Hi
I am importing a vector layer from a shape file as follow, and get the
warning below:
> v.in.ogr dsn=/home/rkrug/Documents/Projects/AlienSpread/data/input/
> layer=fireHistory output=fireHistory --overwrite
WARNING: 703 areas represent more (overlapping) features, because polygons
overlap in input layer(s). Such areas are linked to more than 1
row in attribute table. The number of features for those areas is
stored as category in layer 2
I am aware of that, and I want to create a raster layer with the
number of features overlapping in each location. As I ultimately need
a raster layer, I thought to use the following, but I get the error
message below:
> v.to.rast input=fireHistory layer=2 output=mf use=attr column=category
> --overwrite
ERROR: Unable to get layer info for vector map
Why is that?
Is there another way of getting the number of overlapping features per cell?
Thanks
Rainer
--
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation
Biology, UCT), Dipl. Phys. (Germany)
Plant Conservation Unit
Department of Botany
University of Cape Town
Rondebosch 7701
South Africa
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