p5.js strokeWeight() function

The strokeWeight() function in p5.js is used to set the width of the stroke used for lines, points and the border around shapes. The stroke weight is set by using pixels. 

Syntax:

strokeWeight(weight)

Parameters: This function accepts a single parameter weight which stores the weight (in pixels) of the stroke. The below programs illustrate the strokeWeight() function in p5.js: 

Example 1: This example uses strokeWeight() function to set the width of the stroke. 

javascript

function setup() {

    // Create Canvas of given size
    createCanvas(380, 170);
}

function draw() {

    // Set the background color
    background(220);

    // Set the stroke width
    strokeWeight(20);

    // Set the filled color
    fill('green');

    // Draw the circle
    circle(60, 60, 34);

    // Set the text size
    textSize(20);

    // Set the text to print
    text("GeeksForGeeks", 120, 70);
}

Output:

Example 2: This example uses strokeWeight() function to set the width of the stroke. 

javascript

function setup() {

    // Create Canvas of given size
    createCanvas(380, 170);
}

function draw() {

    // Set the background color
    background(220);

    // Set the stroke color
    stroke('orange');

    // Set the stroke width to 10
    strokeWeight(10); // Orange

    // Draw a line
    line(20, 70, 80, 70);

    // Set the stroke color
    stroke('white');

    // Set the stroke width to 8
    strokeWeight(8); // White

    // Draw a line
    line(20, 90, 80, 90);

    // Set stroke color
    stroke('green');

    // Set the stroke width to 6
    strokeWeight(6); // Green

    // Draw a line
    line(20, 110, 80, 110);
}

Output:

Reference: https://p5js.org/reference/#/p5/strokeWeight