[ka-Map-users] auto refresh layers

[Edward Cooley]

If you only have a few alerts (less than 50) you should consider using  
geoObjects instead of a layer.  That way you can issue an AJAX request  
that returns an updated array of alerts and handle with javascript  
rather than the bulk of refreshing a layer.

Having said that, there is auto-refresh timers built into kamap that  
can be used to refresh a layer.

Here is an example of a layer I use for radar weather images updating  
every 10 minutes.

   LAYER
     GROUP "Weather"
     NAME "weather"
     STATUS OFF
     METADATA
         "opacity" "50"
         "redraw_interval" "600"
         "tile_source" "redraw"
         "refresh_interval" "300"
     END
     TYPE RASTER
     STATUS OFF
     DATA "../data/weather/weather.gif"
   END


---
Edward J. Cooley
Strategy Systems, Inc.
http://www.strategysystems.com
Phone: 479-271-7400 Ext. 103
Photograph Blog - Photo Galleries





On Aug 22, 2008, at 1:41 AM, marco mugnaini wrote:

> Hello,
> i'm a rookie for ka-map and i need some information...
>
> ka-map it's the right application to make visual alert system?
>
> in practice, it's possible to set an autorefresh for the layers?
>
> have you any experience in that?
>
> ...to make an example: info traffic in real time..
>
> thanks to everyone from italy!
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