[OSM-dev] open source contribution

[Nils Nolde]

Hi Nikhil & Niharika,

thanks for the suggestion. I'm still a bit conflicted about adding support for TSP tbh.. But I'll re-open the original issue, maybe it's not even that much work. I could be convinced with a proper design suggestion on how to set up a "Optimized" tab in the app.

The one advantage the Valhalla TSP has over other solutions is that it's neatly integrated with all available costing options, whereas e.g. VROOM needs (pretty annoyingly) custom matrices to take full advantage of Valhalla's costing options. And since it's supposed to be a frontend for Valhalla, maybe we should really support it at some point. But also do note, it's not necessarily providing optimal solutions, see https://github.com/valhalla/valhalla/issues/2287.

Map-matching support would be another nice addition, and possibly less work than a TSP frontend. /trace_route would be enough, for reference: https://github.com/gis-ops/valhalla-app/issues/159.

Cheers
Nils

On 26.03.23 17:44, Nikhil VJ wrote:

> Hi Niharika,
>
> Suggestion: Valhalla's Optimized Route service API could use some frontend.
>
> When I had checked https://github.com/valhalla/demos/tree/gh-pages/optimized_route it hadn't worked at my end. (not sure if some issue in the code or just a bug at my end - I didn't dig deeper)
>
> Also the main demo frontend: https://valhalla.openstreetmap.de/
> Which seems to have its source code here: https://github.com/gis-ops/valhalla-app
> .. there too they have not yet added Optimized Route feature from the looks of it.
>
> There was this one request last year: https://github.com/gis-ops/valhalla-app/issues/28
>
> .. and had been turned down by maintainers as being too much work.
>
> So, this is something that an open source contributor can do. Relatively fresh work, so most of the work can happen in new modules/files and won't be at too much risk of clashing with existing codebase.
>
> PS: I'm not involved in maintaining any of this stuff; I am just an end user. So this is only a suggestion.
>
> --
> Cheers,
> Nikhil VJ
> https://nikhilvj.co.in
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