Hey- Ed Fialkowski wrote: > Hi, > > I have an openlayers map displaying a WFS for all the counties in the US. > Each county (feature) has a few different attributes (SO2, CO, etc.). > > I would really like, if possible, to allow the user to color the > features that have a certain attribute above a certain amount. >
The "old style" feature styles (in 2.5 and earlier) are really symbolizers. If you get a copy of the trunk (or wait for 2.6), you'll be able to use "new style" styles. You want to create rules (that say things like SO2 > 1.0) and group those together in a style. The georss-flickr example has some code that will be useful: http://openlayers.org/dev/examples/georss-flickr.html The styles wiki page also has some documentation: http://trac.openlayers.org/wiki/Styles Before 2.6 we should get some more docs and examples out on this. Tim > For example, user selects SO2 and filters for values greater than 1.0. > After hitting the 'go' button, all the features with these attributes > greater than 1.0 change color. > > I have found some code for changing feature styles, but I think this is > for features drawn specifically by the user (or hardcoded, added one at > a time, etc., and not so much for an entire WFS full of features). > > If anyone has an ideas, I would be extremely grateful. > Thanks! > -Ed > !DSPAM:4033,47bc8f5c319807082231907! > > > ------------------------------------------------------------------------ > > _______________________________________________ > Dev mailing list > [EMAIL PROTECTED] > http://openlayers.org/mailman/listinfo/dev > > > !DSPAM:4033,47bc8f5c319807082231907! _______________________________________________ Users mailing list [email protected] http://openlayers.org/mailman/listinfo/users
