C++ Hand::id方法代码示例

void eleap::eleap_t::impl_t::onFrame(const Leap::Controller& controller)
{
    const Leap::Frame frame = controller.frame();
    if (frame.isValid())
    {
        // send the known hands in this frame, this will handle hands coming and going
        const Leap::HandList hands = frame.hands();
        {
            unsigned long long time_encoded = (0&0xffffffff)<<8 | (DATA_KNOWN_HANDS&0xff);

            float *f;
            unsigned char *dp;
            piw::data_nb_t d = ctx_.allocate_host(time_encoded,INT32_MAX,INT32_MIN,0,BCTVTYPE_INT,sizeof(int32_t),&dp,hands.count(),&f);
            memset(f,0,hands.count()*sizeof(int32_t));
            *dp = 0;

            for(int i = 0; i < hands.count(); ++i)
            {
                const Leap::Hand hand = hands[i];
                if(hand.isValid() && hand.fingers().count() > 1)
                {
                    ((int32_t *)f)[i] = hand.id();
                }
            }
            enqueue_fast(d,1);
        }
        
        // handle the actual data for the detected hands
        for(int i = 0; i < hands.count(); ++i)
        {
            const Leap::Hand hand = hands[i];
            if(hand.isValid() && hand.fingers().count() > 1)
            {
                unsigned long long time_encoded = (hand.id()&0xffffffff)<<8 | (DATA_PALM_POSITION&0xff);

                const Leap::Vector palm_pos = hand.palmPosition();

                float *f;
                unsigned char *dp;
                piw::data_nb_t d = ctx_.allocate_host(time_encoded,600,-600,0,BCTVTYPE_FLOAT,sizeof(float),&dp,3,&f);
                memset(f,0,3*sizeof(float));
                *dp = 0;

                f[0] = piw::normalise(600,-600,0,palm_pos.x);
                f[1] = piw::normalise(600,-600,0,palm_pos.y);
                f[2] = piw::normalise(600,-600,0,palm_pos.z);

                enqueue_fast(d,1);
            }
        }
    }
}

bool handForId(int32 checkId, Leap::HandList hands, Leap::Hand& returnHand)
{
	for (int i = 0; i < hands.count(); i++)
	{
		Leap::Hand hand = hands[i];
		if (checkId == hand.id()){
			returnHand = hand;
			return true;
		}
	}
	return false;
}

GestureFrame LMRecorder::prepareDataClone(const Leap::Frame frame, double timestamp)
{

	GestureFrame outputFrame;

	outputFrame.setTimestamp(timestamp);

	Leap::HandList handsInFrame = frame.hands();
	for(int handIndex=0; handIndex<handsInFrame.count(); handIndex++)
	{
		Leap::Hand currHand = handsInFrame[handIndex];

		//create GestureHand
		GestureHand gestureHand(
			currHand.id(),
			Vertex(currHand.palmPosition().x, currHand.palmPosition().y, currHand.palmPosition().z),
			Vertex(0, 0, 0/*currHand.stabilizedPalmPosition().x, currHand.stabilizedPalmPosition().y, currHand.stabilizedPalmPosition().z*/),
			Vertex(currHand.palmNormal().x, currHand.palmNormal().y, currHand.palmNormal().z),
			Vertex(currHand.direction().x, currHand.direction().y, currHand.direction().z)
		);
		gestureHand.setOrderValue(currHand.palmPosition().x);

		Vertex planeNormalVec = gestureHand.getDirection().crossProduct(gestureHand.getPalmNormal()).getNormalized();

		Leap::FingerList fingersInCurrHand = currHand.fingers();
		for (int fingerIndex=0; fingerIndex<fingersInCurrHand.count(); fingerIndex++)
		{
			Leap::Finger currFinger = fingersInCurrHand[fingerIndex];

			Leap::Vector leapFingerTipPos = currFinger.tipPosition();
			Vertex fingerTipPos(leapFingerTipPos.x, leapFingerTipPos.y, leapFingerTipPos.z);
			float distance = getPointDistanceFromPlane(fingerTipPos, gestureHand.getPalmPosition(), planeNormalVec);

			//create GestureFinger
			GestureFinger gestureFinger(
				currFinger.id(),
				fingerTipPos,
				Vertex(currFinger.stabilizedTipPosition().x, currFinger.stabilizedTipPosition().y, currFinger.stabilizedTipPosition(). z),
				Vertex(currFinger.direction().x, currFinger.direction().y, currFinger.direction().z),
				currFinger.length(),
				currFinger.width()
			);
			gestureFinger.setOrderValue(distance);

			gestureHand.addFinger(gestureFinger);
		}
		gestureHand.sortFingers();

		outputFrame.addHand(gestureHand);
	}
	outputFrame.sortHands();
}

bool FLeapMotionInputDevice::HandForId(int32 CheckId, Leap::HandList Hands, Leap::Hand& ReturnHand)
{
	for (int i = 0; i < Hands.count(); i++)
	{
		Leap::Hand Hand = Hands[i];
		if (CheckId == Hand.id())
		{
			ReturnHand = Hand;
			return true;
		}
	}
	return false;
}

void LeapMotionListener::onFrame(const Leap::Controller & controller)
{
    const Leap::Frame frame = controller.frame();

    Leap::HandList hands = frame.hands();
    for (Leap::HandList::const_iterator hl = hands.begin(); hl!=hands.end();hl++)
    {
        const Leap::Hand hand = *hl;
        QString handType = hand.isLeft() ? "Left hand" : "Right hand";
        qDebug()<<handType<<"id: "<<hand.id()<<"palm position: "
               <<hand.palmPosition().x<<hand.palmPosition().y<<hand.palmPosition().z;

        QFile f("share.dat");
        if(!f.open(QIODevice::WriteOnly | QIODevice::Text))
            return;
        QTextStream out(&f);
        out<<QString("%1 %2 %3").arg(hand.palmPosition().x)
          .arg(hand.palmPosition().y).arg(hand.palmPosition().z);

        f.close();

    }

}

//Main Event driven tick
void ULeapController::InterfaceEventTick(float DeltaTime)
{
	//This is our tick event that is forwarded from the delegate, check validity
	if (!_private->interfaceDelegate) return;

	//Pointers
	Leap::Frame frame = _private->leap.frame();
	Leap::Frame pastFrame = _private->leap.frame(1);

	//-Hands-

	//Hand Count
	int handCount = frame.hands().count();

	if (_private->pastState.handCount != handCount)
	{
		ILeapEventInterface::Execute_HandCountChanged(_private->interfaceDelegate, handCount);
		
		//Zero our input mapping orientations (akin to letting go of a joystick)
		if (handCount == 0)
		{
			EmitAnalogInputEventForKey(EKeysLeap::LeapLeftPalmPitch, 0, 0, 0);
			EmitAnalogInputEventForKey(EKeysLeap::LeapLeftPalmYaw, 0, 0, 0);
			EmitAnalogInputEventForKey(EKeysLeap::LeapLeftPalmRoll, 0, 0, 0);
			EmitAnalogInputEventForKey(EKeysLeap::LeapRightPalmPitch, 0, 0, 0);
			EmitAnalogInputEventForKey(EKeysLeap::LeapRightPalmYaw, 0, 0, 0);
			EmitAnalogInputEventForKey(EKeysLeap::LeapRightPalmRoll, 0, 0, 0);
		}
	}

	//Cycle through each hand
	for (int i = 0; i < handCount; i++)
	{
		Leap::Hand hand = frame.hands()[i];
		LeapHandStateData pastHandState = _private->pastState.stateForId(hand.id());		//we use a custom class to hold reliable state tracking based on id's

		//Make a ULeapHand
		if (_private->eventHand == NULL)
		{
			_private->eventHand = NewObject<ULeapHand>(this);
			_private->eventHand->SetFlags(RF_RootSet);
		}
		_private->eventHand->setHand(hand);

		//Emit hand
		ILeapEventInterface::Execute_LeapHandMoved(_private->interfaceDelegate, _private->eventHand);

		//Left/Right hand forwarding
		if (hand.isRight())
		{
			ILeapEventInterface::Execute_LeapRightHandMoved(_private->interfaceDelegate, _private->eventHand);
			//Input Mapping
			FRotator palmOrientation = _private->eventHand->PalmOrientation;
			EmitAnalogInputEventForKey(EKeysLeap::LeapRightPalmPitch, palmOrientation.Pitch * LEAP_IM_SCALE, 0, 0);
			EmitAnalogInputEventForKey(EKeysLeap::LeapRightPalmYaw, palmOrientation.Yaw * LEAP_IM_SCALE, 0, 0);
			EmitAnalogInputEventForKey(EKeysLeap::LeapRightPalmRoll, palmOrientation.Roll * LEAP_IM_SCALE, 0, 0);
		} else if (hand.isLeft())
		{
			ILeapEventInterface::Execute_LeapLeftHandMoved(_private->interfaceDelegate, _private->eventHand);
			//Input Mapping
			FRotator palmOrientation = _private->eventHand->PalmOrientation;
			EmitAnalogInputEventForKey(EKeysLeap::LeapLeftPalmPitch, palmOrientation.Pitch * LEAP_IM_SCALE, 0, 0);
			EmitAnalogInputEventForKey(EKeysLeap::LeapLeftPalmYaw, palmOrientation.Yaw * LEAP_IM_SCALE, 0, 0);
			EmitAnalogInputEventForKey(EKeysLeap::LeapLeftPalmRoll, palmOrientation.Roll * LEAP_IM_SCALE, 0, 0);
		}

		//Grabbing
		float grabStrength = hand.grabStrength();
		bool grabbed = handClosed(grabStrength);

		if (grabbed)
			ILeapEventInterface::Execute_LeapHandGrabbing(_private->interfaceDelegate, grabStrength, _private->eventHand);

		if (grabbed && !pastHandState.grabbed)
		{
			ILeapEventInterface::Execute_LeapHandGrabbed(_private->interfaceDelegate, grabStrength, _private->eventHand);
			
			//input mapping
			if (_private->eventHand->HandType == LeapHandType::HAND_LEFT)
				EmitKeyDownEventForKey(EKeysLeap::LeapLeftGrab, 0, 0);
			else
				EmitKeyDownEventForKey(EKeysLeap::LeapRightGrab, 0, 0);
		}else if (!grabbed && pastHandState.grabbed)
		{
			ILeapEventInterface::Execute_LeapHandReleased(_private->interfaceDelegate, grabStrength, _private->eventHand);

			//input mapping
			if (_private->eventHand->HandType == LeapHandType::HAND_LEFT)
				EmitKeyUpEventForKey(EKeysLeap::LeapLeftGrab, 0, 0);
			else
				EmitKeyUpEventForKey(EKeysLeap::LeapRightGrab, 0, 0);
		}

		//Pinching
		float pinchStrength = hand.pinchStrength();
		bool pinched = handPinched(pinchStrength);

		//While grabbing disable pinching detection, this helps to reduce spam as pose confidence plummets
		if (grabbed) pinched = pastHandState.pinched;
//.........这里部分代码省略.........

void FLeapMotionInputDevice::ParseEvents()
{
	//Optimization: If we don't have any delegates, skip
	if (EventDelegates.Num() == 0)
	{
		return;
	}

	//Pointers
	Leap::Frame Frame = ControllerData.LeapController.frame();
	Leap::Frame PastFrame = ControllerData.LeapController.frame(1);

	//Calculate HMD Timewarp if valid
	if (GEngine->HMDDevice.IsValid() && ControllerData.bTimeWarpEnabled) {
		LeapHMDSnapshot ThenSnapshot = HMDSamples->HMDSampleClosestToTimestamp(Frame.timestamp());
		LeapHMDSnapshot NowSnapShot = HMDSamples->CurrentHMDSample();

		LeapHMDSnapshot HistorySnapshot = HMDSamples->LastHMDSample();	//reduce jitter
		//ControllerData.TimeWarpSnapshot = NowSnapShot.Difference(ThenSnapshot, ControllerData.TimeWarpFactor);// * ControllerData.TimeWarpFactor;

		FQuat WarpQuat = NowSnapShot.Orientation;//FQuat::Slerp(NowSnapShot.Orientation, HistorySnapshot.Orientation, ControllerData.TimeWarpTween);
		FQuat ThenTweened = FQuat::Slerp(ThenSnapshot.Orientation, HistorySnapshot.Orientation, ControllerData.TimeWarpTween);

		ControllerData.TimeWarpSnapshot.Orientation = (WarpQuat.Inverse() * ControllerData.TimeWarpFactor) * ThenTweened;

		ControllerData.TimeWarpAmountMs = (ControllerData.TimeWarpSnapshot.Timestamp) / 1000.f;
	}

	//-Hands-

	//Hand Count
	int HandCount = Frame.hands().count();

	if (PastState->HandCount != HandCount)
	{
		CallFunctionOnDelegates([&](UObject* EventDelegate)
		{
			ILeapEventInterface::Execute_HandCountChanged(EventDelegate, HandCount);
		});
		//Zero our input mapping orientations (akin to letting go of a joystick)
		if (HandCount == 0)
		{
			EmitAnalogInputEventForKey(EKeysLeap::LeapLeftPalmPitch, 0, 0, 0);
			EmitAnalogInputEventForKey(EKeysLeap::LeapLeftPalmYaw, 0, 0, 0);
			EmitAnalogInputEventForKey(EKeysLeap::LeapLeftPalmRoll, 0, 0, 0);
			EmitAnalogInputEventForKey(EKeysLeap::LeapRightPalmPitch, 0, 0, 0);
			EmitAnalogInputEventForKey(EKeysLeap::LeapRightPalmYaw, 0, 0, 0);
			EmitAnalogInputEventForKey(EKeysLeap::LeapRightPalmRoll, 0, 0, 0);
		}
	}

	//Cycle through each hand
	for (int i = 0; i < HandCount; i++)
	{
		Leap::Hand Hand = Frame.hands()[i];
		LeapHandStateData PastHandState = PastState->StateForId(Hand.id());		//we use a custom class to hold reliable state tracking based on id's

																				//Make a ULeapHand
		if (PEventHand == nullptr)
		{
			PEventHand = NewObject<ULeapHand>();
			PEventHand->AddToRoot();
		}
		PEventHand->SetHand(Hand);

		//Emit hand
		CallFunctionOnDelegates([&](UObject* EventDelegate)
		{
			ILeapEventInterface::Execute_LeapHandMoved(EventDelegate, PEventHand);
		});


		//Left/Right hand forwarding
		if (Hand.isRight())
		{
			CallFunctionOnDelegates([&](UObject* EventDelegate)
			{
				ILeapEventInterface::Execute_LeapRightHandMoved(EventDelegate, PEventHand);
			});

			//Input Mapping
			FRotator PalmOrientation = PEventHand->PalmOrientation;
			EmitAnalogInputEventForKey(EKeysLeap::LeapRightPalmPitch, PalmOrientation.Pitch * LEAP_IM_SCALE, 0, 0);
			EmitAnalogInputEventForKey(EKeysLeap::LeapRightPalmYaw, PalmOrientation.Yaw * LEAP_IM_SCALE, 0, 0);
			EmitAnalogInputEventForKey(EKeysLeap::LeapRightPalmRoll, PalmOrientation.Roll * LEAP_IM_SCALE, 0, 0);
		}
		else if (Hand.isLeft())
		{
			CallFunctionOnDelegates([&](UObject* EventDelegate)
			{
				ILeapEventInterface::Execute_LeapLeftHandMoved(EventDelegate, PEventHand);
			});

			//Input Mapping
			FRotator PalmOrientation = PEventHand->PalmOrientation;
			EmitAnalogInputEventForKey(EKeysLeap::LeapLeftPalmPitch, PalmOrientation.Pitch * LEAP_IM_SCALE, 0, 0);
			EmitAnalogInputEventForKey(EKeysLeap::LeapLeftPalmYaw, PalmOrientation.Yaw * LEAP_IM_SCALE, 0, 0);
			EmitAnalogInputEventForKey(EKeysLeap::LeapLeftPalmRoll, PalmOrientation.Roll * LEAP_IM_SCALE, 0, 0);
		}

//.........这里部分代码省略.........

void oleap_bang(t_oleap *x)
{

	const Leap::Frame frame = x->leap->frame();
    const int64_t frame_id = frame.id();
    Leap::Controller controller;
    
	// ignore the same frame
	if (frame_id == x->frame_id_save) return;
	x->frame_id_save = frame_id;
	
	//outlet_anything(x->outlet, gensym("frame_start"), 0, nil);
    
    char buff[128];
    
    const Leap::HandList hands = frame.hands();
	const size_t numHands = hands.count();
    const Leap::Hand leftmost = hands.leftmost();
    const Leap::Hand rightmost = hands.rightmost();
    
    t_osc_bundle_u *bundle = osc_bundle_u_alloc();//alloc creates memory for and initializes the bundle

    controller.enableGesture(Leap::Gesture::TYPE_CIRCLE);
    controller.enableGesture(Leap::Gesture::TYPE_KEY_TAP);
    controller.enableGesture(Leap::Gesture::TYPE_SCREEN_TAP);
    controller.enableGesture(Leap::Gesture::TYPE_SWIPE);
    
    
    // Get gestures
    const Leap::GestureList gestures = frame.gestures();
    
    for (int g = 0; g < gestures.count(); ++g) {
        Leap::Gesture gesture = gestures[g];
        
        switch (gesture.type()) {
            case Leap::Gesture::TYPE_CIRCLE:
            {
                
                Leap::CircleGesture circle = gesture;
                std::string clockwiseness;
                
                sprintf(buff,"/gesture/circle/center/x");
                oleap_bundleMessage(bundle,buff,circle.center().x);
                
                sprintf(buff,"/gesture/circle/center/y");
                oleap_bundleMessage(bundle,buff,circle.center().y);
                
                sprintf(buff,"/gesture/circle/center/z");
                oleap_bundleMessage(bundle,buff,circle.center().z);
                
                sprintf(buff,"/gesture/circle/pitch");
                oleap_bundleMessage(bundle,buff,circle.center().pitch());
                
                sprintf(buff,"/gesture/circle/yaw");
                oleap_bundleMessage(bundle,buff,circle.center().yaw());
                
                sprintf(buff,"/gesture/circle/roll");
                oleap_bundleMessage(bundle,buff,circle.center().roll());
                
                sprintf(buff,"/gesture/circle/radius");
                oleap_bundleMessage(bundle,buff,circle.radius());
                
                sprintf(buff,"/gesture/circle/duration");
                oleap_bundleMessage(bundle,buff,circle.duration());
                
                
                if (circle.pointable().direction().angleTo(circle.normal()) <= Leap::PI/4) {
                    clockwiseness = "clockwise";
                    
                    sprintf(buff,"/gesture/circle/clockwiseness/");
                    oleap_bundleMessage(bundle,buff,1);
                    
                } else {
                    clockwiseness = "counterclockwise";
                    
                    sprintf(buff,"/gesture/circle/clockwiseness/");
                    oleap_bundleMessage(bundle,buff,-1);
                }
                
                
                // Calculate angle swept since last frame
                float sweptAngle = 0;
                if (circle.state() != Leap::Gesture::STATE_START) {
                    Leap::CircleGesture previousUpdate = Leap::CircleGesture(controller.frame(1).gesture(circle.id()));
                    sweptAngle = (circle.progress() - previousUpdate.progress()) * 2 * Leap::PI;
                    
                    sprintf(buff,"/gesture/circle/angle/sweep");
                    oleap_bundleMessage(bundle,buff,sweptAngle);
                }
            }
                
            case Leap::Gesture::TYPE_SWIPE:
            {
                Leap::SwipeGesture swipe = gesture;
                int swipe_id = gesture.id();
                int gesture_state = gesture.state();
                Leap::Vector swipe_direction = swipe.direction();
                float swipe_speed = swipe.speed();
                
                ////////////////////////////////Swipe data
//.........这里部分代码省略.........

void LeapManager::nextFrame(Avatar& avatar) {
    // Apply the frame data directly to the avatar.
    Hand& hand = avatar.getHand();
    
    // If we actually get valid Leap data, this will be set to true;
    bool gotRealData = false;

    if (controllersExist()) {
        _listener->onFrame(*_controller);
    }

#ifndef LEAP_STUBS
    if (controllersExist()) {
        gotRealData = true;
        // First, see which palms and fingers are still valid.
        Leap::Frame& frame = _listener->lastFrame;
        
        // Note that this is O(n^2) at worst, but n is very small.

        // After this many frames of no data, assume the digit is lost.
        const int assumeLostAfterFrameCount = 10;

        // Increment our frame data counters
        for (size_t i = 0; i < hand.getNumPalms(); ++i) {
            PalmData& palm = hand.getPalms()[i];
            palm.incrementFramesWithoutData();
            if (palm.getFramesWithoutData() > assumeLostAfterFrameCount) {
                palm.setActive(false);
            }
            for (size_t f = 0; f < palm.getNumFingers(); ++f) {
                FingerData& finger = palm.getFingers()[f];
                finger.incrementFramesWithoutData();
                if (finger.getFramesWithoutData() > assumeLostAfterFrameCount) {
                    finger.setActive(false);
                }
            }
        }

        size_t numLeapHands = frame.hands().count();
        std::vector<PalmData*> palmAssignment(numLeapHands);
        
        // Look for matches
        for (size_t index = 0; index < numLeapHands; ++index) {
            PalmData* takeoverCandidate = NULL;
            palmAssignment[index] = NULL;
            Leap::Hand leapHand = frame.hands()[index];
            int id = leapHand.id();
            if (leapHand.isValid()) {
                for (size_t i = 0; i < hand.getNumPalms() && palmAssignment[index] == NULL; ++i) {
                    PalmData& palm = hand.getPalms()[i];
                    if (palm.getLeapID() == id) {
                        // Found hand with the same ID. We're set!
                        palmAssignment[index] = &palm;
                        palm.resetFramesWithoutData();
                    }
                    else if (palm.getFramesWithoutData() > assumeLostAfterFrameCount) {
                        takeoverCandidate = &palm;
                    }
                }
                if (palmAssignment[index] == NULL) {
                    palmAssignment[index] = takeoverCandidate;
                }
                if (palmAssignment[index] == NULL) {
                    palmAssignment[index] = &hand.addNewPalm();
                }
            }
        }
        
        // Apply the assignments
        for (size_t index = 0; index < numLeapHands; ++index) {
            if (palmAssignment[index]) {
                Leap::Hand leapHand = frame.hands()[index];
                PalmData& palm = *(palmAssignment[index]);

                palm.resetFramesWithoutData();
                palm.setLeapID(leapHand.id());
                palm.setActive(true);
                const Leap::Vector pos = leapHand.palmPosition();
                const Leap::Vector normal = leapHand.palmNormal();
                palm.setRawPosition(glm::vec3(pos.x, pos.y, pos.z));
                palm.setRawNormal(glm::vec3(normal.x, normal.y, normal.z));
            }
        }

        // Look for fingers per palm
        for (size_t i = 0; i < hand.getNumPalms(); ++i) {
            PalmData& palm = hand.getPalms()[i];
            if (palm.isActive()) {
                Leap::Hand leapHand = frame.hand(palm.getLeapID());
                if (leapHand.isValid()) {
                    int numLeapFingers = leapHand.fingers().count();
                    std::vector<FingerData*> fingerAssignment(numLeapFingers);

                    
                    // Look for matches
                    for (size_t index = 0; index < numLeapFingers; ++index) {
                        FingerData* takeoverCandidate = NULL;
                        fingerAssignment[index] = NULL;
                        Leap::Finger leapFinger = leapHand.fingers()[index];
                        int id = leapFinger.id();
//.........这里部分代码省略.........

void SampleListener::onFrame(const Leap::Controller& controller) {
  // Get the most recent frame and report some basic information
  const Leap::Frame frame = controller.frame();
  std::cout << "Frame id: " << frame.id()
            << ", timestamp: " << frame.timestamp()
            << ", hands: " << frame.hands().count()
            << ", extended fingers: " << frame.fingers().extended().count()
            << ", tools: " << frame.tools().count()
            << ", gestures: " << frame.gestures().count() << std::endl;

  Leap::HandList hands = frame.hands();
  for (Leap::HandList::const_iterator hl = hands.begin(); hl != hands.end(); ++hl) {
    // Get the first hand
    const Leap::Hand hand = *hl;
    std::string handType = hand.isLeft() ? "Left hand" : "Right hand";
    std::cout << std::string(2, ' ') << handType << ", id: " << hand.id()
              << ", palm position: " << hand.palmPosition() << std::endl;
    // Get the hand's normal vector and direction
    const Leap::Vector normal = hand.palmNormal();
    const Leap::Vector direction = hand.direction();

    // Calculate the hand's pitch, roll, and yaw angles
    std::cout << std::string(2, ' ') <<  "pitch: " << direction.pitch() * Leap::RAD_TO_DEG << " degrees, "
              << "roll: " << normal.roll() * Leap::RAD_TO_DEG << " degrees, "
              << "yaw: " << direction.yaw() * Leap::RAD_TO_DEG << " degrees" << std::endl;

    // Get the Arm bone
    Leap::Arm arm = hand.arm();
    std::cout << std::string(2, ' ') <<  "Arm direction: " << arm.direction()
              << " wrist position: " << arm.wristPosition()
              << " elbow position: " << arm.elbowPosition() << std::endl;

    // Get fingers
    const Leap::FingerList fingers = hand.fingers();
    for (Leap::FingerList::const_iterator fl = fingers.begin(); fl != fingers.end(); ++fl) {
      const Leap::Finger finger = *fl;
      std::cout << std::string(4, ' ') <<  fingerNames[finger.type()]
                << " finger, id: " << finger.id()
                << ", length: " << finger.length()
                << "mm, width: " << finger.width() << std::endl;

      // Get finger bones
      for (int b = 0; b < 4; ++b) {
        Leap::Bone::Type boneType = static_cast<Leap::Bone::Type>(b);
        Leap::Bone bone = finger.bone(boneType);
        std::cout << std::string(6, ' ') <<  boneNames[boneType]
                  << " bone, start: " << bone.prevJoint()
                  << ", end: " << bone.nextJoint()
                  << ", direction: " << bone.direction() << std::endl;
      }
    }
  }

  // Get tools
  const Leap::ToolList tools = frame.tools();
  for (Leap::ToolList::const_iterator tl = tools.begin(); tl != tools.end(); ++tl) {
    const Leap::Tool tool = *tl;
    std::cout << std::string(2, ' ') <<  "Tool, id: " << tool.id()
              << ", position: " << tool.tipPosition()
              << ", direction: " << tool.direction() << std::endl;
  }

  // Get gestures
  const Leap::GestureList gestures = frame.gestures();
  for (int g = 0; g < gestures.count(); ++g) {
    Leap::Gesture gesture = gestures[g];

    switch (gesture.type()) {
      case Leap::Gesture::TYPE_CIRCLE:
      {
        Leap::CircleGesture circle = gesture;
        std::string clockwiseness;

        if (circle.pointable().direction().angleTo(circle.normal()) <= Leap::PI/2) {
          clockwiseness = "clockwise";
        } else {
          clockwiseness = "counterclockwise";
        }

        // Calculate angle swept since last frame
        float sweptAngle = 0;
        if (circle.state() != Leap::Gesture::STATE_START) {
          Leap::CircleGesture previousUpdate = Leap::CircleGesture(controller.frame(1).gesture(circle.id()));
          sweptAngle = (circle.progress() - previousUpdate.progress()) * 2 * Leap::PI;
        }
        std::cout << std::string(2, ' ')
                  << "Circle id: " << gesture.id()
                  << ", state: " << stateNames[gesture.state()]
                  << ", progress: " << circle.progress()
                  << ", radius: " << circle.radius()
                  << ", angle " << sweptAngle * Leap::RAD_TO_DEG
                  <<  ", " << clockwiseness << std::endl;
        break;
      }
      case Leap::Gesture::TYPE_SWIPE:
      {
        Leap::SwipeGesture swipe = gesture;
        std::cout << std::string(2, ' ')
          << "Swipe id: " << gesture.id()
          << ", state: " << stateNames[gesture.state()]
//.........这里部分代码省略.........