Number of nodes:	Width : Height :
Incidence Matrix 0 3 5 1 -1 -1 -1 -1 -1 -1 0 -1 4 5 6 -1 -1 -1 -1 -1 0 -1 -1 8 6 -1 -1 -1 -1 6 0 7 9 -1 -1 -1 -1 -1 -1 -1 0 -1 -1 -1 8 -1 -1 -1 -1 -1 0 -1 3 7 -1 -1 -1 -1 -1 1 0 4 -1 -1 -1 -1 -1 -1 -1 -1 0 5 -1 -1 -1 -1 -1 -1 -1 -1 0	Node coordinates 50 200 150 100 150 300 150 200 300 100 350 200 300 300 400 300 500 200
Source:	Destination: