void _handGenerator_HandCreate(ProductionNode node, uint id, ref xn.Point3D position, float fTime)
{
if (_startTime == 0)
{
_traceHistory = new SortedList<float, xn.Point3D>();
_startTime = fTime;
_traceHistory.Add(0, position);
_id = id;
System.Diagnostics.Debug.WriteLine("Hand created");
}
else
{
_handsGenerator.StopTracking(id);
}
}
/// <summary>
/// Checks if a swipe is completed
/// </summary>
/// <param name="lastPosition">The last position of the swip</param>
/// <param name="duration">The duration of the swipe</param>
/// <param name="change">The change in position of the swipe</param>
/// <param name="detectingGesture">The swipe that is being checked</param>
/// <returns>A boolean to indicate that the swipe is completed</returns>
private bool CheckPushCompleted(xn.Point3D lastPosition, float duration, float change, Gestures detectingGesture)
{
if (change >= _treshHold)
{
//Check if the swipe was fast enough.
//If it is to slow it is not a swipe
float speed = ((change / 1000) / duration);
if (speed > _speedTreshold)
{
PushGestureRecognisedEventHandler(this, new PushGestureRecognisedEventArgs(detectingGesture, lastPosition, speed));
}
//Reset settings
ResetValues();
return true;
}
return false;
}
/*
private Bitmap CreateBitmap(byte[] data)
{
// Do the magic to create a bitmap
int stride = _camWidth * _bytesPerPixel;
GCHandle handle = GCHandle.Alloc(data, GCHandleType.Pinned);
int scan0 = (int)handle.AddrOfPinnedObject();
scan0 += (_camHeight - 1) * stride;
Bitmap b = new Bitmap(_camWidth, _camHeight, -stride, PixelFormat.Format24bppRgb, (IntPtr)scan0);
// Now you can free the handle
handle.Free();
return b;
}
*/
/*
private void CreateImageBitmap(XnMImageMetaData imageMd, out InteropBitmap interopBitmap, out Bitmap bitmap)
{
var format = MapPixelFormat(imageMd.PixelFormat);
var bmpWidth = (int)imageMd.FullXRes;
var bmpHeight = (int)imageMd.FullYRes;
var numBytes = (uint)(bmpWidth * bmpHeight * format.BitsPerPixel / 8);
var stride = (bmpWidth * format.BitsPerPixel / 8);
var section = NativeMethods.CreateFileMapping(NativeMethods.INVALID_HANDLE_VALUE, IntPtr.Zero, NativeMethods.PAGE_READWRITE, 0, numBytes, null);
var map = NativeMethods.MapViewOfFile(section, NativeMethods.FILE_MAP_ALL_ACCESS, 0, 0, numBytes);
interopBitmap = (InteropBitmap)Imaging.CreateBitmapSourceFromMemorySection(section,
bmpWidth, bmpHeight, format, stride, 0);
bitmap = new Bitmap(bmpWidth, bmpHeight, stride, PixelFormat.Format24bppRgb, map);
NativeMethods.CloseHandle(section);
}
*/
private static System.Windows.Media.PixelFormat MapPixelFormat(xn.PixelFormat xnMPixelFormat)
{
switch (xnMPixelFormat)
{
case xn.PixelFormat.Grayscale8Bit:
return PixelFormats.Gray8;
case xn.PixelFormat.Grayscale16Bit:
return PixelFormats.Gray16;
case xn.PixelFormat.RGB24:
return PixelFormats.Rgb24;
case xn.PixelFormat.YUV422:
default:
throw new NotSupportedException();
}
}
void sessionManager_SessionStart(ref xn.Point3D position)
{
this.flowRouter.SetActive(this.selectableSlider);
}
void selectableSlider_PrimaryPointCreate(ref xnv.HandPointContext context, ref xn.Point3D ptFocus)
{
this.SliderArea.BackColor = Color.Red;
}
void sessionManager_SessionStart(ref xn.Point3D position)
{
}
void pointControl_PrimaryPointCreate(ref xnv.HandPointContext context, ref xn.Point3D pnt)
{
primaryHand = context;
}
private MVector3D GetVector(xn.Point3D p)
{
return new MVector3D(p.X, p.Y, p.Z);
}
internal virtual void StartTracking(xn.Point3D point)
{
_handsGenerator.StartTracking(ref point);
_isTracking = true;
}
void _gestureGenerator_GestureRecognized(ProductionNode node, string strGesture, ref xn.Point3D idPosition, ref xn.Point3D endPosition)
{
Gestures gesture;
if(Enum.TryParse<Gestures>(strGesture, out gesture))
{
Point3D point = new Point3D(idPosition.X, idPosition.Y, idPosition.Z);
GestureDetected(this, new GestureRecognisedEventArgs(gesture, point));
}
}
void _gestureGenerator_GestureProgress(ProductionNode node, string strGesture, ref xn.Point3D position, float progress)
{
//throw new NotImplementedException();
}
public PushGestureRecognisedEventArgs(Gestures gesture, xn.Point3D point, float speed)
{
_gesture = gesture;
_point = new Point3D(point.X, point.Y, point.Z);
_speed = speed;
}
public SwipeGestureRecognisedEventArgs(Gestures gesture, xn.Point3D point)
{
_gesture = gesture;
_point = new Point3D(point.X, point.Y, point.Z) ;
}
public StillGestureRecognisedEventArgs(Gestures gesture, xn.Point3D point, float fTime)
{
_gesture = gesture;
_point = new Point3D(point.X, point.Y, point.Z);
_timeHold = fTime;
}
private MVector3D GetVectorFromJoint(Dictionary<xn.SkeletonJoint, xn.SkeletonJointPosition> joints, xn.SkeletonJoint joint)
{
return this.GetVector(joints[joint].position);
}
internal xn.Point3D ConvertProjectiveToRealWorld(xn.Point3D projective)
{
return _videoTracker._depthNode.ConvertProjectiveToRealWorld(projective);
}
void _handGenerator_HandUpdate(ProductionNode node, uint id, ref xn.Point3D position, float fTime)
{
if (id == _id)
{
float timeTracking = fTime - _startTime;
_traceHistory.Add(timeTracking, position);
CheckStatus();
System.Diagnostics.Debug.WriteLine("Hand update for " + timeTracking);
}
}
void _startSessionGenerator_GestureProgress(ProductionNode node, string strGesture, ref xn.Point3D position, float progress)
{
System.Diagnostics.Debug.WriteLine("Gesture Progress:" + progress);
//throw new NotImplementedException();
}
void _startSessionGenerator_GestureRecognized(ProductionNode node, string strGesture, ref xn.Point3D idPosition, ref xn.Point3D endPosition)
{
System.Diagnostics.Debug.WriteLine("Gesture Recognized:" + strGesture);
switch (strGesture)
{
case "Wave":
case "Click":
if (State == SessionState.Stopped)
{
State = SessionState.Starting;
_startSessionGenerator.RemoveGesture("Wave");
_startSessionGenerator.RemoveGesture("Click");
_startSessionGenerator.AddGesture("RaiseHand");
_gestureGenerator.StartGenerating();
}
break;
case "RaiseHand":
if (State == SessionState.Halted || State == SessionState.Starting)
{
System.Diagnostics.Debug.WriteLine("Raised hand");
foreach (var hg in _handGestures)
{
if(!hg.IsTracking) hg.StartTracking(idPosition);
}
State = SessionState.InProgress;
}
break;
default:
break;
}
}
/// <summary>
/// Checks if a swipe is completed
/// </summary>
/// <param name="lastPosition">The last position of the swip</param>
/// <param name="duration">The duration of the swipe</param>
/// <param name="change">The change in position of the swipe</param>
/// <param name="detectingGesture">The swipe that is being checked</param>
/// <returns>A boolean to indicate that the swipe is completed</returns>
private bool CheckSwipeCompleted(xn.Point3D lastPosition, float duration, float change, Gestures detectingGesture)
{
if (change >= _treshHold)
{
//Check if the swipe was fast enough.
//If it is to slow it is not a swipe
float speed = ((change / 1000) / duration);
if (speed > _speedTreshold)
{
SwipeGestureRecognisedEventHandler(this, new SwipeGestureRecognisedEventArgs(detectingGesture, lastPosition));
}
//Reset settings
ResetValues();
return true;
}
else
{
switch (detectingGesture)
{
case Gestures.SwipeRight:
case Gestures.SwipeLeft:
ResetHorizontalValues();
break;
case Gestures.SwipeDown:
case Gestures.SwipeUp:
ResetVerticalValues();
break;
}
}
return false;
}
