Hi Peter,
At small distances we also experience unsuitably long paths drawn due to
various map artefacts that don't represent the on-ground situation fully.
Example: people can cross the road, they don't need to go that far for the
crossing (side question: is there an OSM tag for telling that this road has
"free crossing" all along it and people do not need to go to a specific
point just to cross?). Or, take the nearest entrance to the building - they
don't need to go all around the place from the outside.
We decided to do some post-processing instead of trying to mess with the
router.
Calculate D = Displacement by latitude-longitude pairs (as-the-crow-flies
simple Euclidean geometry calculation)
If D <= 500m, {
If the path given by OSRM is greater than D x 10 (or pick a suitable
multiplier), {
Then junk the path and just plot a dotted line from A to B. Assume
half speed for this portion.
}
}
In your case you may have to divide the path you have into chunks and
evaluate each chunk.
But I have no clue on how to make this business accurate. All the best!
--
Cheers,
Nikhil VJ
https://nikhilvj.co.in
On Thu, Nov 28, 2019 at 7:09 PM Peter Schneider-Kamp via OSRM-talk <
osrm-talk@openstreetmap.org> wrote:
> Hi everyone,
>
>
>
> We are starting to use OSRM in a research project for autonomous drones.
> The drones should normally fly along existing paths (i.e. ways from
> OpenStreetMap). But there are situations where the drone needs to fly
> without a path between two nodes (as it otherwise would have to make a
> detour of many kilometres).
>
>
>
> We have a custom profile that works well for routing along the kind of
> paths we want to route along. But is there any way that we can tell OSRM to
> just go from one node to another close-by node without a path?
>
>
>
> So far the only idea is a bit of a hack: add a new type of path between
> all close-by nodes and add this type of path to the profile (with a lower
> speed, enabling its use but discouraging it).
>
>
>
> Any other ideas?
>
>
>
> Any inputs/ideas/pointers are appreciated!
>
>
>
> Cheers,
>
> Peter
> ___
> OSRM-talk mailing list
> OSRM-talk@openstreetmap.org
> https://lists.openstreetmap.org/listinfo/osrm-talk
>
___
OSRM-talk mailing list
OSRM-talk@openstreetmap.org
https://lists.openstreetmap.org/listinfo/osrm-talk
