[Xastir] New capability: 2008 Tiger Shapefile street maps

[Richard Polivka, N6NKO]

QGIS is out for this.

I run QGIS and that would not be the proper way to do it. The ogr2ogr 
path is the best way unless you want to act on each single entry in 
QGIS. The edge files can get to be real huge.

I use QGIS for putting in updates and changes to my local shapefiles.

BTW, I have been in the process of downloading the WHOLE enchilada from 
census.gov this weekend. I just believe in self abuse.

73 from 807,

Richard, N6NKO


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
>>>
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>>>
>>>
>>>       
>
>