Hi list, we've encountered a potential problem with updateSize in OL 2.5.
The updateSize function causes all invisible baselayers to request an image from their WMS service. At least for WMS untiled, I haven't checked other types. I've created an example which can be used to reproduce, the easiest is to watch the Net console of Firebug. <html xmlns="http://www.w3.org/1999/xhtml";> <head> <style type="text/css"> #map { width: 400px; height: 500px; border: 1px solid black; } </style> <script src="../lib/OpenLayers.js"></script> <script type="text/javascript"> var map; function resize() { document.getElementById('map').style.width = '600px'; document.getElementById('map').style.height = '800px'; map.updateSize(); } function init(){ OpenLayers.DOTS_PER_INCH = 90.714; map = new OpenLayers.Map( 'map', { 'projection': 'EPSG:28992', 'units':'m', 'maxExtent': new OpenLayers.Bounds(0,300000,300000,600000),'scales': [2000000, 1500000, 1000000, 750000, 500000, 375000, 250000, 100000, 50000, 25000, 10000, 5000, 2500, 1000]}); var layer = new OpenLayers.Layer.WMS( "Provincies", "http://www.rijkswaterstaat.nl/services/geoservices/overzichtskaartnl?";, {layers: 'NL-prov,bebouwing', 'format':'image/gif', 'transparent':'TRUE'}, {'ratio':1, singleTile: true, isBaseLayer: true} ); map.addLayer(layer); var layer = new OpenLayers.Layer.WMS( "Dijkringgebieden", "http://www.rijkswaterstaat.nl/services/geoservices/basispakket/grenzen?";, {layers: 'AAA205', 'format':'image/gif', 'transparent':'TRUE'}, {'ratio':1, singleTile: true, isBaseLayer: true, visibility: false} ); map.addLayer(layer); if (!map.getCenter()) map.zoomToMaxExtent(); map.addControl( new OpenLayers.Control.LayerSwitcher() ); } </script> </head> <a href="javascript:resize()">Resize</a> <body onload="init()"> <div id="map"></div> </body> </html> TIA. Best regards, Bart -- Bart van den Eijnden OSGIS, Open Source GIS http://www.osgis.nl _______________________________________________ Dev mailing list [email protected] http://openlayers.org/mailman/listinfo/dev
