[udig-devel] animation for temporal data

Jody Garnett jgarnett at refractions.net
Fri Jan 5 13:11:22 PST 2007


Hi Dale, we have considered add "time" to the ViewPort model for a while 
(following the guidelines used by the WMS specification). We have not 
done this yet - as you are the first person to ask.

Here is how you could do it today:
1. place "time" on your style black board (it is a parameter that will 
help choose which resource & renderer to use)
2. make a "style configurator" that has a slider (and a play button 
backed by a Job?)
3. associate the shapefiles together using the catalog friends extension 
point
4. now that the layer has access to time and all the shapefiles you can 
either:
- Choose the correct Shapefile via via a layer resource post processing 
hook (jesse has the details); or
- copy the shapefile renderer code and have it ask for the correct 
shapefile directly

Having this as an example would help provide the real world experience 
needed to place time into the ViewPort model properly.
Cheers,
Jody

> Hi
>
> I have a bunch of shapefiles representing temporal data (wildfire 
> growth on an hourly basis).
> How might I go about automatically animating them -- ideally just by 
> specifying a basename
> for the files and a timer for updating the current file. Saving the 
> animation as a movie
> would be a nice bonus :-)
>
> Thanx
>
> Dale
> _______________________________________________
> User-friendly Desktop Internet GIS (uDig)
> http://udig.refractions.net
> http://lists.refractions.net/mailman/listinfo/udig-devel



More information about the udig-devel mailing list