NAUTY-PLANARG(1) Nauty Manual NAUTY-PLANARG(1) NAME nauty-planarg - test graphs for planarity and find embeddings or ob- structions SYNOPSIS planarg [-v] [-nVq] [-p|-u] [infile [outfile]] DESCRIPTION For each input, write to output if planar. The output file has a header if and only if the input file does. -v Write non-planar graphs instead of planar graphs -V Write report on every input -u Don't write anything, just count -p Write in planar_code if planar (without -p, same format as in- put) -k Follow each non-planar output with an obstruction in sparse6 format (implies -v, incompatible with -p) -n Suppress checking of the result -q Suppress auxiliary information This program permits multiple edges and loops nauty 2.8.6 January 2023 NAUTY-PLANARG(1)
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