[OpenLayers-Users] WMS and mergeNewParams

[Diego Guidi]

> I am a bit confused about how to apply the mergeNewParams() function to force
> a WMS layer to go get new tiles. Do I need to call the mergeNewParams each
> time a user enables the layer, or is it sufficient to set it one time after
> the creation of the layer?
> I suspect I need to call it each time the user turns the layer on but I just
> want to clarify that.
You must call mergeNewParams each time you want to change WMS
parameters sent to the server, easy uh?