public void OnMovingTipSetEvent(BlobCentre movingTip)
 {
     MovingTip = movingTip;
 }
 public void ResetPoints()
 {
     Anchor    = new BlobCentre();
     MovingTip = new BlobCentre();
 }
 public void OnAnchorSetEvent(BlobCentre anchor)
 {
     Anchor = anchor;
 }