[Xastir] SDTS to shapefile conversion?

[Gerry Creager n5jxs]

I haven't played with ogr2ogr for SDTS files.  I don't know if it'll 
auto-detect the metadata -- datum/projection, etc.

So, yes, the caveat is that it might produce a file, but it might not be 
in the datum you expected!

gerry

Curt, WE7U wrote:
> On Mon, 3 Jan 2005, Gerry Creager n5jxs wrote:
> 
> 
>>Fort those of you who followed the APRS Sig thread about Tiger
>>inaccuracies a couple of weeks or months ago, this is a significant
>>deal.  I may want to snag the shapefiles; I'll get ahold of the player
>>in NYC who was so concerned about the TigerLine files.  This should make
>>him happier.
>>
>>One caveat: It is my understanding from our USGS State Mapping
>>Coordinator that not all of the SDTS coverages have been appropriately
>>reprojected to NAD83.
> 
> 
> I think the OGR code as used by Xastir will auto-convert, but you're
> saying that for OGR2OGR you'd perhaps have to have it do a datum
> translation as well as a file translation, in order to come out with
> Shapefiles that were in WGS84 or NAD83, right?
> 
> I'm basing my statement about Xastir/OGR doing the auto-translation
> on the fact that it does this with Shapefiles just fine, as long as
> they have a .prj file with them that OGR can recognize.  I've used
> state-plane coordinate system NAD27 shapefiles under OGR and it
> works.
> 
> --
> Curt, WE7U.   APRS Client Comparisons: http://www.eskimo.com/~archer
> "Lotto:    A tax on people who are bad at math." -- unknown
> "Windows:  Microsoft's tax on computer illiterates." -- WE7U
> "The world DOES revolve around me:  I picked the coordinate system!"

-- 
Gerry Creager -- gerry.creager at tamu.edu
Texas Mesonet -- AATLT, Texas A&M University	
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