docs: function(x, y, xyOnly) {
          var left = x + (xyOnly ? 0 : this.translationParameters.x);
          var top = y + (xyOnly ? 0 : this.translationParameters.y);
          return (left >= -this.MAX_PIXEL && left <= this.MAX_PIXEL &&
                  top >= -this.MAX_PIXEL && top <= this.MAX_PIXEL);
      }