About Bing Maps API in silverlight, how to disable the recursive?

Question

Hi All,

I'm using the Bing Maps API in my silverlight project.

Now, I have a question: Is it possible to disable the recursive?

I mean, when the zoom level is low, I can see there are more than one 'Asia','Europe' on my map.

In my project, I added many pushpins on my map to see a distribution.

But you know, if there are 2 Asia, that is really confused in some time.

So I wonder if there is a solution to disable the recursive of my map, or maybe just set a minZoomLevel to make sure that there will never be 2 'Asia' on my map?

Thanks!

Answer 1

You can't disable the wraparound panning as such, but you can create your own map mode that limits the allowed zoom range and/or extents to which users can navigate. Something like this: (untested)

public class LimitMapMode : Microsoft.Maps.MapControl.Core.MercatorMode
{
    // Set min. zoom level to 5
    public Range<double> MapZoomRange = new Range<double>(5.0, 19.0);

    // Override GetZoomRange method to return allowed zoom range at given location
    protected override Range<double> GetZoomRange(Location center)
    {
        return this.MapZoomRange;
    }
}

---

twitter: @alastaira blog: http://alastaira.wordpress.com/

Answer 2

Hi  tanoshimi,

This is helpful. Thanks a lot.