ContoursObservation

topLevelContours

get topLevelContours(): Array<ContoursObservation_Contour>

var topLevelContours: [ContoursObservation.Contour] { get }

An array of contours that don’t have another contour enclosing them. This array constitutes the top of the contour hierarchy. You can iterate over each VNContour instance to determine its children.

confidence

get confidence(): number

let confidence: Float

The level of confidence normalized to `[0, 1]` where `1` is most confident. The only exception is results coming from `CoreMLRequest`, where confidence values are forwarded as is from relevant CoreML models

description

get description(): string

var description: String { get }

A textual representation of this instance. Calling this property directly is discouraged. Instead, convert an instance of any type to a string by using the `String(describing:)` initializer. This initializer works with any type, and uses the custom `description` property for types that conform to `CustomStringConvertible`: struct Point: CustomStringConvertible { let x: Int, y: Int var description: String { return "(\(x), \(y))" } } let p = Point(x: 21, y: 30) let s = String(describing: p) print(s) // Prints "(21, 30)" The conversion of `p` to a string in the assignment to `s` uses the `Point` type's `description` property.

contourCount

get contourCount(): number

var contourCount: Int { get }

The total number of detected contours. Use this value to determine the number of indices available for calling `contour(at:)`.

contourAtIndex

contourAtIndex(index: number): (ContoursObservation_Contour) | null

func contourAtIndex(_ index: Int) -> ContoursObservation.Contour?

Retrieves the contour object at the specified index, irrespective of hierarchy. - Parameters: - contourIndex: The index of the contour to retrieve. Valid values are in the range of 0 to contourCount - 1. - Returns: The contour object at the specified index path, or `nil` if the index path is invalid.

normalizedPath

get normalizedPath(): _CoreGraphics_CGPath

var normalizedPath: CGPath { get }

The detected contours as a path object in normalized coordinates.

countourAtIndexPath

countourAtIndexPath(indexPath: _Foundation_IndexPath): (ContoursObservation_Contour) | null

func countourAtIndexPath(_ indexPath: IndexPath) -> ContoursObservation.Contour?

Retrieves the contour object at the specified index path. - Parameters: - indexPath: The hierarchical index path to the contour. - Returns: The contour object at the specified index, or `nil` if the index is invalid.

originatingRequestDescriptor

get originatingRequestDescriptor(): (RequestDescriptor) | null

let originatingRequestDescriptor: RequestDescriptor?

The descriptor of the request that produced the observation.

uuid

get uuid(): string

let uuid: UUID

The unique identifier for the observation.

timeRange

get timeRange(): (_CoreMedia_CMTimeRange) | null

let timeRange: CMTimeRange?

The time range of the reported observation. When evaluating a sequence of image buffers, use this property to determine each observation’s start time and duration.

init

static init(observation: VNContoursObservation): ContoursObservation

init(_ observation: VNContoursObservation)