Introduction - If you have any usage issues, please Google them yourself
Draw a polygon, transformation to achieve the following: a) by letter U or u switch to the axis of rotation: rotation axis is perpendicular to the screen line, over the current window center or off center of the body (by pressing the U/u switch in the two possible ). After changing the axis of rotation occurred before the transformation is based on the accumulation of all transformations carried out. b) by the letter R or r, objects were rotating around the axis of rotation of a small angle d0 or-d0. The specific value of custom d0