​

// Create a variable for your SliderV

let s;

​

function setup() {

  createCanvas(400, 400);

  gui = createGui();

  // Create SliderV.

  // The last two optional arguments define the min and max (minimum and maximum) values.

  // The default min and max values are 0 and 1, respectively.

  s = createSliderV("SliderV", 50, 50, 32, 300, 25, 250);

}

​

function draw() {

  background(220);

  drawGui();

  if (s.isChanged) {

    // Print a message when SliderV is changed

    // that displays its value.

    print(s.label + " = " + s.val);

  }

  // Use SliderV's value to determine where the ellipse is drawn.

  fill(0, 0, 255);

  ellipse(250, 200, s.val);

}

​

/// Add these lines below sketch to prevent scrolling on mobile

function touchMoved() {

  // do some stuff

  return false;

}