[OpenLayers-Users] layer loadend event

[Kris Geusebroek]

Hi,

I believe this functionality is already there.
It's called the 'resize' transitionEffect.

Cheers Kris

-----Original Message-----
From: users-bounces at openlayers.org [mailto:users-bounces at openlayers.org]
On Behalf Of protos
Sent: Monday, February 08, 2010 12:23 PM
To: users at openlayers.org
Subject: [OpenLayers-Users] layer loadend event


Hi, 

I'm trying to implement animated zoom functionality in our openlayers
based 
application. I'm doing this by : 
1. Cloning the base layer, 
2. Firing the 'load more tiles' event
3. While the tiles are loading in the baseLayer, displaying and scaling
the
cloned layer in interval steps. 
4. When all the tiles are loaded I delete the cloned layer and the new
tiles
in the base layer should be      displayed.

I'm trying to use the loadend event to indicate that all the new tiles
are
loaded, and that cloned layer should be deleted, but this event does NOT
seem to get fired when all the new tiles are loaded - it seems to get
fired
a long time before that - especially in all browsers except firefox. In
firefox loadend still gets fired early but not quite as early as other
browsers. 
The event gets fired, the cloned layer is deleted, and the base layer is
still busy downloading and rendering the new tiles when it becomes
visible
...............
Do I have a wrong impression of what the loadend event does or is it
just an
openlayers bug ? 

A little bit offtopic, but I had a lot of trouble with the openlayers
cloning functions as well. To me cloning should produce an identical
deep
copy of whatever is being cloned. Openlayers seems to produce a shallow
copy
of a layer with a reference back to the clonee layers grid - and if you
clone a grid it references back to the clonee tiles !! Seems strange to
me.

Anyway - any help with the loadend thing would be very much appreciated.
Cheers,
Colm

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