C++ Frame::tools方法代码示例

fdata get_finger_positions()
{
    Leap::Frame frame = control.frame();
    Leap::FingerList fingers = frame.fingers();
    Leap::ToolList tools = frame.tools();
    Leap::HandList hands = frame.hands();

    //std::vector<std::pair<cl_float4, int>> positions;

    fdata hand_data;


    int p = 0;

    for(int i=0; i<40; i++)
    {
        hand_data.fingers[i] = 0.0f;
    }

    ///will explode if more than 2
    for(int i=0; i<hands.count(); i++)
    {
        const Leap::Hand hand = hands[i];
        Leap::FingerList h_fingers = hand.fingers();

        float grab_strength = hand.grabStrength();

        hand_data.grab_confidence[i] = grab_strength;

        for(int j=0; j<h_fingers.count(); j++)
        {
            const Leap::Finger finger = h_fingers[j];

            float mfingerposx = finger.tipPosition().x;
            float mfingerposy = finger.tipPosition().y;
            float mfingerposz = finger.tipPosition().z;

            //cl_float4 ps = {mfingerposx, mfingerposy, mfingerposz, 0.0f};
            //cl_float4 ps = {mfingerposx, mfingerposy, mfingerposz, 0.0f};

            int id = finger.id();

            hand_data.fingers[p++] = mfingerposx;
            hand_data.fingers[p++] = mfingerposy;
            hand_data.fingers[p++] = mfingerposz;
            hand_data.fingers[p++] = 0.0f;

            //positions.push_back(std::pair<cl_float4, int>(ps, id));

        }
    }

    return hand_data;
}

static Leap::ToolList pointables(const Leap::Frame &frame) {
    return frame.tools();
}

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.........