e2_gestures.pde

import de.voidplus.leapmotion.*;

LeapMotion leap;

void setup(){
  size(800, 500, OPENGL);
  background(255);
  // ...
    
  leap = new LeapMotion(this).withGestures();
  // leap = new LeapMotion(this).withGestures("circle, swipe, screen_tap, key_tap");
  // leap = new LeapMotion(this).withGestures("swipe"); // Leap detects only swipe gestures.
}

void draw(){
  background(255);
  // ...
}


// ----- SWIPE GESTURE -----

void leapOnSwipeGesture(SwipeGesture g, int state){
  int     id               = g.getId();
  Finger  finger           = g.getFinger();
  PVector position         = g.getPosition();
  PVector position_start   = g.getStartPosition();
  PVector direction        = g.getDirection();
  float   speed            = g.getSpeed();
  long    duration         = g.getDuration();
  float   duration_seconds = g.getDurationInSeconds();

  switch(state){
    case 1:  // Start
      break;
    case 2: // Update
      break;
    case 3: // Stop
      println("SwipeGesture: "+id);
      break;
  }
}


// ----- CIRCLE GESTURE -----

void leapOnCircleGesture(CircleGesture g, int state){
  int     id               = g.getId();
  Finger  finger           = g.getFinger();
  PVector position_center  = g.getCenter();
  float   radius           = g.getRadius();
  float   progress         = g.getProgress();
  long    duration         = g.getDuration();
  float   duration_seconds = g.getDurationInSeconds();
  int     direction        = g.getDirection();

  switch(state){
    case 1:  // Start
      break;
    case 2: // Update
      break;
    case 3: // Stop
      println("CircleGesture: "+id);
      break;
  }
  
  switch(direction){
    case 0: // Anticlockwise/Left gesture
      break;
    case 1: // Clockwise/Right gesture
      break;
  }
}


// ----- SCREEN TAP GESTURE -----

void leapOnScreenTapGesture(ScreenTapGesture g){
  int     id               = g.getId();
  Finger  finger           = g.getFinger();
  PVector position         = g.getPosition();
  PVector direction        = g.getDirection();
  long    duration         = g.getDuration();
  float   duration_seconds = g.getDurationInSeconds();

  println("ScreenTapGesture: "+id);
}


// ----- KEY TAP GESTURE -----

void leapOnKeyTapGesture(KeyTapGesture g){
  int     id               = g.getId();
  Finger  finger           = g.getFinger();
  PVector position         = g.getPosition();
  PVector direction        = g.getDirection();
  long    duration         = g.getDuration();
  float   duration_seconds = g.getDurationInSeconds();
  
  println("KeyTapGesture: "+id);
}