On 7/15/2011 10:56 AM, Michael wrote:
I have been using cookies. Set a cookie with each change, read when the page is invoked. Have not been using for pan and zoom, but should be the same...
Agreed; we have a map where we set cookies to save the map's state: the zoom and X/Y location, etc. Here's even some sample code to get you started.
This basic cookie library for JavaScript, http://agatlas.mapsportal.org/media/js/cookie.js taken from this site originally: http://techpatterns.com/downloads/javascript_cookies.php Throw a few event handlers onto your map, to save the state to cookies: map.events.register('moveend', map, function () { Set_Cookie('mapx', map.getCenter().lon ); Set_Cookie('mapy', map.getCenter().lat ); Set_Cookie('mapz', map.getZoom() ); }); map.events.register('changebaselayer', map, function () { Set_Cookie('base', map.baseLayer.name); }); And recall the state from cookies: var lon = Get_Cookie('mapx'); var lat = Get_Cookie('mapy'); var zum = Get_Cookie('mapz'); if (lon && lat && zum) { map.setCenter(new OpenLayers.LonLat(lon,lat),zum); } var base = Get_Cookie('base'); if (base) selectBasemap(base); -- Greg Allensworth Web GIS Developer, GreenInfo Network BS A+ Network+ Security+ Linux+ Server+ _______________________________________________ Users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/openlayers-users
