/// Credit ??
/// Sourced from - http://forum.unity3d.com/threads/find-anchoredposition-of-a-recttransform-relative-to-another-recttransform.330560/#post-2300992

namespace UnityEngine.UI.Extensions
{
  
  public static class RectTransformExtension
  {
/// <summary>
/// Converts the anchoredPosition of the first RectTransform to the second RectTransform,
/// taking into consideration offset, anchors and pivot, and returns the new anchoredPosition
/// </summary>
public static Vector2 switchToRectTransform(this RectTransform from, RectTransform to)
  {
  Vector2 localPoint;
  Vector2 fromPivotDerivedOffset = new Vector2(from.rect.width * from.pivot.x + from.rect.xMin, from.rect.height * from.pivot.y + from.rect.yMin);
  Vector2 screenP = RectTransformUtility.WorldToScreenPoint(null, from.position);
  screenP += fromPivotDerivedOffset;
  RectTransformUtility.ScreenPointToLocalPointInRectangle(to, screenP, null, out localPoint);
  Vector2 pivotDerivedOffset = new Vector2(to.rect.width * to.pivot.x + to.rect.xMin, to.rect.height * to.pivot.y + to.rect.yMin);
  return to.anchoredPosition + localPoint - pivotDerivedOffset;
  }
  }
}