[Xastir] [aprssig] TGR2SHP TIGER/Line translator is now Freeware (fwd)
Tom Russo
russo at bogodyn.org
Wed Dec 13 11:27:07 EST 2006
On Wed, Dec 13, 2006 at 10:11:13AM -0600, we recorded a bogon-computron collision of the <jdw at eng.uah.edu> flavor, containing:
>
> On Dec 13, 2006, at 9:43 AM, Tom Russo wrote:
>
> >Having never used TGR2SHP, I don't know if there's a clear
> >advantage to
> >switching tools. The process is sufficiently complex that there
> >are things
> >that are missed by the ogr2ogr/Xastir-tigerpoly.py method, so maybe
> >there
> >is a good reason to switch.
>
> The only thing that bothers me about the current polygons is when
> there are many adjacent polygons that define a single area. This
> results in a slightly ugly polygon and a serious mess with the labels.
I fixed that in the script by adding a dissolve-polygon option, but nobody
ever re-ran the scripts on the data and made it public.
You can always generate new shapefiles yourself if you have gdal/ogr and python
installed. Download the county files from the census site and run the script
over them. I *think* I describe how to do so on my "shape_web" site, and I've
passed off the information on how to do it several times to folks who were
going to redo the shapefiles. To date the only person who has actually run
all the data through the scripts and made it publicly available was Derrick,
who was using the first version of the script before it had the dissolve
capability.
If anyone wants to try out TGR2SHP and generate better tiger shapefiles than
we have now, and make an associated dbfawk file, well, fantastic. I'd use 'em.
--
Tom Russo KM5VY SAR502 DM64ux http://www.swcp.com/~russo/
Tijeras, NM QRPL#1592 K2#398 SOC#236 AHTB#1 http://kevan.org/brain.cgi?DDTNM
"And, isn't sanity really just a one-trick pony anyway? I mean all you get is
one trick, rational thinking, but when you're good and crazy, oooh, oooh,
oooh, the sky is the limit!" --- The Tick
More information about the Xastir
mailing list