Path: utzoo!attcan!utgpu!utstat!jarvis.csri.toronto.edu!mailrus!uwm.edu!uakari.primate.wisc.edu!brutus.cs.uiuc.edu!rpi!crdgw1!crdgw1.ge.com!barnett From: barnett@crdgw1.crd.ge.com (Bruce Barnett) Newsgroups: comp.windows.misc Subject: Re: Pie menus Message-ID: <3768@crdgw1.crd.ge.com> Date: 8 Nov 89 17:37:41 GMT References: <1989Oct28.053358.1517@agate.berkeley.edu> Sender: news@crdgw1.crd.ge.com Reply-To: barnett@crdgw1.crd.ge.com (Bruce Barnett) Organization: GE Corp. R & D, Schenectady, NY Lines: 23 In-reply-to: mwm@mica.berkeley.edu (Mike (I'll think of something yet) Meyer) In article <1989Oct28.053358.1517@agate.berkeley.edu>, mwm@mica (Mike (I'll think of something yet) Meyer) writes: >If a pie menu system renders menus even if the selection has been >made, it's got a major misfeature, if not an outright bug. It sounds >like Don may have changed things so that it does the rendering anyway. >This is dissapointing. To quote Don's paper on PSIBER Space: "When you mouse ahead through a pie menu selection quickly enough, the menu is not displayed, and the shape of a pac-man briefly flashes on the screen, with its mouth pointing in the direction of the selected menu item. This "mouse ahead display suppression" speeds up interaction considerably by avoiding unnecessary menu display, and makes it practically impossible for the casual observer to follow what is going on. The flashing pac-man effect gives you some computationally inexpensive feedback of the menu selection, and reas- sures observers that you are racking up lots of points." "This paper will be presented at the 1989 Usenix Monterey Graphics workshop." -- Bruce G. Barnett uunet!crdgw1!barnett