Real time Data

[Manfred Meier]

Hello,

I do not have a running example. But I have such data and could use such 
a solution too.

A solution could be: With a javascript timer or a http-refresh in your 
html page trigger a reload every 10 or less minutes. If your script on 
the server side sees that the data has not been changed, it could send a 
http-header 204 (no content). I have tried this once and it seems that 
the browser does not make a refresh then (= no flickering screen). If 
the data has changed, the server sends a new image. If you put your map 
into an iframe then it is simpler to realize I think.

On the mapserver list had been such questions many times for example for 
showing the gps signals from vehicles. You could ook at the map archive.

Manfred










K S schrieb:

> Hi everyone,
> I try to have real time data on mapserver. More specifically I  would 
> like to have data which change every 10 minutes and mapserver should 
> show a new map based on the changed data. I have no idea how could this 
> be possible.Any help would be very useful.
> Thanks in advance.
> 
> ------------------------------------------------------------------------
> Χρησιμοποιείτε Yahoo!
> Βαρεθήκατε τα ενοχλητικά μηνύ ματα (spam); Το Yahoo! Mail διαθέτει την 
> καλύτερη δυνατή προστασία κατά των ενοχλητικών μηνυμάτων
> http://login.yahoo.com/config/mail?.intl=gr