Method _alloc

js/meshIndex.js:44–51

(cap)

    const target = Math.max(16, Math.ceil(expected / 0.6));
    while (cap < target) cap *= 2;
    this._alloc(cap);
  }

  get size() { return this._size; }

  _alloc(cap) {
    this._cap = cap;
    this._mask = cap - 1;
    this._qx = new Float64Array(cap);
    this._qy = new Float64Array(cap);
    this._qz = new Float64Array(cap);