ngraph.louvain/demo/lib/getColor.js

Given a graph instance detects communities using the Louvain Method

var colors = [
  '#1f77b4', '#aec7e8',
  '#ff7f0e', '#ffbb78',
  '#2ca02c', '#98df8a',
  '#d62728', '#ff9896',
  '#9467bd', '#c5b0d5',
  '#8c564b', '#c49c94',
  '#e377c2', '#f7b6d2',
  '#7f7f7f', '#c7c7c7',
  '#bcbd22'
];

var lastUsed = 0;
var idToIndex = Object.create(null);

function getColor(id) {
  var idx = idToIndex[id];
  if (idx === undefined) {
    idx = idToIndex[id] = lastUsed;
    lastUsed += 1;
  }
  return colors[idx];
}

module.exports = getColor;