Rotates the coordinate system.

By default, the positive x-axis points to the right and the positive y-axis points downward. The `rotate()`

function changes this orientation by rotating the coordinate system about the origin. Everything drawn after `rotate()`

is called will appear to be rotated.

The first parameter, `angle`

, is the amount to rotate. For example, calling `rotate(1)`

rotates the coordinate system clockwise 1 radian which is nearly 57˚. `rotate()`

interprets angle values using the current angleMode().

The second parameter, `axis`

, is optional. It's used to orient 3D rotations in WebGL mode. If a p5.Vector is passed, as in `rotate(QUARTER_PI, myVector)`

, then the coordinate system will rotate `QUARTER_PI`

radians about `myVector`

. If an array of vector components is passed, as in `rotate(QUARTER_PI, [1, 0, 0])`

, then the coordinate system will rotate `QUARTER_PI`

radians about a vector with the components `[1, 0, 0]`

.

By default, transformations accumulate. For example, calling `rotate(1)`

twice has the same effect as calling `rotate(2)`

once. The push() and pop() functions can be used to isolate transformations within distinct drawing groups.

Note: Transformations are reset at the beginning of the draw loop. Calling `rotate(1)`

inside the draw() function won't cause shapes to spin.

## Examples

## Syntax

`rotate(angle, [axis])`

## Parameters

angle of rotation in the current angleMode().

axis to rotate about in 3D.