func clipToLayer (opacity: Double, options: GraphicsContext .ClipOptions , content: (inout GraphicsContext ) throws -> Void) rethrows
Adds a clip shape that you define in a new layer to the context’s array of clip shapes.
var clipBoundingRect : CGRect
The bounding rectangle of the intersection of all current clip shapes in the current user space.
struct ClipOptions
Options that affect the use of clip shapes.