init(cgImage:scale:orientation:)
Initializes and returns an image object with the specified scale and orientation factors.
Declaration
init(cgImage: CGImage, scale: CGFloat, orientation: UIImage.Orientation)Parameters
- cgImage:
The Quartz image object.
- scale:
The scale factor to assume when interpreting the image data. Applying a scale factor of 1.0 results in an image whose size matches the pixel-based dimensions of the image. Applying a different scale factor changes the size of the image as reported by the Size property.
- orientation:
The orientation of the image data. You can use this parameter to specify any rotation factors applied to the image.
Return Value
An initialized UIImage object. In Objective-C, this method returns nil if the ciImage parameter is nil.