[OpenLayers-Users] setCenter with visible vectorlayers

[Arnd Wippermann]

Thanks Eric,

I have tried movestart with not the effect I want. But after I have send the
mail, I got the solution. 

The problem is, that FF slowed down rapidly, when I set the center of the
map in a high zoomlevel to a new place (i.e. from Paris to Sydney) and have
vectorfeatures in the current view of the map. Set the visibility to false
is not sufficient, i have to kill the features.

The point is, I take the action of setting the new center and have to do the
task. Now I was able to build the code to prevend FF going to sleep.

The result can be seen here :
http://gis.ibbeck.de/ginfo/apps/ClickPoint/clickpoint.html

Mit freundlichen Grüssen

Arnd Wippermann
http://gis.ibbeck.de/ginfo/




-----Ursprüngliche Nachricht-----
Von: eric.c2c at gmail.com [mailto:eric.c2c at gmail.com] 
Gesendet: Sonntag, 4. Mai 2008 13:59
An: Arnd Wippermann
Cc: users at openlayers.org
Betreff: Re: [OpenLayers-Users] setCenter with visible vectorlayers

Hi Arnd,

On Sat, May 3, 2008 at 1:14 AM, Arnd Wippermann <arnd.wippermann at web.de>
wrote:
> Is there a way to capture the event zoomstart (like zoomend)?

>From the API doc:

     *  - *movestart* triggered after the start of a drag, pan, or zoom
     *  - *move* triggered after each drag, pan, or zoom
     *  - *moveend* triggered after a drag, pan, or zoom completes
     *  - *zoomend* triggered after a zoom completes
     *  - *dragstart* triggered after the start of a drag
     *  - *drag* triggered after a drag
     *  - *dragend* triggered after the end of a drag

In your case, using dragstart and dragend did seem the way to go to me.
However, I've looked at the code (trunk) and the drag* events seem to be
never triggered by OpenLayers. Does anyone know why?

--
Eric