Date: Mon, 30 Sep 2002 12:33:13 -0500 From: "Rob King" Subject: Re: 0GNav Sender: To: "Wolfgang Stuerzlinger" Cc: "3D UI list" <3d-ui@hitl.washington.edu> Message-id: <3D988AD9.B27E358@bellatlantic.net> MIME-version: 1.0 X-Mailer: Mozilla 4.78 [en] (Windows NT 5.0; U) Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: 7BIT Importance: Normal X-MSMail-Priority: Normal X-Accept-Language: en X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 X-Authentication-Info: Submitted using SMTP AUTH PLAIN at out002.verizon.netfrom [128.82.86.153] at Mon, 30 Sep 2002 12:33:14 -0500 References: <3D8A1C41.7729A7F7@bellatlantic.net> <3D986933.EE28F8C2@cs.yorku.ca> X-Authentication-warning: torch.hitl.washington.edu: majordom set sender toowner-3dui@hitl.washington.edu using -f X-Priority: 3 (Normal) A key paper in the psychology literature is by Parsons. It is much cited in subsequent work on orientation: Parsons, L. M., "Inability to Reason About an Object's Orientation Using an Axis and Angle of Rotation," Journal of Experimental Psychology, vol. 21, no. 6, pp. 1259-1277, 1995. Also, you might be interested in looking at: Zhai, S. and Milgram, P. Quantifying Coordination in Multiple DOF Movement and Its Application to Evaluating 6 DOF Input Devices. 320-327. 1988. ACM. CHI. I recommend the following two by Maurice Masilah. A poster presentation from CHI '99: M. R. Masliah, Quantifying Human Coordination in HCI and his dissertation: Masliah, M., "Measuring the Allocation of Control in 6 Degree Of Freedom Human-Computer Interaction Tasks." University of Toronto, 2001. You can find the first if you've got access to the PsycINFO service. The next two you can find via citeceer (citeseer.nj.nec.com). The dissertation can be downloaded by accessing Masliah's web page, (http://gypsy.rose.utoronto.ca/people/moman/). Good Luck, Rob Wolfgang Stuerzlinger wrote: > > Rob King wrote earlier: > > On the psychological front, there are a host of issues in sensation, > > perception and cognition that are at the heart of this. For example, it > > has been shown that humans are by and largely incapable of mentally > > conceptualizing the optimal path that rotates an object from one > > orientation to another, unless that path coincides with a natural axis. > > A natural axis is one that is a) vertical, b) horizontal, or c) in the > > direction that the user is looking. The consequence is that users tend > > to use a sequence of natural axis rotations (sort-of like thinking in > > Euler angles instead of quaternions). > > Hi Rob! > > Could you point me to the reference for this? > > Wolfgang Stuerzlinger > -- > Wolfgang Stuerzlinger Dept. of Computer Science; York University > CSB 3048; 4700 Keele Street; Toronto, Ontario, M3J 1P3; Canada > wolfgang@cs.yorku.ca http://ww