[GRASS5] raster map file format

[Markus Neteler]

Hamish wrote:

>Any thoughts on finally rearranging the raster map storage format soon
>after 6.2 is released? (into $MAPSET/raster/$MAPNAME/cell etc)
>This will break a lot of modules but it needs to happen some time..
>
>Other queued raster format updates could be done at the same time.
> - majorly rewrite the meta-data setup (see previous email)
> - Put LZW compression back in?
> - Start from scratch using netCDF, XML, or some other newfangled system?
>    (Glynn, Frank, Andrea?, et al: How horrible or apt is GRASS's raster
>     format anyway? for a format accessed row by row, is it fairly
>nice?)
>
>This needs someone to do it too of course .. :) as well as necessitate
>bumping us up to GRASS 7.0, FWTIW.
>
>But if we decide to do it, we can break it soon after a release and
>force everyone to fix things as they want their pet module back ;)
>
>thoughts?
>  
>

Yes, let's do the raster layout modification and go for GRASS 7. Other
things to do
- the parameter/flags cleanup (more consistency)
- virtual raster maps via GDAL
- separation of raster lib (into Rast_*() functions) and G_*() libgis

Markus