[OpenLayers-Users] Changing the Layer displayed by a WMS

[Christopher Schmidt]

On Fri, Jul 21, 2006 at 05:38:26PM +0100, Jon Blower wrote:
> Hi all,
> 
> I've just started playing with OpenLayers and I think it's very promising.
> I'm using it mainly to display maps from a WMS.  I'd like to know how I can
> dynamically change the WMS Layer that is being displayed.  For example, I've
> created a WMS layer like this:
> 
> var my_wms = new OpenLayers.Layer.WMS1_3("My WMS", "http://path.to/mywms?",
>         {layers: 'somelayer'});

Jon -- 

This seems like the kind of problem that the 'changeParams' call is well
suited for -- there is an example of this in
http://openlayers.org/dev/examples/wmst.html -- essentially, you would
do my_wms.changeParams({layers:'newlayer'});

This would change the params, and reinitialize the image array with the
new images. 

Does this match your needs?

-- 
Christopher Schmidt
Web Developer