The rotateX() function in p5.js is used to rotate the shape or an object around the x-axis.
Syntax:
rotateX(angle)
Parameters: This function accepts single parameter angle which stores the angle by which rotation is to be done.
Below programs illustrate the rotateX() function in p5.js:
Example 1: This example uses rotateX() function to rotate an object around the x-axis.
javascript
function setup() {
// Create Canvas of given size
createCanvas(800, 550, WEBGL);
} function draw() {
// Set the background color
background(220);
// Set stroke weight
strokeWeight(12);
// Rotation function
rotate(PI / 7.0);
// Call to rotateX function
rotateX(millis() / 1000);
// Draw rectangle
rect(3, 3, 200, 39);
// Draw ellipse
ellipse(160, 160, 40, 40);
} |
Output:
Example 2: This example uses rotateX() function to rotate an object around the x-axis.
javascript
function setup() {
// Create canvas of given size
createCanvas(500, 500, WEBGL);
} function draw() {
// Set background color
background(200);
// Set property to rotate the
// shape about the x-axis
rotateX(frameCount * 0.01);
// Set stroke weight
strokeWeight(2);
// Set fill color
fill( "green" );
// Draw of height 100 and radius 50
cylinder(50, 100);
} |
Output:
Reference: https://p5js.org/reference/#/p5/rotateX