How can I change?

[Pavel Ruslanovich Kovyev]

I have 2 (or more) locations (example lat - 58, lon - 56 and lat - 54, lon - 38). How can I calculate center map and ZoomLevel that this points (locations) was inside map?

[Andrey]

Hi Pavel Ruslanovich Kovyev,

You can use the LocationRect class. It has Center property and ZoomLevel property that contains optimal zoom level for the rectangle.
The sample code of the SetBestView method is below. It specifies Center and ZoomLevel properties of the map control according to collection of locations.

private void SetBestView(Collection<Location> locations)

{

    Location location1 = new Location(90, 180);

    Location location2 = new Location(-90, -180);


    foreach (Location location in locations)

    {

        location1.Latitude = Math.Min(location1.Latitude, location.Latitude);

        location1.Longitude = Math.Min(location1.Longitude, location.Longitude);


        location2.Latitude = Math.Max(location2.Latitude, location.Latitude);

        location2.Longitude = Math.Max(location2.Longitude, location.Longitude);

    }


    LocationRect rect = new LocationRect(location1, location2);

    rect.MapControl = this.radMap;


    this.radMap.ZoomLevel = rect.ZoomLevel;

    this.radMap.Center = rect.Center;

}

Sincerely yours,
Andrey Murzov
the Telerik team