private bool isIntermediaryFrameValidGestureFrame(GESTURE gesture, GestureDatabase gestureDatabase)
{
Skeleton currentSkeleton;
AppropriateJointInfo currentAptJointInfo;
gestureDatabase.getLastRecord(out currentSkeleton, out currentAptJointInfo);
switch (gesture)
{
case GESTURE.SWIPE_RIGHT:
{
HCI580_Geometry.Vector2D currentElbowShoulder = new HCI580_Geometry.Vector2D((currentAptJointInfo.shoulderRightPos.X - currentAptJointInfo.elbowRightPos.X),
(currentAptJointInfo.shoulderRightPos.Y - currentAptJointInfo.elbowRightPos.Y));
HCI580_Geometry.Vector2D currentElbowHand = new HCI580_Geometry.Vector2D((currentAptJointInfo.handRightPos.X - currentAptJointInfo.elbowRightPos.X),
(currentAptJointInfo.handRightPos.Y - currentAptJointInfo.elbowRightPos.Y));
// check if hand Y > elbow Y , angle between elbowShoulder and elbowHand negative
if (currentAptJointInfo.handRightPos.Y > currentAptJointInfo.elbowRightPos.Y &&
currentElbowShoulder.cpsign(currentElbowHand) < 0)
{
return true;
}
}
break;
case GESTURE.SWIPE_LEFT:
{
HCI580_Geometry.Vector2D currentElbowShoulder = new HCI580_Geometry.Vector2D((currentAptJointInfo.shoulderRightPos.X - currentAptJointInfo.elbowRightPos.X),
(currentAptJointInfo.shoulderRightPos.Y - currentAptJointInfo.elbowRightPos.Y));
HCI580_Geometry.Vector2D currentElbowHand = new HCI580_Geometry.Vector2D((currentAptJointInfo.handRightPos.X - currentAptJointInfo.elbowRightPos.X),
(currentAptJointInfo.handRightPos.Y - currentAptJointInfo.elbowRightPos.Y));
// check if hand Y > elbow Y , angle between elbowShoulder and elbowHand negative
if (currentAptJointInfo.handRightPos.Y > currentAptJointInfo.elbowRightPos.Y &&
currentElbowShoulder.cpsign(currentElbowHand) < 0)
{
return true;
}
}
break;
}
return false;
}
private bool isFirstValidGestureFrame(GESTURE gesture , GestureDatabase gestureDatabase)
{
Skeleton skeleton;
AppropriateJointInfo aptJointInfo;
gestureDatabase.getLastRecord(out skeleton ,out aptJointInfo);
switch(gesture)
{
case GESTURE.SWIPE_RIGHT:
{
HCI580_Geometry.Vector2D elbowShoulder = new HCI580_Geometry.Vector2D((aptJointInfo.shoulderRightPos.X - aptJointInfo.elbowRightPos.X),
(aptJointInfo.shoulderRightPos.Y - aptJointInfo.elbowRightPos.Y));
HCI580_Geometry.Vector2D elbowHand = new HCI580_Geometry.Vector2D((aptJointInfo.handRightPos.X - aptJointInfo.elbowRightPos.X),
(aptJointInfo.handRightPos.Y - aptJointInfo.elbowRightPos.Y));
// check if hand Y > elbow Y , hand X < elbow X and angle between elbowShoulder and elbowHand negative
if(aptJointInfo.handRightPos.Y > aptJointInfo.elbowRightPos.Y &&
aptJointInfo.handRightPos.X < aptJointInfo.elbowRightPos.X &&
elbowShoulder.cpsign(elbowHand) < 0)
{
return true;
}
}
break;
case GESTURE.SWIPE_LEFT:
{
HCI580_Geometry.Vector2D elbowShoulder = new HCI580_Geometry.Vector2D((aptJointInfo.shoulderRightPos.X - aptJointInfo.elbowRightPos.X),
(aptJointInfo.shoulderRightPos.Y - aptJointInfo.elbowRightPos.Y));
HCI580_Geometry.Vector2D elbowHand = new HCI580_Geometry.Vector2D((aptJointInfo.handRightPos.X - aptJointInfo.elbowRightPos.X),
(aptJointInfo.handRightPos.Y - aptJointInfo.elbowRightPos.Y));
// check if hand Y > elbow Y , hand X < elbow X and angle between elbowShoulder and elbowHand negative
if(aptJointInfo.handRightPos.Y > aptJointInfo.elbowRightPos.Y &&
aptJointInfo.handRightPos.X > aptJointInfo.elbowRightPos.X &&
elbowShoulder.cpsign(elbowHand) < 0)
{
return true;
}
}
break;
}
return false;
}