Example of using Steller's GraphNodeSet's graph serialization/deserialization.

GraphNodeSet_example.js

define('node_types', ['steller'], function (S) {
	return {
		sine: function (freq) {
			var osc = this.audioContext.createOscillator();
			osc.frequency.value = freq;
			osc.start(0);
			return S.SoundModel(this, [], [osc]);
		},
		gain: function (multiplier) {
			var gain = this.audioContext.createGain();
			gain.gain.value = multiplier;
			return S.SoundModel(this, [gain], [gain]);
		}
	};
});

// Make a dead simple graph and write it as a JSON string to the console.
// This kind of code may be part of a GUI for connecting and playing
// with the types of nodes defined in 'node_types'.
require(['steller', 'node_types'], function (S, node_types) {
	var AC = new S.AudioContext;
	var gns = new S.GraphNodeSet(AC, node_types);
	var sineOsc = gns.node('sine', 880.0);
	var gain = gns.node('gain', 0.25);
	sineOsc.connect(gain);
	var modelSpec = gns.saveAsModel('oscil', [], [{node: gain}]);
	console.log(JSON.stringify(modelSpec));
	gain.connect(AC.destination);
	// Plays a sine tone at 880Hz and prints -
	// 	{"type":"SoundModel","nodes":[{"id":"1","setup":[{"fn":"node","args":["sine",880]},{"fn":"connect","args":[2]}]},{"id":"2","setup":[{"fn":"node","args":["gain",0.25]}]},{"id":"destination","setup":[]}],"name":"oscil","inputs":[],"outputs":[{"node":2}],"params":[]}
	// on the console. I leave out the connection between the gain and the destination
	// from the captured model because we don't want that connection happening every time
	// an 'oscil' is instantiated.
});

// Loads the dead simple graph printed by the previous module.
// Note that both the loading and saving modules share the
// same 'node_types' definitions.
require(['steller', 'node_types'], function (S, node_types) {
	var AC = new S.AudioContext;
	var gns = new S.GraphNodeSet(AC, node_types);
	gns.loadDefinitions([{"type":"SoundModel","nodes":[{"id":"1","setup":[{"fn":"node","args":["sine",880]},{"fn":"connect","args":[2]}]},{"id":"2","setup":[{"fn":"node","args":["gain",0.25]}]},{"id":"destination","setup":[]}],"name":"oscil","inputs":[],"outputs":[{"node":2}],"params":[]}]);
	var oscil = gns.node('oscil');
	oscil.connect(AC.destination);
	// Plays the same sine tone.
});