p5.js triangle() Function

The triangle() function is an inbuilt function in p5.js which is used to draw a triangle in a plane. This function accepts three vertices of triangle.
Syntax:

triangle(x1, y1, x2, y2, x3, y3)

Parameters: This function accepts six parameters as mentioned above and described below: 

• x1: This parameter accept the x-coordinate of first point.
• y1: This parameter accept the y-coordinate of first point.
• x2: This parameter accept the x-coordinate of second point.
• y2: This parameter accept the y-coordinate of second point.
• x3: This parameter accept the x-coordinate of third point.
• y3: This parameter accept the y-coordinate of third point.

Below programs illustrates the triangle() function in p5.js: 

• Program 1:
  

javascript

function setup() {
    createCanvas(400, 400);
}

function draw() {
    background(220);
    fill('lightgreen');

    // A triangle at (100, 250), (250, 170) and (330, 300)
    triangle(100, 250, 250, 170, 330, 300);
}

• Output:
  

• Program 2:
  

javascript

function setup() {
    createCanvas(400, 400);
}

function draw() {
    background(220);
    fill('red');

    // A triangle at (200, 100), (100, 200) and (200, 300)
    triangle(200, 100, 100, 200, 200, 300);
}

• Output:
  

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