this bug's URL: http://intevation.de/rt/webrt?serial_num=4488
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Subject: v.to.rast: wrong cells rasterised often
Platform: GNU/Linux/x86
grass obtained from: CVS
grass binary for platform: Compiled from Sources
GRASS Version: 2006-05-18
Example:
Grab the testing location:
http://www.biol.uni.wroc.pl/sieczka/udostepnione/grass/vtorast/test.tar.bz2
Then:
enter mapset "vtorast"
g.region test
v.to.rast input=streams output=streams_rast use=val value=1
d.rast.num -f streams_rast grid_color=grey
d.vect streams
See the result:
http://www.biol.uni.wroc.pl/sieczka/udostepnione/grass/vtorast/wrong_cell.png
A *wrong* cell is there in the v.to.rast output. Errors like this are frequent in other parts of streams_rast.
If somebody asks, it is impossible to correct them using r.thin, becasue a correct cell is removed, and the wrong one remains; see:
http://www.biol.uni.wroc.pl/sieczka/udostepnione/grass/vtorast/rthindoesnthelp.png
Maciek
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