Create a two exact rectangles and choose one and punch in .5 in the corner radius from the tool bar. Now on the other use the Fillet docker and punch in .5. Center them over each other. When viewed in wirerframe and you will see a noticeable difference on the corners. Not enough to make a big deal but I would expect no difference.
Zoom @ 255793%. Like Eskimo, I find it interesting. Just striking up conversation.
Interesting indeed.
Wonder why there is any difference at all.In theory there shouldn't be.
I find this behavior of CorelDraw interesting, but not troubling.
It makes sense to me that somewhere, at some level, curves created using different methods are not going to be absolutely identical to each other. In the examples I've seen so far, that "deviation from perfection" is happening at a level less than 0.01 mm.
It also makes sense to me that having two very nearly, but not quite identical curves could cause problems for the "smart fill" when it's trying to find boundaries.