Error in swift code

[gipfelen]

There ist a small error in "convertRect(fromViewRect viewRect : CGRect)"

let imageTopLeft = convertPoint(fromImagePoint: viewTopLeft) let imageBottomRight = convertPoint(fromImagePoint: viewBottomRight)

should be replaced with

let imageTopLeft = convertPoint(fromViewPoint: viewTopLeft) let imageBottomRight = convertPoint(fromViewPoint: viewBottomRight)