//for testing purposes
        //private SimpleSegmentSetMutualIntersector mci;

        /// <summary>
        /// Creates an intersection finder against a given set of segment strings.
        /// </summary>
        /// <param name="baseSegStrings">The segment strings to search for intersections</param>
        public FastSegmentSetIntersectionFinder(IEnumerable <ISegmentString> baseSegStrings)
        {
            _segSetMutInt = new MCIndexSegmentSetMutualIntersector(baseSegStrings);
        }
 //for testing purposes
 //private SimpleSegmentSetMutualIntersector mci;
 /// <summary>
 /// Creates an intersection finder against a given set of segment strings.
 /// </summary>
 /// <param name="baseSegStrings">The segment strings to search for intersections</param>
 public FastSegmentSetIntersectionFinder(IEnumerable<ISegmentString> baseSegStrings)
 {
     _segSetMutInt = new MCIndexSegmentSetMutualIntersector(baseSegStrings);
 }