Hi ...true + there is always possibility to use non-transparent proxy and cache results. Truth be told, I'm working on something similar: User can choose wheter to use pre-defined geometries (intersction result is always one of few cases -> can be cached) or draw custom geometry (so I have to send an AJAX request; params: type of geometry - DrawControl.Hander, coordinates - feature.geometry.getVerticies() and name of requested layer - can not be cached) and see the result. I dont have any options to use spatial database, so I'm forced to use WFS. Any XML-based data = very slow (produce huge blocking time). My solution was to write proxy that konverts GML to GeoJSON. Response time depends on your SW/HW configuration (4CPUs, 4GB RAM (virtual) - requests 20000 of vetricies intersection = aprox. 10sec waiting for response, 1sec loading GeoJSON file, 0.75sec parse time)
Tom -- View this message in context: http://osgeo-org.1560.n6.nabble.com/Filter-features-in-multiple-geographical-areas-tp5021902p5022714.html Sent from the OpenLayers Users mailing list archive at Nabble.com. _______________________________________________ Users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/openlayers-users
