The shape is there. postscript(and I assume PDF) has an arc primitive. however it is rasterized(drawn) in the reference implementation using bezier curves. Now

The shape is there. postscript(and I assume PDF) has an arc primitive. however it is rasterized(drawn) in the reference implementation using bezier curves. Now the postscript to servo control program(g-code?) interpreter might use the same bezier curve approximation, but it might not. I think if it were a formal complaint they would have to positively assert that their machined circles are following an inferior profile rather than just assume they are. g-code sort of sucks as a language. It is very primitive. I always thought it would be cool to have a postscript dialect that supported more than two axis to use as a low level language on computer driven machine tools.