code: function() {
  		
  		this.nodes = [];
  		this.edges = [];
  		
  		// Extract wires
  		for(var i = 0 ; i < this.layer.wires.length ; i++) {
  			var wire = this.layer.wires[i];
  			this.edges.push([this.layer.containers.indexOf(wire.terminal1.container), this.layer.containers.indexOf(wire.terminal2.container) ]);
  		}	
  		
  	}
docs: Init the default structure