This reference is for Processing 2.0+. If you have a previous version, use the reference included with your software. If you see any errors or have suggestions, please let us know. If you prefer a more technical reference, visit the Processing Javadoc.

Name

rotate()

Examples
example pic
translate(width/2, height/2);
rotate(PI/3.0);
rect(-26, -26, 52, 52);
Description Rotates a shape the amount specified by the angle parameter. Angles should be specified in radians (values from 0 to TWO_PI) or converted to radians with the radians() function.

Objects are always rotated around their relative position to the origin and positive numbers rotate objects in a clockwise direction. Transformations apply to everything that happens after and subsequent calls to the function accumulates the effect. For example, calling rotate(HALF_PI) and then rotate(HALF_PI) is the same as rotate(PI). All tranformations are reset when draw() begins again.

Technically, rotate() multiplies the current transformation matrix by a rotation matrix. This function can be further controlled by the pushMatrix() and popMatrix().
Syntax
rotate(angle)
rotate(angle, x, y, z)
Parameters
angle float: angle of rotation specified in radians
Returnsvoid
RelatedpopMatrix()
pushMatrix()
rotateX()
rotateY()
rotateZ()
scale()
radians()
Updated on March 27, 2014 07:26:08pm EDT

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