Command line

The graphlay layout engine on the command line. It reads JSON and writes JSON or SVG, so any language that can start a process can use it.

cargo install graphlay-cli
echo '{"nodes": [{"size": {"width": 80, "height": 40}}, {"size": {"width": 80, "height": 40}}],
       "edges": [{"source": 0, "target": 1}]}' | graphlay layout --preset process_map --pretty

Add --sketch to layout, reroute or tree to get a plain SVG drawing instead of the layout. To restyle that drawing, print it as a scene with graphlay sketch --scene, edit the JSON and draw it with graphlay svg.

graphlay --help lists the subcommands: layout, reroute, tree, metrics, sketch, fingerprint, svg, presets, options and schema. The JSON formats are those of the graphlay::json module.