# number(ofVertices:inPath:at:) Provides the number of vertices in the given path at the given time. ``` func number(ofVertices numVertices: UnsafeMutablePointer!, inPath pathID: FxPathID!, at time: CMTime) throws ``` ## Parameters `numVertices` Upon return, contains the number of vertices in the path. `pathID` The ID of the path to query. `time` The time at which you wish to find the number of vertices in the path. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)