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<p class=MsoNormal>I'm building a site that involves a couple of editable
vector layers drawn on top of a landbase. In development, I've been
working with a publicly accessible WMS, but that won't fly for our production
system. I need more control of what features will be displayed at which
resolutions. So I need to set up a landbase server, that I can access
from OpenLayers.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>We're planning to start with the Tiger data. The
question is how best to host it. Our previous systems used KaMap layers,
creating tiles with MapServer, from shape files. The performance has only
been barely acceptable, and the configuration has been a constant
headache. So, I'm looking for alternatives.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>It looks to me like we've three decisions to make.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>1st, the access method - the OpenLayers layer type.
WMS? WFS? WMS-T? KaMap, again? We'd like to have some ability to
query features, which we don't have with KaMap, but not at the cost of performance.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>2nd, the data store. Mapserver and shape files have
been fairly slow, for us, so we're thinking about using a GIS database.
PostGIS is free, we have a license that would allow us to use Microsoft's new
GIS capabilities in SqlServer.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>3rd, the actual serving application. KaMap acts as its
own server. If we decide on WMS, using a PostGIS database, what Open
Source options are there for WMS server applications? I have a vague
understanding that MapServer can be configured to run as a WMS server.
How well does it work? How does it perform?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Does PostGIS have a WMS-serving capability? SqlServer?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Discussion?<o:p></o:p></p>
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