dijkstra-suite

A Dijkstra's algorithm implementation that aims to be simple to use and fast to run

Caution

WIP: this crate is WORK IN PROGRESS and not ready to be used in production

Documentation

Check the documentation with example on docs.rs.

Quick Start

Add dijkstra-suite to your project, running

cargo add dijkstra-suite

or add it to your Cargo.toml file

[dependencies]
dijkstra-suite = "0.1.0-beta.3"

Usage

Create a Graph and run it through dijkstra_path() function providing a starting and an ending node

use dijkstra_suite::dijkstra::dijkstra_path;
use dijkstra_suite::graph::Graph;
use dijkstra_suite::path::Path;
use dijkstra_suite::node::{Node, NodeConnection};

let mut graph: Graph<&str, f32> = Graph::default();
let node_a = Node {
    id: "A",
    weight: 0.0,
    neighbours: vec![
        NodeConnection {
            from: "A",
            to: "B",
            weight: 7.0,
        },
        NodeConnection {
            from: "A",
            to: "E",
            weight: 1.0,
        },
    ],
};

let node_b = Node {
    id: "B",
    weight: 0.0,
    neighbours: vec![
        NodeConnection {
            from: "B",
            to: "A",
            weight: 7.0,
        },
        NodeConnection {
            from: "B",
            to: "C",
            weight: 3.0,
        },
        NodeConnection {
            from: "B",
            to: "E",
            weight: 8.0,
        },
    ],
};

let node_c = Node {
    id: "C",
    weight: 0.0,
    neighbours: vec![
        NodeConnection {
            from: "C",
            to: "B",
            weight: 3.0,
        },
        NodeConnection {
            from: "C",
            to: "D",
            weight: 6.0,
        },
        NodeConnection {
            from: "C",
            to: "E",
            weight: 2.0,
        },
    ],
};

let node_d = Node {
    id: "D",
    weight: 0.0,
    neighbours: vec![
        NodeConnection {
            from: "D",
            to: "C",
            weight: 6.0,
        },
        NodeConnection {
            from: "D",
            to: "E",
            weight: 7.0,
        },
    ],
};

let node_e = Node {
    id: "E",
    weight: 0.0,
    neighbours: vec![
        NodeConnection {
            from: "E",
            to: "A",
            weight: 1.0,
        },
        NodeConnection {
            from: "E",
            to: "B",
            weight: 8.0,
        },
        NodeConnection {
            from: "E",
            to: "C",
            weight: 2.0,
        },
        NodeConnection {
            from: "E",
            to: "D",
            weight: 7.0,
        },
    ],
};

graph.insert(node_a.id, node_a);
graph.insert(node_b.id, node_b);
graph.insert(node_c.id, node_c);
graph.insert(node_d.id, node_d);
graph.insert(node_e.id, node_e);

let result = dijkstra_path(&graph, "B", "D");

let expected_path: Path<&str, f32> = Path {
    weight: 9.0,
    steps: vec!["B", "C", "D"],
};

assert_eq!(result.unwrap(), expected_path)

License

GNU GPL-3

Authors

written with 💛️💙️ by Tanque

• @TheShooter89

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