el.xAxis.style.left = (screenPosition[0] - (bb.width / 2.0)) + 'px';
          this.el.xAxis.style.top = (screenPosition[1]) + 'px';

          if (first) this.el.xAxis.classList.add('show');
        }

        updateYAxis(first = false) {
          if (this.el.yAxis === undefined) return;
            
          let bb = this.el.yAxis.getBoundingClientRect();
          let scenePosition = new Lore.Math.Vector3f(
            this.min[0], (this.min[1] + this.min[1]) / 2.0, 
            (this.min[2] + this.min