vivaldi-coordinates

Vivaldi: A Decentralized Network Coordinate System. Originaly description here.This package based on source code of Vuze and required nodejs >= 4.

API

create(data: Float32Array): VivaldiPosition

Create VivaldiPosition instance from raw coordinates. Argument data should have length == 4.

create(data: HeightCoordinates): VivaldiPosition

Create VivaldiPosition instance from HeightCoordinates instance.

create([error: Number]): VivaldiPosition

Create new empty VivaldiPosition instance. Argument error is optional.

update(rtt: Number, p1: VivaldiPosition, p2: VivaldiPosition|HeightCoordinates): bool

Update position p1 with other position p2 and time rtt.

distance(p1: VivaldiPosition, p2: VivaldiPosition|HeightCoordinates): number

Calculate distace between p1 and p2.

equals(p1, p2): bool

Check to equals p1 and p2.

Example

const vivaldi = require('vivaldi-coordinates');
 
var local_pos = vivaldi.create();	// create new empty pos;
var remote_pos;	// position from some remote host
var rtt = 7;	  // ping time to remote host
 
vivaldi.update(rtt, local_pos, remote_pos);	// update local position

License

MIT, 2015 (c) Dmitry Tsvettsikh