[GRASS-dev] some questions about future development

[Glynn Clements]

Glynn Clements wrote:

> Known issues at present:
> 
> Null support is missing (r.external records any null value reported by
> GDAL, but G_get_raster_row() etc ignore it; I suspect that it will
> treat zero as null due to the absence of a null file).

Null support has been added.

> The code which retrieves the range tells GDAL that approximate values
> will suffice (requiring exact values requires reading the entire map,
> in which case you may as well just use r.in.gdal).

r.external now has a -r flag to tell GDAL to compute the exact range
rather than an approximation.

-- 
Glynn Clements <glynn at gclements.plus.com>