Create ARReferenceImage programmatically

Question

I am downloading images from the database and want to use them as ARReferenceImage, instead of manually adding them to Xcode asset folder.

Code

    let image = #imageLiteral(resourceName: "mike")
    let cgImage = image.cgImage

    guard let referenceImages = ARReferenceImage.init(cgImage, orientation: .portrait, physicalWidth: 100) else {
        fatalError("Failed to load image")
    }

Error

Ambiguous reference to member 'init(_:orientation:physicalWidth:)'

Answer 1

CGImagePropertyOrientation not support .portrait Please use below support:

public enum CGImagePropertyOrientation : UInt32 {


    case up // 0th row at top,    0th column on left   - default orientation

    case upMirrored // 0th row at top,    0th column on right  - horizontal flip

    case down // 0th row at bottom, 0th column on right  - 180 deg rotation

    case downMirrored // 0th row at bottom, 0th column on left   - vertical flip

    case leftMirrored // 0th row on left,   0th column at top

    case right // 0th row on right,  0th column at top    - 90 deg CW

    case rightMirrored // 0th row on right,  0th column on bottom

    case left // 0th row on left,   0th column at bottom - 90 deg CCW
}

Your code:

 let referenceImages = ARReferenceImage(cgImage!, orientation: CGImagePropertyOrientation.up, physicalWidth: 100) 

Or

let referenceImages = ARReferenceImage.init(cgImage!, orientation: CGImagePropertyOrientation.up, physicalWidth: 100)

Answer 2

CGImagePropertyOrientation doesn't have a member named .portrait.

According to the documentation it has .up, .upMirrored, .down, .downMirrored, .leftMirrored, .right, .rightMirrored, .left. If you use one of these in your initializer it should work.

For example:

let referenceImage = ARReferenceImage(cgImage, orientation: .up, physicalWidth: 100)