screen position of element in layout

Questions & Answers
1

I have a horizontal layout that has 3 children , i want to get the actual pixel screen position of the second child, the grid, i need this position because i am taking a screenshot of the second child, i can successfully get the width and height. see screenshot

81339-dws-main.png
81339-dws-main.png1275×710 171 KB

What i tried, i need the opposite of RectTransformUtility.ScreenPointToLocalPointInRectangle

public Rect GetGridSize() {
		Rect rect = gridTransform.rect;
		//float scaleX = Screen.width / canvasScaler.referenceResolution.x;
		bool landscape = Screen.width > Screen.height;
		//float width = rect.width * scaleX;
		CanvasScale =  new Vector2((float) Screen.width / canvasScaler.referenceResolution.x, (float)Screen.height / canvasScaler.referenceResolution.y);
		float scaleY = ((landscape) ? CanvasScale.y : CanvasScale.x);
		float scaleX = ((landscape) ? CanvasScale.x : CanvasScale.y);
		float height = Mathf.Round(rect.height * scaleY);
		float layoutLeft = gridTransform.parent.GetComponent<RectTransform> ().offsetMin.x;
		return new Rect((layoutLeft + gridTransform.offsetMin.x) * scaleX, Mathf.Round(25f * scaleY), height, height);
	}
2

I answered my own question, i had to convert to world coordinates first and then to screen point. check revised method below. This question helped

public Rect GetGridSize() {
		Rect rect = gridTransform.rect;
		Vector3[] corners = new Vector3[4];
		gridTransform.GetWorldCorners(corners);
		Vector2 screenPoint = RectTransformUtility.WorldToScreenPoint (Camera.main,corners[0]);
		print ("grid x " + screenPoint.x);
		//float scaleX = Screen.width / canvasScaler.referenceResolution.x;
		bool landscape = Screen.width > Screen.height;
		//float width = rect.width * scaleX;
		CanvasScale =  new Vector2((float) Screen.width / canvasScaler.referenceResolution.x, (float)Screen.height / canvasScaler.referenceResolution.y);
		float scaleY = ((landscape) ? CanvasScale.y : CanvasScale.x);
		float scaleX = ((landscape) ? CanvasScale.x : CanvasScale.y);
		float height = Mathf.Round(rect.height * scaleY);
		//float layoutLeft = gridTransform.parent.GetComponent<RectTransform> ().offsetMin.x;
		return new Rect(screenPoint.x, Mathf.Round(25f * scaleY), height, height);
	}