如何使用骨骼關節作爲遊標使用邊界（無手勢）

Question

我只是想能夠做一些事情，當我的骨骼關節（x，y，z）座標超過x，y，z座標按鈕。 。我有下面的代碼，但它不能正常工作。 。隨着一聲我的手移動它會做一些沒有我的手到達按鈕

if (skeletonFrame != null) 
       { 
        //int skeletonSlot = 0; 
        Skeleton[] skeletonData = new Skeleton[skeletonFrame.SkeletonArrayLength]; 
        skeletonFrame.CopySkeletonDataTo(skeletonData); 

        Skeleton playerSkeleton = (from s in skeletonData where s.TrackingState == SkeletonTrackingState.Tracked select s).FirstOrDefault(); 

        if (playerSkeleton != null) 
        { 
         Joint rightHand = playerSkeleton.Joints[JointType.HandRight]; 

         handPosition = new Vector2((((0.5f * rightHand.Position.X) + 0.5f) * (640)), (((-0.5f * rightHand.Position.Y) + 0.5f) * (480))); 

         var rightHands = playerSkeleton.Joints[JointType.HandRight]; 
         var rightHandsX = rightHands.Position.X; 
         var rightHandsY = rightHands.Position.Y; 
         var rightHandsZ = rightHands.Position.Z; 


         if (Math.Sqrt(Math.Pow(rightHandsX - position.X, 2) + Math.Pow(rightHandsY - position.Y, 2)) < 20) 
         { 

          // Exit(); 
         } 



if (Math.Sqrt(Math.Pow(rightHandsX - start_bttn.Bounds.X, 1) + Math.Pow(rightHandsY - start_bttn.Bounds.Y, 1)) < 10) 
         { 

          currentGameState = GameState.Selection; 
          // Exit(); 
         } 

if ((rightHandsX < GraphicsDevice.Viewport.Width/2 + 150 && rightHandsX > GraphicsDevice.Viewport.Width/2 - 75) && (rightHandsY > GraphicsDevice.Viewport.Height/2 && rightHandsY < GraphicsDevice.Viewport.Height/2 + 50)) 
         { 
          currentGameState = GameState.Selection; 

         } 

}

Answer 1

這裏是我的手跟蹤功能。看看它是否做你想要的，或讓你更接近...

private void TrackHandMovement(Skeleton skeleton) 
    { 
     Joint leftHand = skeleton.Joints[JointType.HandLeft]; 
     Joint rightHand = skeleton.Joints[JointType.HandRight]; 

     Joint leftShoulder = skeleton.Joints[JointType.ShoulderLeft]; 
     Joint rightShoulder = skeleton.Joints[JointType.ShoulderRight]; 

     Joint rightHip = skeleton.Joints[JointType.HipRight]; 

     // the right hand joint is being tracked 
     if (rightHand.TrackingState == JointTrackingState.Tracked) 
     { 
      // the hand is sufficiently in front of the shoulder 
      if (rightShoulder.Position.Z - rightHand.Position.Z > 0.4) 
      { 
       double xScaled = (rightHand.Position.X - leftShoulder.Position.X)/((rightShoulder.Position.X - leftShoulder.Position.X) * 2) * SystemParameters.PrimaryScreenWidth; 
       double yScaled = (rightHand.Position.Y - rightShoulder.Position.Y)/(rightHip.Position.Y - rightShoulder.Position.Y) * SystemParameters.PrimaryScreenHeight; 

       // the hand has moved enough to update screen position (jitter control/smoothing) 
       if (Math.Abs(rightHand.Position.X - xPrevious) > MoveThreshold || Math.Abs(rightHand.Position.Y - yPrevious) > MoveThreshold) 
       { 
        RightHandX = xScaled; 
        RightHandY = yScaled; 

        xPrevious = rightHand.Position.X; 
        yPrevious = rightHand.Position.Y; 

        // reset the tracking timer 
        trackingTimerCounter = 10; 
       } 
      } 
     } 
    } 

有一些數學在那裏翻譯手位置到屏幕位置。爲了招人，但我的邏輯是：

Shoulders = top of screen 
Hips = bottom of screen 
Left Should = left most on screen 

爲了獲得最右邊的屏幕位置，我取左側&右肩之間的距離，並把它添加到右肩。