I am trying to add an OverviewMap to an open layers map. I am receiving the following error in firebug:
a is null [Break On This Error]
...ntUpToTier:null,tierSizeInTiles:null,tierImageSize:null,initialize:function(a,b,... OpenLayers.js (line 1244)
I receive this error when adding control to map object like this:
but also I receive the same error when I pass a new OverviewMap object when instantiating a map like in the following tutorial: http://openlayers.org/dev/examples/controls.html
I have made sure to pass my non-default options to the new OverviewMap
Has anyone run into this before? I am using zoomify tiles would that be an issue with creating an overview map?? Thank you.