Static overview map

[openlayers]

If the overview map is global and has only one zoom level, the overview map still pans so that the zoom rectangle is centered. A global overview map looks better if it is static, as there is no area outside its extents. A static overview map is independent of the zoom rectangle and never pans or zooms.

This patch adds a new APIProperty staticMap in OpenLayers.Control.OverviewMap to enable the static overview map.

[tschaub]

Assuming you want to restrict navigation on the overview map control's map to the world bounds in geographic, you can do the following:

    var overview = new OpenLayers.Control.OverviewMap({
        mapOptions: {
            restrictedExtent: new OpenLayers.Bounds(-180, -90, 180, 90)
        }
    });

(Note that you can set any options that you would set on a normal map in this way.)

Reopen this ticket if this doesn't treat your situation.