tracktracker/script/output-graph.js

#!/usr/bin/env -S node --experimental-json-modules

import network from "../src/data/network.json";
import color from "color";

console.log("digraph {");
console.log(`graph[\
    layout=neato, \
    mode=ipsep, \
    overlap=ipsep, \
    outputorder=nodesfirst, \
]`);

const stops = new Set();

for (const stop of Object.values(network.stops)) {
    stops.add(stop.properties.node);

    const {node, name, routes} = stop.properties;
    const backgrounds = routes.map(([line]) => network.lines[line].color);
    const font = color(backgrounds[0]).isLight() ? "black" : "white";

    console.log(`${node}[\
        label="${name}", \
        style=striped, \
        fillcolor="${[...new Set(backgrounds)].join(":")}", \
        fontcolor="${font}", \
        shape=box, \
    ]`);
}

const junctions = new Set();

for (const [beginId, begin] of Object.entries(network.navigation)) {
    if (!stops.has(beginId)) {
        junctions.add(beginId);
    }

    for (const endId in begin) {
        if (!stops.has(endId)) {
            junctions.add(endId);
        }
    }
}

for (const junction of junctions) {
    console.log(`${junction}[label="", shape=point]`);
}

for (const [beginId, begin] of Object.entries(network.navigation)) {
    for (const endId in begin) {
        console.log(`${beginId} -> ${endId}[len=2]`);
    }
}

console.log("}");