Returns an affine transform that maps normalized image coordinates
into a coordinate space suitable for rendering the camera image
in the given viewport and orientation.
This method replicates ARKit’s displayTransform(for:viewportSize:) by computing a transform that accounts for the camera image’s
aspect ratio, the device’s interface orientation, and the desired
viewport size.
- Parameters:
- orientation: The current interface orientation of the device’s UI.
- viewportSize: The size of the viewport in which the image will be rendered.
- imageSize: The dimensions of the camera image.
- Returns: A CGAffineTransform that converts normalized image coordinates
(with origin at top-left, ranging from 0.0 to 1.0) into the coordinate
space of the viewport, accounting for orientation and aspect ratio.
Returns an affine transform that maps normalized image coordinates
into a coordinate space suitable for rendering the camera image
in the given viewport and orientation.
This method replicates ARKit’s
displayTransform(for:viewportSize:)by computing a transform that accounts for the camera image’s
aspect ratio, the device’s interface orientation, and the desired
viewport size.
- Parameters:
- orientation: The current interface orientation of the device’s UI.
- viewportSize: The size of the viewport in which the image will be rendered.
- imageSize: The dimensions of the camera image.
- Returns: A
CGAffineTransformthat converts normalized image coordinates(with origin at top-left, ranging from 0.0 to 1.0) into the coordinate
space of the viewport, accounting for orientation and aspect ratio.