The IDLanROI::Rotate procedure method modifies the vertices for the region by applying a rotation.
            Syntax
            Obj->[IDLanROI::]Rotate, Axis, Angle [, CENTER=[x, y[, z]]]
            Arguments
            Axis
            A three-element vector of the form [x, y, z] describing the axis about which the region is to be rotated.
            Angle
            The angle, measured in degrees, by which the rotation is to occur.
            Keywords
            CENTER 
            Set this keyword to a two or three-element vector of the form [x, y], or [x, y, z] specifying the center of rotation. The default is [0, 0, 0]. IDL converts and applies this data in double-precision floating-point.
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