Graph I/O¶
Graphina supports multiple formats for saving and loading graphs, facilitating data interchange and persistence.
Supported Formats¶
| Format | Read | Write | Best For |
|---|---|---|---|
| Edge List | Yes | Yes | Simple, text-based data exchange. |
| Adjacency List | Yes | Yes | Compact text representation. |
| JSON | Yes | Yes | Web applications and detailed attribute storage. |
| Binary | Yes | Yes | High-performance storage for large graphs. |
| GraphML | No | Yes | Interoperability with Gephi, Cytoscape, etc. |
Text Formats¶
Edge List¶
Reads/Writes a list of edges, one per line.
use graphina::core::types::Graph;
use graphina::core::io::{read_edge_list, write_edge_list};
// Save
write_edge_list(&graph, "graph.txt", " ").unwrap();
// Load (Node type i32, Edge weight f64)
let g: Graph<i32, f64> = read_edge_list("graph.txt", " ").unwrap();
Adjacency List¶
Reads/Writes an adjacency list format (Node Neighbor1 Neighbor2 ...).
use graphina::core::io::{read_adjacency_list, write_adjacency_list};
write_adjacency_list(&graph, "adj.txt").unwrap();
let g: Graph<i32, f64> = read_adjacency_list("adj.txt").unwrap();
Serialization¶
Graphina uses serde for serialization.
JSON¶
use graphina::core::serialization::{save_json,load_json};
// Save
save_json(&graph, "graph.json").unwrap();
// Load
let g: Graph<String, f64> = load_json("graph.json").unwrap();
Binary (bincode)¶
Compact and fast binary format.
use graphina::core::serialization::{save_binary, load_binary};
save_binary(&graph, "graph.bin").unwrap();
let g: Graph<i32, f64> = load_binary("graph.bin").unwrap();
GraphML (Export Only)¶
GraphML is standard for graph visualization tools.