bcomps - biconnected components filter for graphs
] [ -ooutfile
] [ files
decomposes graphs into their biconnected components, printing the
components to standard output.
The following options are supported:
- No output graph is printed. Implies the -v
- Print the underlying block-cutvertex tree.
- Each biconnected component is printed as a separate root
- Prints number of blocks and cutvertices.
- -o outfile
- If specified, each root graph will be written to a
different file with the names derived from outfile. In particular,
if both -o and -x flags are used, then each block is written
to a different file. If outfile does not have a suffix, the nth
block of the ith graph is written to outfile_n_i. However, the 0th
block of the 0th graph is written to outfile.
If outfile has a suffix, i.e., has the form base.sfx, then the
files will have the same name as above, except appended with .sfx.
The block-cutvertex tree of ith graph is written to outfile_n_T, with
an appended suffix if specified.
By default, each input graph is printed, with each block given as a subgraph
whose name is a concatenation of the name of the input graph, the string
"_bcc_" and the number of the block.
The following operand is supported:
- Names of files containing 1 or more graphs in dot format.
If no files operand is specified, the standard input will be
if all the input graphs are biconnected; and
non-zero if any graph has multiple blocks, or any error occurred.
It is possible, though unlikely, that the names used for connected components
and their subgraphs may conflict with existing subgraph names.
Emden R. Gansner <email@example.com>
ccomps(1), gc(1), dot(1), gvpr(1), gvcolor(1), acyclic(1), sccmap(1), tred(1),