azlen

/*
 * credit to Dhrumil Shah (@wandcrafting) and Robert Haisfield (@RobertHaisfield)
 * for the original concept which was part of their RoamGames submission
 * and can be found at: https://www.figma.com/file/5shwLdUCHxSaPNEO7pazbe/
 *
 */

/* ======= OPTIONS ======== */
/* note: if you change these, reload the page to see the effect */

azlen

const N = require('numeric');

// centroid
// :: returns mean ~vector~ of m-dimensional vectors in matrix
// A = N x m matrix
function centroid(A) {
	return N.div( A.reduce((a,b) => N.add(a,b), [0, 0]), A.length);
}

// kabsch