[GRASS-dev] issue v.to.rast - missing raster labels

[Paulo van Breugel]

Hi devs,

Converting a vector to raster does in some specific cases yields yields 
issues with the labeling. E.g., the following (example from NC dataset) 
results in a layer with each raster cells assigned a category label (the 
name of the municipality):

v.to.rast input=boundary_municp output=A01 use=attr attribute_column=OBJECTID label_column=MB_NAME type=area


Running the following will give a raster in which a portion of the cells 
do not have a label.

v.extract input=boundary_county where="NAME='WAKE'" output=WakeCounty

v.overlay ainput=boundary_municp binput=WakeCounty operator=and output=WakeMunicp olayer=0,1,0

g.region vector=WakeMunicp res=100 -a

v.to.rast input=WakeMunicp output=A02 use=attr attribute_column=OBJECTID label_column=MB_NAME type=area


I also tried:

v.extract input=boundary_municp where="COUNTY='WAKE'" output=WakeMunicp2

g.region vector=WakeMunicp2 res=100 -a

v.to.rast input=WakeMunicp2 output=A03 use=attr attribute_column=OBJECTID label_column=MB_NAME type=area


Same results, some of the raster cells do not get a label. I guess I am 
overlooking something here, but I can't figure out what goes wrong here. 
Any ideas?

Regards

Paulo