[GRASSLIST:6310] filling nulls in integer raster

[Dylan Beaudette]

Greetings,

i have a raster image that i am hoping to vectorize after a bit of 
generalization with r.reclass.area... however, r.reclass.area leaves nulls in 
the middle of larger areas of equal value:

http://169.237.35.250/~dylan/temp/holes.png

i have tried to fill these holes, with r.fillnulls (via RST interpolation) 
with: 
r.fillnulls in=asp.large out=asp.final smooth=.01 tension=100

and the result looks something like this:

http://169.237.35.250/~dylan/temp/fewer_holes.png


...however, is there anyway to get rid of all the nulls, replacing them with 
the value that is surrounding them?

thanks in advance


-- 
Dylan Beaudette
Soils and Biogeochemistry Graduate Group
University of California at Davis
530.754.7341