[GRASSLIST:10815] Re: SRTM data transformation

[Wolfgang Zillig]

Hi,

an easier solution would be welcome, as I'm not a GIS specialist at all!

Wolfgang

Hamish schrieb:
>> OK, one final question: are the z-Values also adapted to the new
>> region?  I was told, that in my case the difference should be about
>> 40-50m.
>>     
>
> r.proj acts in 2D only AFAIK. You will want to use the r.to.vect trick:
> export all the cell midpoints coordinates & reproject individually with
> PROJ4's cs2cs software*. Then reimport, and convert back to a raster
> with v.to.rast. I don't know if there is an easier way.
>
> [*] hint: OUT_PROJ="`g.proj -jf`"
>
>
> Hamish
>
>
>