I have read your message just after consulting the archive. Sorry for not cc-ing you on that one, I somehow thought you were already on the list. I have tried tr, br, bl and tl, and they output only a quarter oval,
Oh, right. What you correctly call a "quarter oval" is what I was thinking of in my mind as a "half oval". I am not sure that this was designed thoughtfully to do that. Oh, I think so. Any other result would be astonishing, and it surely won't change at this late date, anyway. Let's say "quarter oval". Thanks, Karl