//-------------------------------------------------------------------------
// Centres the map on the given point and sets the view width and height
public void ChangeView(double centreLatDeg, double centreLonDeg, double widthDeg, double heightDeg)
{
Point a = new Point(centreLonDeg - widthDeg / 2, centreLatDeg - heightDeg / 2);
Point b = new Point(centreLonDeg + widthDeg / 2, centreLatDeg + heightDeg / 2);
if (DataTransform != null)
{
a = DataTransform.DataToViewport(a);
b = DataTransform.DataToViewport(b);
}
Dispatcher.Invoke(() =>
{
Visible = new DataRect(a, b);
});
}
//-------------------------------------------------------------------------
// Centres the map on the given point without changing the zoom level/width/height
public void CentreOn(double latDeg, double lonDeg)
{
if (latDeg.IsNaN() || lonDeg.IsNaN())
{
return;
}
var centre = new Point(lonDeg, latDeg);
if (DataTransform != null)
{
centre = DataTransform.DataToViewport(centre);
}
centre.X -= (Visible.Size.Width / 2);
centre.Y -= (Visible.Size.Height / 2);
Visible = new DataRect(centre, Visible.Size);
}