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| GeoCommunity Mailing List |
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| Subject: | RE: GISList: Shapefile libraries? |
| Date: |
05/09/2003 11:40:01 AM |
| From: |
Chad.M.NIELSEN .. odot.state.or.us |
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|
Mick, et al.,
ROMap seems like a possiblity for providing the distributed data sharing you
mention. I just heard of it myself, so can't comment on how well it works.
(Has anyone in the list heard of / worked with this?)
"ROMap.net is a free map sharing system written in Java, using Open Source
MapServer and Isite. The ROMap application acts as both client and server
and allows any internet user to concurrently serve and view local GIS
datasets and view remote datasets. FGDC/OGC compliant metadata is
automatically published to the FGDC clearinghouse. ROMap was developed with
funding from FGDC and OGC."
http://clearinghouse4.fgdc.gov/registry/viewrecord.asp?rec=417
-Chad
-----Original Message-----
From: Mick Wilson [mailto:mickwilson20@yahoo.co.uk]
Sent: Friday, May 09, 2003 8:49 AM
To: gislist@geocomm.com
Subject: Re: GISList: Shapefile libraries?
Fair point, John, and, as I have privately replied to
others, I have no difficulty with server-based
solutions (though I claim no knowledge as to the
state-of-pay of the type of shapefile server you
allude to). My query is more motivated by the idea
that there are lots of olk out there who - while
having existing projects that could feed such a
library - may not have the time, knowhow or
inclination to implement servers
themselves. Neither am I proposing a centralized
repository - distributed is gooood. Either way, is
there an acceptably lo-tech way to lowering the bar to
getting bite-sized chunks of content up there into the
aether?
Cheers
--- "John D. Evans" <john.evans@gsfc.nasa.gov> wrote:
> 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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