Peter Canter writes:
> > 
> > I have a predefined grid which is divided into cells (rows & columns).
> > What I want to do is to assign the attribute values to cells of the 
> > predefined grid. For each attribute I will create a single map surface.
> > The x and y's of the attribute data will determine which cell gets the value. 
> > The x and y`s provided may not be exactly a 'cell' center but I expect
>   the GIS to assign the attribute value(s) to the cell with a coordinate center   closest to the x & y of the attribute.
> > 
> > Am I missing something in GRASS. Is this easily done? Is it done at all?
> > My biggest problem is getting started, in other words loading the data.
> > I am using simple ascii files as described above. 

It is not too difficult, I think: convert your ASCII data to GRASS 
site_lists format using awk in order to obtain site_lists for all your 
attributes. There should be a program called s.to.rast that converts the 
sites to raster format; maybe someone else can tell you where to find it, 
as it's not in official release I think. You'll probably have to prefix 
your attribute data with a # in order to fill your raster map with the 
attribute values. You could also use s.to.vect (a program in src.contrib) 
followed by v.to.rast.

Good luck!

Philip Verhagen
-- 


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