This component takes a list of lines as input and mutually tests them for intersection. Output-plug “IP” delivers a list of intersection points. “LSS” returns all the line-segments including those which result from mutual intersection. There is a one-to-one correspondence between the list of input lines and the data-tree branches with line-segments at “LSS”. The input-plug “LTol” sets the tolerance length in meter for finding intersections between lines that do not actually intersect. “LTol” is also the minimum length of segments at the ends of lines (e.g. at T-intersections).