* 👋 Hello! This is an ml5.js example made and shared with ❤️.

 * Learn more about the ml5.js project: https://ml5js.org/

 * ml5.js license and Code of Conduct: https://github.com/ml5js/ml5-next-gen/blob/main/LICENSE.md

 *

 * This example demonstrates tracking particular parts of the hand through ml5.handPose.

 */

​

let handPose;

let video;

let hands = [];

​

// A variable to track a pinch between thumb and index

let pinch = 0;

​

function preload() {

  // Load the handPose model

  handPose = ml5.handPose();

}

​

function setup() {

  createCanvas(640, 480);

  // Create the webcam video and hide it

  video = createCapture(VIDEO);

  video.size(640, 480);

  video.hide();

  // Start detecting hands from the webcam video

  handPose.detectStart(video, gotHands);

}

​

function draw() {

  // Draw the webcam video

  image(video, 0, 0, width, height);

​

  // If there are two hands

  if (hands.length > 1) {

    // Find the index finger tip of hand 1

    let finger01 = hands[0].index_finger_tip;

​

    // Find the index finger tip of hand 2

    let finger02 = hands[1].index_finger_tip;

    // Draw a circle at hand 1

fill("blue")

    circle(finger01.x, finger01.y, 50);

    // Draw a circle at hand 2

    fill("red");

    circle(finger02.x, finger02.y, 50);

  //A line between the two index fingers

​

    stroke("green")

    strokeWeight(3)

    line(finger01.x, finger01.y, finger02.x, finger02.y);

  }

}

​

// Callback function for when handPose outputs data

function gotHands(results) {

  // Save the output to the hands variable

  hands = results;

}

​