Hi, I'm rotating an image 105 degrees on a polar grid. I know the top half of the polar grid is 0 degrees to 180 degrees, but what about the bottom half? Is it the same as the top 0 degrees to 180 degrees, or does it go all the way to 360 degrees. Oops, forgot to clarify in case my question is too vague. Ok, let's say I have an image on the top half of the grid which is 0 degrees to 180 degrees. I have to rotate it , and the new figure would end up on the bottom half the grid. Polar grids are shaped like a circle. I have to map the points of the original image and the new image. Would the bottom image points be 180 degrees to 360 degrees or 0 degrees to 180 degrees.