docs: public void drawAsGantt( String varsMatchingThis ) {
  		Vector<String> selectedVariables = new Vector<String>();
  		for ( Variable v : this.getVariables() ) {
  			if ( v.getComponent().contains(varsMatchingThis)) {
  				selectedVariables.add(v.getComponent());
  			}
  		}
  		new PlotActivityNetworkGantt(this, selectedVariables, "Activity Network Gantt");
  	}