How to determine maxResolution and numZoomLevels in dynamic environment?

Question

I want to determine resolution and number of zoom level dynamically instead of inputting the values in openlayers client. When the user move the position on map by dragging or panning control, I can track the updated Lat-lon and get the min and max lat-lon. Now, I would like to calculate the resolution and maxzoomLevel for newly calculated latlon position when each time user changes the map position.

Thanks

Answer 1

i didnt understand your question very well but you can do sth when your zoomend end:

// zoom end or move end(change zoomend)

  map.events.register('zoomend', this, function (event) {
    var currentZoom = map.getZoom();       
    if( currentZoom  > 5)
    {
        // do something;
    }
});