Android touch position problem

i am trying to get touch position and m getting it. The problem is that while placing texture2d my 0,0 is on left-top, and my Input.getTouch(0).position.x / y is giving me 0,0 at left-bottom.

I have a steering wheel on screen I want to rotate it with touch.

any Idea???

Problem is solved… It took time for me but after some math calculation got the answer…
actually texture 2d is placed with origin at left top. but while getting touch position origin is at left bottom.

You can use Screen.height-touchPosition.y to adjust it.