[OpenLayers-Users] Tile Rendering start-stop

[Ricardo Bayley]

Thanks Greg, works perfect !

2012/4/9 Greg Allensworth <gregor at greeninfo.org>

> The 'loadstart' and 'loadend' events, for WMS layers anyway, indicate when
> all tiles have finished loading. We use this to make a little "loading..."
> spinner for the WMS layers, it works great.
>
>
> function loadingStart(layer) {
>    document.getElementById('**loading').style.display = 'inline';
> }
>
> function loadingStop(layer) {
>    document.getElementById('**loading').style.display = 'none';
> }
>
> wmslayer.events.register('**loadstart', wmslayer, loadingStart );
> wmslayer.events.register('**loadend', wmslayer, loadingStop );
>
>
> Since the 1 param sent to the callback ("layer" above) is the WMS layer,
> you can fetch the layer's ID or name, and do something a little more
> sophisticated with getElementById() such as fetching a specific <IMG>
> element, so each layer can have its own loading spinner.
>
> --
> Greg Allensworth, Web GIS Developer
> BS  A+  Network+  Security+  Linux+  Server+
> GreenInfo Network - Information and Mapping in the Public Interest
> 564 Market Street, Suite 510  San Francisco CA 94104
> PH: 415-979-0343 x302  FX: 415-979-0371    email: gregor at greeninfo.org
> Web: www.GreenInfo.org     www.MapsPortal.org
>
> Subscribe to MapLines, our e-newsletter, at www.GreenInfo.org
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.osgeo.org/pipermail/openlayers-users/attachments/20120409/3b94e015/attachment.html