The rotateZ() function in p5.js is used to rotate the shape or an object around the z-axis.
Syntax:
rotateZ(angle)
Parameters: This function accepts single parameter angle which stores the angle by which rotation is to be done.
Below programs illustrate the rotateZ() function in p5.js:
Example 1: This example uses rotateZ() function to rotate the an object around the z-axis.
javascript
function setup() { // Create Canvas of given size createCanvas(580, 550, WEBGL); } function draw() { // Set the background color background(220); // Set stroke weight strokeWeight(12); // Rotation function rotate(PI / 7.0); // Call to rotateZ function rotateZ(millis() / 1000); // Draw Rectangle rect(3, 3, 200, 39); // Draw ellipse ellipse(160, 160, 40, 40); } |
Output:
Example 2: This example uses rotateZ() function to rotate the an object around the z-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 z-axis rotateZ(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/rotateZ