input segments
4/1 1/1 4/1 5/1
1/1 3/1 7/1 3/1

the output
Polyline number 1:
    (4.5:1.5)
    (4.5:3.5)
    (4.5:5.5)

Polyline number 2:
    (1.5:3.5)
    (4.5:3.5)
    (7.5:3.5)


testing sr
Polyline number 1:
    (4.5:1.5)
    (4.5:3.5)
    (4.5:5.5)

Polyline number 2:
    (1.5:3.5)
    (4.5:3.5)
    (7.5:3.5)

