public MarkerImage(string url, Size size, Point origin, Point anchor, Size scaledSize)
 {
     this.Url = url;
     this.Size = size;
     this.Origin = origin;
     this.Anchor = anchor;
     this.ScaledSize = scaledSize;
 }
 public MarkerImage(string url, Size size, Point origin)
     : this(url, size, origin, null, null)
 {
 }
 public MarkerImage(string url, Size size, Point origin, Point anchor)
     : this(url, size, origin, anchor, null)
 {
 }
 public MarkerImage(string url, Size size)
     : this(url, size, null, null, null)
 {
 }