RImage.Rotate90


public function Rotate90

Prototype:

public function Rotate90(angle)

Parameters

angle
the type of the rotation

Description:

This function rotates an image by a multiple of 90 degrees.
The angle parameter must have one of this values:
ROTATE_NONE
ROTATE_COUNTERCLOCKWISE
ROTATE_UPSIDEDOWN
ROTATE_CLOCKWISE

Return value:

This function returns null.