Re: LinkLayer and Timer

Hi Orlando,

The Timer can call LinkLayer.doPrepare() to cause the LinkLayer to fetch
data from the server.

Note that any time a layer repaints itself, all layers have to repaint
themselves. The difference here is that the other layers don't have to
handle a changed projection to gather OMGraphics. They just have to
paint the objects on the map - which is why you want to make sure that
your layer does as little work as possible in the paint() method.

Cheers,

Don

On Sunday, April 14, 2002, at 09:41 PM, orlando feitosa wrote:

> Hi Friends,
>
> Iím trying to develop a layer to animate an object with a TIMER.
>
> As suggested in the archive list, I created a new layer based in the
> DayNightLayer JUST to implement a timer (javax.swing.Timer).
> I would like to use this new layer TIMER to update / repaint the
> projection of another layer (LinkLayer which accesses information in a
> DB).
>
> In the moment, both layers work fine separately, and to update /
> repaint the LinkLayer I have to change all map projection (zoom in /out
> with mouse in navigation) to call the listen method LinkMapRequest
> graphicsQuery = link.getMapRequest().
>
> My question is, how can I use this layer TIMER to update / repaint JUST
> the LinkLayer automatically without having to repaint all layers in the
> map.
>
> Thanks for any help.
>
> Best Regards,
>
> Orlando
>
>
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Don Dietrick, BBN Technologies, dietrick@bbn.com
10 Moulton Street, Cambridge, MA 02138
617-873-3031 [fax]-2794
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