code: function valueToX(value) {
      const
          rect = this.$.getBoundingClientRect(),
          percent = (value - this.min) / (this.max - this.min);
      return rect.width * percent;
  }
docs: Convert a value into X position relative to View.
  
  @this ViewXJS
  @param   {integer} value - Current value.
  @returns {float} X position.