code: function(options) {
        options = options || {};
        var point = options.point ?
          options.point.times($.pixelDensityRatio) :
          this.getCanvasCenter();
        var context = this._getContext(options.useSketch);
  
        context.translate(point.x, 0);
        context.scale(-1, 1);
        context.translate(-point.x, 0);
      }
docs: private