| planarity(1) | General Commands Manual | planarity(1) |
NAME¶
planarity - The Edge Addition Planarity Suite
SYNOPSIS¶
planarity [-q] [-h|-help] [-i|-info] [-r] [-s] [-rm] [-rn]
DESCRIPTION¶
Invokes the Edge Addition Planarity Suite commandline tool.
Without argument, the tool presents a menu-driven interactive interface.
When used in batch mode, the tool returns 0 for a planar graph, 1 for a nonplanar graph and -1 on error.
OPTIONS¶
FEATURES¶
Features in batch mode.
- -r C K N
- Run the C command (see below) on K random graphs with N vertices
- -s C I O [O2]
- Run the C command (see below) on a specific graph given in the I input file, with output in the primary O file and complementary information in the secondary O2 file.
- -rm N O [O2]
- Compute a maximal planar random graph on N vertices with output in the primary O file and optionally the chosen graph in the O2 file.
- -rn N O [O2]
- Compute a nonplanar random graph (maximal planar and an edge) on N vertices with output in the primary O file and optionally the chosen graph in the O2 file.
COMMANDS¶
Determine which algorithm implementation to run
- -p
- Planar embedding and Kuratowski subgraph isolation
- -d
- Planar graph drawing by visibility representation
- -o
- Outerplanar embedding and obstruction isolation
- -2
- Search for subgraph homeomorphic to K_{2,3}
- -3
- Search for subgraph homeomorphic to K_{3,3}
- -4
- Search for subgraph homeomorphic to K_4
- -a
- All of the above
EXAMPLES¶
- planarity -s -q -p infile.txt embedding.out [obstruction.out]
- Process infile.txt in quiet mode (-q), putting planar embedding in embedding.out or (optionally) a Kuratowski subgraph in Obstruction.out Process returns 0=planar, 1=nonplanar, -1=error
- planarity -s -q -d infile.txt embedding.out [drawing.out]
- If graph in infile.txt is planar, then put embedding in embedding.out and (optionally) an ASCII art drawing in drawing.out Process returns 0=planar, 1=nonplanar, -1=error
SEE ALSO¶
planarity -h -menu for more information.