graph_algo_ptas::data_structure::list_graph

Struct ListGraph

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pub struct ListGraph { /* private fields */ }
Expand description

The structure containing the graphs

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impl ListGraph

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pub fn new() -> ListGraph

Creates a new empty ListGraph

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pub fn from_edges<'a>( edges: impl Iterator<Item = &'a (NodeId, NodeId)>, ) -> ListGraph

Creates a new ListGraph containing the edges and required odes

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pub fn k4() -> ListGraph

Creates a k4 graph

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pub fn from_edges_node_list<'a, 'b>( edges: impl Iterator<Item = &'a (NodeId, NodeId)>, nodes: impl Iterator<Item = &'b &'b [EdgeId]>, ) -> ListGraph

Same as from_edges but with the addition of being able to define the order of the adjacency list for each node

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pub fn add_edge( &mut self, from: NodeId, to: NodeId, after_from: Option<EdgeId>, after_to: Option<EdgeId>, ) -> EdgeId

Adds an edge to the graph If the given nodes do not exist they are created It is the responsibility of the caller of this function to ensure from != to or else this function will panic.

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pub fn remove_edge(&mut self, edge_id: EdgeId)

Removes an edge from the graph

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pub fn node_indexes(&self) -> NodeIndexIter<'_>

Returns an iterator iterating over all indexes of nodes in the graph

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pub fn edge_indexes(&self) -> EdgeIndexIter<'_>

Returns an iterator iterating over all indexes of edges in the graph

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pub fn edge(&self, edge_id: EdgeId) -> Option<(NodeId, NodeId)>

Returns the ids of the nodes adjacent to the given edge

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pub fn edges(&self, node_id: NodeId) -> Option<Vec<EdgeId>>

List the ids of all edges adjacent to the given node

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pub fn neighbors(&self, node_id: NodeId) -> Option<Vec<NodeId>>

Returns the id of all neighbouring nodes to the given node

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pub fn cyclic_incident_succ(&self, edge: EdgeId, node: NodeId) -> Option<EdgeId>

Returns the id of the edge following the given edge in the adjacency list of the given node

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pub fn cyclic_incident_prev(&self, edge: EdgeId, node: NodeId) -> Option<EdgeId>

Returns the id of the edge preceding the given edge in the adjacency list of the given node

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pub fn opposite(&self, node: NodeId, edge: EdgeId) -> Option<NodeId>

Returns the id of the node opposite to the given node on the given edge

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pub fn all_edges(&self) -> Vec<(NodeId, NodeId)>

Returns a vector containing all edges in the graph as a pair containing the id of the nodes the edge is connecting

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pub fn new_vertex(&mut self) -> NodeId

Adds a new vertex to the graph

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pub fn to_pet_graph(&self) -> StableGraph<(), (), Undirected>

Returns the graph as a petgraph StableGraph

Trait Implementations§

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impl Default for ListGraph

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fn default() -> Self

Returns the “default value” for a type. Read more

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