Unity UGUI坐标转为3D世界坐标 世界左边转为UGUI坐标

UGUI坐标转为世界坐标

Vector3 scr = RectTransformUtility.WorldToScreenPoint (canvas.worldCamera, obj.transform.position);scr.z = 0;scr.z = Mathf.Abs (Camera.main.transform.position.z - transform.position.z);currentObj.transform.position = Camera.main.ScreenToWorldPoint (scr);

世界坐标转为UGUI坐标

Vector2 pos;RectTransformUtility.ScreenPointToLocalPointInRectangle(canvas.transform as RectTransform, Camera.main.WorldToScreenPoint(obj.transform.position), canvas.worldCamera, out pos);RectTransform rect =deleteBtn.transform.transform as RectTransform;rect.anchoredPosition = pos;

参考 http://tieba.baidu.com/p/4477632392