找到Kinect的偏移（座標之間的差異）

Question

我正在研究一個kinect項目..我試圖找到偏移量（聯合座標之間的差異）並通過使用TCP/IP的網絡發送它。不過，我對着接近關節的前值的問題.. 這是到目前爲止我的代碼：

Joint right = skel.Joints[JointType.HandRight]; 
double right = right.Position.X; 


/*   
I need an operation here to calculate the offset of right before sending it 
Meaning, offset= right(current coordinate)-right(previous coordinate) 
How can I do this in C# ? 
I have tried this operation as mentioned below but it is printing all zeros although I moved (if move, previous - current coordinates shall not be zero) 
*/ 

//--------------------------------------------------------------------------- 
double offset = 0; 
double[] of = new double[2]; 

    for (int i = 0; i < of.Length; i++) 
{ 
    if (i > 2) 
    { 
    break; 
    } 
    of[i] = right; 
    offset = of[1] - of[0];         
    } 

//---------------------------------------------------------------------------  

//convert the data to bytes before sending 
byte[] rh = BitConverter.GetBytes(offset); 

//sending the data to the server 
client.Send(rh, rh.Length); 

Answer 1

// make it global 

    double previousval=-1000; 
    double currentVal=-1000; 

then in your code 

    Joint right = skel.Joints[JointType.HandRight]; 
    currentVal=right.Position.X; 

    double offset = 0; 
    if(prev==-1000) 
     offset = currentVal - currentVal; 
    else 
     offset = previousval - currentVal; 

    previousval=currentVal;