public GraphvizFormatter(ConnectionCosts costs) {this.costs = costs;this.bestPathMap = new HashMap<>();sb.append(formatHeader());sb.append("  init [style=invis]\n");sb.append("  init -> 0.0 [label=\"" + BOS_LABEL + "\"]\n");}

public GraphvizFormatter ( ConnectionCosts costs ) { this . costs = costs ; this . bestPathMap = new HashMap < > ( ) ; sb . append ( formatHeader ( ) ) ; sb . append ( "  init [style=invis]\n" ) ; sb . append ( "  init -> 0.0 [label=\"" + BOS_LABEL + "\"]\n" ) ; }
public GraphvizFormatter(ConnectionCosts costs){this.costs = costs;this.bestPathMap = new Dictionary<string, string>();sb.Append(FormatHeader());sb.Append("  init [style=invis]\n");sb.Append("  init -> 0.0 [label=\"" + BOS_LABEL + "\"]\n");}
