# p5.js rotationY Event

• Last Updated : 22 Apr, 2021

The system variable rotationY in p5.js is responsible for the rotation of mobile devices (smartphones and tablets) always along the y-axis. It can be used in the draw() function to continuously get the current rotation along the y-axis. If the graphics angleMode() is set to DEGREES, then the value will be in the range of -90 to 90. When it is set to RADIANS, the value will be between -PI/2 to PI/2.

Note: The order the rotations are called is important if all the three variables are used together. It is required to call them in the order Z, Y, and X to prevent inconsistencies.

Syntax:

`rotationY`

Example 1:

## Javascript

 `// Rotate the the device at 90 degree.``function` `setup() {``  ``createCanvas(600, 600, WEBGL);``}`` ` `function` `draw() {``  ``background(2);``   ` `  ``// Set the rotation to be equal to``  ``// the variable rotationY``  ``rotateY(radians(rotationY));``   ` `  ``fill(``'red'``);``  ``box(200, 200, 200);``}`

Output:

Example 2:

## Javascript

 `// Rotate the the device at  0 to 360 degree.``function` `setup() {``  ``createCanvas(600, 600, WEBGL);``}`` ` `function` `draw() {``  ``background(205, 105, 194);``   ` `  ``// Set the rotation to be equal to``  ``// the variable rotationY``  ``rotateY(radians(rotationY));``   ` `  ``fill(``'orange'``);``  ``sphere(140);``}`

Output:

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