ios - Combine UILabel and UIImage using CGContext -


i'm having trouble combining uilabel , uiimage 1 single uiimage.

i have uilabel can translated, scaled , rotated user on top of uiimage(view).

when try combine 1 uiimage using cgcontext, cgcontexttranslatectm , cgcontextrotatectm label not positioned right when rotated. rotation correct, position not. doing wrong?

there several answers on stack overflow discusses aspects of (combine uilabels (with proper origins) uiimage) not take in account rotation factor.

i've attached image can see result.

func bake(image:uiimage, withlabel label: uilabel, outputsize:cgsize) -> uiimage? {     let inputsize:cgsize = image.size     let scale = max(outputsize.width / inputsize.width, outputsize.height / inputsize.height)     let scaledsize = cgsizemake(inputsize.width * scale, inputsize.height * scale)     let center = cgpointmake(outputsize.width / 2, outputsize.height / 2)     let outputrect = cgrectmake(center.x - scaledsize.width/2, center.y - scaledsize.height/2, scaledsize.width, scaledsize.height)      uigraphicsbeginimagecontextwithoptions(outputsize, true, 0.0)      let context:cgcontextref = uigraphicsgetcurrentcontext()!     cgcontextsetinterpolationquality(context, cginterpolationquality.high)     image.drawinrect(outputrect)      if let text = label.text {         if text.characters.count > 0 {             var range:nsrange? = nsmakerange(0, text.characters.count)             let drawpoint = cgpointmake(                 label.frame.origin.x / label.superview!.frame.width * outputsize.width,                 label.frame.origin.y / label.superview!.frame.height * outputsize.height)             let originalfont = label.font              label.font = uifont(name: label.font!.fontname, size: label.font!.pointsize / label.superview!.frame.width * outputsize.width)             let attributes = label.attributedtext?.attributesatindex(0, effectiverange: &range!)              let angle = atan2(label.transform.b, label.transform.a)              cgcontexttranslatectm(context, drawpoint.x, drawpoint.y)             cgcontextrotatectm(context, angle)              text.drawinrect(outputrect, withattributes: attributes)              label.font = originalfont         }     }      let outputimage = uigraphicsgetimagefromcurrentimagecontext()     uigraphicsendimagecontext()     return outputimage }

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