loops.js
function cut(c, i) {
    var a = adj[i][c[i]]
    a.splice(a.indexOf(c), 1)
  }
function cut(c, i) {
    var a = adj[i][c[i]]
    a.splice(a.indexOf(c), 1)
  }
function cut ( c , i ) { var a = adj [ i ] [ c [ i ] ] a . splice ( a . indexOf ( c ) , 1 ) }
Remove a half edge
Remove a half edge