[Xastir] New capability: 2008 Tiger Shapefile street maps

[William McKeehan]

For what it's worth, this seems to have worked and, before Xastir stopped
working for me, it was much quicker using these smaller files.

I used a script file to do the splitting. You can look at the script here:
http://mckeehan.homeip.net/aprs/split_by_feature.sh

and the supporting features.txt file is there also:
http://mckeehan.homeip.net/aprs/features.txt
(note that this features.txt file is just for the edges files.

The script accepts a list of files as arguments for the "input" files; I used
find and xargs to process the downloaded files.

If these prove useful to anyone, feel free to use them.
-- 
William McKeehan
KI4HDU
http://mckeehan.homeip.net


On Sun, May 3, 2009 7:23 pm, Tom Russo wrote:
> On Sun, May 03, 2009 at 06:44:42PM -0400, we recorded a bogon-computron
> collision of the <mckeehan at mckeehan.homeip.net> flavor, containing:
>> Yes, that helps a lot! Are there any tools that I could use to graphically
>> see
>> the data that would match a set of criteria? Without doing the ogr2ogr
>> thing,
>> then loading the map in Xastir?
>
> Not really.  QGIS, I suppose, but getting QGIS running on your system might
> be too much work.  If you're lucky, perhaps there's a binary packge for it.
>
> Oh, yeah, ESRI ArcExplorer should work, too.  I can't recall if they've still
> got a Java version --- I ran it even on my BSD systems for a while.  I still
> have a copy of ArcExplorer 9.1 that's the java version.  Looks like they still
> do have it and are up to version 9.3:
>
>    http://www.esri.com/software/arcexplorer/index1.html
>
> If push comes to shove, you might be able to run their Windows version under
> Wine.
>
>> On Sun, May 3, 2009 5:12 pm, Tom Russo wrote:
>> > On Sun, May 03, 2009 at 03:24:42PM -0400, we recorded a bogon-computron
>> > collision of the <mckeehan at mckeehan.homeip.net> flavor, containing:
>> >> I'm not knowledgeable enough about shape files to be able to figure out
>> what
>> >> the "where" clause should be.
>> >>
>> >> What I would like to do is pull parts of the shape files into their own
>> >> file,
>> >> so I would have a file (probably still keeping it broken down by
>> >> state/county)
>> >> for Limited Access Roads, another for secondary roads, etc.; basically,
>> the
>> >> same breakdown that is done in the dbfawk files. Having each bit of
>> >> information in a separate file would let me set the max zoom level for
>> each
>> >> file and thus prevent Xastir from reading data that I have no intention
>> of
>> >> displaying at the particular zoom level that I am at.
>> >>
>> >> So that's my end goal.
>> >>
>> >> With that in mind, can someone recommend tools that would help me
>> understand
>> >> how to build appropriate where clauses to break these files out?
>> >
>> > K.  I just did this for Santa Fe County, NM, file
>> "tl_2008_35049_edges.shp":
>> >
>> > Limited access roads:
>> >   ogr2ogr  -where "MTFCC like 'S11%'" SantaFeLTDAroads.shp
>> > tl_2008_35049_edges.shp
>> >
>> > Secondary roads:
>> >   ogr2ogr  -where "MTFCC like 'S12%'" SantaFeSecondaryRoads.shp
>> > tl_2008_35049_edges.shp
>> >
>> > Lather, rinse, repeat for other patterns in the DBFAWK file.
>> >
>> > "MTFCC='S11'" didn't work, because it turns out that the actual MTFCC
>> values
>> > *start* with S11, but have suffixes.  So -where "MTFCC like 'S11%'"
>> matches
>> > any record with MTFCC that starts with S11.
>> >
>> > That should get you on the path.  HTH.
>> >
>> > --
>> > Tom Russo    KM5VY   SAR502   DM64ux          http://www.swcp.com/~russo/
>> > Tijeras, NM  QRPL#1592 K2#398  SOC#236
>> http://kevan.org/brain.cgi?DDTNM
>> >   In some cultures what I do would be considered normal.
>> >                                   -- Ineffective daily affirmation
>> >
>> > _______________________________________________
>> > Xastir mailing list
>> > Xastir at lists.xastir.org
>> > http://lists.xastir.org/cgi-bin/mailman/listinfo/xastir
>> >
>> >
>
> --
> Tom Russo    KM5VY   SAR502   DM64ux          http://www.swcp.com/~russo/
> Tijeras, NM  QRPL#1592 K2#398  SOC#236        http://kevan.org/brain.cgi?DDTNM
>   In some cultures what I do would be considered normal.
>                                   -- Ineffective daily affirmation
>
>
>