[GRASS-user] Re: [GRASSLIST:1140] Re: Qn. on extracting from multiple rasters, data corresponding to vector polygons

[Hamish]

Vishal Mehta wrote:

> 2. My rasters are large, covering south asia (60E-100E, 5N-45N; 0.5
> degree resolution). My vectors are very small (covering small part of
> south-west India). Perhaps this effects the processing time..should i
> mask the rasters and then do the adding of columns?


add in a step after MASK creation:

g.region zoom=MASK res=0.5 -a


leave out the g.mlist sep=space, it uses the whole word!
`g.mlist pat='*'` is enough.



Hamish

ps - new mailing list address: grassuser at grass.itc.it