@macrostrat/column-components/dist/chroma-js/src/utils/distance.js

React rendering primitives for stratigraphic columns

import Color from "../Color.js";
function distance(a, b, mode = "lab") {
  a = new Color(a);
  b = new Color(b);
  const l1 = a.get(mode);
  const l2 = b.get(mode);
  let sum_sq = 0;
  for (let i in l1) {
    const d = (l1[i] || 0) - (l2[i] || 0);
    sum_sq += d * d;
  }
  return Math.sqrt(sum_sq);
}
export {
  distance as default
};
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