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AudioKit/Flow 1.0.1
Generic node graph editor
⭐️ 56
🕓 4 weeks ago
iOS macOS
.package(url: "https://github.com/AudioKit/Flow.git", from: "1.0.1")



Generic node graph editor. Generate a Patch from your own data model. Update your data model when the Patch changes.


func simplePatch() -> Patch {
    let generator = Node(name: "generator", outputs: ["out"])
    let processor = Node(name: "processor", inputs: ["in"], outputs: ["out"])
    let mixer = Node(name: "mixer", inputs: ["in1", "in2"], outputs: ["out"])
    let output = Node(name: "output", inputs: ["in"])

    let nodes = [generator, processor, generator, processor, mixer, output]

    let wires = Set([Wire(from: OutputID(0, 0), to: InputID(1, 0)),
                     Wire(from: OutputID(1, 0), to: InputID(4, 0)),
                     Wire(from: OutputID(2, 0), to: InputID(3, 0)),
                     Wire(from: OutputID(3, 0), to: InputID(4, 1)),
                     Wire(from: OutputID(4, 0), to: InputID(5, 0))])

    var patch = Patch(nodes: nodes, wires: wires)
    patch.recursiveLayout(nodeIndex: 5, at: CGPoint(x: 800, y: 50))
    return patch

struct ContentView: View {
    @State var patch = simplePatch()
    @State var selection = Set<NodeIndex>()

    var body: some View {
        NodeEditor(patch: $patch, selection: $selection)
            .onNodeMoved { index, location in
                print("Node at index \(index) moved to \(location)")
            .onWireAdded { wire in
                print("Added wire: \(wire)")
            .onWireRemoved { wire in
                print("Removed wire: \(wire)")


The API Reference can be found on the AudioKit Website. Package contains a demo project and a playground to help you get started quickly.

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