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# Rotating an Object The following statement will rotate the object named "obj" through an angle (measured in radians) about an axis relative to an origin: obj.rotate(angle=a, axis=vec(x,y,z), origin=vec(xo,yo,zo)) If the origin is not given, rotation is relative to obj.pos: # relative to obj.pos: obj.rotate(angle=a, axis=vec(x,y,z)) If neither the axis nor the origin is specified, rotation is about obj.axis, relative to obj.pos: # about obj.axis, relative to obj.pos: obj.rotate(angle=a) The rotate function applies a transformation to the specified object (sphere, box, etc.). The transformation is a rotation of angle radians, counterclockwise around the line defined by origin and origin+axis. By default, rotations are around the object's own pos and axis. There are functions for converting between degrees and radians, where there are 2*pi radians in 360 degrees: radians(360) # equal to 2*pi degrees(2*pi) # equal to 360 Also see the rotation function available for vectors.

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