/// <summary>Centers the map on the specified coordinates.</summary>
/// <param name="latitude">The latitude cooridinate.</param>
/// <param name="longitude">The longitude coordinates.</param>
/// <param name="zoom">The zoom level for the map.</param>
public void Center(double latitude, double longitude, int zoom)
{
this.BeginUpdate();
this.Zoom = zoom;
_offsetX.CenterOn(TileGenerator.GetTileX(longitude, this.Zoom));
_offsetY.CenterOn(TileGenerator.GetTileY(latitude, this.Zoom));
this.EndUpdate();
}
/// <summary>Centers the map on the specified coordinates, calculating the required zoom level.</summary>
/// <param name="latitude">The latitude cooridinate.</param>
/// <param name="longitude">The longitude coordinates.</param>
/// <param name="size">The minimum size that must be visible, centered on the coordinates.</param>
public void Center(double latitude, double longitude, Size size)
{
double left = TileGenerator.GetTileX(longitude - (size.Width / 2.0), 0);
double right = TileGenerator.GetTileX(longitude + (size.Width / 2.0), 0);
double top = TileGenerator.GetTileY(latitude - (size.Height / 2.0), 0);
double bottom = TileGenerator.GetTileY(latitude + (size.Height / 2.0), 0);
double height = (top - bottom) * TileGenerator.TileSize;
double width = (right - left) * TileGenerator.TileSize;
int zoom = Math.Min(TileGenerator.GetZoom(this.ActualHeight / height), TileGenerator.GetZoom(this.ActualWidth / width));
this.Center(latitude, longitude, zoom);
}
private void RepositionChildren()
{
foreach (UIElement element in this.Children)
{
double latitude = GetLatitude(element);
double longitude = GetLongitude(element);
if (latitude != double.PositiveInfinity && longitude != double.PositiveInfinity)
{
double x = (TileGenerator.GetTileX(longitude, this.Zoom) - _offsetX.Tile) * TileGenerator.TileSize;
double y = (TileGenerator.GetTileY(latitude, this.Zoom) - _offsetY.Tile) * TileGenerator.TileSize;
Canvas.SetLeft(element, x);
Canvas.SetTop(element, y);
element.RenderTransform = _translate;
}
}
}
