Hi, You don't really need a text file, you can generate XML directly from the PHP and have OpenLayers read that. One good format to use for the XML is GeoRSS as OpenLayers already has a parser for that. The OpenLayers parser uses GeoRSS with Atom rather than RSS 2.0.
Look at http://www.free-map.org.uk. The annotations (red stars) are generated from a GeoRSS feed generated in turn by a PHP script from the database. Here is how I create the layer (as you can probably tell, annotation.php generates the GeoRSS feed): freemap.layerAnnotations = new OpenLayers.Layer.Vector ("Annotations", { strategies: [new OpenLayers.Strategy.BBOX()], protocol: new OpenLayers.Protocol.HTTP ( { url: "/freemap/annotation.php?action=getByBbox", format: new OpenLayers.Format.GeoRSS() } ), styleMap: asm } ); You can alternatively define your own format if you don't want to use GeoRSS. See http://www.free-map.org.uk/otv/RouteJSON.js as an example (this is JSON based, and creates LineStrings, but it's the same general idea). Nick _______________________________________________ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
