/**
* Get the distance from one Node to another Node in the graph.
*
* @param from The Node to get the distance from.
* @param to The Node to get the distance to.
* @return The distance between two Nodes
*/
public double getDistance(Node from, Node to) {
if (!distancesCalculated) {
allPairsShortestPath = new AllPairsShortestPath(this);
distancesCalculated = true;
}
return allPairsShortestPath.getDistance(from, to);
}
public static void main(String[] args) {
if (args.length == 0) {
System.out.println(USAGE);
return;
}
File file = new File(args[0]);
if (!file.exists()) {
System.out.println("Unable to locate file: " + args[0] + NEWLINE + USAGE);
return;
}
try {
AllPairsShortestPath program = new AllPairsShortestPath(file);
program.solve();
program.showMenu();
} catch (Exception e) {
System.out.println("Error occured");
}
}
public float[][] getAPSDistancesArr() {
return allPairsShortestPath.getDistancesArr();
}
public HashMap<Node, HashMap<Node, Float>> getAPSDistances() {
return allPairsShortestPath.getDistances();
}
