On Jan 22, 2:53 pm, dabernal <[email protected]> wrote: > I am creating and refreshing a KML file every 30 seconds. It contains > vehicle's reports over a Google map V3, with ASP.NET 2010. The first > time I open the page it shows all the points on the map, including the > ones just reported, about 70 in total. After 30 seconds a timer re- > generates the KML file and reloads it with the following code: > > First the map is loaded : > > function init_map(map_canvas_id, lat, lng, zoomLevel) { > var myLatLng = new google.maps.LatLng(lat, lng); > var options = > { > zoom: 11, > center: myLatLng, > mapTypeId: google.maps.MapTypeId.ROADMAP, > mapTypeControl: true, > mapTypeControlOptions: > { > style: google.maps.MapTypeControlStyle.DROPDOWN_MENU, > position: google.maps.ControlPosition.TOP_LEFT > }, > scaleControl: true, > scaleControlOptions: { position: > google.maps.ControlPosition.LEFT_BOTTOM }, > navigationControl: true, > navigationControlOptions: > { > style: google.maps.NavigationControlStyle.SMALL, // > ZOOM_PAN > position: google.maps.ControlPosition.LEFT_TOP > } > } > var map_canvas = document.getElementById(map_canvas_id); > map = new google.maps.Map(map_canvas, options); > ctaLayer = new google.maps.KmlLayer(kml_url); // Carga en 'map' > el arc. KML > ctaLayer.setMap(map); > > } > > after that, and every 30 seconds i regenerate the KML file and refresh > the map: > > function timer1() > { // every 30 seconds > grid2.Refresh(); > cpanel.PerformCallback(); > try { > ctaLayer.setMap(null); // Borrar KML de memoria > } > catch (e) { > } > kml_url = "http://autorastreo.net/downloads/"; + g_fname; > try > { > ctaLayer = new google.maps.KmlLayer(kml_url, > { preserveViewport: true }); > ctaLayer.setMap(map); > } > catch (e) > { > } > } > > I have not found a way to make it show the current data, only the > first file generated is shown, like if it was chached or buffered > someway. It always shows the first one. I even tried deleting the > files in the server side before executing: > ctaLayer = new google.maps.KmlLayer(kml_url, { preserveViewport: > true }); > ctaLayer.setMap(map); > I also tried to find in the client side (windows XP IE 8) if the > files where cached, I found it and deleted it but with no > success...! > > Is there a cache function in Google Maps that I can desable?
The files are cached on googles servers: http://groups.google.com/group/google-maps-js-api-v3/search?group=google-maps-js-api-v3&q=kml+cache&qt_g=Search+this+group If you change the data, the general accepted way to bust the cache is to append a parameter to the url that changes everytime you request it (or at least everytime the data changes). I usually use a function of the Date(), some people use a random number. -- Larry > I tried with Firefox and the problem is the same...! Any help will > be very appreciated. Thanks. -- You received this message because you are subscribed to the Google Groups "Google Maps JavaScript API v3" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-maps-js-api-v3?hl=en.
