void AnchorTypeChange()
 {
     if (sizeType == SizeType.Anchor)
     {
         GetParentInfo();
         var au = ModelElement.AntiAnchorEx(transform.localPosition, anchorType, pp, psize);
         margin.left  = au.x;
         margin.right = au.y;
     }
     lastAnchorType = anchorType;
 }