[OpenLayers-Users] Design advice please

[Obe, Regina]

I would definitely not go with a pure WFS solution for such a large
dataset since I think that would be considerably slow.
 
For my case I went with a combined WMS and WFS combination where I load
the WMS and when the user clicks on the the map just query WFS for that
portion.
 
Here is an example
http://www.cityofboston.gov/dnd/M_Property_Inventory_Intro_Page.asp
<blocked::http://www.cityofboston.gov/dnd/M_Property_Inventory_Intro_Pag
e.asp> 
 
Click the interactive map link.  I'm not sure if that's the best way to
go, but seemed to provide the best speed of all techniques I had tried.
I hadn't tried the WMS getinfo, but didn't like that solution since the
get info format is too limiting.
 
Hope that helps,
Regina

________________________________

From: users-bounces at openlayers.org [mailto:users-bounces at openlayers.org]
On Behalf Of Jerry O'Sullivan
Sent: Wednesday, June 06, 2007 1:30 PM
To: users at openlayers.org
Subject: [OpenLayers-Users] Design advice please


Hi All,

I am looking at building an openlayers projects which will be pretty
simple, base data with some points on top. Users will be able to click
on the points to get extra info or link to another page. My questions is
about the best way to display these points. I can see the following
options 

1) Serve points as a WFS layer from geoserver and registers a click
event on the map to get info
2) Serve points as a WMS layer from geoserver and registers a click
event on the map to get info
3) Roll my own Ajax function to pull coordinates out of the points file
and create a new vector.marker layer.

I wold appreciate any advice/suggestions people may have at to the best
approach to take in terms of speed, scalability and maintainability. 

There will be about 150,000 points to begin with but it could rise to
about 400,000. These will probably only be displayed at large zoom
levels ( i.e. small area)

Thanks in advance
Jerry



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