nauty-pet

Canonical graph labelling.

Leverages nauty and Traces to find canonical labellings for petgraph graphs.

Usage

Version 2.6 or 2.7 of the nauty and Traces library has to be installed first and linked to the same C library as this crate.

Afterwards, add this to your Cargo.toml: toml [dependencies] nauty-pet = "0.4"

Example

```rust use petgraph::graph::UnGraph; use nauty_pet::prelude::*;

// Two different vertex labellings for the tree graph with two edges let g1 = UnGraph::<(), ()>::fromedges([(0, 1), (1, 2)]); let g2 = UnGraph::<(), ()>::fromedges([(0, 1), (0, 2)]);

// There are two equivalent labellings let automorphisminfo = g1.clone().tryintoautom().unwrap(); asserteq!(automorphism_info.grpsize(), 2.);

// The canonical forms are identical let c1 = g1.intocanon(); let c2 = g2.intocanon(); assert!(c1.is_identical(&c2)) ```

License: Apache-2.0