public static void GetInRange(CKNode node, MKMapRect range, Action <IMKAnnotation> find)
{
if (node.Count != null)
{
if (MKMapRect.Intersects(node.Bound, range) == false)
{
return;
}
CKPoint point = node.Points;
while (point != null)
{
if (range.Contains(point.Point))
{
find?.Invoke(point.Annotation);
}
point = point.Next;
}
}
if (node.NW != null)
{
CKNode.GetInRange(node.NW, range, find);
CKNode.GetInRange(node.NE, range, find);
CKNode.GetInRange(node.SW, range, find);
CKNode.GetInRange(node.SE, range, find);
}
}
public static void FindInRange(CKTree tree, MKMapRect range, Action <IMKAnnotation> find)
{
CKNode.GetInRange(tree.Root, range, find);
}