code: public AreaOfInterest copy() {
          AreaOfInterest aoi = new AreaOfInterest();
          aoi.display = this.display;
          aoi.area = this.area;
          aoi.polygon = this.polygon;
          aoi.style = this.style;
          aoi.renderAsSvg = this.renderAsSvg;
          return aoi;
      }
docs: Make a copy of this Area of Interest.