It is all in one slice, with a time dimension. I could replicate the
layer with a shifted view. Maybe it is too much work for the db server
just to get a pretty effect (but I'll try it anyway :-)

Thank you for the idea

PS Is it possible to have an animated gif as a marker?

El lun, 15-10-2007 a las 08:59 -0500, Fawcett, David escribió:
> If you used one layer for each time slice, and you set the filter for that 
> layer dynamically, you might be able to do something like this.  
> 
> For example, you could have three layers, 'current', 'older', and 'old'.  If 
> you passed in the filter expression for 'current', you would set it to the 
> latest data.  You would do the same with the other two layers, setting them 
> to the older data sets.  
> 
> You could then symbolize the older and old layers using transparency or color 
> (fading from color to grey?) to make them appear as though they are fading 
> away.  
> 
> David.
> 
> -----Original Message-----
> From: UMN MapServer Users List [mailto:[EMAIL PROTECTED] On Behalf Of Marcos 
> Sánchez Provencio
> Sent: Monday, October 15, 2007 8:25 AM
> To: [email protected]
> Subject: [UMN_MAPSERVER-USERS] Time series persistence
> 
> 
> Hello there.
> 
> Is it possible to emulate persistence in a time series? I am showing rays 
> hourly, it would be nice to let the older rays fade away slowly (like a radar 
> ping).
> 
> I am using mapbuilder as the client.
> 
> Thank you in advance for the ideas.

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