[OpenLayers-Dev] Hover over point - Display name

[Alexandre Dube]

Joe,

You can't. You can only use it with Vector features. If you're planing 
to use WMS only, you can use the GetFeatureInfo control triggering 
requests when the mouse stops for a brief moment and display a div with 
the name of the feature hovered.

Here's an other solution (still using WFS to get and draw vector 
features though, you'll need to make sure that you have a WFS server setup):
http://www.openlayers.org/dev/examples/getfeature-wfs.html

Unfortunately demo.opengeo.org seems to be down for the moment so you 
won't be able to see it live, but look a the source and you should be 
able to reproduce the same thing in your application. Basically, with 
the demo you can draw boxes on the map and a WFS GetFeature request is 
sent and the returned features are drawn as vector features on the map, 
looking as they were highlighted. It might be a bit too much for what 
you want, but it's good to see alternatives.

IMHO, a WMS GetFeatureInfo request should be enough. See (instead of 
triggering requests on map click, make it happen on mouse move stopped):
http://www.openlayers.org/dev/examples/getfeatureinfo-popup.html

See also :
http://www.openlayers.org/dev/examples/hover-handler.html

Hope this helps,

Alexandre


geojoe wrote:
> It turns out the layer I'm using for hover is a WMS layer and the features
> property is NULL.  
>
> How do I use hover with a WMS layer?
>
> Joe
>
>   


-- 
Alexandre Dubé
Mapgears
www.mapgears.com