[Digikam-users] GPS - other maps than worldmap.jpg?

Gilles Caulier caulier.gilles at kdemail.net
Wed Sep 6 13:26:00 BST 2006

Le Mercredi 6 Septembre 2006 14:16, Arnd Baecker a écrit :
> Hi,
> the new GPS view in digikam svn is very nice.
> Is there a way to add user-supplied maps?

not yet.

> This would require to have a .jpg (etc.) image of a map
> together with corresponding geographical information.
> One approch would be to provide the geographical information
> is  to use the "world file format",
> see e.g.
> http://www.gpsphone-forums.com/showthread.php?p=38
> http://www.nps.gov/gis/av3_online/documents/section7/docs/section7_pg3.html
> To create maps with geographical information
> the section "Georeferencing"
> http://www.gdf-hannover.de/lit_html/grass60_v1.2_en/node31.html
> in the GRASS documentation seems helpful.
> Another option to create those maps is `Karto`
> which allows to calibrate a scanned map with some
> known geo-points (Lambert, UTM, etc.).
> http://freshmeat.net/projects/karto/
> Has anyone already tried something in this direction?

Perhaps Gerhard, not me because no more free time (:=)))

> Best, Arnd
> P.S.: Of course there are a couple problems to be solved, like
> - selection of the presently shown map:
>   I.e., from what zoom level on does one switch
>   to a more detailed map (if available)?
> - switching from one map to another if there is partial overlap
>   (or how to blend them together?)
> - open source/free georeferenced maps seem to be rare.
> But maybe for a start one could just allow the user
> to select from a list of maps and just display that one.
> P.P.S.: This GPS stuff opens cans of worms: for example
> associating a GPS track with a folder or set of images
> and display of the track in the corresponding map would be cool.

Please report all your wishes in B.K.O at this place :


and there is this file too :



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