[GRASSLIST:2923] s.to.rast help

[Kevin Slover]

I am having some difficulties in getting s.to.rast to produce a raster. 
The problem that I am having is as follows:
1.  Using s.to.rast, I have opted for 3 cells to surround sites.  The
data is fairly largly spaced apart, ~500m or so.  My cell size is right
now 100m ( I have changed it to different values, but the same result).
The attached image is what is produced (it is better explained via image
than for me to try to explain it...) In the image, the white spaces are
the exact locations where the sites fall...
2.  Attempting to fill in what appear to be null spaces, I use
r.fillnulls.  However, the same image is produced.

I have tried several other modules, but none have worked.  Any ideas on
what I might be doing wrong??  
Thanks....
-- 
        LTJG Kevin Slover,NOAA   GIS
Specialist/Meteorologist/Oceanographer 
              Tropical Prediction Center/National Hurricane Center
                    11691 SW 17th Street Miami FL 33165
                 Work: (305) 229-4456 Fax : (305) 553-1264
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