p5.js strokeCap() Function

The strokeCap() function in p5.js is used to set the style of line endings. The ends of line can be rounded, squared or extended based on their parameters SQUARE, PROJECT, and ROUND. The default value is ROUND.

Syntax:

strokeCap( cap )

Parameters: This function accepts single parameter cap which holds the style of end of line (ROUND, SQUARE or PROJECT).

Example: This example shows all the different kinds of line ending edges.

function setup() {

    // Create canvas of given size
    createCanvas(400, 400);
}

function draw() {

    // Set the background color
    background(50);

    // Set the weight of line stroke
    strokeWeight(15);

    // Set the color of line stroke
    stroke(20, 250, 100);

    // Set different edges style
    strokeCap(SQUARE);
    line(100, 200, 300, 200);

    strokeCap(ROUND);
    line(100, 100, 300, 100);

    strokeCap(PROJECT);
    line(100, 300, 300, 300);
}

Output:

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