void Quickstart::onFrame(const Leap::Controller &controller) { // returns the most recent frame. older frames can be accessed by passing in // a "history" parameter to retrieve an older frame, up to about 60 // (exact number subject to change) const Leap::Frame frame = controller.frame(); // do nothing unless hands are detected if (frame.hands().empty()) return; // first detected hand const Leap::Hand firstHand = frame.hands()[0]; // first pointable object (finger or tool) const Leap::PointableList pointables = firstHand.pointables(); if (pointables.empty()) return; const Leap::Pointable firstPointable = pointables[0]; // print velocity on the X axis cout << "Pointable X velocity: " << firstPointable.tipVelocity()[0] << endl; const Leap::FingerList fingers = firstHand.fingers(); if (fingers.empty()) return; for (int i = 0; i < fingers.count(); i++) { const Leap::Finger finger = fingers[i]; std::cout << "Detected finger " << i << " at position (" << finger.tipPosition().x << ", " << finger.tipPosition().y << ", " << finger.tipPosition().z << ")" << std::endl; } }
static VALUE tip_velocity(VALUE self) { Leap::Pointable * pointer; Leap::Vector * vector; Data_Get_Struct(self, Leap::Pointable, pointer); vector = new Leap::Vector(pointer->tipVelocity()); return WrapVector(vector); }
void Quickstart::onFrame(const Leap::Controller &controller) { // returns the most recent frame. older frames can be accessed by passing in // a "history" parameter to retrieve an older frame, up to about 60 // (exact number subject to change) const Leap::Frame frame = controller.frame(); // do nothing unless hands are detected if (frame.hands().empty()) return; // retrieve first pointable object (finger or tool) // from the frame const Leap::PointableList pointables = frame.hands()[0].pointables(); if (pointables.empty()) return; const Leap::Pointable firstPointable = pointables[0]; // print velocity on the X axis cout << "Pointable X velocity: " << firstPointable.tipVelocity()[0] << endl; }