UGUI笔记——3D坐标转换成UGUI坐标

UGUI笔记------3D坐标转换成UGUI坐标

Canvas的模式为ScreenSpace-Camera

private void SetUIPosition(Vector3 worldPosition) 
{
      Vector3 screenPosition = RectTransformUtility.WorldToScreenPoint(mainCamera, worldPosition);
      Vector2 localPoint;
            if(RectTransformUtility.ScreenPointToLocalPointInRectangle(rectTransform.transform.parent.GetComponent<RectTransform>(),screenPosition,uiCamera,out localPoint)) 
            {
                rectTransform.anchoredPosition = localPoint;
            }
}

Canvas的模式为ScreenSpace-Overlay

    private void SetUIPosition(Vector3 worldPosition) 
        {
            Vector3 screenPosition = RectTransformUtility.WorldToScreenPoint(GlobalDefine.mainCamera, worldPosition);
            Vector2 localPosition;
            if (RectTransformUtility.ScreenPointToLocalPointInRectangle(mRectTransform.transform.parent.GetComponent<RectTransform>(), screenPosition, null, out localPosition))
            {
                mRectTransform.anchoredPosition = localPosition;
            }
        }