Translations:Assembly Basic Tutorial/8/en

Coming back to local and parent coordinate systems: the body is the perfect incarnation of that concept! Every feature beneath the body can't be moved directly, its placement is always empty. That means, the feature's geometry doesn't need to be rotated or translated if we want to express it in the bodies coordinate system. But we can move the body inside the global coordinate system by setting its placement, and then the global value of the feature's geometry is calculated by applying this transformation too. Remember, we rotate coordinate systems. That means if we transform the body system, everything beneath uses it as its personal global system. There is no need to move features at all. You want your whole design at a different place? Just set the body's placement!