v.to.rast

GRASS GRASS user
1

Hello all!

I have a fairly large vector file containing field boundaries in a
specific county. I am currently trying to convert this vector
file to a raster using v.to.rast. I do the following:

g.region vect=flds.vector res=1
v.to.rast input=flds.vector output=flds.vector.out

After conversion, however, the resulting raster file is *mostly*
empty. With only certain fields in color (and the rest white).
I've *checked* the attributes file of the vector map and it
contains some 902 entries, but when I do a v.stats on my fields
layer, I get:

| Format: Version 4.0 (Level 2 access) (Portable)
|
|
| Number of Lines: 2775
| Number of Nodes: 1865
| Number of Areas: 916 (incomplete)
| Number of Isles: 23 (incomplete)
| Number of Atts : 896

Have you looked at your vector file in v.digit? Under the toolbox
menu you can use o to display unlabeled areas (which won't convert to
raster) and u to display open-area lines (topology of the polygon is
not closed). Your resolution seems low enough that any closed vector
polygon should convert to raster.