docs: public Point getOrigin() {
          if (this.origin == null) {
              double x = MercatorProjection.tileToPixel(this.tileX, this.tileSize);
              double y = MercatorProjection.tileToPixel(this.tileY, this.tileSize);
              this.origin = new Point(x, y);
          }
          return this.origin;
      }