Function atlas 

pub fn atlas(number: u32) -> IgraphResult<Graph>

Build the number-th graph from Read-Wilson’s An Atlas of Graphs.

number must be in 0..1253. The returned graph is always undirected. See the module docstring for the ordering convention.

Errors

• IgraphError::InvalidArgument — number is outside 0..1253.

Examples

use rust_igraph::atlas;

// 0: the null graph (0 vertices, 0 edges)
let g = atlas(0).unwrap();
assert_eq!((g.vcount(), g.ecount()), (0, 0));

// 3: the single edge K_2
let k2 = atlas(3).unwrap();
assert_eq!((k2.vcount(), k2.ecount()), (2, 1));

// 1252 (last): the complete graph K_7
let k7 = atlas(1252).unwrap();
assert_eq!((k7.vcount(), k7.ecount()), (7, 21));