[GraphHopper] Shortest vs fastest in CH mode

[Peter]

Hi Martin,

it is:
prepare.chWeighting=shortest
(or any custom weighting you define)

Regards,
Peter

On 17.03.2015 11:58, Martin Sauvage wrote:
> Thanks for your answer Peter.
>
> So what is the script command to import with "shortest" option
> ("graphhopper.sh import *.osm" is apparently for fastest option) ?
>
> Martin
>
> 2015-03-17 11:19 GMT+01:00 Peter <graphhopper at gmx.de
> <mailto:graphhopper at gmx.de>>:
>
>     Hi Martin,
>
>     > but please confirm that prepared graph data (provided by graphhopper.sh import *.osm) is always the
>     same regardless of chosen option (shortest or fastest).
>
>     You'll have to do two different import steps and e.g. maintain two
>     separate GraphHopper instances. That is the drawback of CH, but
>     you can also disable it and use the flexibility mode.
>
>     Kind Regards,
>     Peter
>
>
>     On 16.03.2015 11:45, Martin Sauvage wrote:
>>
>>     Hello,
>>
>>     I'm evaluating shortest / fastest route on Android using GH 0.4:
>>
>>     hopper = new GraphHopper().forMobile();
>>     hopper.setCHWeighting("shortest");
>>     hopper.load(path);
>>
>>     In this example:
>>
>>     https://graphhopper.com/maps/?point=48.064%2C-1.6228&point=48.0757%2C-1.6404&locale=fr-FR&layer=Lyrk
>>
>>     I don't see any difference using "fastest" and "shortest" options
>>     while it seems taking "Rue de la Hallerais" is the shortest.
>>
>>     Peter, yesterday you said "Note: you can either operate as
>>     shortest or fastest for CH, not both. So once you have prepared
>>     the graph (and eg. copied to Android) no change is currently
>>     possible." 
>>
>>     I suppose once I use "hopper.load(path)" I cannot change the
>>     option but please confirm that prepared graph data (provided
>>     by graphhopper.sh import *.osm) is always the same regardless of
>>     chosen option (shortest or fastest).
>>
>
>

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