Kml overlay on java api. New points not plotted?

[az]

Hi 

I have a kml file that I plot to the map using 

var ctaLayer = new google.maps.KmlLayer('http://myserver/cta.kml');
ctaLayer.setMap(map);

Initially there were only 2 points in the kml file and they plotted OK first tile only.

Afterwards if I add new points to the kml they are not plotted at all. Is I change the name of the kml to something new, only then are the new points plotted.

Is there some kind of cache somewhere and how I can make the changes to kml file visible, i.e. newly added points plotted?

Thnaks

[Chris Broadfoot]

Yes, there's a cache. I suggest appending a time-dependent dummy parameter to the URL:

var cacheBust = parseInt(new Date() / (1000 * 60 * 60), 10);

new google.maps.KmlLayer('http://myserver/cta.kml?' + cacheBust);

This will update the KML file every hour (1000*60*60 = one hour in milliseconds)

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[az]

Thanks a lot. Will give it a try.

What is the minimum ammount of time that the cache might be updated.

Could it be every 10 minutes?

[Rossko]

> What is the minimum ammount of time that the cache might be updated.
> Could it be every 10 minutes?

KmlLayer cache expiry is under Google's control, you can't influence
it. It seems to be at least several hours.

The method Chris suggested circumvents the cache altogether, so you
needn't worry about cache expiry at all.

[az]

Thanks,

Is circumverting the cache one of the means to overlay/show data added in real time?

In that note what is the best method for this?

The idea is that users will add x/y coordinate and these need to be plotted on the map. 

[az]

Hi

thanks for that, but when I apply the cachebust, nothing happens - the map canvas is just a grey area.

[Rossko]

> thanks for that, but when I apply the cachebust, nothing happens - the map
> canvas is just a grey area.

Something is wrong. We can't see what.
http://groups.google.com/group/google-maps-js-api-v3/browse_thread/thread/2b3f101fd509919e

[az]

I got it :)

Here it is:

http://garnet2k.dyndns.org:8080/map.html

Help appreciated.

[az]

Hi

Could you please check my code. There is a problem with the cache dummy. 

Webaddress vbove.

Thanks

[Rossko]

> Here it is:http://garnet2k.dyndns.org:8080/map.html

You are not defining any centre for the map when you initialize it

[az]

This is sorted now, but now the kml isnt plotted at all.