Pedro, There is some work-in-progress on the `edge_segment_lookup` branch that can give you some insight. If you enable the `-DDEBUG_GEOMETRY` flag with `make`, then `osrm-extract` and `osrm-prepare` can be instructed (with a new command-line parameter) to dump out some geometry information in GeoJSON format.
`osrm-extract` will dump out turn and stop-sign penalties with coordinates and bearings. `osrm-prepare` will dump out individual segment weights (deciseconds) and speed values used in the final routing graph. It's not super-easy to use, but it gives complete insight into the routing graph in a visual form. You can load the files into QGIS for visualization. daniel > On Nov 11, 2015, at 4:32 PM, Sotorrio, Pedro <[email protected]> wrote: > > Thanks a lot, Daniel! > > —Pedro > > From: Daniel Hofmann <[email protected] <mailto:[email protected]>> > Reply-To: Mailing list to discuss Project OSRM <[email protected] > <mailto:[email protected]>> > Date: Wednesday, November 11, 2015 at 1:26 PM > To: Mailing list to discuss Project OSRM <[email protected] > <mailto:[email protected]>> > Subject: Re: [OSRM-talk] Extended graph output file > > The edge-expanded graph already gets written to disk; this was introduced in > the following commit: > > https://github.com/Project-OSRM/osrm-backend/commit/e45656e5bfb0b61a2859f0c754e66322996f1640 > > <https://github.com/Project-OSRM/osrm-backend/commit/e45656e5bfb0b61a2859f0c754e66322996f1640> > > which is not yet in the latest release, so you have to build from the develop > branch. > > > If you search for ebg you will see related files: > > https://github.com/Project-OSRM/osrm-backend/search?utf8=%E2%9C%93&q=ebg > <https://github.com/Project-OSRM/osrm-backend/search?utf8=%E2%9C%93&q=ebg> > > > Word of caution: the serialization in OSRM is done by just dumping internal > datastructures in binary format. > This is neither a portable between operating systems, compilers or even > standard libraries, nor a stable format, and in particular not intended to be > read from other programs. > You would have to get the data structure layout right, in order to make use > of the ebg file from other programs. > > On Wed, Nov 11, 2015 at 4:15 PM, Sotorrio, Pedro <[email protected] > <mailto:[email protected]>> wrote: >> Hello, >> >> I’m new in OSRM but my understanding is that the graph output file in OSRM >> is a binary file, correct? >> >> Is there a way to write out the edged expanded graph (with turns) to a >> readable file? >> >> Thanks a lot in advance, >> >> Pedro >> >> >> >> _______________________________________________ >> OSRM-talk mailing list >> [email protected] <mailto:[email protected]> >> https://lists.openstreetmap.org/listinfo/osrm-talk >> <https://lists.openstreetmap.org/listinfo/osrm-talk> >> > > _______________________________________________ > OSRM-talk mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/osrm-talk
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