thanks martin will have a play. see what works.

visualthinkmapblog: Facebook
Cartography<http://visualisationmagazine.com/blogvisualthinkmap/2010/12/facebook-cartography.html>


On Sat, Dec 18, 2010 at 7:02 AM, Martin <[email protected]> wrote:

> Hi.
>
> I think you have two options:
>
> As already suggested, set the maxZoom property of the MapTypes.
> You need do this only once - not on each zoom_changed event.
>
> Or listen for the zoom_changed event and if the map's new zoom level
> is greater than you desire then set it to your desired level:
>
> google.maps.event.addListener(map, 'zoom_changed', function() {
>  var zoomLevel = map.getZoom();
>  if (zoomLevel >= 12) {
>  map.setZoom(12);
>  }
> });
>
> If you want to stick with the first option then you need to listen for
> an event that'll indicate that the MapType is initialised and ready to
> have it's maxZoom property set.
>
> The projection_changed event MIGHT be what you need:
>
> google.maps.event.addListenerOnce(map, 'projection_changed', function()
> {
>  var myMapTypes=['roadmap', 'satellite', 'hybrid', 'terrain'],
> i=myMapTypes.length;
>  while(i--){
>  map.mapTypes[myMapType[i]].maxZoom=12;
>  }
> });
>
> That projection_changed event listener is untested code btw, and i'm
> not sure if the maxZoom property of each map type is available after
> that event is triggered - you'll have to experiment!
>
> Martin.
>
>
> On Dec 17, 10:55 pm, Christopher Watson
> <[email protected]> wrote:
> >         var zoomLevel;
> >   google.maps.event.addListener(map, 'zoom_changed', function() {
> >     zoomLevel = map.getZoom();
> >     if (zoomLevel == 12) {
> >       map.mapTypes.roadmap.maxZoom(12);
> >     }
> >   });
> >
> > this stops ONE click when try to zoom out. but then lets the second click
> > zoom out.
> >
> > can i stop it from zooming out at all? more if (...)?
> >
> > http://visualisationmagazine.com/sheffieldcreativemap.htm
>
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