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Arnie,<br>
<br>
I'm working on something almost exactly as you describe, a connect
and/or standalone map service. I cal it a cascaded map service (might
be a mis-label), that can stay in sync with the remote server, and act
as a standalone when the network connection is not available.<br>
<br>
My buisness needs go beyond emergency management however some some of
the guts are still harder to grasp by the beginner/sometimer admins.
But the hope is to make that all transparent, and reply on the
local(standalone) service to keep it self up to date based on a remote
service (that may or may not require the highend capabilities to set
up. (we use GeoMoose for example.).<br>
<br>
I can keep you in the loop on things if you are interested.<br>
<br>
bobb<br>
<br>
<br>
Arnie Shore wrote:
<blockquote
cite="mid:a6bec900909161753l34f8681y6d991d1dab975e68@mail.gmail.com"
type="cite">As a very interested lurker, and as one who has developed
an Open Source Computer-Aided-Dispatch system that has embedded
google's maps product, I can tell you that one of the deterrents I see
is the relative complexity of an Open Source GIS implementation - as
compared to the use of GMaps, which also, of course and notably, is
free. The single source of both the tiles as well as the API is
relatively straightforward for the non-cartographer novice.<br>
<br>
My user community includes a fair-sized portion who have never before
implemented a web-server-based system, and our package is designed to
minimize the number of elements that need separate collection and
configuration. To tell them that they need a map server in addition to
the stack that WAMP, XAMPP, MAMP, installs in a single executable will
turn away too many candidates, IMO. In our case, the tile-serving
capabilities could be met by a rather limited set of server-side
functions that are OL-aware. But I haven't seen anything like that in
the panoply of products that comprises the OSGeo world. Please correct
me on this if such exits.<br>
<br>
(Further evidence of the importance of the ease-of-implementation issue
is the proliferation of open source libraries that include capabilities
taht are based on a GMaps foundation.)<br>
<br>
I will say that my users - many of whom are into emergency operations -
indeed are asking for an implementation that wd allow operation while
disconnected from the Internet. Impossible in a GMaps-based solution,
but completely feasible in one based on OpenLayers plus locally stored
OSM tiles. Users I've pointed to the available OSM sites have told me
that the level of detail wd be completely satisfactory as a suitable
replacement for GMaps. Which is a critically important data point, IMO.<br>
<br>
My perception of the current evolution of the world of Open Source GIS
is toward greater complexity and richness. Which certainly makes for
excitement and challenge for its enthusiasts; but that isn't doing much
for those of us along the borders looking over the fences, and with
limited hours available to hop that fence and get involved.<br>
<br>
Make entry easier than it is, folks. Please?<br>
<br>
A. Shore<br>
Annapolis, MD<br>
<br>
<br>
<div class="gmail_quote">On Wed, Sep 16, 2009 at 5:09 PM, Ravi <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:ravivundavalli@yahoo.com">ravivundavalli@yahoo.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote"
style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hi,<br>
have been going through all the wishes, all the arguments about how
Open Source GIS must evolve etc. ...<br>
</blockquote>
</div>
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