Face detection

1. In emgu face detection, the default settings was framework 3.5 while the System.Threading.Task seems conflict with library. Open the project by framework 3.5 and then change to 4.6 with remark //System,.Threading.Task.

2. Microsoft Oxford project face detection api installed by framework 4.5 and the System.Threading.Task is needed.

Windows 10 can't find the 2nd HD (IDE to AHCI)

Ref: http://www.tenforums.com/drivers-hardware/15006-attn-ssd-owners-enabling-ahci-mode-after-windows-10-installation.html

ASUS X450J /Replace DVD to SSD  with  Windows 10
Follow the procedure by REF
1. Run Command Prompt as Admin
2. Invoke a Safe Mode boot with the command: bcdedit /set {current} safeboot minimal
3. Restart the PC and enter your BIOS during bootup.
4. Change from IDE to AHCI mode then Save & Exit.
5. Windows 10 will launch in Safe Mode.
6. Right click the Window icon and select to run the Command Prompt in Admin mode from among the various options.
7. Cancel Safe Mode booting with the command: bcdedit /deletevalue {current} safeboot
8. Restart your PC once more and this time it will boot up normally but with AHCI mode activated.
9. Bask in the reflected glory of being a total Windows 10 God

It's work.

.NET Core (Docker)

Ref: https://www.microsoft.com/net/core#docker
ASUS X450J (Win10 Edux64)
1. docker run -it microsoft/dotnet:latest
2. Create new project
2.1 mkdir hwapp
2.2 cd hwapp
2.3 dotnet new
Create Project.json and Program.cs files
Can be checked by cat Program.cs
3. dotnet restore
4. dotnet run
5. Results:

 

Tag latest not found in repository docker.io/wotcity/wotcity-io

Ref: https://github.com/docker/docker-registry/issues/637
ASUS X450J (Windows 10 Edux64)
Docker
1. Follow Ref:https://wotcity.com/blog/2015/09/07/installation-guide/
2. docker pull wotcity/wotcity-io
Error  : Tag latest not found in repository docker.io/wotcity/wotcity-io
3. Solve by
docker pull -a wotcity/wotcity-io

Youtube 直播 (Windows 10)

ASUS X450J (Windows 10 Edu x64)
1. 下載 OBS (Latest Windows Release - 0.15.4)
https://obsproject.com/download#mp
2. 安裝 OBS
3. 設定場景，來源

4. Chrome 啟用Youtube (記得要登入)
5. 選擇我的頻道
6. 進入影片管理員

7. 選擇即時串流(設定標題，紀錄伺服器網址url，金鑰)

8. 回到OBS設定(Preference)

9. 在串流選擇
9.1 串流類型：自訂串流伺服器
9.2 將youtube url / 串流金鑰 依序設定

10. 回到OBS主視窗右下角，開始串流
...
11. 回到OBS主視窗右下角，停止串流

Emgu face detect

Ref: http://www.codeproject.com/Articles/462527/Camera-Face-Detection-in-Csharp-Using-Emgu-CV-Open

ASUS X450 J with Windows 10 x64 Education
Visual Studio 2015 (update 1)

1. 測試程式
1.1 下載 emgu 3.1.0.0 版  失敗
emgu.cv.dll 已併入 emgu.cv.world.dll ... 其他原因待測試

2 emgucv-windows-universal-cuda 2.9.0.1922 OK
2.1 下載 emgu 解壓縮.
2.2 下載 code Project 程式解壓縮
2.3  Visual Studio 2015 開啟專案
2.4 重新加入參考
      emgu.cv
      emgu.cv.util
      emgu.cv.ui
2.5 修改專案屬性建置輸出為
      D:\Emgu\emgucv-windows-universal-cuda 2.9.0.1922\bin
      (emgy解壓縮路徑)

3 測試OK。

Mac lua tutorial 2 (http server)

Ref http://lua-users.org/wiki/CopasExample

1. Macbook pro (OS X EI Captian 10.11.5)
2. lua 5.2.4
    brew install lua 
    注意 : 下載 lua 5.3.3 for Mac 
    Download lua for Mac 5.3.3
    http://luabinaries.sourceforge.net/download.html
3. 安裝copas
     luarocks install copas
4. 安裝 socket
     sudo luarocks install luasocket
5.  參考範例備妥 luaCopasEx3.lua
-- Ref http://lua-users.org/wiki/CopasExample
-- Test OK 2016/8/18
-- luaCopasEx3.lua
-- lua -E luaCopasEx3.lua
local socket = require("socket")
local copas = require("copas")
function handler(c, host, port)
local peer = host .. ":" .. port
print("connection from", peer)
c:send("Hello 中文試試看\r\n")
print("data from", peer, (c:receive"*l"))
end
copas.addserver(assert(socket.bind("*",2220)),
                function(c) return handler(copas.wrap(c), c:getpeername()) end
)

copas.loop()
6. 結果

Youtube 直播 (Mac)

Macbook pro (OS X EI Captian 10.11.5)
1. 下載 OBS
https://obsproject.com/download#mac
2. 安裝 OBS
3. 設定場景，來源

4. Chrome 啟用Youtube (記得要登入)
5. 選擇我的頻道
6. 進入影片管理員

7. 選擇即時串流(設定標題，紀錄伺服器網址url，金鑰)

8. 回到OBS設定(Preference)

9. 在串流選擇
9.1 串流類型：自訂串流伺服器
9.2 將youtube url / 串流金鑰 依序設定

10. 回到OBS主視窗右下角，開始串流
...
11. 回到OBS主視窗右下角，停止串流

Mac lua tutorial - 1 (Hello world)

Macbook pro (OS X EI Captian 10.11.5)
lua-5.3.3-0.pkg 2016-06-06 0.43
1. lua Hello world
1.1 準備 luaHello.lua
-- luaHello.lua
-- lua -E luaHello.lua
print ("Hello World!")
1.2 執行 (@bash) lua -E luaHello.lua

2. lua function
2.1 準備檔案
-- luaFunction.lua
-- lua -E luaFunction.lua
foo = function () print("hello") end -- declare the function

foo() -- call the function
2.2 執行

3. lua IO

3.1 準備檔案
-- luaIO.lua
-- lua -E luaIO.lua
print ("enter a integer for n ")
n=io.read("*n") --not *number
if  (n<0)   then return 1 end

sum = 0
i = 1 --0 has no effect :)?
while (i<=n) do
    sum = sum + i^2
    i = i + 1
end

print(sum)
3.2 執行

Mac lua compiler installation

Ref: 1. http://rudamoura.com/luaonmacosx.html
        2. http://rudix.org/packages/lua.html
Macbook pro (OS X EI Captian 10.11.5)

1. Download lua compiler
El Capitan (10.11) lua-5.3.3-0.pkg 2016-06-06 0.43
2. 執行  lua-5.3.3-0;pkg (需輸入密碼)
3. 進入終端機模式(bash)
4. lua

Mac 3D graphic by game template (III) Create 3D objects by DAE file

Ref: 1. http://stackoverflow.com/questions/25356301/how-do-you-load-a-dae-file-into-an-scnnode-in-ios-scenekit
        2. https://www.weheartswift.com/introduction-scenekit-part-2/
Macbook pro (OS X EI Captian 10.11.5)

Xcode 7.3.1案例以Game Template 開始，移除原範本加入的Ship與動畫(Animation)，再參考Ref1 將匯入的DAE檔案轉為node物件，再加入至場景內
1. 開啟遊戲範本專案
2. GameViewController.swft2.1 關閉ship節點與“動畫”指令
2.2 參考Ref1將DAE檔案轉為節點，並加入場景
...

        // create a new scene

        //let scene = SCNScene(named: "art.scnassets/ship.scn")!

        let scene = SCNScene();

        //-- 2016-8-10

        var nodeS = SCNNode()

        let sceneS = SCNScene(named: "mug.dae")

        var nodeArrayS = sceneS!.rootNode.childNodes

        

        for childNode in nodeArrayS {

            nodeS.addChildNode(childNode as SCNNode)

        }

        scene.rootNode.addChildNode(nodeS)

        // create and add a camera to the scene

        let cameraNode = SCNNode()

...

3. 結果

4. 參考Ref1，將DAE轉換node動作轉為方法．

class GameViewController: UIViewController {

    //----- Def DAE2Node方法

    func collada2SCNNode(filepath:String) -> SCNNode {

    var node = SCNNode()

    let scene = SCNScene(named: filepath)

    var nodeArray = scene!.rootNode.childNodes

    

    for childNode in nodeArray {

    node.addChildNode(childNode as SCNNode)

    }

    return node

    }

    //------

    override func viewDidLoad() {

        super.viewDidLoad()

...

//-- 2016-8-10-B

        /*

        var nodeS = SCNNode()

        let sceneS = SCNScene(named: "mug.dae")

        var nodeArrayS = sceneS!.rootNode.childNodes

        

        for childNode in nodeArrayS {

            nodeS.addChildNode(childNode as SCNNode)

        }

        */

        let nodeS = collada2SCNNode("mug.dae")

        

        scene.rootNode.addChildNode(nodeS)

...

5. 用迴圈呼叫方法，產生系列3D物件
...
*/

for zz in 1...3 {

        let nodeS = collada2SCNNode("mug.dae")

        nodeS.position = SCNVector3(x:0, y:0, z:Float(zz)*3)

        scene.rootNode.addChildNode(nodeS)

        }

...
6. 結果

Mac 3D graphic by game template (II) Create 3D objects by loop

Ref: https://www.weheartswift.com/introduction-scenekit-part-2/
Macbook pro (OS X EI Captian 10.11.5)
Xcode 7.3.1案例以Game Template 開始，移除原範本加入的Ship與動畫(Animation)，再參考範例以迴圈加入內建3D物件

• Box
• Capsule
• Cone
• Cylinder
• Plane
• Pyramid
• Sphere
• Torus
• Tube

進階

• Floor
• Shape
• Text

1. 開啟遊戲範本專案
2. GameViewController.swft

override func viewDidLoad() {

        super.viewDidLoad()

        

        // create a new scene

        //let scene = SCNScene(named: "art.scnassets/ship.scn")! 移除Ship

        let scene = SCNScene(); //建立空白場景

        // 建立內建3D物件

        var geometries = [SCNSphere(radius: 1.0),

                          SCNPlane(width: 1.0, height: 1.5),

                          SCNBox(width: 1.0, height: 1.5, length: 2.0, chamferRadius: 0.0),

                          SCNPyramid(width: 2.0, height: 1.5, length: 1.0),

                          SCNCylinder(radius: 1.0, height: 1.5),

                          SCNCone(topRadius: 0.5, bottomRadius: 1.0, height: 1.5),

                          SCNTorus(ringRadius: 1.0, pipeRadius: 0.2),

                          SCNTube(innerRadius: 0.5, outerRadius: 1.0, height: 1.5),

                          SCNCapsule(capRadius: 0.5, height: 2.0)]

        var x:Float = 0.0

        for index in 0..<geometries.count {

            

            let hue:CGFloat = CGFloat(index) / CGFloat(geometries.count)

            let color = UIColor(hue: hue, saturation: 1.0, brightness: 1.0, alpha: 1.0)

            

            let geometry = geometries[index]

            geometry.firstMaterial?.diffuse.contents = color

            

            let node = SCNNode(geometry: geometry)

            node.position = SCNVector3(x: x, y: 0.0, z: 0.0)

            

            scene.rootNode.addChildNode(node)

            

            x += 2.5

        }

        // create and add a camera to the scene

        let cameraNode = SCNNode()

        cameraNode.camera = SCNCamera()

        scene.rootNode.addChildNode(cameraNode)

        

        // place the camera

        cameraNode.position = SCNVector3(x: 0, y: 0, z: 15)

        

        // create and add a light to the scene

        let lightNode = SCNNode()

        lightNode.light = SCNLight()

        lightNode.light!.type = SCNLightTypeOmni

        lightNode.position = SCNVector3(x: 0, y: 10, z: 10)

        scene.rootNode.addChildNode(lightNode)

        

        // create and add an ambient light to the scene

        let ambientLightNode = SCNNode()

        ambientLightNode.light = SCNLight()

        ambientLightNode.light!.type = SCNLightTypeAmbient

        ambientLightNode.light!.color = UIColor.darkGrayColor()

        scene.rootNode.addChildNode(ambientLightNode)

        

        // retrieve the ship node

        //let ship = scene.rootNode.childNodeWithName("ship", recursively: true)!

        

        // animate the 3d object

        //ship.runAction(SCNAction.repeatActionForever(SCNAction.rotateByX(0, y: 2, z: 0, duration: 1)))

...

3. 結果：

4. 加入動畫(可在加入3D物件進入場景前設定)

if index == 0 {

                // Animation

                let moveUp = SCNAction.moveByX(0.0, y: 1.0, z: 0.0, duration: 1.0)

                let moveDown = SCNAction.moveByX(0.0, y: -1.0, z: 0.0, duration: 1.0)

                let sequence = SCNAction.sequence([moveUp,moveDown])

                node.runAction(SCNAction.repeatActionForever(sequence))

                //let moveUp = SCNAction.moveByX(0.0, y: 1.0, z: 0.0, duration: 1.0)

                //node.runAction(SCNAction.repeatActionForever(moveUp))

            }

 scene.rootNode.addChildNode(node)

Mac 3D graphic by game template

Ref: https://www.weheartswift.com/introduction-scenekit-part-1/
Macbook pro (OS X EI Captian 10.11.5)
Xcode 7.3.1
案例以Game Template 開始，移除原範本加入的Ship與動畫(Animation)，再參考範例加入3D物件
1. 開啟遊戲範本專案
2. GamViewController.swift

class GameViewController: UIViewController {

    override func viewDidLoad() {

        super.viewDidLoad()

        

        // create a new scene 1.3 移除 ship 物件

        // let scene = SCNScene(named: "art.scnassets/ship.scn")!

        // 1.4 add Empty SCNScene 建置空場景

        let scene = SCNScene()

        // 1.5 加入圓

        let sphereGeometry = SCNSphere(radius: 1.0)

        sphereGeometry.firstMaterial?.diffuse.contents = UIColor.orangeColor()

        let sphereNode = SCNNode(geometry: sphereGeometry)

        scene.rootNode.addChildNode(sphereNode)

        

        // create and add a camera to the scene  0.1 加入相機

        let cameraNode = SCNNode()

        cameraNode.camera = SCNCamera()

        scene.rootNode.addChildNode(cameraNode)

        

        // place the camera

        cameraNode.position = SCNVector3(x: 0, y: 0, z: 15)

        

        // create and add a light to the scene 0.2 加入Omni光源

        let lightNode = SCNNode()

        lightNode.light = SCNLight()

        lightNode.light!.type = SCNLightTypeOmni

        lightNode.position = SCNVector3(x: 0, y: 10, z: 10)

        scene.rootNode.addChildNode(lightNode)

        

        // create and add an ambient light to the scene

        let ambientLightNode = SCNNode()

        ambientLightNode.light = SCNLight()

        ambientLightNode.light!.type = SCNLightTypeAmbient

        ambientLightNode.light!.color = UIColor.darkGrayColor()

        scene.rootNode.addChildNode(ambientLightNode)

        

        // retrieve the ship node 1.1 移除 ship 動畫

        //let ship = scene.rootNode.childNodeWithName("ship", recursively: true)!

        

        // animate the 3d object 1.2 移除 ship 動畫

        //ship.runAction(SCNAction.repeatActionForever(SCNAction.rotateByX(0, y: 2, z: 0, duration: 1)))

        

        // retrieve the SCNView

        let scnView = self.view as! SCNView

        

        // set the scene to the view

        scnView.scene = scene

        

        // allows the user to manipulate the camera

        scnView.allowsCameraControl = true

        

        // show statistics such as fps and timing information

        scnView.showsStatistics = true

        

        // configure the view

        scnView.backgroundColor = UIColor.blackColor()

        

        // add a tap gesture recognizer

        let tapGesture = UITapGestureRecognizer(target: self, action: #selector(handleTap(_:)))

        scnView.addGestureRecognizer(tapGesture)

    }

3. Result

Mac 3D graphic w/o game template

Ref: https://www.weheartswift.com/introduction-scenekit-part-1/
Macbook pro (OS X EI Captian 10.11.5)
Xcode 7.3.1
案例以Single View Template 始，依序加入SceneKit Framework, PrimitivesScene.swift(建置繼承SCNView       類別的PrimitivesScene類別)，在PrimitivesScene類別建構元方法中建置3D物件，在ViewController的載入方法(viewDidLoad)中加入以PrimitivesScene類別建置的場景物件與，相機等物件．細部步驟：
1. Open New SingleView
2. 加入SceneKit Framework
   2.1 選取專案目標(Target)
   2.2 選取  Build Phases
   2.3 在Link Binary With Libraries 選取+ (加入程式庫)
   2.4 搜尋SceneKit.framework

3. 專案中建立新類別(加入檔案 PrimitivesScene.swift)

空白檔案僅有 import Foundation

import Foundation

//---- 依序建立繼承SCNScene類別的場景類別

import SceneKit

// 3.1. Add class  繼承 SCNScene

class PrimitivesScene : SCNScene {

// 3.2. Add init() method and required ... (auto fixed)

    override init() {

        super.init()

// 3.3. Add  圓

        let sphereGeometry = SCNSphere(radius: 0.5)

        let sphereNode = SCNNode(geometry: sphereGeometry)

        self.rootNode.addChildNode(sphereNode)

// 3.4. Add 2nd circle

        let secondSphereGeometry = SCNSphere(radius: 1.0)

        let secondSphereNode = SCNNode(geometry: secondSphereGeometry)

        secondSphereNode.position = SCNVector3(x: 3.0, y: 0.0, z: 0.0)

        self.rootNode.addChildNode(secondSphereNode)

        

    }

    // 3.1.2 選取自動修正產生

    required init?(coder aDecoder: NSCoder) {

        fatalError("init(coder:) has not been implemented")

    }

    

    

}

3.5 3.2-3.4 可先測試完再依序加入

4. viewController.swift 建置程序

// 4.2.配合MVC的方式，先在 Main.storyboard 加入 Scene Kit View 物件

import UIKit

// 4.1. Add import

import SceneKit

class ViewController: UIViewController {

// 4. 3, 以輔助視窗將(View)Main.storyboad的控制項連結至(Control)類別

//          Connect Scene Kit View

    @IBOutlet weak var scnview: SCNView!

    override func viewDidLoad() {

        super.viewDidLoad()

// Do any additional setup after loading the view, typically from a nib.

//  4.2-4.3 取代原範例       let scnview = self.view as! SCNView 

        scnview.scene = PrimitivesScene()

        scnview.backgroundColor = UIColor.blackColor()

        scnview.autoenablesDefaultLighting = true

        scnview.allowsCameraControl = true

    }

    override func didReceiveMemoryWarning() {

        super.didReceiveMemoryWarning()

        // Dispose of any resources that can be recreated.

    }

}

5. Result