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| GeoCommunity Mailing List |
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| Mailing List Archives |
| Subject: | RE: GISList: Shapefile libraries? |
| Date: |
05/10/2003 10:40:01 AM |
| From: |
Sonny Parafina |
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Ionic RedSpider Web can connect to OpenGIS conformant Web Feature Servers
and distribute the data as zipped shape files to users in addition to
serving features as GML.
Sonny Parafina
www.ionicenterprise.com
-----Original Message-----
From: John D. Evans [mailto:john.evans@gsfc.nasa.gov]
Sent: Friday, May 09, 2003 10:34 AM
To: Mick Wilson: gislist@geocomm.com
Subject: Re: GISList: Shapefile libraries?
Mick, and others,
It seems shapefile SERVERS would suit most of your purposes a lot better
than pre-fabricated shapefiles. You could get exactly what you want, in
one piece, at the resolution you need (give or take some generalization
smarts on the server :-).
(The two approaches aren't mutually exclusive, of course: in fact by
chopping up large datasets into little tiles you could create a simple
spatial index that would greatly speed up your server.)
I'm aware of some (e.g. CubeWerx in Canada) who have begun using OGC's Web
Feature Service interface to serve up geographic features bundled as
shapefiles.
At 04:01 PM 5/9/2003 +0100, Mick Wilson wrote:
>Greetings.
>
>I am curious whether listers are aware of any extant efforts to build
>comprehensive on-line libraries of useful, light-weight shapefiles such
>as country outlines, coastlines, islands and the likes. I appreciate that
>these data are available in some aggregated forms, but these suffer the
>cost of sizeable download, having to be de-aggregated to get
>the bit one needs, necessarily being provided at a single scale (nor
>appropriate for smaller elements), and having a single projection that
>distorts elements toward the edges (look at scandinavia in most global,
>geo/mercator composits).
>
>If such efforts are not afoot, how many listers would be interested in
>contributing time and effort to buidling such an archive, assuming that a
>suitable host site could be found?
>
>I am suggesting here a quickly-usable asset, not necessarily suitable for
>intensely serious GIS work but adequate for quick-and-dirty map
>development. My searches so far have found little to nothing available to
>meet this need.
>
>Thanx in advance for your attention.
- John D. Evans, Ph.D. <jdevans@gst.com>
Global Science & Technology, Inc. (GST)
Geospatial Interoperability Group
1-240-542-1133 / 1-301-286-0803
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