/// <summary>
///阅读的身体框架
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void bodyFrameReader_FrameArrived(object sender, BodyFrameArrivedEventArgs e)
{
bool dataReceived = false;
//获取一帧身体数据
using (BodyFrame bodyFrame = e.FrameReference.AcquireFrame())
{
if (bodyFrame != null)
{
if (this.bodies == null)
{
this.bodies = new Body[bodyFrame.BodyCount];
}
//第一次GetAndRefreshBodyData被调用时，Kinect将在数组中分配每个主体。
//只要这些物体不被处理，并且在数组中不被设置为空，
//这些物体将被重新使用。
bodyFrame.GetAndRefreshBodyData(this.bodies);
dataReceived = true;
}
}
if (!dataReceived)
{
alreadyTrackedPos = false;
return;
}
foreach (Body body in this.bodies)
{
//第一个被跟踪的身体，注意下面有一个休息。
if (body.IsTracked)
{
// 得到各种骨骼位置
CameraSpacePoint handLeft = body.Joints[JointType.HandLeft].Position;
CameraSpacePoint handRight = body.Joints[JointType.HandRight].Position;
CameraSpacePoint spineBase = body.Joints[JointType.SpineBase].Position;
// 如果右手向前推进
if (handRight.Z - spineBase.Z < -0.15f)
{
//用这个计算的手x。我们不使用右肩作为参考，
//因为肩膀的右肩通常是在升力的后面，而这个位置是推断和不稳定的。
//因为脊椎底部在右手的左边，我们加上0.05f，使它更接近右边。
float x = handRight.X - spineBase.X + 0.05f;
//用这个来计算。它的脊柱底部比右方要低，我们加上0.51f来让它成为higer，
//值0.51是通过多次测试来计算的，你可以把它设置为你喜欢的另一个。
float y = spineBase.Y - handRight.Y + 0.51f;
// 得到当前光标位置
Point curPos = MouseControl.GetCursorPosition();
//使用的平滑度应该是0-0.95f。我们的算法是:oldPos + (newPos - oldPos) * smoothValue
float smoothing = 1 - cursorSmoothing;
// 设置光标位置
MouseControl.SetCursorPos((int)(curPos.X + (x * mouseSensitivity * screenWidth - curPos.X) * smoothing), (int)(curPos.Y + ((y + 0.25f) * mouseSensitivity * screenHeight - curPos.Y) * smoothing));
alreadyTrackedPos = true;
//控制动作
if (doClick && useGripGesture)
{//用握拳动作进行完成点击事件
///////////////////////添加缩放功能/////////////////////////////
bool isZoom = (System.Math.Abs(handRight.Z - body.Joints[JointType.ShoulderRight].Position.Z) > 0.5);
if (body.HandRightState == HandState.Open && isZoom)
{
MouseControl.MouseAmplification();
System.Threading.Thread.Sleep(200);
}
else if (body.HandRightState == HandState.Closed && isZoom)
{
MouseControl.MouseNarrow();
System.Threading.Thread.Sleep(200);
}
////////////////////////////////////////////////////
if (body.HandRightState == HandState.Closed && !isZoom)
{
if (!wasRightGrip)
{
MouseControl.MouseLeftDown();
wasRightGrip = true;
}
}
else if (body.HandRightState == HandState.Open && !isZoom)
{
if (wasRightGrip)
{
MouseControl.MouseLeftUp();
wasRightGrip = false;
}
}
}
}
//////////////////实现双手识别///////////////////////////////////////////////
//else if (handLeft.Z - spineBase.Z < -0.15f) // if left hand lift forward
//{
// float x = handLeft.X - spineBase.X + 0.3f;
// float y = spineBase.Y - handLeft.Y + 0.51f;
// Point curPos = MouseControl.GetCursorPosition();
// float smoothing = 1 - cursorSmoothing;
// MouseControl.SetCursorPos((int)(curPos.X + (x * mouseSensitivity * screenWidth - curPos.X) * smoothing), (int)(curPos.Y + ((y + 0.25f) * mouseSensitivity * screenHeight - curPos.Y) * smoothing));
// alreadyTrackedPos = true;
// if (doClick && useGripGesture)
// {
// if (body.HandLeftState == HandState.Closed)
// {
// if (!wasLeftGrip)
// {
// MouseControl.MouseLeftDown();
// wasLeftGrip = true;
// }
// }
// else if (body.HandLeftState == HandState.Open)
// {
// if (wasLeftGrip)
// {
// MouseControl.MouseLeftUp();
// wasLeftGrip = false;
// }
// }
// }
//}
else
{
wasLeftGrip = true;
wasRightGrip = true;
alreadyTrackedPos = false;
}
// 第一个被跟踪的身体
break;
}
}
}
