v.rotate v.rotate is a general purpose object for rotation, skew, offsetting and scaling. v.rotate is a general purpose object for rotation, skew, offsetting and scaling. It is not as fast as v.zoom or v.offset for their particular function, but offers much greater flexibility. The output is interpolated to remove jaggies and aliasing. There are a lot of parameters to v.rotate. They can be grouped into two categories: pre-rotation and post-rotation. Pre-rotation parameters affect the scale, rotation and offset of the incoming stream relative to the incoming stream’s original frame boundaries. Post-rotation parameters (and the global rotation parameter itself) affect the scale, rotation and offset of the resulting stream relative to the output frame.

from the library : softVNS Format : External Environment : jitter / max commercial Max 4.x http://homepage.mac.com/davidrokeby/softVNS.html