Expand description

Implements the dot GraphWalker trait for LinkGraph to allow dot creation

use std::fs::File;
use graph_algo_ptas::data_structure::link_graph::LinkGraph;

let g = LinkGraph::new(); // the graph to render
let mut o = File::create("circle.dot").unwrap(); // or any implementation std::io::Write
dot::render(&g, &mut o).unwrap();