Trait petgraph::visit::GetAdjacencyMatrix

pub trait GetAdjacencyMatrix: GraphBase {
    type AdjMatrix;

    // Required methods
    fn adjacency_matrix(&self) -> Self::AdjMatrix;
    fn is_adjacent(
        &self,
        matrix: &Self::AdjMatrix,
        a: Self::NodeId,
        b: Self::NodeId,
    ) -> bool;
}

Create or access the adjacency matrix of a graph.

The implementor can either create an adjacency matrix, or it can return a placeholder if it has the needed representation internally.

Required Associated Types

type AdjMatrix

The associated adjacency matrix type

Required Methods

fn adjacency_matrix(&self) -> Self::AdjMatrix

Create the adjacency matrix

fn is_adjacent( &self, matrix: &Self::AdjMatrix, a: Self::NodeId, b: Self::NodeId, ) -> bool

Return true if there is an edge from a to b, false otherwise.

Computes in O(1) time.

Object Safety

This trait is not object safe.

Implementations on Foreign Types

impl<'a, G> GetAdjacencyMatrix for &'a G

where G: GetAdjacencyMatrix,

type AdjMatrix = <G as GetAdjacencyMatrix>::AdjMatrix

fn adjacency_matrix(&self) -> Self::AdjMatrix

fn is_adjacent( &self, matrix: &Self::AdjMatrix, a: Self::NodeId, b: Self::NodeId, ) -> bool

Implementors

impl<'a, G> GetAdjacencyMatrix for Frozen<'a, G>

where G: GetAdjacencyMatrix,

type AdjMatrix = <G as GetAdjacencyMatrix>::AdjMatrix

impl<N, E, Ty> GetAdjacencyMatrix for GraphMap<N, E, Ty>

where N: Copy + Ord + Hash, Ty: EdgeType,

The GraphMap keeps an adjacency matrix internally.

type AdjMatrix = ()

impl<N, E, Ty, Ix> GetAdjacencyMatrix for StableGraph<N, E, Ty, Ix>

where Ty: EdgeType, Ix: IndexType,

The adjacency matrix for Graph is a bitmap that’s computed by .adjacency_matrix().

type AdjMatrix = FixedBitSet

impl<N, E, Ty, Ix> GetAdjacencyMatrix for Graph<N, E, Ty, Ix>

where Ty: EdgeType, Ix: IndexType,

The adjacency matrix for Graph is a bitmap that’s computed by .adjacency_matrix().

type AdjMatrix = FixedBitSet