Explaination of the format of shanghai_map.in
numbers of nodes
id0 lat0 lon0
id1 lat1 lon1
...
numbers of edges
node_id0_a node_id1_a
...
sample input
3
0 0 0
1 0 1
2 1 0
3
0 1
1 2
2 0
hint: The sample input describe a triangle.
According to the reference, only highway of
motoway
trunk
primary
secondary
tertiaty
unclassified
residental
motoway_link
trunk_link
primary_link
tertiary_link
road
are selected.
Visit map feature for more details.
see extract_nodes.py