[Xastir] .shp vs poly.shp

[Keith Kaiser]

That was very clear thank you very much. Just out of curiosity what do you use?

On 4/17/05, Tom Russo <russo at bogodyn.org> wrote:
> On Sun, Apr 17, 2005 at 10:36:43PM -0500, we recorded a bogon-computron collision of the <keith.kaiser at gmail.com> flavor, containing:
> > I use http://xastir.tamu.edu/2004/states/ for maps and download the
> > entire state file. In that file by county are files label e.g.
> > GIS/MO/MO_Platte_County_Poly.shp and GIS/MO/MO_Platte_County.shp can
> > someone please explain the difference to me and then make a
> > recommendation as to which I should be using in Xastir?
> 
> The one without "_Poly" contains only linear features (roads, airport runways,
> etc.).  The one with _Poly contains area features (boundaries, parks, airports,
> lakes, etc.).
> 
> Shapefiles can contain only one type of feature (point, line, or area), and so
> the two can't be combined.  Until this last batch of shapefile conversions,
> the tamu server only had the linear feature version.  The area feature
> shapefiles took a little more doing, but most people who like the TIGER data
> wanted them, too.
> 
> If you just want a road map, use the .shp version.  If you only want colored
> polygons to represent various areas, use the _Poly.shp version.  If you want
> something that looks more like the tigermap web site, use both.
> 
> --
> Tom Russo    KM5VY     SAR502  DM64ux         http://www.swcp.com/~russo/
> Tijeras, NM  QRPL#1592 K2#398  SOC#236 AHTB#1
>  "The only thing you can do easily is be wrong, and that's hardly
>   worth the effort." -- Norton Juster
> 


-- 
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Keith D Kaiser -- Venturing Roundtable Commissioner
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