> -----Original Message----- > From: Bart van den Eijnden (OSGIS) [mailto:[EMAIL PROTECTED] > Sent: Saturday, September 23, 2006 2:27 AM > To: Jeff Dege > Cc: [email protected] > Subject: Re: [UMN_MAPSERVER-USERS] Multiple feature queries to WFS? > > Hi Jeff, > > you can get multiple by combining the PropertyIsEqualTo's > with the <Or> tag.
I discovered the <or> tag on further investigation. Doesn't do all I need, since it returns a separate boundedBy for each featureMember, and one for the entire FeatureCollection. The data I'm using has multiple featureMembers for each property value. If I query on one property value, the featureCollection's boundedBy is what I need. If I query on several property values, the featureCollection's boundedBy is meaningless to me, and I need to add up the boundedBy's of each indivudal featureMember. Which isn't a hard thing. > Also, what datastore are you using? Remember that shapefiles have no > attribute indexes, so access on an attribute will be slow and requires > parsing of the whole shapefile normally. This kind of use case might be > better of in PostGIS. The data I have is provided in shapefiles. I could extract the attribute data and put it in a database, should it be necessary. I'm not sure that it is, right now. I'm using an Ajax client, and pulling the boundedBy values asynchronously, prior to the user's actually asking for it. > The limit is usually the limit of the web server, Apache's limit is > somewhere around 8000 characters (HTTP GET). Is there any other way of passing this data?
