[OSRM-talk] Making progress on dumping pgRouting tables to OSRM
Stephen Woodbridge
woodbri at swoodbridge.com
Wed Nov 13 17:04:47 UTC 2013
Hi Dennis, Emil,
I have made some progress reverse engineering the current file formats
and have been able to successfully extract a pgRouting topology into the
"current" OSRM normalized data files and run osrm-prepare on that.
That said, I have not tried to run routes on this which I will do at
some point.
I am still not clear on how restrictions are defined. The only
description that I can find is the out dated description in:
https://github.com/DennisOSRM/Project-OSRM/wiki/OSRM-normalized-file-format
Can someone please help me with the restrictions definition:
If I have the following graph:
nodes: a, b, c, d
edges: ab, bc, db
a----b-----c
|
|
d
ab, bc, and db are all two way
and there is no right turn from db to bc
Then, should the restriction as defined in the file be:
b, d, c, forbidden, 7F 00 00
where:
b is the via-node
d is the from-node
c is the to-node
and the records should then be sorted by edge_id of
EDGE[via-node, to-node].
Is this correct?
I'm happy to create an updated reference page for the normalized file
format once I get this all sortted out and working.
Thanks,
-Steve
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