length(_:ofPath:at:)

Declaration

func length(_ length: UnsafeMutablePointer<Double>!, ofPath pathID: FxPathID!, at time: CMTime) throws

Parameters

• length:

  Upon return, contains the length of the path.

• pathID:

  The ID of the path to query.

• time:

  The time at which you wish to find the length of the path.

See Also

Getting Path Information

• numberOfPaths(at:)
• pathID(_:for:)
• name(_:ofPath:)
• isPath(_:open:at:)
• isPath(_:inverted:at:)
• style(_:ofPath:)
• length(_:ofSegment:ofPath:at:)
• number(ofVertices:inPath:at:)
• vertex(_:at:ofPath:at:)
• point(_:atPercentageOfDistance:alongPath:at:)
• point(_:atPercentageOfParameter:alongPath:at:)
• blendMode(_:ofPath:)
• pathGeometryInfo(_:forPath:at:)