[mkgmap-dev] Overview map in gmapsupp.img?

Fri Feb 20 18:50:19 GMT 2015

Hi Ralf,

my understanding is that no device supports the overview map.
It is only used on the PC. Why would you want to have it in the gmapsupp?

Gerd

Ralf Kleineisel wrote
> Hi,
> 
> is there a way to include the overview map in the gmapsupp.img without
> having to run mkgmap another time?
> 
> If I have, say, three map tiles and the corresponding ovm files:
> 
> -rw-r--r-- 1 ralf users 13522944 Feb 17 22:55 10000001.img
> -rw-r--r-- 1 ralf users 16841216 Feb 17 22:55 10000002.img
> -rw-r--r-- 1 ralf users 19913728 Feb 17 22:55 10000003.img
> -rw-r--r-- 1 ralf users   768512 Feb 17 22:55 ovm_10000001.img
> -rw-r--r-- 1 ralf users  1009152 Feb 17 22:55 ovm_10000002.img
> -rw-r--r-- 1 ralf users  1336320 Feb 17 22:55 ovm_10000003.img
> 
> and I combine all these into a gmapsupp.img, then the overview map is
> created as a seperate file but not included in the gmapsupp.img:
> 
> $ mkgmap --gmapsupp --overview-mapname=OV --overview-mapnumber=99999999
> 1*img ovm*img
> 
> produces:
> 
> -rw-r--r-- 1 ralf users 50177024 Feb 20 17:04 gmapsupp.img
> -rw-r--r-- 1 ralf users    24064 Feb 20 17:04 OV.img
> -rw-r--r-- 1 ralf users     1132 Feb 20 17:04 OV.tdb
> 
> The overview map is not in the gmapsupp.img:
> 
> $ gmt -i gmapsupp.img
> gmt v0.8.186.801b  CC BY-SA (C) 2011-2014 AP www.gmaptool.eu
> 
> File:           gmapsupp.img, length 50177024
> Header:         20.02.2015 17:04:44, DSKIMG, XOR 00, V 0.00, Ms 0
> Mapset:         OSM street map
> 
> Map              length s-f  CP    prio  PID   FID  name
>  MAKEGMAP MPS       206  1
>  10000001 MPC  13462832  5  1252   25      1  6324  Description
>  10000002 MPC  16766155  5  1252   25      1  6324  Description
>  10000003 MPC  19826659  5  1252   25      1  6324  Description
>  00006324 SRT       932  1
> 
> Data MPS
>  F: PID 1, FID 6324, family name
>  V: OSM map set (0)
> 
> Only after running mkgmap one more time it is included:
> 
> $ mkgmap --gmapsupp --overview-mapname=OV --overview-mapnumber=99999999
> 1*img ovm*img OV.img
> 
> $ gmt -i gmapsupp.img
> gmt v0.8.186.801b  CC BY-SA (C) 2011-2014 AP www.gmaptool.eu
> 
> File:           gmapsupp.img, length 50199552
> Header:         20.02.2015 17:06:25, DSKIMG, XOR 00, V 0.00, Ms 0
> Mapset:         OSM street map
> 
> Map              length s-f  CP    prio  PID   FID  name
>  MAKEGMAP MPS       258  1
>  10000001 MPC  13462832  5  1252   25      1  6324  Description
>  10000002 MPC  16766155  5  1252   25      1  6324  Description
>  10000003 MPC  19826659  5  1252   25      1  6324  Description
>  99999999 MPC     20371  3  1252   25      1  6324  Overview Map
>  00006324 SRT       932  1
> 
> Data MPS
>  F: PID 1, FID 6324, family name
>  V: OSM map set (0)
> 
> It would be very handy to have the overview map in the gmapsupp.img
> after the first run. Is this possible?
> _______________________________________________
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> mkgmap-dev at .org

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