Item {
    Item {
        width:rect1.width
        height: rect1.height
        x: 30
        y: 55

        Rectangle {
            id: rect1
            width: 50
            height: width
        }
    }


    Item {
        width:rect2.width
        height: rect2.height
        x: 3
        y: 79

        //How to get the coordinates without referring to parent's coordinates to move rect2 so that its center is in the center of rect1
        Rectangle {
            id: rect2
            width: 43
            height: width
        }
    }
}