SkyleSwiftSDK

This is the official swift SDK for the Skyle eye-tracker sold by the eyeV GmbH. The SDK is based on the Skyle gRPC protos and Apples Combine framework.

It works on >= macOS 10.15 Catalina and >= iPadOS 13

Usage

Important: Update to the latest firmware (>= v3.0) on your eye tracker before using this!

You need to install the following to get RNDIS support on macOS: hoRNDIS

FOLLOW THESE STEPS TO INSTALL ON BIG SUR

Example

To dive straight in you can generate a Playground with the repository using arena.

Just follow the install instructions and execute the following:

arena https://github.com/eyev-de/skyle-swift-sdk@from:1.0.0

After that paste the following code into the Playground file, connect Skyle to your computer and start the Playground. The SwiftUI part will work in an iPadOS >= 13 app (on device and in the Simulator) and a Mac Catalyst app.

import SkyleSwiftSDK
import PlaygroundSupport
import SwiftUI
import AppKit

struct ContentView: View {
    @ObservedObject var et: ET
    @ObservedObject var gaze: ET.Gaze
    @ObservedObject var version: ET.Version
    @ObservedObject var positioning: ET.Positioning
    @ObservedObject var control: ET.Control
    @ObservedObject var stream: ET.MjpegStream
    
    init() {
        let et = ET()
        self.et = et
        self.gaze = et.gaze // please use makeGaze() instead
        self.version = et.version // please use makeVersion() instead
        self.positioning = et.positioning // please use makePositioning() instead
        self.control = et.control // please use makeControl() instead
        self.stream = et.stream // please use makeStream() instead
    }
    
    var body: some View {
        VStack {
            Text("Welcome to Skyle").font(.system(.title)).padding()
            Text("Frimware version: \(self.version.firmware)")
            Text("Current gaze point: x: \(Int(self.gaze.point.x.rounded())) y: \(Int(self.gaze.point.y.rounded()))")
            GeometryReader { proxy in
                ZStack {
                    if self.stream.cgimage != nil {
                        Image(nsImage: NSImage(cgImage: self.stream.cgimage!, size: NSSize(width: self.stream.cgimage!.width, height: self.stream.cgimage!.height))).resizable()
                            .frame(width: 100 / self.factor, height: 100)
                    } else {
                    Rectangle()
                        .fill(Color.gray)
                    }
                    if self.positioning.isPresent {
                        Circle().fill(Color.blue)
                        .frame(width: 10, height: 10)
                        .position(x: self.calculateX(self.positioning.position.left.x, proxy: proxy), y: self.calculateY(self.positioning.position.left.y, proxy: proxy))
                        Circle().fill(Color.blue)
                        .frame(width: 10, height: 10)
                        .position(x: self.calculateX(self.positioning.position.right.x, proxy: proxy), y: self.calculateY(self.positioning.position.right.y, proxy: proxy))
                    }
                }
            }
            .frame(width: 100 / self.factor, height: 100)
        }
        .frame(maxWidth: .infinity, maxHeight: .infinity)
        .onReceive(self.et.$connectivity) { connected in
            if connected == .ready {
                self.gaze.start()
                self.positioning.start()
                self.control.stream = true
                self.stream.start()
            }
        }
    }
    
    private var factor: CGFloat {
        return CGFloat(ET.Positioning.Height / ET.Positioning.Width)
    }
    
    private func calculateX(_ value: Double, proxy: GeometryProxy) -> CGFloat {
        let width = Double(proxy.size.height / self.factor)
        let v = CGFloat(value / ET.Positioning.Width * width)
        return v + (proxy.size.width - proxy.size.height / self.factor) / 2
    }
    
    private func calculateY(_ value: Double, proxy: GeometryProxy) -> CGFloat {
        let height = Double(proxy.size.height)
        return CGFloat(value / ET.Positioning.Height * height)
    }
}

PlaygroundPage.current.setLiveView(ContentView())

Swift Package Manager

You can also include SkyleSwiftSDK with SPM:

Just add the following to your dependencies in your Package.swift file.

.package(url: "https://github.com/eyev-de/skyle-swift-sdk.git", from: "1.0.0"),

Alternatively, you can add it to your project in Xcode. Go to File -> Swift Packages -> Add Package Dependency...

Documentation

Documentation

Meta

(c) 2020 eyeV GmbH, written by Konstantin Wachendorff

Distributed under the MIT license. See LICENSE for more information.

Also see our other repos here

Support

If you bought the Skyle eye tracker and need support, please contact [email protected].