Hello All:
I have a question regarding Tiger Line data and import into GRASS. I
downloaded the data from the Census website for King County, WA and
unzipped it into directory. I managed to get the data imported into
GRASS with the following commands:
v.in.tig.basic t1=TGR53033.RT1 t2=TGR53033.RT2 out=king spheroid=grs80
v.support king
(I moved state27 to state27.bak and copied state83 to state27 in grass/bin)
I was then able to view the area and I was able to zoom in and out
just fine; however, when I go to view the properties of a vector
(v.what.vector) it gives me the following:
Area - Category <not tagged>
Size - Sq Meters: 0.000 Hectares: 0.000
Acres: 0.000 Sq Miles: 0.0000
-122.33474805(E) 47.64248926(N)
king in u-district Line - Category 186583447
Area - Category <not tagged>
Size - Sq Meters: 0.000 Hectares: 0.000
Acres: 0.000 Sq Miles: 0.0000
Now, I have a couple questions:
1) Did I import the data correctly and what are all of those other
files that came from Tiger (file names follow)?
TGR53033.RT3 - TGR53033.RT9
TGR53033.RTA, TGR53033.RTC, TGR53033.RTH, TGR53033.RTI,
TGR53033.RTP, TGR53033.RTR, TGR53033.RTS, TGR53033.RTZ
2) Is it possible to label the vectors (put names on the roads)?
3) Can I divide the 'king' vector data that I have created into
different layers based on category when the categories don't seem to
be working? I believe road and tract data is included in the Tiger
data, both of which I need, but I can't make out what's what given
that all of the lines are the same color.
I appreciate any help someone could give me. I am new to GRASS and
somewhat new to GIS (worked with ArcView) and I have to get a major
project done by the end of the month (boss promised a client we could
do the work, of course I'm the one who has to do it since he doesn't
even know what GIS is).
Thanks,
Jason Morgan