private void CenterPointPropertyChanged(Point centerPoint)
{
if (!internalPropertyChange)
{
var center = MapProjection.PointToLocation(centerPoint);
center.Longitude = Location.NormalizeLongitude(center.Longitude);
InternalSetValue(CenterProperty, center);
UpdateTransform();
}
}
/// <summary>
/// Sets the TargetZoomLevel and TargetCenter properties so that the specified bounding box
/// fits into the current viewport. The TargetHeading property is set to zero.
/// </summary>
public void ZoomToBounds(BoundingBox boundingBox)
{
var rect = MapProjection.BoundingBoxToRect(boundingBox);
var center = new Point(rect.X + rect.Width / 2d, rect.Y + rect.Height / 2d);
var scale = Math.Min(RenderSize.Width / rect.Width, RenderSize.Height / rect.Height)
* MapProjection.TrueScale / MapProjection.PixelPerDegree;
TargetZoomLevel = Math.Log(scale, 2d);
TargetCenter = MapProjection.PointToLocation(center);
TargetHeading = 0d;
}
/// <summary>
/// Sets the TargetZoomLevel and TargetCenter properties so that the specified bounding box
/// fits into the current viewport. The TargetHeading property is set to zero.
/// </summary>
public void ZoomToBounds(BoundingBox boundingBox)
{
if (boundingBox != null && boundingBox.HasValidBounds)
{
var rect = MapProjection.BoundingBoxToRect(boundingBox);
var center = new Point(rect.X + rect.Width / 2d, rect.Y + rect.Height / 2d);
var scale0 = 1d / MapProjection.GetViewportScale(0d);
var lonScale = scale0 * RenderSize.Width / rect.Width;
var latScale = scale0 * RenderSize.Height / rect.Height;
var lonZoom = Math.Log(lonScale, 2d);
var latZoom = Math.Log(latScale, 2d);
TargetZoomLevel = Math.Min(lonZoom, latZoom);
TargetCenter = MapProjection.PointToLocation(center);
TargetHeading = 0d;
}
}
