[OSRM-talk] Small way neglected

[yvecai]

Actually, as I get way informations from another database, I've already 
set the way osm IDs as name (local name = way:id() in function 
WayHandlers.names), so that should already do the trick, but apparently not.
I've also tried to set weight_precision = 0.1 to avoid rounding to 0, 
but no result.

Regards,
Yves
On 14.12.21 21:37, Daniel Patterson wrote:
> OSRM isn't designed to provide perfect information along the route 
> like that - but it can be hacked to get close.  When I built out the 
> elevation profile feature for skitrails.com <http://skitrails.com>, I 
> used a combination of a DEM in postgis along with the OSRM route 
> geometry to make the elevation profile, so not directly in OSRM itself.
>
> For highlighting tagged difficulty sections, what you could try us 
> using `piste:difficulty` as part of the `name` attribute in OSRM - it 
> _should_ emit a new step for each new name along the path, so if 
> difficulty changes, you'd get a new step at that point.
>
> You would need to remove the appended `piste:difficulty` tag from any 
> name you wanted to display on screen later on though.
>
> daniel
>
> On Tue, Dec 14, 2021 at 10:40 AM Yves <ycai at mailbox.org 
> <mailto:ycai at mailbox.org>> wrote:
>
>     Yes, exactly, I'm playing with OSRM to eventually replace the
>     routing backend at opensnowmap.org <http://opensnowmap.org>
>     This feature provides the user a topo highlighting the various
>     difficulties along the route.
>     Yves - Opensnowmap
>
>     Le 14 décembre 2021 19:13:55 GMT+01:00, Daniel Patterson
>     <daniel at mapbox.com <mailto:daniel at mapbox.com>> a écrit :
>
>         Yves,
>
>           I would say that OSRM's step-by-step instructions are
>         definitely not optimized for nordic ski trails.  The route
>         _geometry_ will be correct, but the steps are primarily
>         designed to look at road class (highway=) and names - none of
>         the piste: tags are considered when generating steps.
>
>           What does the optimal output look like in your opinion?  As
>         a long-time nordic ski racer myself, if I even bothered to use
>         navigation, I'd mostly only be interested in locations where
>         there were intersections.  Are you looking to analyze the
>         various difficulty ratings along the selected route?
>
>         daniel
>
>         On Tue, Dec 14, 2021 at 10:04 AM Yves via OSRM-talk
>         <osrm-talk at openstreetmap.org
>         <mailto:osrm-talk at openstreetmap.org>> wrote:
>
>             Hello,
>             Playing around with OSRM, I figured that smaller ways
>             seems to be coalesced with others to form a single 'step'
>             in the output.
>             I can't find any parameter in the Lua config to change
>             this behaviour (yet).
>             Any hint is appreciated.
>             The use case is a short nordic skiing way with a different
>             piste:difficulty along a much longer route.
>             www.openstreetmap.org/way/103175249
>             <http://www.openstreetmap.org/way/103175249>
>             Regards,
>             Yves
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