Method boundingBox

src/Op.ts:518–534

* Given an array of rectangles, get a rectangle that bounds all of them. * @param rects an array of (Groups or Iterables ) that represents a set of rectangles * @returns the bounding rectangle as a Group

( rects:Iterable<PtLikeIterable> )

   * @returns the bounding rectangle as a Group
   */
  static boundingBox( rects:Iterable<PtLikeIterable> ):Group {
    let _rects = Util.iterToArray( rects );
    let merged = Util.flatten( _rects, false );
    let min = Pt.make( 2, Number.MAX_VALUE );
    let max = Pt.make( 2, Number.MIN_VALUE );

    // calculate min max in a single pass
    for (let i=0, len=merged.length; i<len; i++) {
      let k = 0;
      for (let m of merged[i]) {
        min[k] = Math.min( min[k], m[k] );
        max[k] = Math.max( max[k], m[k] );
        if (++k >= 2) break;
      }
    }
    return new Group( min, max );
  }


  /**