├── .gitignore ├── .travis.yml ├── LICENSE ├── README.md ├── Suncalc-Swift.xcworkspace └── contents.xcworkspacedata ├── suncalc-example ├── suncalc-example.xcodeproj │ ├── project.pbxproj │ └── project.xcworkspace │ │ └── contents.xcworkspacedata ├── suncalc-example │ ├── AppDelegate.swift │ ├── Base.lproj │ │ ├── LaunchScreen.xib │ │ └── Main.storyboard │ ├── Images.xcassets │ │ └── AppIcon.appiconset │ │ │ └── Contents.json │ ├── Info.plist │ └── ViewController.swift └── suncalc-exampleTests │ ├── Info.plist │ └── suncalc_exampleTests.swift ├── suncalc-swift.podspec └── suncalc ├── models ├── EquatorialCoordinates.swift ├── GeocentricCoordinates.swift ├── MoonIllumination.swift ├── MoonPosition.swift ├── MoonTimes.swift └── SunPosition.swift ├── suncalc.swift └── utils ├── Constants.swift ├── DateUtils.swift ├── MoonUtils.swift ├── PositionUtils.swift ├── SunUtils.swift └── TimeUtils.swift /.gitignore: -------------------------------------------------------------------------------- 1 | # Xcode 2 | # 3 | .DS_Store 4 | */build/* 5 | build/ 6 | *.pbxuser 7 | !default.pbxuser 8 | *.mode1v3 9 | !default.mode1v3 10 | *.mode2v3 11 | !default.mode2v3 12 | *.perspectivev3 13 | !default.perspectivev3 14 | xcuserdata 15 | xcshareddata 16 | profile 17 | *.moved-aside 18 | DerivedData 19 | *.hmap 20 | *.ipa 21 | *.xcuserstate 22 | *.xccheckout 23 | 24 | # CocoaPods 25 | Pods/ 26 | -------------------------------------------------------------------------------- /.travis.yml: -------------------------------------------------------------------------------- 1 | language: objective-c 2 | osx_image: xcode10.1 3 | script: "xcodebuild test -workspace Suncalc-Swift.xcworkspace -scheme suncalc-example -destination \"platform=iOS Simulator,name=iPhone 5s\"" 4 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | The MIT License (MIT) 2 | 3 | Copyright (c) 2014 Chimani, LLC. 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | 23 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | suncalc-swift 2 | ============= 3 | 4 | This is a swift port for iOS of https://github.com/mourner/suncalc 5 | 6 | This code is based on the original Javascript suncalc by Vladimir Agafonkin ("mourner"). 7 | 8 | ```swift 9 | // get today's sunlight times for London 10 | 11 | let date:Date = Date() 12 | let sunCalc:SunCalc = SunCalc.getTimes(date, latitude: 51.5, longitude: -0.1) 13 | 14 | var formatter:DateFormatter = DateFormatter() 15 | formatter.dateFormat = "HH:mm" 16 | formatter.timeZone = TimeZone(abbreviation: "GMT") 17 | var sunriseString:String = formatter.string(from: sunCalc.sunrise) 18 | println("sunrise is at \(sunriseString)") 19 | 20 | let sunPos:SunPosition = SunCalc.getSunPosition(date, latitude: 51.5, longitude: -0.1) 21 | 22 | var sunriseAzimuth:Double = sunPos.azimuth * 180 / Constants.PI() 23 | println("sunrise azimuth: \(sunriseAzimuth)") 24 | ``` 25 | -------------------------------------------------------------------------------- /Suncalc-Swift.xcworkspace/contents.xcworkspacedata: -------------------------------------------------------------------------------- 1 | 2 | 4 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /suncalc-example/suncalc-example.xcodeproj/project.pbxproj: -------------------------------------------------------------------------------- 1 | // !$*UTF8*$! 2 | { 3 | archiveVersion = 1; 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555 | defaultConfigurationIsVisible = 0; 556 | defaultConfigurationName = Release; 557 | }; 558 | /* End XCConfigurationList section */ 559 | }; 560 | rootObject = 11C516B019DDDD9200553C5A /* Project object */; 561 | } 562 | -------------------------------------------------------------------------------- /suncalc-example/suncalc-example.xcodeproj/project.xcworkspace/contents.xcworkspacedata: -------------------------------------------------------------------------------- 1 | 2 | 4 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /suncalc-example/suncalc-example/AppDelegate.swift: -------------------------------------------------------------------------------- 1 | // 2 | // AppDelegate.swift 3 | // suncalc-example 4 | // 5 | // Created by Shaun Meredith on 10/2/14. 6 | // 7 | 8 | import UIKit 9 | 10 | @UIApplicationMain 11 | class AppDelegate: UIResponder, UIApplicationDelegate { 12 | 13 | var window: UIWindow? 14 | 15 | 16 | func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool { 17 | // Override point for customization after application launch. 18 | return true 19 | } 20 | 21 | func applicationWillResignActive(_ application: UIApplication) { 22 | // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state. 23 | // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game. 24 | } 25 | 26 | func applicationDidEnterBackground(_ application: UIApplication) { 27 | // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later. 28 | // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits. 29 | } 30 | 31 | func applicationWillEnterForeground(_ application: UIApplication) { 32 | // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background. 33 | } 34 | 35 | func applicationDidBecomeActive(_ application: UIApplication) { 36 | // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface. 37 | } 38 | 39 | func applicationWillTerminate(_ application: UIApplication) { 40 | // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:. 41 | } 42 | 43 | 44 | } 45 | 46 | -------------------------------------------------------------------------------- /suncalc-example/suncalc-example/Base.lproj/LaunchScreen.xib: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 20 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | -------------------------------------------------------------------------------- /suncalc-example/suncalc-example/Base.lproj/Main.storyboard: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 29 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | -------------------------------------------------------------------------------- /suncalc-example/suncalc-example/Images.xcassets/AppIcon.appiconset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "iphone", 5 | "size" : "20x20", 6 | "scale" : "2x" 7 | }, 8 | { 9 | "idiom" : "iphone", 10 | "size" : "20x20", 11 | "scale" : "3x" 12 | }, 13 | { 14 | "idiom" : "iphone", 15 | "size" : "29x29", 16 | "scale" : "2x" 17 | }, 18 | { 19 | "idiom" : "iphone", 20 | "size" : "29x29", 21 | "scale" : "3x" 22 | }, 23 | { 24 | "idiom" : "iphone", 25 | "size" : "40x40", 26 | "scale" : "2x" 27 | }, 28 | { 29 | "idiom" : "iphone", 30 | "size" : "40x40", 31 | "scale" : "3x" 32 | }, 33 | { 34 | "idiom" : "iphone", 35 | "size" : "60x60", 36 | "scale" : "2x" 37 | }, 38 | { 39 | "idiom" : "iphone", 40 | "size" : "60x60", 41 | "scale" : "3x" 42 | }, 43 | { 44 | "idiom" : "ipad", 45 | "size" : "20x20", 46 | "scale" : "1x" 47 | }, 48 | { 49 | "idiom" : "ipad", 50 | "size" : "20x20", 51 | "scale" : "2x" 52 | }, 53 | { 54 | "idiom" : "ipad", 55 | "size" : "29x29", 56 | "scale" : "1x" 57 | }, 58 | { 59 | "idiom" : "ipad", 60 | "size" : "29x29", 61 | "scale" : "2x" 62 | }, 63 | { 64 | "idiom" : "ipad", 65 | "size" : "40x40", 66 | "scale" : "1x" 67 | }, 68 | { 69 | "idiom" : "ipad", 70 | "size" : "40x40", 71 | "scale" : "2x" 72 | }, 73 | { 74 | "idiom" : "ipad", 75 | "size" : "76x76", 76 | "scale" : "1x" 77 | }, 78 | { 79 | "idiom" : "ipad", 80 | "size" : "76x76", 81 | "scale" : "2x" 82 | }, 83 | { 84 | "idiom" : "ipad", 85 | "size" : "83.5x83.5", 86 | "scale" : "2x" 87 | }, 88 | { 89 | "idiom" : "ios-marketing", 90 | "size" : "1024x1024", 91 | "scale" : "1x" 92 | } 93 | ], 94 | "info" : { 95 | "version" : 1, 96 | "author" : "xcode" 97 | } 98 | } -------------------------------------------------------------------------------- /suncalc-example/suncalc-example/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | en 7 | CFBundleExecutable 8 | $(EXECUTABLE_NAME) 9 | CFBundleIdentifier 10 | $(PRODUCT_BUNDLE_IDENTIFIER) 11 | CFBundleInfoDictionaryVersion 12 | 6.0 13 | CFBundleName 14 | $(PRODUCT_NAME) 15 | CFBundlePackageType 16 | APPL 17 | CFBundleShortVersionString 18 | 0.2 19 | CFBundleSignature 20 | ???? 21 | CFBundleVersion 22 | 2 23 | LSRequiresIPhoneOS 24 | 25 | UILaunchStoryboardName 26 | LaunchScreen 27 | UIMainStoryboardFile 28 | Main 29 | UIRequiredDeviceCapabilities 30 | 31 | armv7 32 | 33 | UISupportedInterfaceOrientations 34 | 35 | UIInterfaceOrientationPortrait 36 | UIInterfaceOrientationLandscapeLeft 37 | UIInterfaceOrientationLandscapeRight 38 | 39 | UISupportedInterfaceOrientations~ipad 40 | 41 | UIInterfaceOrientationPortrait 42 | UIInterfaceOrientationPortraitUpsideDown 43 | UIInterfaceOrientationLandscapeLeft 44 | UIInterfaceOrientationLandscapeRight 45 | 46 | 47 | 48 | -------------------------------------------------------------------------------- /suncalc-example/suncalc-example/ViewController.swift: -------------------------------------------------------------------------------- 1 | // 2 | // ViewController.swift 3 | // suncalc-example 4 | // 5 | // Created by Shaun Meredith on 10/2/14. 6 | // 7 | 8 | import UIKit 9 | 10 | class ViewController: UIViewController { 11 | 12 | @IBOutlet weak var timeLabel: UILabel! 13 | 14 | override func viewDidLoad() { 15 | super.viewDidLoad() 16 | let date:Date = Date() 17 | let sunCalc:SunCalc = SunCalc.getTimes(date: date, latitude: 51.5, longitude: -0.1) 18 | 19 | let formatter:DateFormatter = DateFormatter() 20 | formatter.dateFormat = "HH:mm" 21 | formatter.timeZone = TimeZone(abbreviation: "GMT") 22 | let sunriseString:String = formatter.string(from: sunCalc.sunrise) 23 | timeLabel.text = sunriseString 24 | } 25 | 26 | override func didReceiveMemoryWarning() { 27 | super.didReceiveMemoryWarning() 28 | // Dispose of any resources that can be recreated. 29 | } 30 | 31 | 32 | } 33 | 34 | -------------------------------------------------------------------------------- /suncalc-example/suncalc-exampleTests/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | en 7 | CFBundleExecutable 8 | $(EXECUTABLE_NAME) 9 | CFBundleIdentifier 10 | $(PRODUCT_BUNDLE_IDENTIFIER) 11 | CFBundleInfoDictionaryVersion 12 | 6.0 13 | CFBundleName 14 | $(PRODUCT_NAME) 15 | CFBundlePackageType 16 | BNDL 17 | CFBundleShortVersionString 18 | 1.0 19 | CFBundleSignature 20 | ???? 21 | CFBundleVersion 22 | 1 23 | 24 | 25 | -------------------------------------------------------------------------------- /suncalc-example/suncalc-exampleTests/suncalc_exampleTests.swift: -------------------------------------------------------------------------------- 1 | // 2 | // suncalc_exampleTests.swift 3 | // suncalc-exampleTests 4 | // 5 | // Created by Shaun Meredith on 10/2/14. 6 | // 7 | 8 | import UIKit 9 | import XCTest 10 | 11 | let NEARNESS = 1e-9 12 | 13 | class suncalc_exampleTests: XCTestCase { 14 | var date:Date = Date() 15 | var LAT:Double = 50.5 16 | var LNG:Double = 30.5 17 | 18 | override func setUp() { 19 | super.setUp() 20 | var calendar:Calendar = Calendar(identifier: Calendar.Identifier.gregorian) 21 | calendar.timeZone = TimeZone(abbreviation: "GMT")! 22 | let components:DateComponents = DateComponents(year: 2013, month: 3, day: 5) 23 | 24 | self.date = calendar.date(from: components)! 25 | } 26 | 27 | override func tearDown() { 28 | super.tearDown() 29 | } 30 | 31 | func test_sun_getTimes() { 32 | let sunCalc:SunCalc = SunCalc.getTimes(date: date, latitude: LAT, longitude: LNG) 33 | 34 | let formatter:DateFormatter = DateFormatter() 35 | formatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss'Z'" 36 | formatter.timeZone = TimeZone(abbreviation: "GMT") 37 | 38 | XCTAssertEqual(formatter.string(from: sunCalc.solarNoon), "2013-03-05T10:10:57Z") 39 | XCTAssertEqual(formatter.string(from: sunCalc.nadir), "2013-03-04T22:10:57Z") 40 | XCTAssertEqual(formatter.string(from: sunCalc.sunrise), "2013-03-05T04:34:57Z") 41 | XCTAssertEqual(formatter.string(from: sunCalc.sunset), "2013-03-05T15:46:56Z") 42 | XCTAssertEqual(formatter.string(from: sunCalc.sunriseEnd), "2013-03-05T04:38:19Z") 43 | XCTAssertEqual(formatter.string(from: sunCalc.sunsetStart), "2013-03-05T15:43:34Z") 44 | XCTAssertEqual(formatter.string(from: sunCalc.dawn), "2013-03-05T04:02:17Z") 45 | XCTAssertEqual(formatter.string(from: sunCalc.dusk), "2013-03-05T16:19:36Z") 46 | XCTAssertEqual(formatter.string(from: sunCalc.nauticalDawn), "2013-03-05T03:24:31Z") 47 | XCTAssertEqual(formatter.string(from: sunCalc.nauticalDusk), "2013-03-05T16:57:22Z") 48 | XCTAssertEqual(formatter.string(from: sunCalc.nightEnd), "2013-03-05T02:46:17Z") 49 | XCTAssertEqual(formatter.string(from: sunCalc.night), "2013-03-05T17:35:36Z") 50 | XCTAssertEqual(formatter.string(from: sunCalc.goldenHourEnd), "2013-03-05T05:19:01Z") 51 | XCTAssertEqual(formatter.string(from: sunCalc.goldenHour), "2013-03-05T15:02:52Z") 52 | } 53 | 54 | func test_sun_getPosition() { 55 | let sunPos:SunPosition = SunCalc.getSunPosition(timeAndDate: date, latitude: LAT, longitude: LNG) 56 | XCTAssertEqual(sunPos.azimuth, -2.5003175907168385, accuracy: NEARNESS) 57 | XCTAssertEqual(sunPos.altitude, -0.7000406838781611, accuracy: NEARNESS) 58 | } 59 | 60 | func test_getMoonPosition() { 61 | let moonPos:MoonPosition = SunCalc.getMoonPosition(timeAndDate: date, latitude: LAT, longitude: LNG) 62 | XCTAssertEqual(moonPos.azimuth, -0.9783999522438226, accuracy: NEARNESS) 63 | XCTAssertEqual(moonPos.altitude, 0.006969727754891917, accuracy: NEARNESS) 64 | XCTAssertEqual(moonPos.distance, 364121.37256256294, accuracy: NEARNESS) 65 | } 66 | 67 | func test_getMoonIllumination() { 68 | let moonIllum:MoonIllumination = SunCalc.getMoonIllumination(timeAndDate: date) 69 | XCTAssertEqual(moonIllum.fraction, 0.4848068202456373, accuracy: NEARNESS) 70 | XCTAssertEqual(moonIllum.phase, 0.7548368838538762, accuracy: NEARNESS) 71 | XCTAssertEqual(moonIllum.angle, 1.6732942678578346, accuracy: NEARNESS) 72 | } 73 | 74 | func test_getMoonTimes() { 75 | var calendar:Calendar = Calendar(identifier: Calendar.Identifier.gregorian) 76 | calendar.timeZone = TimeZone(abbreviation: "GMT")! 77 | let components:DateComponents = DateComponents(year: 2013, month: 3, day: 4, hour: 0, minute: 0, second: 0) 78 | 79 | let moonTimes:MoonTimes = SunCalc.getMoonTimes(date: calendar.date(from: components)!, latitude: LAT, longitude: LNG) 80 | let formatter:DateFormatter = DateFormatter() 81 | formatter.dateFormat = "E, d MMM yyyy HH:mm:ss zzz" 82 | formatter.timeZone = TimeZone(abbreviation: "GMT") 83 | let rise:Date = formatter.date(from: "Mon, 04 Mar 2013 23:54:29 GMT")! 84 | let set:Date = formatter.date(from: "Mon, 04 Mar 2013 07:47:58 GMT")! 85 | let moonRise:Date = moonTimes.rise ?? Date() 86 | let moonSet:Date = moonTimes.set ?? Date() 87 | let slop:Double = 20 * 60 // 20 minutes 88 | 89 | XCTAssertTrue((moonRise >= rise.addingTimeInterval(-1 * slop)) && (moonRise <= rise.addingTimeInterval(slop))) 90 | //XCTAssertEqual(formatter.string(from: moonTimes.rise ?? Date()), "Mon, 04 Mar 2013 23:54:29 GMT") 91 | XCTAssertTrue((moonSet >= set.addingTimeInterval(-1 * slop)) && (moonSet <= set.addingTimeInterval(slop))) 92 | //XCTAssertEqual(formatter.string(from: moonTimes.set ?? Date()), "Mon, 04 Mar 2013 07:47:58 GMT") 93 | } 94 | 95 | func test_README_example() { 96 | let date:Date = Date() 97 | let sunCalc:SunCalc = SunCalc.getTimes(date: date, latitude: 51.5, longitude: -0.1) 98 | 99 | let formatter:DateFormatter = DateFormatter() 100 | formatter.dateFormat = "HH:mm" 101 | formatter.timeZone = TimeZone(abbreviation: "GMT") 102 | let sunriseString:String = formatter.string(from: sunCalc.sunrise) 103 | print("sunrise is at \(sunriseString)") 104 | 105 | let sunPos:SunPosition = SunCalc.getSunPosition(timeAndDate: date, latitude: 51.5, longitude: -0.1) 106 | 107 | let sunriseAzimuth:Double = sunPos.azimuth * 180 / Constants.PI() 108 | print("sunrise azimuth: \(sunriseAzimuth)") 109 | } 110 | 111 | } 112 | -------------------------------------------------------------------------------- /suncalc-swift.podspec: -------------------------------------------------------------------------------- 1 | Pod::Spec.new do |s| 2 | s.name = "suncalc-swift" 3 | s.version = "0.2.0" 4 | s.summary = "This is a swift 2 port for iOS of https://github.com/mourner/suncalc" 5 | s.homepage = "https://github.com/shanus/suncalc-swift" 6 | s.license = { :type => "MIT" } 7 | s.authors = { "shanus" => "shaun@chimani.com" } 8 | 9 | s.requires_arc = true 10 | s.platform = :ios 11 | s.ios.deployment_target = "8.0" 12 | s.source = { :git => "https://github.com/shanus/suncalc-swift.git", :tag => "0.2.0"} 13 | s.source_files = "suncalc/**/*.swift" 14 | end -------------------------------------------------------------------------------- /suncalc/models/EquatorialCoordinates.swift: -------------------------------------------------------------------------------- 1 | // 2 | // EquatorialCoordinates.swift 3 | // suncalc-example 4 | // 5 | // Created by Shaun Meredith on 10/2/14. 6 | // 7 | 8 | import Foundation 9 | 10 | class EquatorialCoordinates { 11 | var rightAscension:Double 12 | var declination:Double 13 | 14 | init(rightAscension:Double, declination:Double) { 15 | self.rightAscension = rightAscension 16 | self.declination = declination 17 | } 18 | } 19 | -------------------------------------------------------------------------------- /suncalc/models/GeocentricCoordinates.swift: -------------------------------------------------------------------------------- 1 | // 2 | // GeocentricCoordinates.swift 3 | // suncalc-example 4 | // 5 | // Created by Shaun Meredith on 10/2/14. 6 | // 7 | 8 | import Foundation 9 | 10 | class GeocentricCoordinates { 11 | var rightAscension:Double; 12 | var declination:Double; 13 | var distance:Double; 14 | 15 | init(rightAscension:Double, declination:Double, distance:Double) { 16 | self.rightAscension = rightAscension 17 | self.declination = declination 18 | self.distance = distance 19 | } 20 | } 21 | -------------------------------------------------------------------------------- /suncalc/models/MoonIllumination.swift: -------------------------------------------------------------------------------- 1 | // 2 | // MoonIllumination.swift 3 | // suncalc-example 4 | // 5 | // Created by Shaun Meredith on 10/2/14. 6 | // 7 | 8 | import Foundation 9 | 10 | class MoonIllumination { 11 | var fraction:Double 12 | var phase:Double 13 | var angle:Double 14 | 15 | init(fraction:Double, phase:Double, angle:Double) { 16 | self.fraction = fraction 17 | self.phase = phase 18 | self.angle = angle 19 | } 20 | 21 | } 22 | -------------------------------------------------------------------------------- /suncalc/models/MoonPosition.swift: -------------------------------------------------------------------------------- 1 | // 2 | // MoonPosition.swift 3 | // suncalc-example 4 | // 5 | // Created by Shaun Meredith on 10/2/14. 6 | // 7 | 8 | import Foundation 9 | 10 | class MoonPosition { 11 | var azimuth:Double 12 | var altitude:Double 13 | var distance:Double 14 | 15 | init(azimuth:Double, altitude:Double, distance:Double) { 16 | self.azimuth = azimuth 17 | self.altitude = altitude 18 | self.distance = distance 19 | } 20 | } 21 | -------------------------------------------------------------------------------- /suncalc/models/MoonTimes.swift: -------------------------------------------------------------------------------- 1 | // 2 | // MoonTimes.swift 3 | // suncalc-example 4 | // 5 | // Created by Shaun Meredith on 7/16/19. 6 | // 7 | 8 | import Foundation 9 | 10 | class MoonTimes { 11 | var rise:Date? 12 | var set:Date? 13 | var alwaysUp:Bool 14 | var alwaysDown:Bool 15 | 16 | init(rise:Date?, set:Date?, alwaysUp:Bool, alwaysDown:Bool) { 17 | self.rise = rise 18 | self.set = set 19 | self.alwaysUp = alwaysUp 20 | self.alwaysDown = alwaysDown 21 | } 22 | } 23 | -------------------------------------------------------------------------------- /suncalc/models/SunPosition.swift: -------------------------------------------------------------------------------- 1 | // 2 | // SunPosition.swift 3 | // suncalc-example 4 | // 5 | // Created by Shaun Meredith on 10/2/14. 6 | // 7 | 8 | import Foundation 9 | 10 | class SunPosition { 11 | var azimuth:Double 12 | var altitude:Double 13 | 14 | init(azimuth:Double, altitude:Double) { 15 | self.azimuth = azimuth 16 | self.altitude = altitude 17 | } 18 | } 19 | -------------------------------------------------------------------------------- /suncalc/suncalc.swift: -------------------------------------------------------------------------------- 1 | // 2 | // suncalc.swift 3 | // suncalc 4 | // 5 | // Created by Shaun Meredith on 10/2/14. 6 | // 7 | // 8 | 9 | import Foundation 10 | 11 | class SunCalc { 12 | let J0:Double = 0.0009 13 | 14 | var sunrise:Date 15 | var sunriseEnd:Date 16 | var goldenHourEnd:Date 17 | var solarNoon:Date 18 | var goldenHour:Date 19 | var sunsetStart:Date 20 | var sunset:Date 21 | var dusk:Date 22 | var nauticalDusk:Date 23 | var night:Date 24 | var nadir:Date 25 | var nightEnd:Date 26 | var nauticalDawn:Date 27 | var dawn:Date 28 | 29 | class func getSetJ(h:Double, phi:Double, dec:Double, lw:Double, n:Double, M:Double, L:Double) -> Double { 30 | let w:Double = TimeUtils.getHourAngle(h:h, phi: phi, d: dec) 31 | let a:Double = TimeUtils.getApproxTransit(ht: w, lw: lw, n: n) 32 | 33 | return TimeUtils.getSolarTransitJ(ds: a, M: M, L: L) 34 | } 35 | 36 | class func getTimes(date:Date, latitude:Double, longitude:Double) -> SunCalc { 37 | return SunCalc(date:date, latitude:latitude, longitude:longitude) 38 | } 39 | 40 | class func getSunPosition(timeAndDate:Date, latitude:Double, longitude:Double) -> SunPosition { 41 | let lw:Double = Constants.RAD() * -longitude 42 | let phi:Double = Constants.RAD() * latitude 43 | let d:Double = DateUtils.toDays(date: timeAndDate) 44 | 45 | let c:EquatorialCoordinates = SunUtils.getSunCoords(d: d) 46 | let H:Double = PositionUtils.getSiderealTime(d: d, lw: lw) - c.rightAscension 47 | 48 | return SunPosition(azimuth: PositionUtils.getAzimuth(h: H, phi: phi, dec: c.declination), altitude: PositionUtils.getAltitude(h: H, phi: phi, dec: c.declination)) 49 | } 50 | 51 | class func getMoonPosition(timeAndDate:Date, latitude:Double, longitude:Double) -> MoonPosition { 52 | let lw:Double = Constants.RAD() * -longitude 53 | let phi:Double = Constants.RAD() * latitude 54 | let d:Double = DateUtils.toDays(date: timeAndDate) 55 | 56 | let c:GeocentricCoordinates = MoonUtils.getMoonCoords(d: d) 57 | let H:Double = PositionUtils.getSiderealTime(d: d, lw: lw) - c.rightAscension 58 | var h:Double = PositionUtils.getAltitude(h: H, phi: phi, dec: c.declination) 59 | 60 | // altitude correction for refraction 61 | h = h + Constants.RAD() * 0.017 / tan(h + Constants.RAD() * 10.26 / (h + Constants.RAD() * 5.10)); 62 | 63 | return MoonPosition(azimuth: PositionUtils.getAzimuth(h: H, phi: phi, dec: c.declination), altitude: h, distance: c.distance) 64 | } 65 | 66 | class func getMoonIllumination(timeAndDate:Date) -> MoonIllumination { 67 | let d:Double = DateUtils.toDays(date: timeAndDate) 68 | let s:EquatorialCoordinates = SunUtils.getSunCoords(d: d) 69 | let m:GeocentricCoordinates = MoonUtils.getMoonCoords(d: d) 70 | 71 | let sdist:Double = 149598000; // distance from Earth to Sun in km 72 | 73 | let phi:Double = acos(sin(s.declination) * sin(m.declination) + cos(s.declination) * cos(m.declination) * cos(s.rightAscension - m.rightAscension)) 74 | let inc:Double = atan2(sdist * sin(phi), m.distance - sdist * cos(phi)) 75 | let angle:Double = atan2(cos(s.declination) * sin(s.rightAscension - m.rightAscension), sin(s.declination) * cos(m.declination) - cos(s.declination) * sin(m.declination) * cos(s.rightAscension - m.rightAscension)) 76 | 77 | let fraction:Double = (1 + cos(inc)) / 2 78 | let phase:Double = 0.5 + 0.5 * inc * (angle < 0 ? -1 : 1) / Constants.PI() 79 | 80 | return MoonIllumination(fraction: fraction, phase: phase, angle: angle) 81 | } 82 | 83 | class func getMoonTimes(date:Date, latitude:Double, longitude:Double) -> MoonTimes { 84 | let hc:Double = 0.133 * Constants.RAD() 85 | var h0:Double = SunCalc.getMoonPosition(timeAndDate: date, latitude: latitude, longitude: longitude).altitude - hc 86 | var h1:Double = 0, h2:Double = 0, rise:Double = 0, set:Double = 0, a:Double = 0, b:Double = 0, xe:Double = 0, ye:Double = 0, d:Double = 0, roots:Double = 0, x1:Double = 0, x2:Double = 0, dx:Double = 0 87 | 88 | // go in 2-hour chunks, each time seeing if a 3-point quadratic curve crosses zero (which means rise or set) 89 | for i in stride(from: 1, through: 24, by: 2) { 90 | h1 = SunCalc.getMoonPosition(timeAndDate: DateUtils.getHoursLater(date: date, hours: Double(i))!, latitude: latitude, longitude: longitude).altitude - hc 91 | h2 = SunCalc.getMoonPosition(timeAndDate: DateUtils.getHoursLater(date: date, hours: Double(i + 1))!, latitude: latitude, longitude: longitude).altitude - hc 92 | a = (h0 + h2) / 2 - h1 93 | b = (h2 - h0) / 2 94 | xe = -b / (2 * a) 95 | ye = (a * xe + b) * xe + h1 96 | d = b * b - 4 * a * h1 97 | roots = 0 98 | 99 | if (d >= 0) { 100 | dx = sqrt(d) / (abs(a) * 2) 101 | x1 = xe - dx 102 | x2 = xe + dx 103 | if (abs(x1) <= 1) { 104 | roots += 1 105 | } 106 | if (abs(x2) <= 1) { 107 | roots += 1 108 | } 109 | if (x1 < -1) { 110 | x1 = x2 111 | } 112 | } 113 | 114 | if (roots == 1) { 115 | if (h0 < 0) { 116 | rise = Double(i) + x1 117 | } else { 118 | set = Double(i) + x1 119 | } 120 | } else if (roots == 2) { 121 | rise = Double(i) + (ye < 0 ? x2 : x1) 122 | set = Double(i) + (ye < 0 ? x1 : x2) 123 | } 124 | 125 | if ((rise != 0) && (set != 0)) { 126 | break 127 | } 128 | h0 = h2 129 | } 130 | var result = [String:Any?]() 131 | result["alwaysUp"] = false 132 | result["alwaysDown"] = false 133 | if (rise != 0) { 134 | result["rise"] = DateUtils.getHoursLater(date: date, hours: rise) 135 | } 136 | if (set != 0) { 137 | result["set"] = DateUtils.getHoursLater(date: date, hours: set) 138 | } 139 | if ((rise == 0) && (set == 0)) { 140 | result[ye > 0 ? "alwaysUp" : "alwaysDown"] = true 141 | } 142 | 143 | return MoonTimes(rise: result["rise"] as? Date, set: result["set"] as? Date, alwaysUp: result["alwaysUp"] as! Bool, alwaysDown: result["alwaysDown"] as! Bool) 144 | } 145 | 146 | 147 | init(date:Date, latitude:Double, longitude:Double) { 148 | let lw:Double = Constants.RAD() * -longitude 149 | let phi:Double = Constants.RAD() * latitude 150 | let d:Double = DateUtils.toDays(date: date) 151 | 152 | let n:Double = TimeUtils.getJulianCycle(d: d, lw: lw) 153 | let ds:Double = TimeUtils.getApproxTransit(ht: 0, lw: lw, n: n) 154 | 155 | let M:Double = SunUtils.getSolarMeanAnomaly(d: ds) 156 | let L:Double = SunUtils.getEclipticLongitudeM(M: M) 157 | let dec:Double = PositionUtils.getDeclination(l: L, b: 0) 158 | 159 | let Jnoon:Double = TimeUtils.getSolarTransitJ(ds: ds, M: M, L: L) 160 | 161 | self.solarNoon = DateUtils.fromJulian(j: Jnoon) 162 | self.nadir = DateUtils.fromJulian(j: Jnoon - 0.5) 163 | 164 | // sun times configuration (angle, morning name, evening name) 165 | // unrolled the loop working on this data: 166 | // var times = [ 167 | // [-0.83, 'sunrise', 'sunset' ], 168 | // [ -0.3, 'sunriseEnd', 'sunsetStart' ], 169 | // [ -6, 'dawn', 'dusk' ], 170 | // [ -12, 'nauticalDawn', 'nauticalDusk'], 171 | // [ -18, 'nightEnd', 'night' ], 172 | // [ 6, 'goldenHourEnd', 'goldenHour' ] 173 | // ]; 174 | 175 | var h:Double = -0.83 176 | var Jset:Double = SunCalc.getSetJ(h: h * Constants.RAD(), phi: phi, dec: dec, lw: lw, n: n, M: M, L: L) 177 | var Jrise:Double = Jnoon - (Jset - Jnoon) 178 | 179 | self.sunrise = DateUtils.fromJulian(j: Jrise) 180 | self.sunset = DateUtils.fromJulian(j: Jset) 181 | 182 | h = -0.3; 183 | Jset = SunCalc.getSetJ(h: h * Constants.RAD(), phi: phi, dec: dec, lw: lw, n: n, M: M, L: L) 184 | Jrise = Jnoon - (Jset - Jnoon) 185 | self.sunriseEnd = DateUtils.fromJulian(j: Jrise) 186 | self.sunsetStart = DateUtils.fromJulian(j: Jset) 187 | 188 | h = -6; 189 | Jset = SunCalc.getSetJ(h: h * Constants.RAD(), phi: phi, dec: dec, lw: lw, n: n, M: M, L: L) 190 | Jrise = Jnoon - (Jset - Jnoon) 191 | self.dawn = DateUtils.fromJulian(j: Jrise) 192 | self.dusk = DateUtils.fromJulian(j: Jset) 193 | 194 | h = -12; 195 | Jset = SunCalc.getSetJ(h: h * Constants.RAD(), phi: phi, dec: dec, lw: lw, n: n, M: M, L: L) 196 | Jrise = Jnoon - (Jset - Jnoon) 197 | self.nauticalDawn = DateUtils.fromJulian(j: Jrise) 198 | self.nauticalDusk = DateUtils.fromJulian(j: Jset) 199 | 200 | h = -18; 201 | Jset = SunCalc.getSetJ(h: h * Constants.RAD(), phi: phi, dec: dec, lw: lw, n: n, M: M, L: L) 202 | Jrise = Jnoon - (Jset - Jnoon) 203 | self.nightEnd = DateUtils.fromJulian(j: Jrise) 204 | self.night = DateUtils.fromJulian(j: Jset) 205 | 206 | h = 6; 207 | Jset = SunCalc.getSetJ(h: h * Constants.RAD(), phi: phi, dec: dec, lw: lw, n: n, M: M, L: L) 208 | Jrise = Jnoon - (Jset - Jnoon) 209 | self.goldenHourEnd = DateUtils.fromJulian(j: Jrise) 210 | self.goldenHour = DateUtils.fromJulian(j: Jset) 211 | 212 | } 213 | } 214 | -------------------------------------------------------------------------------- /suncalc/utils/Constants.swift: -------------------------------------------------------------------------------- 1 | // 2 | // Constants.swift 3 | // suncalc-example 4 | // 5 | // Created by Shaun Meredith on 10/2/14. 6 | // 7 | 8 | import Foundation 9 | 10 | let π = 3.14159265358979 11 | 12 | class Constants { 13 | 14 | class func RAD() -> Double { 15 | return π / 180.0 16 | } 17 | 18 | class func E() -> Double { 19 | return Constants.RAD() * 23.4397 // obliquity of the earth 20 | } 21 | 22 | class func PI() -> Double { 23 | return π 24 | } 25 | } 26 | -------------------------------------------------------------------------------- /suncalc/utils/DateUtils.swift: -------------------------------------------------------------------------------- 1 | // 2 | // DateUtils.swift 3 | // suncalc-example 4 | // 5 | // Created by Shaun Meredith on 10/2/14. 6 | // 7 | 8 | import Foundation 9 | 10 | 11 | let DAY_SECONDS:Double = 60 * 60 * 24 12 | let J1970:Double = 2440588 13 | let J2000:Double = 2451545 14 | 15 | class DateUtils { 16 | 17 | class func toJulian(date:Date) -> Double { 18 | return Double(date.timeIntervalSince1970) / DAY_SECONDS - 0.5 + J1970 19 | } 20 | 21 | class func fromJulian(j:Double) -> Date { 22 | let timeInterval = (j + 0.5 - J1970) * DAY_SECONDS 23 | return Date(timeIntervalSince1970: timeInterval) 24 | } 25 | 26 | class func toDays(date:Date) -> Double { 27 | return DateUtils.toJulian(date: date) - J2000 28 | } 29 | 30 | class func getHoursLater(date:Date, hours:Double) -> Date? { 31 | let calendar:Calendar = Calendar(identifier: Calendar.Identifier.gregorian) 32 | return calendar.date(byAdding: .second, value: Int(hours*60*60), to: date) 33 | } 34 | } 35 | -------------------------------------------------------------------------------- /suncalc/utils/MoonUtils.swift: -------------------------------------------------------------------------------- 1 | // 2 | // MoonUtils.swift 3 | // suncalc-example 4 | // 5 | // Created by Shaun Meredith on 10/2/14. 6 | // 7 | 8 | import Foundation 9 | 10 | class MoonUtils { 11 | 12 | class func getMoonCoords(d:Double) -> GeocentricCoordinates { 13 | // geocentric ecliptic coordinates of the moon 14 | 15 | let L:Double = Constants.RAD() * (218.316 + 13.176396 * d); // ecliptic longitude 16 | let M:Double = Constants.RAD() * (134.963 + 13.064993 * d); // mean anomaly 17 | let F:Double = Constants.RAD() * (93.272 + 13.229350 * d); // mean distance 18 | 19 | let l:Double = L + Constants.RAD() * 6.289 * sin(M); // longitude 20 | let b:Double = Constants.RAD() * 5.128 * sin(F); // latitude 21 | let dt:Double = 385001 - 20905 * cos(M); // distance to the moon in km 22 | 23 | return GeocentricCoordinates(rightAscension: PositionUtils.getRightAscension(l:l, b: b), declination: PositionUtils.getDeclination(l: l, b: b), distance: dt) 24 | } 25 | } 26 | -------------------------------------------------------------------------------- /suncalc/utils/PositionUtils.swift: -------------------------------------------------------------------------------- 1 | // 2 | // PositionUtils.swift 3 | // suncalc-example 4 | // 5 | // Created by Shaun Meredith on 10/2/14. 6 | // 7 | 8 | import Foundation 9 | 10 | class PositionUtils { 11 | 12 | class func getRightAscension(l:Double, b:Double) -> Double { 13 | return atan2(sin(l) * cos(Constants.E()) - tan(b) * sin(Constants.E()), cos(l)) 14 | } 15 | 16 | class func getDeclination(l:Double, b:Double) -> Double { 17 | return asin(sin(b) * cos(Constants.E()) + cos(b) * sin(Constants.E()) * sin(l)) 18 | } 19 | 20 | class func getAzimuth(h:Double, phi:Double, dec:Double) -> Double { 21 | return atan2(sin(h), cos(h) * sin(phi) - tan(dec) * cos(phi)) 22 | } 23 | 24 | class func getAltitude(h:Double, phi:Double, dec:Double) -> Double { 25 | return asin(sin(phi) * sin(dec) + cos(phi) * cos(dec) * cos(h)) 26 | } 27 | 28 | class func getSiderealTime(d:Double, lw:Double) -> Double { 29 | return Constants.RAD() * (280.16 + 360.9856235 * d) - lw 30 | } 31 | 32 | class func getAstroRefraction(h:Double) -> Double { 33 | var hCalc:Double = h 34 | if (hCalc < 0) { 35 | hCalc = 0; 36 | } 37 | return 0.0002967 / tan(hCalc + 0.00312536 / (hCalc + 0.08901179)); 38 | } 39 | 40 | @available(*, deprecated: 1.0, message: "will soon become unavailable. Use getRightAscension instead.") 41 | class func getRightAscensionL(l:Double, b:Double) -> Double { 42 | return PositionUtils.getRightAscension(l: l, b: b) 43 | } 44 | 45 | @available(*, deprecated: 1.0, message: "will soon become unavailable. Use getDeclination instead.") 46 | class func getDeclinationL(l:Double, b:Double) -> Double { 47 | return PositionUtils.getDeclination(l: l, b: b) 48 | } 49 | 50 | @available(*, deprecated: 1.0, message: "will soon become unavailable. Use getAzimuth instead.") 51 | class func getAzimuthH(h:Double, phi:Double, dec:Double) -> Double { 52 | return PositionUtils.getAzimuth(h: h, phi: phi, dec: dec) 53 | } 54 | 55 | @available(*, deprecated: 1.0, message: "will soon become unavailable. Use getAltitude instead.") 56 | class func getAltitudeH(h:Double, phi:Double, dec:Double) -> Double { 57 | return PositionUtils.getAltitude(h: h, phi: phi, dec: dec) 58 | } 59 | 60 | @available(*, deprecated: 1.0, message: "will soon become unavailable. Use getSiderealTime instead.") 61 | class func getSiderealTimeD(d:Double, lw:Double) -> Double { 62 | return PositionUtils.getSiderealTime(d: d, lw: lw) 63 | } 64 | 65 | } 66 | -------------------------------------------------------------------------------- /suncalc/utils/SunUtils.swift: -------------------------------------------------------------------------------- 1 | // 2 | // SunUtils.swift 3 | // suncalc-example 4 | // 5 | // Created by Shaun Meredith on 10/2/14. 6 | // 7 | 8 | import Foundation 9 | 10 | class SunUtils { 11 | 12 | class func getSolarMeanAnomaly(d:Double) -> Double { 13 | return Constants.RAD() * (357.5291 + 0.98560028 * d) 14 | } 15 | 16 | class func getEquationOfCenter(M:Double) -> Double { 17 | let firstFactor = 1.9148 * sin(M) 18 | let secondFactor = 0.02 * sin(2 * M) 19 | let thirdFactor = 0.0003 * sin(3 * M) 20 | return Constants.RAD() * (firstFactor + secondFactor + thirdFactor) 21 | } 22 | 23 | class func getEclipticLongitudeM(M:Double) -> Double { 24 | let C:Double = SunUtils.getEquationOfCenter(M:M) 25 | let P:Double = Constants.RAD() * 102.9372 // perihelion of the Earth 26 | return M + C + P + Constants.PI() 27 | } 28 | 29 | class func getSunCoords(d:Double) -> EquatorialCoordinates { 30 | let M:Double = SunUtils.getSolarMeanAnomaly(d:d) 31 | let L:Double = SunUtils.getEclipticLongitudeM(M:M) 32 | 33 | return EquatorialCoordinates(rightAscension: PositionUtils.getRightAscension(l: L, b: 0), declination: PositionUtils.getDeclination(l: L, b: 0)) 34 | } 35 | } 36 | -------------------------------------------------------------------------------- /suncalc/utils/TimeUtils.swift: -------------------------------------------------------------------------------- 1 | // 2 | // TimeUtils.swift 3 | // suncalc-example 4 | // 5 | // Created by Shaun Meredith on 10/2/14. 6 | // 7 | 8 | import Foundation 9 | 10 | let J0:Double = 0.0009 11 | 12 | class TimeUtils { 13 | 14 | class func getJulianCycle(d:Double, lw:Double) -> Double { 15 | return round(d - J0 - lw / (2 * Constants.PI())) 16 | } 17 | 18 | class func getApproxTransit(ht:Double, lw:Double, n:Double) -> Double { 19 | return J0 + (ht + lw) / (2 * Constants.PI()) + n 20 | } 21 | 22 | class func getSolarTransitJ(ds:Double, M:Double, L:Double) -> Double { 23 | return J2000 + ds + 0.0053 * sin(M) - 0.0069 * sin(2 * L) 24 | } 25 | 26 | class func getHourAngle(h:Double, phi:Double, d:Double) -> Double { 27 | return acos((sin(h) - sin(phi) * sin(d)) / (cos(phi) * cos(d))) 28 | } 29 | 30 | class func getSetJ(h:Double, lw:Double, phi:Double, dec:Double, n:Double, M:Double, L:Double) -> Double { 31 | let w:Double = TimeUtils.getHourAngle(h: h, phi: phi, d: dec) 32 | let a:Double = TimeUtils.getApproxTransit(ht: w, lw: lw, n: n ) 33 | return TimeUtils.getSolarTransitJ(ds: a, M: M, L: L) 34 | } 35 | 36 | @available(*, deprecated: 1.0, message: "will soon become unavailable. Use getJulianCycle instead.") 37 | class func getJulianCycleD(d:Double, lw:Double) -> Double { 38 | return TimeUtils.getJulianCycle(d: d, lw: lw) 39 | } 40 | 41 | @available(*, deprecated: 1.0, message: "will soon become unavailable. Use getApproxTransit instead.") 42 | class func getApproxTransitHt(ht:Double, lw:Double, n:Double) -> Double { 43 | return TimeUtils.getApproxTransit(ht: ht, lw: lw, n: n) 44 | } 45 | 46 | @available(*, deprecated: 1.0, message: "will soon become unavailable. Use getSolarTransitJ instead.") 47 | class func getSolarTransitJDs(ds:Double, M:Double, L:Double) -> Double { 48 | return TimeUtils.getSolarTransitJ(ds: ds, M: M, L: L) 49 | } 50 | 51 | @available(*, deprecated: 1.0, message: "will soon become unavailable. Use getHourAngle instead.") 52 | class func getHourAngleH(h:Double, phi:Double, d:Double) -> Double { 53 | return TimeUtils.getHourAngle(h: h, phi: phi, d: d) 54 | } 55 | } 56 | --------------------------------------------------------------------------------