This is useful if a large number of VCG specifications must be converted into PostScript or bitmap file by a batch job. Time limits can be specified for the layout. If the time limit is exceeded, the tool switches into the fastest and ugliest layout mode. The VCG tool is not a graph editor. It is intended to visualize large graphs that are automatically generated by programs, e.g. debuggers of data structures.
Speed is always the first priority.
3983 edges consists of 21694 internal nodes and 23540 internal edge segments. The times include time for loading, layouting and displaying. The layout algorithm can be controlled in different ways. There are 13 basic layout methods, including a specialized version for trees, and 4 variants of crossing reduction, and various optional optimization methods. Further, the priorities of edges and the number of layout iterations may be set to influence the layout.