set basemap opacity with slider

Question

Greetings,

Is there a way using the ESRI Javascript API to allow the user to dynamically adjust a basemap's opacity using a slider?  The ESRI Silverlight API allows the user to dynamically fade from one basemap to another using a slider.  Is this possible to do using the Javascript API?

Thanks,
Charlie

MatejTacer · Answer

This is nice if you add baseMaplayer manually as a separate layer.
Is this possible with baseMap gallery widget?

I'd like to add a slider that would set opacity on whichever baseMap layer has been selected from the widget.

edited:
just figured it out. this is one way of doing it:  map.getLayer(map.basemapLayerIds).setOpacity(0.1);

JohnGravois · Answer

i went ahead and updated this sample to use AMD/version 3.8 of our API and on style event listeners. http://jsfiddle.net/jagravois/3rZK5/ Basemaps with an Opacity Slider

* Streets * Oceans

derekswingley1 · Answer

Of course ;) . There used to be a sample somewhere but I've lost track of it. I spent a little time putting together a new sample that shows this: Basemaps with an Opacity Slider

* Streets * Satellite

We should probably put this in the official samples...