[GraphHopper] Mapsforge map file format compatibility question

[Peter K]

Hi Alex,

no, this is not possible as mapsforge is not a routing data format and
it wasn't intended for it. To create such a compressed format you'll
have to draw the map (only road network) from graphhopper data. Like it
is done in MiniGraphUI, then you'll have to add some more stuff to it.
But additionally it would be a major work to get it fast on Android and
beautiful at all ;)

Also the drawing-speed for large areas will suffer, so, for those
"overview tiles" you'll have to use the mapsforge data.

> so that I only have to upload one map file to my users

Are you hesitating because the disc space? 30MB is not that much even on
a phone these days. And downloading can be zipped -> .ghz

Regards,
Peter.

> Hi ! 
>
> Congratulations for this project it looks very promising. 
>
> I am a mapsforge user and I was wondering how graphhopper plays with
> mapsforge data ? 
>
> If the graphhopper map file a completely different file format than
> the mapsforge one? Or are they compatible. 
> In other words can I reuse a mapsforge map file and feed to
> graphHopper to get my routing ? 
>
>
> If not, is this hackable ? would it be easily possible to modify the
> mapsforge binary format to contain the information needed by
> graphhopper so that I only have to upload one map file to my users, as
> currently the mapsforge file I upload is roughly 30 MB and I'd like to
> avoid uploading another 30 MB for GH.
>
>
> Thanks for your andswers :) 
>
> Alex