a Pandas DataFrame

Returns:: table (DataFrame): Pandas dataframe with all the links, complete with Geometry

refresh()[source]#: Refreshes all the links in memory

save()[source]#

extent() → Polygon#

Queries the extent of the layer included in the model

Returns:: model extent (Polygon): Shapely polygon with the bounding box of the layer.

property fields: FieldEditor#: Returns a FieldEditor class instance to edit the zones table fields and their metadata